Line data Source code
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47 :
48 : // C++ Headers
49 : #include <cmath>
50 : #include <string>
51 :
52 : // ObjexxFCL Headers
53 : #include <ObjexxFCL/Array.functions.hh>
54 : #include <ObjexxFCL/Array2D.hh>
55 : // #include <ObjexxFCL/Fmath.hh>
56 :
57 : // EnergyPlus Headers
58 : #include <EnergyPlus/BranchNodeConnections.hh>
59 : #include <EnergyPlus/CurveManager.hh>
60 : #include <EnergyPlus/Data/EnergyPlusData.hh>
61 : #include <EnergyPlus/DataEnvironment.hh>
62 : #include <EnergyPlus/DataHVACGlobals.hh>
63 : #include <EnergyPlus/DataHeatBalFanSys.hh>
64 : #include <EnergyPlus/DataHeatBalance.hh>
65 : #include <EnergyPlus/DataIPShortCuts.hh>
66 : #include <EnergyPlus/DataLoopNode.hh>
67 : #include <EnergyPlus/DataWater.hh>
68 : #include <EnergyPlus/DataZoneEnergyDemands.hh>
69 : #include <EnergyPlus/DataZoneEquipment.hh>
70 : #include <EnergyPlus/EMSManager.hh>
71 : #include <EnergyPlus/FluidProperties.hh>
72 : #include <EnergyPlus/General.hh>
73 : #include <EnergyPlus/GlobalNames.hh>
74 : #include <EnergyPlus/HeatBalanceInternalHeatGains.hh>
75 : #include <EnergyPlus/InputProcessing/InputProcessor.hh>
76 : #include <EnergyPlus/NodeInputManager.hh>
77 : #include <EnergyPlus/OutAirNodeManager.hh>
78 : #include <EnergyPlus/OutputProcessor.hh>
79 : #include <EnergyPlus/Plant/DataPlant.hh>
80 : #include <EnergyPlus/PlantUtilities.hh>
81 : #include <EnergyPlus/Psychrometrics.hh>
82 : #include <EnergyPlus/RefrigeratedCase.hh>
83 : #include <EnergyPlus/ScheduleManager.hh>
84 : #include <EnergyPlus/UtilityRoutines.hh>
85 : #include <EnergyPlus/WaterManager.hh>
86 :
87 : namespace EnergyPlus::RefrigeratedCase {
88 :
89 : // MODULE INFORMATION:
90 : // AUTHOR Richard Raustad, FSEC
91 : // DATE WRITTEN Oct/Nov 2004
92 : // MODIFIED Shirey, FSEC Dec 2004; Hudson, ORNL Feb 2007, July 2007
93 : // MODIFIED Stovall, ORNL, April 2008 added detailed refrigeration systems
94 : // MODIFIED Stovall, ORNL, Fall 2009 added cascade condensers, secondary loops, and walk-ins.
95 : // MODIFIED Griffith, NREL, 2010, Plant upgrade, generalize plant fluid properties.
96 : // MODIFIED Fricke, ORNL, Fall 2011, added detailed transcritical CO2 refrigeration system.
97 : // RE-ENGINEERED na
98 :
99 : // PURPOSE OF THIS MODULE:
100 : // To simulate refrigerated cases,walk-in coolers, secondary loops,
101 : // compressor racks, and detailed refrigeration systems.
102 : // Case performance is varied based on specific operating conditions within the zone.
103 :
104 : // METHODOLOGY EMPLOYED:
105 : // Refrigerated cases are simulated based on performance information available from manufacturers
106 : // and knowing the latent heat ratio of the case cooling load which can be obtained from ASHRAE or
107 : // others who have completed research to quantify this value. The sensible case credits
108 : // (sensible cooling provided to the surrounding zone air) are calculated during input
109 : // processing by subtracting the fan, lighting, and anti-sweat heater energy from the
110 : // design sensible capacity (TotCap * (1-LHR) * RTF). The actual latent cooling provided
111 : // by the case (at the actual operating conditions) is calculated based on the latent performance
112 : // curve supplied by the user. The actual sensible cooling provided by the case (at the actual
113 : // operating conditions) is calculated by summing all sensible components (fan + light + anti-sweat +
114 : // sensible case credit). The case (evaporator) fans are assumed to be disabled during hot-gas or
115 : // electric defrost modes. A stocking schedule (W/m) is available for added load if desired.
116 : // Walk-In coolers are simulated based on the specified sum of the conductance*area of each wall and door facing
117 : // up to three (extensible) zones. Two types of doors are specified, stock doors and glass doors. For each category
118 : // of doors, schedules for door openings are used with ASHRAE models for infiltration
119 : // which are a function of the height of the door. That
120 : // infiltration is used to calculate the latent load on the cooler and the latent case credits for each zone.
121 : // The sensible case credit for each zone is the sum of the conductive and sensible infiltration load
122 : // for each surface/door facing that zone. Note that the latent portion of the infiltration is unused
123 : // during defrost to be consistent with decision for refrigerated cases.
124 : // Compressor racks are simulated by summing the attached refrigerated case and walk-in cooler
125 : // capacities. The energy use of the
126 : // compressor rack is then calculated with a simplified model for COP variation with temperature. Condenser fan power
127 : // is based on a user-supplied curve object. Racks are not scheduled.
128 : // Compressor racks may have indoor (in-zone) or outdoor condensers. If outdoors, the condensers may be cooled
129 : // by dry air cooling or evaporative cooling. A water-cooled condenser is also available by specifying water-cooling
130 : // as the Condenser Type. If a water-cooled condenser is utilized, a second entry to this module will
131 : // occur during the HVAC simulation as called from the NonZoneEquipmentManager.
132 : // Detailed refrigeration systems model each compressor individually using the manufacturer's rating curves.
133 : // A collection of such curves has been added in the datasets library. The curves produce the refrigeration
134 : // capacity and power consumption. The capacity needed is based on the sum of the case and walk-in loads (as is done
135 : // for the compressor racks). The compressors are dispatched to meet this load according to the order
136 : // prescribed in the compressor list input object. The condenser for each system can be air-cooled,
137 : // evaporative-cooled, or water cooled. For air and evap-cooled condensers, manufacturer's rating data
138 : // is input to describe the performance and to determine the required air flow rate, which is used to
139 : // calculate the fan power requirements. The fans can be described as single-speed, two-speed, or variable
140 : // speed. The condenser performance data also is used to calculate the condensing temperature, which is a function
141 : // of the heat sink temperature and the load on the condenser. This must be solved iteratively, checking on
142 : // the calculated refrigerant mass flow through the compressors. The solution usually requires less than 5 iterations.
143 : // The refrigerant state exiting the compressor group is known so the amount of heat available for
144 : // desuperheat reclaim is explicitly known.
145 : // The detailed refrigeration model allows the use of subcoolers,secondary loops, and cascade condensers
146 : // to transfer load from one suction group to another. This introduces the need for further iterations among
147 : // the systems. Three loops through the
148 : // systems are adequate to model these interactions. The detailed model will also calculate a variable suction
149 : // pressure for systems with controls that allow the suction temperature/pressure to float
150 : // up when the case loads are less than their design capacity.
151 :
152 : // Secondary Systems include case and walk-in refrigeration loads. However, the balance of the system is
153 : // made up of a heat exchanger and circulating pump(s) instead of a condenser and compressors.
154 : // The total load on the heat exchanger is the sum of the refrigeration loads, any pipe heat gains,
155 : // and the portion of the pump power that is absorbed by the circulating fluid. If the total load is
156 : // greater than the rated capacity of the secondary loop, the unmet load for any time step is carried over
157 : // to the next time step. Each secondary system appears as a load on a detailed refrigeration system. If
158 : // any of the cases or walk-ins served by a secondary are defrosted using hot brine, the primary system
159 : // serving the secondary loop receives the defrost energy credits (i.e., heat reclaim used to generate defrost
160 : // energy).
161 :
162 : // Cascade Condensers allow the use of a higher temperature refrigeration system (primary system) to serve as a
163 : // heat rejection sink for a lower temperature refrigeration system (secondary system). The condensing
164 : // temperature can be fixed or can be allowed to float according to the minimum required evaporating temperature
165 : // for other loads upon the primary system. For cases and walk-ins served by cascade condensers, energy associated
166 : // with hot gas defrost is reclaimed from the primary system. The refrigeration load the cascade condenser
167 : // places upon the primary system is the sum of all case and walk-in loads served by the secondary system plus
168 : // the sum of the secondary loop's compressor power. The same name used to identify the condenser in the
169 : // secondary loop is used to identify the cascade load on the primary system.
170 :
171 : // Detailed transcritical CO2 refrigeration systems model each compressor individually using the manufacturer's
172 : // performance data. A collection of CO2 compressor performance curves has been added in the datasets library.
173 : // The curves produce the refrigeration capacity and power consumption. The capacity required is based on the sum
174 : // of the case and walk-in loads and the compressors are dispatched to meet this load according to the order
175 : // prescribed in the compressor list input object. Currently, an air-cooled gas cooler is modeled, and
176 : // manufacturer's rating data is input to describe the performance and to determine the required fan power
177 : // requirements. The gas cooler fans can be described as single-speed, two-speed, or variable speed. During
178 : // transcritical operation, the optimal gas cooler pressure, which maximizes the system's COP, is determined as
179 : // a function of the ambient air temperature. During subcritical operation, the condensing pressure is allowed to
180 : // float with ambient temperature in order to achieve maximum performance.
181 :
182 : // This module was designed to be accessed once for each time step. It uses several accumulating variables
183 : // to carry unmet loads from one time step to the next (cases/walk-ins and compressors. Also, it meets
184 : // heat reclaim needs with the loads from the previous time step (because they are unknown for the current
185 : // zone time step). However, the loads time step may be repeated, such as when a demand manager is used.
186 : // For that purpose, the values for these accumulating variables are saved at the start of each time step
187 : // and reset whenever the time step is repeated. (see the init subroutine.)
188 : // This correction is also applied when working on the system time step for coil-type loads by setting the saved values
189 : // at the start of each system time step to the value at the end of the previous time step. They are reset
190 : // to that value at each sys time step iteration. (see InitRefrigeration)
191 :
192 : // REFERENCES:
193 : // Specific references are provided for the equipment simulation subroutines below.
194 :
195 : // True at the start of each time step, False after first subtime step of time step
196 : // includes DataGlobals::CurrentTime, in fractional hours, from start of day. Uses Loads time step.
197 : // includes DataGlobals::NumOfZones
198 :
199 : // Following constant approp for R22, future may make f(refrigerant)
200 : Real64 constexpr CaseSuperheat(4.0); // case superheat used to control thermal expansion valve, ASHRAE 2006 p 44.6 (C)
201 : Real64 constexpr TransCaseSuperheat(10.0); // case superheat for transcritical CO2 systems (C)
202 :
203 : // Next two constants used to autosize evap condenser
204 : Real64 constexpr CondPumpRatePower(0.004266); // evap condenser pump rated, Wpump/Wcapacity (15 W/ton)
205 : Real64 constexpr AirVolRateEvapCond(0.000144); // evap cond air flow rate for autosize, equiv 850 cfm/ton (m3/W-s)
206 : Real64 constexpr EvapCutOutTdb(4.0); // shut off evap water flow if outdoor drybulb < evapcutOutTdb (C)
207 :
208 : // Miscellaneous constants
209 : Real64 constexpr MyLargeNumber(1.0e9);
210 : Real64 constexpr MySmallNumber(1.0e-9);
211 : Real64 constexpr Rair(0.3169); // Air resistance used with Heat Balance anti-sweat (AS) heater
212 : Real64 constexpr IceMeltEnthalpy(335000.0); // heat of fusion of water J/kg
213 : Real64 constexpr TempTooHotToFrost(5.0); // C, used to check for frosting conditions on evaporator coils
214 : Real64 constexpr IcetoVaporEnthalpy(2833000.0); // J/kg to freeze water vapor to ice
215 : Real64 constexpr SpecificHeatIce(2000.0); // in the likely range (2040 at 0C and 1950 at -20C) (J/kg-C)
216 : Real64 constexpr CondAirVolExponentDry(1.58); // exponent for forced air over a cylinder, = 1/.633 per ASHRAE 2005 (page 3.15)
217 : Real64 constexpr CondAirVolExponentEvap(1.32); // exponent for evap condenser air vol flow, = 1/.76 per Manske, 1999
218 : Real64 constexpr EvaporatorAirVolExponent(1.54); // exponent for evaporator air vol flow, = 1/.65 per Manske, 1999, page 35
219 : Real64 constexpr FanHalfSpeedRatio(0.1768); // = 1/(2**2.5) for power step for two speed fan
220 : Real64 constexpr CapFac60Percent(0.60); // = 60%, load served by half power 2-speed fan
221 :
222 : static constexpr std::array<Real64, 5> EuropeanWetCoilFactor = {1.35, 1.15, 1.05, 1.01, 1.0};
223 : static constexpr std::array<Real64, 5> EuropeanAirInletTemp = {10.0, 0.0, -18.0, -25.0, -34.0};
224 :
225 : constexpr std::array<std::string_view, (int)WIStockDoor::Num> wiStockDoorNames = {"None", "AirCurtain", "StripCurtain"};
226 : constexpr std::array<std::string_view, (int)WIStockDoor::Num> wiStockDoorNamesUC = {"NONE", "AIRCURTAIN", "STRIPCURTAIN"};
227 :
228 : constexpr std::array<std::string_view, (int)CompressorSuctionPressureCtrl::Num> compressorSuctionPressureCtrlNames = {"FloatSuctionTemperature",
229 : "ConstantSuctionTemperature"};
230 : constexpr std::array<std::string_view, (int)CompressorSuctionPressureCtrl::Num> compressorSuctionPressureCtrlNamesUC = {"FLOATSUCTIONTEMPERATURE",
231 : "CONSTANTSUCTIONTEMPERATURE"};
232 :
233 : constexpr std::array<std::string_view, (int)SubcoolerType::Num> subcoolerTypeNames = {"LiquidSuction", "Mechanical"};
234 : constexpr std::array<std::string_view, (int)SubcoolerType::Num> subcoolerTypeNamesUC = {"LIQUIDSUCTION", "MECHANICAL"};
235 :
236 : constexpr std::array<std::string_view, (int)DefrostCtrlType::Num> defrostCtrlTypeNames = {"TimeSchedule", "TemperatureTermination"};
237 : constexpr std::array<std::string_view, (int)DefrostCtrlType::Num> defrostCtrlTypeNamesUC = {"TIMESCHEDULE", "TEMPERATURETERMINATION"};
238 :
239 : constexpr std::array<std::string_view, (int)SecFluidType::Num> secFluidTypeNames = {"FluidAlwaysLiquid", "FluidPhaseChange"};
240 : constexpr std::array<std::string_view, (int)SecFluidType::Num> secFluidTypeNamesUC = {"FLUIDALWAYSLIQUID", "FLUIDPHASECHANGE"};
241 :
242 : constexpr std::array<std::string_view, (int)SecPumpCtrl::Num> secPumpCtrlNames = {"Constant", "Variable"};
243 : constexpr std::array<std::string_view, (int)SecPumpCtrl::Num> secPumpCtrlNamesUC = {"CONSTANT", "VARIABLE"};
244 :
245 : constexpr std::array<std::string_view, (int)EnergyEqnForm::Num> energyEqnFormNames = {
246 : "None", "CaseTemperatureMethod", "RelativeHumidityMethod", "DewpointMethod"};
247 : constexpr std::array<std::string_view, (int)EnergyEqnForm::Num> energyEqnFormNamesUC = {
248 : "NONE", "CASETEMPERATUREMETHOD", "RELATIVEHUMIDITYMETHOD", "DEWPOINTMETHOD"};
249 :
250 : constexpr std::array<std::string_view, (int)CascadeCndsrTempCtrlType::Num> cascaseCndsrTempCtrlTypeNames = {"Fixed", "Float"};
251 : constexpr std::array<std::string_view, (int)CascadeCndsrTempCtrlType::Num> cascaseCndsrTempCtrlTypeNamesUC = {"FIXED", "FLOAT"};
252 :
253 : constexpr std::array<std::string_view, (int)CndsrFlowType::Num> cndsrFlowTypeNames = {"VariableFlow", "ConstantFlow"};
254 : constexpr std::array<std::string_view, (int)CndsrFlowType::Num> cndsrFlowTypeNamesUC = {"VARIABLEFLOW", "CONSTANTFLOW"};
255 :
256 : constexpr std::array<std::string_view, (int)FanSpeedCtrlType::Num> fanSpeedCtrlTypeNames = {"VariableSpeed", "FixedLinear", "TwoSpeed", "Fixed"};
257 : constexpr std::array<std::string_view, (int)FanSpeedCtrlType::Num> fanSpeedCtrlTypeNamesUC = {"VARIABLESPEED", "FIXEDLINEAR", "TWOSPEED", "FIXED"};
258 :
259 : constexpr std::array<std::string_view, (int)FanSpeedCtrlType::Num> heatRejLocationNames = {"Outdoors", "Zone"};
260 : constexpr std::array<std::string_view, (int)FanSpeedCtrlType::Num> heatRejLocationNamesUC = {"OUTDOORS", "ZONE"};
261 :
262 : constexpr std::array<std::string_view, (int)RefCaseDefrostType::Num> refCaseDefrostTypeNames = {
263 : "None", "OffCycle", "HotFluid", "HotFluidWithTemperatureTermination", "Electric", "ElectricOnDemand", "ElectricWithTemperatureTermination"};
264 : constexpr std::array<std::string_view, (int)RefCaseDefrostType::Num> refCaseDefrostTypeNamesUC = {
265 : "NONE", "OFFCYCLE", "HOTFLUID", "HOTFLUIDWITHTEMPERATURETERMINATION", "ELECTRIC", "ELECTRICONDEMAND", "ELECTRICWITHTEMPERATURETERMINATION"};
266 :
267 : constexpr std::array<std::string_view, (int)ASHtrCtrlType::Num> asHtrCtrlTypeNames = {
268 : "None", "Constant", "Linear", "DewpointMethod", "HeatBalanceMethod"};
269 : constexpr std::array<std::string_view, (int)ASHtrCtrlType::Num> asHtrCtrlTypeNamesUC = {
270 : "NONE", "CONSTANT", "LINEAR", "DEWPOINTMETHOD", "HEATBALANCEMETHOD"};
271 :
272 : constexpr std::array<std::string_view, (int)RatingType::Num> ratingTypeNames = {"CapacityTotalSpecificConditions",
273 : "EuropeanSC1Standard",
274 : "EuropeanSC1NominalWet",
275 : "EuropeanSC2Standard",
276 : "EuropeanSC2NominalWet",
277 : "EuropeanSC3Standard",
278 : "EuropeanSC3NominalWet",
279 : "EuropeanSC4Standard",
280 : "EuropeanSC4NominalWet",
281 : "EuropeanSC5Standard",
282 : "EuropeanSC5NominalWet",
283 : "UnitLoadFactorSensibleOnly"};
284 : constexpr std::array<std::string_view, (int)RatingType::Num> ratingTypeNamesUC = {"CAPACITYTOTALSPECIFICCONDITIONS",
285 : "EUROPEANSC1STANDARD",
286 : "EUROPEANSC1NOMINALWET",
287 : "EUROPEANSC2STANDARD",
288 : "EUROPEANSC2NOMINALWET",
289 : "EUROPEANSC3STANDARD",
290 : "EUROPEANSC3NOMINALWET",
291 : "EUROPEANSC4STANDARD",
292 : "EUROPEANSC4NOMINALWET",
293 : "EUROPEANSC5STANDARD",
294 : "EUROPEANSC5NOMINALWET",
295 : "UNITLOADFACTORSENSIBLEONLY"};
296 :
297 : constexpr std::array<std::string_view, (int)SHRCorrectionType::Num> shrCorrectionTypeNames = {
298 : "LinearSHR60", "QuadraticSHR", "European", "TabularRHxDT1xTRoom"};
299 : constexpr std::array<std::string_view, (int)SHRCorrectionType::Num> shrCorrectionTypeNamesUC = {
300 : "LINEARSHR60", "QUADRATICSHR", "EUROPEAN", "TABULARRHXDT1XTROOM"};
301 :
302 : constexpr std::array<std::string_view, (int)VerticalLoc::Num> verticalLocNames = {"Ceiling", "Middle", "Floor"};
303 : constexpr std::array<std::string_view, (int)VerticalLoc::Num> verticalLocNamesUC = {"CEILING", "MIDDLE", "FLOOR"};
304 :
305 : constexpr std::array<std::string_view, (int)DefrostType::Num> defrostTypeNames = {"HotFluid", "Electric", "None", "OffCycle"};
306 : constexpr std::array<std::string_view, (int)DefrostType::Num> defrostTypeNamesUC = {"HOTFLUID", "ELECTRIC", "NONE", "OFFCYCLE"};
307 :
308 : constexpr std::array<std::string_view, (int)CriticalType::Num> criticalTypeNames = {"Subcritical", "Transcritical"};
309 : constexpr std::array<std::string_view, (int)CriticalType::Num> criticalTypeNamesUC = {"SUBCRITICAL", "TRANSCRITICAL"};
310 :
311 : constexpr std::array<std::string_view, (int)IntercoolerType::Num> intercoolerTypeNames = {"None", "Flash Intercooler", "Shell-and-Coil Intercooler"};
312 : constexpr std::array<std::string_view, (int)IntercoolerType::Num> intercoolerTypeNamesUC = {
313 : "NONE", "FLASH INTERCOOLER", "SHELL-AND-COIL INTERCOOLER"};
314 :
315 : constexpr std::array<std::string_view, (int)IntercoolerType::Num> transSysTypeNames = {"SingleStage", "TwoStage"};
316 : constexpr std::array<std::string_view, (int)IntercoolerType::Num> transSysTypeNamesUC = {"SINGLESTAGE", "TWOSTAGE"};
317 :
318 3184668 : void ManageRefrigeratedCaseRacks(EnergyPlusData &state)
319 : {
320 :
321 : // SUBROUTINE INFORMATION:
322 : // AUTHOR Richard Raustad, FSEC
323 : // DATE WRITTEN Oct/Nov 2004
324 : // MODIFIED Shirey, FSEC Dec 2004, Stovall, ORNL, May 2008
325 : // RE-ENGINEERED na
326 :
327 : // PURPOSE OF THIS SUBROUTINE:
328 : // This subroutine is called from HVACManager.cc, subroutine ManageHVAC to
329 : // manage refrigerated cases and associated compressor racks on zone time step
330 : // OR from SimAirChillerSet in this module on sys time step (Stovall 2011)
331 :
332 : // METHODOLOGY EMPLOYED:
333 : // Each compressor rack is modeled by first simulating the attached refrigeration loads. The
334 : // loads can include refrigerated cases, walk-in coolers, and secondary fluid chillers. The sum
335 : // of the total heat transfer for all attached loads determines the load on the compressor rack.
336 : // For the refrigeration rack approach, a simple model for variation of COP with
337 : // condensing temperature is used to determine rack power and energy consumption.
338 : // For the detailed system approach, the compressors and condensers are modeled individually
339 : // using manufacturer's data and rated performance curves.
340 : // Inter-system heat transfer via subcoolers and cascade condensers can be accommodated.
341 : // Secondary refrigeration cycles are also available.
342 :
343 3184668 : auto &RefrigRack = state.dataRefrigCase->RefrigRack;
344 :
345 3184668 : if (!state.dataRefrigCase->ManageRefrigeration) {
346 2716169 : return;
347 : }
348 :
349 468499 : CheckRefrigerationInput(state);
350 :
351 468499 : InitRefrigeration(state);
352 :
353 : // ManageRefrigeratedCaseRacks is called on each zone time step.
354 : // However, if have chillers, ManageRefrigeration will be .TRUE. and will
355 : // need to bounce back. (InitRefrig has to be called anyway to zero values at zone time step.)
356 : // Therefore...
357 468499 : if ((!state.dataRefrigCase->HaveCasesOrWalkins) && (!state.dataRefrigCase->UseSysTimeStep)) {
358 : // Zero requests for cooling water from plant or tank
359 2891 : ZeroHVACValues(state);
360 2891 : return;
361 : }
362 : // Following case should never occur, but just for completeness:
363 465608 : if ((!state.dataRefrigCase->HaveChillers) && (state.dataRefrigCase->UseSysTimeStep)) {
364 0 : return;
365 : }
366 :
367 : // Refrigerated cases are not simulated the first time through, replicate this on beginning of next environment
368 465608 : if (state.dataGlobal->BeginEnvrnFlag && state.dataRefrigCase->MyEnvrnFlag) {
369 321 : state.dataRefrigCase->MyEnvrnFlag = false;
370 321 : return;
371 : }
372 465287 : if (!state.dataGlobal->BeginEnvrnFlag) {
373 464512 : state.dataRefrigCase->MyEnvrnFlag = true;
374 : }
375 :
376 465287 : if (state.dataRefrigCase->HaveRefrigRacks) {
377 256304 : for (int RackNum = 1; RackNum <= state.dataRefrigCase->NumRefrigeratedRacks; ++RackNum) {
378 170642 : RefrigRack(RackNum).CalcRackSystem(state);
379 170642 : RefrigRack(RackNum).ReportRackSystem(state, RackNum);
380 : }
381 : }
382 :
383 465287 : if (state.dataRefrigCase->HaveDetailedRefrig) {
384 395801 : SimulateDetailedRefrigerationSystems(state);
385 : }
386 465287 : if (state.dataRefrigCase->HaveDetailedTransRefrig) {
387 2022 : SimulateDetailedTransRefrigSystems(state);
388 : }
389 : }
390 :
391 801 : void GetRefrigerationInput(EnergyPlusData &state)
392 : {
393 :
394 : // SUBROUTINE INFORMATION:
395 : // AUTHOR Richard Raustad, FSEC
396 : // DATE WRITTEN Oct/Nov 2004
397 : // MODIFIED Shirey, FSEC Dec 2004; Hudson, ORNL Feb 2007, July 2007
398 : // MODIFIED Stovall, ORNL April 2008, Assisted by Hugh Henderson
399 : // RE-ENGINEERED na
400 :
401 : // PURPOSE OF THIS SUBROUTINE:
402 : // GetObjectItem is called to read refrigerated case, rack, compressor, and condenser information
403 : // Lists of cases and compressors are then correlated to the appropriate system.
404 : // The nominal ratings of all components are then compared and a warning is printed if the system is not balanced
405 :
406 : // METHODOLOGY EMPLOYED:
407 : // GetObjectItem is called to read refrigerated case information
408 :
409 : static constexpr std::string_view TrackMessage("from refrigerated case");
410 : static constexpr std::string_view RoutineName("GetRefrigerationInput: ");
411 : static constexpr std::string_view routineName = "GetRefrigerationInput";
412 : static constexpr std::string_view TrackMessageAlt("GetInput in RefrigeratedCase");
413 :
414 : // input in both watts and flow rate
415 801 : int constexpr NumWIAlphaFieldsBeforeZoneInput(9); // Used to cycle through zones on input for walk in coolers
416 801 : int constexpr NumWIAlphaFieldsPerZone(4); // Used to cycle through zones on input for walk in coolers
417 801 : int constexpr NumWINumberFieldsBeforeZoneInput(12); // Used to cycle through zones on input for walk in coolers
418 801 : int constexpr NumWINumberFieldsPerZone(8); // Used to cycle through zones on input for walk in coolers
419 801 : Real64 constexpr CondARI460DelT(16.7); // Rated sat cond temp - dry bulb air T for air-cooled Condensers, ARI460
420 801 : Real64 constexpr CondARI460Tcond(51.7); // Rated sat cond temp for air-cooled cond, ARI 460
421 801 : Real64 constexpr CondARI490DelT(15.0); // Rated sat cond temp - wet bulb air T for evap-cooled Cond w R22, ARI490
422 801 : Real64 constexpr CondARI490Tcond(40.6); // Rated sat cond temp for evap-cooled cond with R22, ARI 490
423 801 : Real64 constexpr DelEvapTDefault(5.0); // default difference between case T and evap T (C)
424 801 : Real64 constexpr DefaultCascadeCondApproach(3.0); // Cascade condenser approach temperature difference (deltaC)
425 801 : Real64 constexpr DefaultCircRate(2.5); // Phase change liquid overfeed circulating rate (ASHRAE definition)
426 801 : Real64 constexpr DefaultWISurfaceUValue(0.3154); // equiv R18 in Archaic American units (W/m2-delta T)
427 801 : Real64 constexpr DefaultWIUValueGlassDr(1.136); // equiv R5 in Archaic American units (W/m2-delta T)
428 801 : Real64 constexpr DefaultWIUValueStockDr(0.3785); // equiv R15 in Archaic American units (W/m2-delta T)
429 801 : Real64 constexpr DefaultWIHeightGlassDr(1.5); // glass door height in walk-in cooler (m)
430 801 : Real64 constexpr DefaultWIHeightStockDr(3.0); // stock door height in walk-in cooler (m)
431 801 : Real64 constexpr PumpImpellerEfficiency(0.78); // same as used in pump auto-sizing, dimensionless
432 801 : Real64 constexpr PumpMotorEfficiency(0.85); // suggested as average value in ITT/Gould pump references,
433 :
434 801 : Array1D_string Alphas; // Alpha items for object
435 801 : Array1D_string cAlphaFieldNames; // Alpha field names (from input processor)
436 801 : Array1D_string cNumericFieldNames; // Numeric field names (from input processor)
437 801 : std::string CurrentModuleObject; // Object type for getting and error messages
438 :
439 801 : Array1D_bool lAlphaBlanks; // Logic array, alpha input blank = .TRUE.
440 801 : Array1D_bool lNumericBlanks; // Logic array, numeric input blank = .TRUE.
441 801 : bool ErrorsFound(false); // Set to true if errors in input, fatal at end of routine
442 :
443 801 : int AlphaNum(0); // Used to cycle through input
444 801 : int IOStatus(0); // Used in GetObjectItem
445 801 : int MaxNumAlphasRack(0); // Maximum number of alphas for rack object
446 801 : int MaxNumAlphasAirChiller(0); // Maximum number of alphas for air chiller
447 801 : int MaxNumAlphasAll(0); // Maximum number of alphas for all objects
448 801 : int MaxNumAlphasSys(0); // Maximum number of alphas for system object
449 801 : int MaxNumAlphasTransSys(0); // Maximum number of alphas for transcritical system object
450 801 : int MaxNumAlphasChillerSet(0); // Maximum number of alphas for chiller set
451 801 : int MaxNumAlphasConda(0); // Maximum number of alphas for air-cooled condenser object
452 801 : int MaxNumAlphasConde(0); // Maximum number of alphas for evap-cooled condenser object
453 801 : int MaxNumAlphasCondw(0); // Maximum number of alphas for water-cooled condenser object
454 801 : int MaxNumAlphasGasCoolera(0); // Maximum number of alphas for air-cooled gas cooler object
455 801 : int MaxNumAlphasComp(0); // Maximum number of alphas for compressor object
456 801 : int MaxNumAlphasCompressorList(0); // Maximum number of alphas for compressor list objects
457 801 : int MaxNumAlphasCase(0); // Maximum number of alphas for case object
458 801 : int MaxNumAlphasCaseAndWalkInList(0); // Maximum number of alphas in CaseAndWalkInList
459 801 : int MaxNumAlphasWalkIn(0); // Maximum number of alphas for walkin object
460 801 : int MaxNumAlphasSecond(0); // Maximum number of alphas for air chiller object
461 801 : int MaxNumNumbersAirChiller(0); // Maximum number of numbers for air chiller object
462 801 : int MaxNumNumbersSecond(0); // Maximum number of numbers for secondary system object
463 801 : int MaxNumNumbersWalkIn(0); // Maximum number of numbers for walkin object
464 801 : int MaxNumNumbersCase(0); // Maximum number of numbers for case object
465 801 : int MaxNumNumbersCaseAndWalkInList(0); // Maximum number of numbers in CaseAndWalkInList
466 801 : int MaxNumNumbersRack(0); // Maximum number of numbers for rack object
467 801 : int MaxNumNumbersAll(0); // Maximum number of numeric inputs for all objects
468 801 : int MaxNumNumbersSys(0); // Maximum number of numbers for system object
469 801 : int MaxNumNumbersTransSys(0); // Maximum number of numbers for transcritical system object
470 801 : int MaxNumNumbersChillerSet(0); // Maximum number of numbers for chiller set object
471 801 : int MaxNumNumbersConda(0); // Maximum number of numbers for air-cooled condenser object
472 801 : int MaxNumNumbersConde(0); // Maximum number of numbers for evap-cooled condenser object
473 801 : int MaxNumNumbersCondw(0); // Maximum number of numbers for water-cooled condenser object
474 801 : int MaxNumNumbersGasCoolera(0); // Maximum number of numbers for air-cooled gas cooler object
475 801 : int MaxNumNumbersComp(0); // Maximum number of numbers for compressor object
476 801 : int MaxNumNumbersCompressorList(0); // Maximum number of numbers
477 801 : int MaxNumArgs(0); // Max number of alphas and numbers (arguments) for rack object
478 801 : int NumAlphas(0); // Number of Alphas for each GetObjectItem call
479 801 : int NumCases(0); // Number of refrigerated cases for single system
480 801 : int NumNum(0); // Used to cycle through input
481 801 : int NumNumbers(0); // Number of Numbers for each GetObjectItem call
482 801 : int NumDisplayCases(0); // Counter for refrigerated cases in GetInput do loop
483 801 : int NumWalkIns(0); // Number of walk ins
484 801 : int RefrigSysNum(0);
485 801 : int RefrigIndex(0); // Index used in fluid property routines
486 801 : Real64 DeltaHPhaseChange(0.0); // Secondary loop enthalpy change in condenser w overfeed system (J/g)
487 801 : Real64 DelTempMin(0.0); // min temperature for heat rej curve for air cooled condenser (C)
488 801 : Real64 DelTempMax(0.0); // max temperature for heat rej curve for air cooled condenser (C)
489 801 : Real64 DensityBrineRated(0.0); // density of circ fluid in secondary loop
490 801 : Real64 DensityPhaseChange(0.0); // Secondary loop density at condensing temperature w overfeed system (g/m3)
491 801 : Real64 NominalTotalCompCapLP(0.0); // Total of nominal low pressure compressor capacities, used for rough input check (W) (Transcritical CO2)
492 801 : Real64 NominalTotalCompCapHP(0.0);
493 801 : Array1D<Real64> Numbers; // Numeric items for object
494 801 : Array2D<Real64> DayValues; // Array of schedule values
495 :
496 801 : auto &RefrigCase = state.dataRefrigCase->RefrigCase;
497 801 : auto &RefrigRack = state.dataRefrigCase->RefrigRack;
498 801 : auto &CaseRAFraction = state.dataRefrigCase->CaseRAFraction;
499 801 : auto &System = state.dataRefrigCase->System;
500 801 : auto &TransSystem = state.dataRefrigCase->TransSystem;
501 801 : auto &Condenser = state.dataRefrigCase->Condenser;
502 801 : auto &Compressor = state.dataRefrigCase->Compressor;
503 801 : auto &GasCooler = state.dataRefrigCase->GasCooler;
504 801 : auto &Subcooler = state.dataRefrigCase->Subcooler;
505 801 : auto &CaseAndWalkInList = state.dataRefrigCase->CaseAndWalkInList;
506 801 : auto &CompressorLists = state.dataRefrigCase->CompressorLists;
507 801 : auto &Secondary = state.dataRefrigCase->Secondary;
508 801 : auto &TransferLoadList = state.dataRefrigCase->TransferLoadList;
509 801 : auto &WalkIn = state.dataRefrigCase->WalkIn;
510 801 : auto &WarehouseCoil = state.dataRefrigCase->WarehouseCoil;
511 801 : auto &AirChillerSet = state.dataRefrigCase->AirChillerSet;
512 801 : auto &CoilSysCredit = state.dataRefrigCase->CoilSysCredit;
513 801 : auto &CaseWIZoneReport = state.dataRefrigCase->CaseWIZoneReport;
514 :
515 1602 : state.dataRefrigCase->NumSimulationCascadeCondensers =
516 801 : state.dataInputProcessing->inputProcessor->getNumObjectsFound(state, "Refrigeration:Condenser:Cascade");
517 801 : state.dataRefrigCase->NumSimulationCases = state.dataInputProcessing->inputProcessor->getNumObjectsFound(state, "Refrigeration:Case");
518 1602 : state.dataRefrigCase->NumSimulationCaseAndWalkInLists =
519 801 : state.dataInputProcessing->inputProcessor->getNumObjectsFound(state, "Refrigeration:CaseAndWalkInList");
520 801 : state.dataRefrigCase->NumRefrigeratedRacks = state.dataInputProcessing->inputProcessor->getNumObjectsFound(state, "Refrigeration:CompressorRack");
521 1602 : state.dataRefrigCase->NumSimulationSecondarySystems =
522 801 : state.dataInputProcessing->inputProcessor->getNumObjectsFound(state, "Refrigeration:SecondarySystem");
523 1602 : state.dataRefrigCase->NumSimulationTransferLoadLists =
524 801 : state.dataInputProcessing->inputProcessor->getNumObjectsFound(state, "Refrigeration:TransferLoadList");
525 801 : state.dataRefrigCase->NumSimulationWalkIns = state.dataInputProcessing->inputProcessor->getNumObjectsFound(state, "Refrigeration:WalkIn");
526 801 : state.dataRefrigCase->NumRefrigSystems = state.dataInputProcessing->inputProcessor->getNumObjectsFound(state, "Refrigeration:System");
527 1602 : state.dataRefrigCase->NumTransRefrigSystems =
528 801 : state.dataInputProcessing->inputProcessor->getNumObjectsFound(state, "Refrigeration:TranscriticalSystem");
529 1602 : state.dataRefrigCase->NumSimulationCondAir =
530 801 : state.dataInputProcessing->inputProcessor->getNumObjectsFound(state, "Refrigeration:Condenser:AirCooled");
531 1602 : state.dataRefrigCase->NumSimulationCondEvap =
532 801 : state.dataInputProcessing->inputProcessor->getNumObjectsFound(state, "Refrigeration:Condenser:EvaporativeCooled");
533 1602 : state.dataRefrigCase->NumSimulationCondWater =
534 801 : state.dataInputProcessing->inputProcessor->getNumObjectsFound(state, "Refrigeration:Condenser:WaterCooled");
535 1602 : state.dataRefrigCase->NumSimulationGasCooler =
536 801 : state.dataInputProcessing->inputProcessor->getNumObjectsFound(state, "Refrigeration:GasCooler:AirCooled");
537 801 : state.dataRefrigCase->NumRefrigCondensers = state.dataRefrigCase->NumSimulationCondAir + state.dataRefrigCase->NumSimulationCondEvap +
538 801 : state.dataRefrigCase->NumSimulationCondWater + state.dataRefrigCase->NumSimulationCascadeCondensers;
539 801 : state.dataRefrigCase->NumSimulationCompressors = state.dataInputProcessing->inputProcessor->getNumObjectsFound(state, "Refrigeration:Compressor");
540 801 : state.dataRefrigCase->NumSimulationSubcoolers = state.dataInputProcessing->inputProcessor->getNumObjectsFound(state, "Refrigeration:Subcooler");
541 801 : int NumCompressorLists = state.dataInputProcessing->inputProcessor->getNumObjectsFound(state, "Refrigeration:CompressorList");
542 1602 : state.dataRefrigCase->NumRefrigChillerSets =
543 801 : state.dataInputProcessing->inputProcessor->getNumObjectsFound(state, "ZoneHVAC:RefrigerationChillerSet");
544 1602 : state.dataRefrigCase->NumSimulationRefrigAirChillers =
545 801 : state.dataInputProcessing->inputProcessor->getNumObjectsFound(state, "Refrigeration:AirChiller");
546 :
547 : // Set flags used later to avoid unnecessary steps.
548 801 : if (state.dataRefrigCase->NumRefrigeratedRacks == 0) {
549 770 : state.dataRefrigCase->HaveRefrigRacks = false;
550 : }
551 801 : if (state.dataRefrigCase->NumRefrigSystems == 0) {
552 786 : state.dataRefrigCase->HaveDetailedRefrig = false;
553 : }
554 801 : if (state.dataRefrigCase->NumTransRefrigSystems == 0) {
555 800 : state.dataRefrigCase->HaveDetailedTransRefrig = false;
556 : }
557 801 : if (state.dataRefrigCase->NumSimulationCases == 0 && state.dataRefrigCase->NumSimulationWalkIns == 0) {
558 764 : state.dataRefrigCase->HaveCasesOrWalkins = false;
559 : }
560 801 : if (state.dataRefrigCase->NumSimulationRefrigAirChillers == 0) {
561 800 : state.dataRefrigCase->HaveChillers = false;
562 : }
563 :
564 801 : if (state.dataRefrigCase->NumRefrigeratedRacks > 0) {
565 31 : RefrigRack.allocate(state.dataRefrigCase->NumRefrigeratedRacks);
566 31 : state.dataHeatBal->HeatReclaimRefrigeratedRack.allocate(state.dataRefrigCase->NumRefrigeratedRacks);
567 : }
568 801 : if (state.dataRefrigCase->NumRefrigSystems > 0) {
569 15 : System.allocate(state.dataRefrigCase->NumRefrigSystems);
570 15 : state.dataRefrigCase->ShowUnmetEnergyWarning.allocate(state.dataRefrigCase->NumRefrigSystems);
571 15 : state.dataRefrigCase->ShowHiStageUnmetEnergyWarning.allocate(state.dataRefrigCase->NumRefrigSystems);
572 15 : state.dataRefrigCase->ShowUnmetEnergyWarning = true;
573 15 : state.dataRefrigCase->ShowHiStageUnmetEnergyWarning = true;
574 : }
575 801 : if (state.dataRefrigCase->NumTransRefrigSystems > 0) {
576 1 : TransSystem.allocate(state.dataRefrigCase->NumTransRefrigSystems);
577 1 : state.dataRefrigCase->ShowUnmetEnergyWarningTrans.dimension(state.dataRefrigCase->NumTransRefrigSystems, true);
578 : }
579 801 : if (state.dataRefrigCase->NumRefrigChillerSets > 0) {
580 1 : AirChillerSet.allocate(state.dataRefrigCase->NumRefrigChillerSets);
581 : }
582 801 : if (state.dataRefrigCase->NumRefrigCondensers > 0) {
583 15 : state.dataHeatBal->HeatReclaimRefrigCondenser.allocate(state.dataRefrigCase->NumRefrigCondensers);
584 15 : Condenser.allocate(state.dataRefrigCase->NumRefrigCondensers);
585 15 : state.dataRefrigCase->UniqueCondenserNames.reserve(static_cast<unsigned>(state.dataRefrigCase->NumRefrigCondensers));
586 : }
587 801 : if (state.dataRefrigCase->NumSimulationGasCooler > 0) {
588 1 : GasCooler.allocate(state.dataRefrigCase->NumSimulationGasCooler);
589 : }
590 801 : if (state.dataRefrigCase->NumSimulationCases > 0) {
591 37 : CaseRAFraction.allocate(state.dataGlobal->NumOfZones);
592 37 : RefrigCase.allocate(state.dataRefrigCase->NumSimulationCases);
593 : }
594 801 : if (state.dataRefrigCase->NumSimulationWalkIns > 0) {
595 14 : WalkIn.allocate(state.dataRefrigCase->NumSimulationWalkIns);
596 : }
597 801 : if ((state.dataRefrigCase->NumSimulationWalkIns > 0) || (state.dataRefrigCase->NumSimulationCases > 0)) {
598 37 : CaseWIZoneReport.allocate(state.dataGlobal->NumOfZones);
599 : } else {
600 764 : state.dataRefrigCase->UseSysTimeStep = true;
601 : // needed to avoid accessing unallocated caseWIZoneReport on early call to SumZones
602 : }
603 801 : if (state.dataRefrigCase->NumSimulationSecondarySystems > 0) {
604 1 : Secondary.allocate(state.dataRefrigCase->NumSimulationSecondarySystems);
605 1 : state.dataRefrigCase->ShowUnmetSecondEnergyWarning.dimension(state.dataRefrigCase->NumSimulationSecondarySystems, true);
606 : }
607 801 : if (state.dataRefrigCase->NumSimulationRefrigAirChillers > 0) {
608 1 : WarehouseCoil.allocate(state.dataRefrigCase->NumSimulationRefrigAirChillers);
609 1 : CoilSysCredit.allocate(state.dataGlobal->NumOfZones);
610 : }
611 801 : if (state.dataRefrigCase->NumSimulationCompressors > 0) {
612 16 : Compressor.allocate(state.dataRefrigCase->NumSimulationCompressors);
613 : }
614 801 : if (state.dataRefrigCase->NumSimulationSubcoolers > 0) {
615 1 : Subcooler.allocate(state.dataRefrigCase->NumSimulationSubcoolers);
616 : }
617 801 : if (state.dataRefrigCase->NumSimulationCaseAndWalkInLists > 0) {
618 28 : CaseAndWalkInList.allocate(state.dataRefrigCase->NumSimulationCaseAndWalkInLists);
619 : }
620 801 : if (NumCompressorLists > 0) {
621 16 : CompressorLists.allocate(NumCompressorLists);
622 : }
623 801 : if (state.dataRefrigCase->NumSimulationTransferLoadLists > 0) {
624 1 : TransferLoadList.allocate(state.dataRefrigCase->NumSimulationTransferLoadLists);
625 : }
626 :
627 801 : DayValues.allocate(state.dataGlobal->TimeStepsInHour, Constant::iHoursInDay);
628 801 : state.dataRefrigCase->RefrigPresentInZone.dimension(state.dataGlobal->NumOfZones, false);
629 :
630 801 : state.dataInputProcessing->inputProcessor->getObjectDefMaxArgs(state, "Refrigeration:Case", MaxNumArgs, MaxNumAlphasCase, MaxNumNumbersCase);
631 801 : state.dataInputProcessing->inputProcessor->getObjectDefMaxArgs(
632 : state, "Refrigeration:CaseAndWalkInList", MaxNumArgs, MaxNumAlphasCaseAndWalkInList, MaxNumNumbersCaseAndWalkInList);
633 801 : state.dataInputProcessing->inputProcessor->getObjectDefMaxArgs(
634 : state, "Refrigeration:CompressorRack", MaxNumArgs, MaxNumAlphasRack, MaxNumNumbersRack);
635 801 : state.dataInputProcessing->inputProcessor->getObjectDefMaxArgs(state, "Refrigeration:System", MaxNumArgs, MaxNumAlphasSys, MaxNumNumbersSys);
636 801 : state.dataInputProcessing->inputProcessor->getObjectDefMaxArgs(
637 : state, "Refrigeration:TranscriticalSystem", MaxNumArgs, MaxNumAlphasTransSys, MaxNumNumbersTransSys);
638 801 : state.dataInputProcessing->inputProcessor->getObjectDefMaxArgs(
639 : state, "Refrigeration:Condenser:AirCooled", MaxNumArgs, MaxNumAlphasConda, MaxNumNumbersConda);
640 801 : state.dataInputProcessing->inputProcessor->getObjectDefMaxArgs(
641 : state, "Refrigeration:Condenser:EvaporativeCooled", MaxNumArgs, MaxNumAlphasConde, MaxNumNumbersConde);
642 801 : state.dataInputProcessing->inputProcessor->getObjectDefMaxArgs(
643 : state, "Refrigeration:Condenser:WaterCooled", MaxNumArgs, MaxNumAlphasCondw, MaxNumNumbersCondw);
644 801 : state.dataInputProcessing->inputProcessor->getObjectDefMaxArgs(
645 : state, "Refrigeration:GasCooler:AirCooled", MaxNumArgs, MaxNumAlphasGasCoolera, MaxNumNumbersGasCoolera);
646 801 : state.dataInputProcessing->inputProcessor->getObjectDefMaxArgs(
647 : state, "Refrigeration:Compressor", MaxNumArgs, MaxNumAlphasComp, MaxNumNumbersComp);
648 801 : state.dataInputProcessing->inputProcessor->getObjectDefMaxArgs(
649 : state, "Refrigeration:CompressorList", MaxNumArgs, MaxNumAlphasCompressorList, MaxNumNumbersCompressorList);
650 801 : state.dataInputProcessing->inputProcessor->getObjectDefMaxArgs(
651 : state, "Refrigeration:WalkIn", MaxNumArgs, MaxNumAlphasWalkIn, MaxNumNumbersWalkIn);
652 801 : state.dataInputProcessing->inputProcessor->getObjectDefMaxArgs(
653 : state, "Refrigeration:SecondarySystem", MaxNumArgs, MaxNumAlphasSecond, MaxNumNumbersSecond);
654 801 : state.dataInputProcessing->inputProcessor->getObjectDefMaxArgs(
655 : state, "ZoneHVAC:RefrigerationChillerSet", MaxNumArgs, MaxNumAlphasChillerSet, MaxNumNumbersChillerSet);
656 801 : state.dataInputProcessing->inputProcessor->getObjectDefMaxArgs(
657 : state, "Refrigeration:AirChiller", MaxNumArgs, MaxNumAlphasAirChiller, MaxNumNumbersAirChiller);
658 :
659 801 : MaxNumAlphasAll = max(MaxNumAlphasCase,
660 : MaxNumAlphasCaseAndWalkInList,
661 : MaxNumAlphasRack,
662 : MaxNumAlphasSys,
663 : MaxNumAlphasTransSys,
664 : MaxNumAlphasConda,
665 : MaxNumAlphasConde,
666 : MaxNumAlphasCondw,
667 : MaxNumAlphasGasCoolera,
668 : MaxNumAlphasComp,
669 : MaxNumAlphasCompressorList,
670 : MaxNumAlphasSecond,
671 : MaxNumAlphasWalkIn,
672 : MaxNumAlphasChillerSet,
673 : MaxNumAlphasAirChiller);
674 801 : MaxNumNumbersAll = max(MaxNumNumbersCase,
675 : MaxNumNumbersCaseAndWalkInList,
676 : MaxNumNumbersRack,
677 : MaxNumNumbersSys,
678 : MaxNumNumbersTransSys,
679 : MaxNumNumbersConda,
680 : MaxNumNumbersConde,
681 : MaxNumNumbersCondw,
682 : MaxNumNumbersGasCoolera,
683 : MaxNumNumbersComp,
684 : MaxNumNumbersCompressorList,
685 : MaxNumNumbersSecond,
686 : MaxNumNumbersWalkIn,
687 : MaxNumNumbersChillerSet,
688 : MaxNumNumbersAirChiller);
689 :
690 801 : Alphas.allocate(MaxNumAlphasAll);
691 801 : Numbers.dimension(MaxNumNumbersAll, 0.0);
692 801 : cAlphaFieldNames.allocate(MaxNumAlphasAll);
693 801 : cNumericFieldNames.allocate(MaxNumNumbersAll);
694 801 : lAlphaBlanks.dimension(MaxNumAlphasAll, true);
695 801 : lNumericBlanks.dimension(MaxNumNumbersAll, true);
696 : // bbb stovall note for future - for all curve entries, see if need fail on type or if can allow table input
697 801 : if (state.dataRefrigCase->NumSimulationCases > 0) {
698 37 : CurrentModuleObject = "Refrigeration:Case";
699 227 : for (int CaseNum = 1; CaseNum <= state.dataRefrigCase->NumSimulationCases; ++CaseNum) {
700 190 : state.dataInputProcessing->inputProcessor->getObjectItem(state,
701 : CurrentModuleObject,
702 : CaseNum,
703 : Alphas,
704 : NumAlphas,
705 : Numbers,
706 : NumNumbers,
707 : IOStatus,
708 : lNumericBlanks,
709 : lAlphaBlanks,
710 : cAlphaFieldNames,
711 : cNumericFieldNames);
712 :
713 190 : ErrorObjectHeader eoh{routineName, CurrentModuleObject, Alphas(1)};
714 :
715 190 : ++NumDisplayCases;
716 :
717 190 : AlphaNum = 1;
718 190 : Util::IsNameEmpty(state, Alphas(1), CurrentModuleObject, ErrorsFound);
719 190 : RefrigCase(CaseNum).Name = Alphas(AlphaNum);
720 :
721 190 : AlphaNum = 2;
722 190 : if (lAlphaBlanks(AlphaNum)) {
723 0 : RefrigCase(CaseNum).availSched = Sched::GetScheduleAlwaysOn(state);
724 190 : } else if ((RefrigCase(CaseNum).availSched = Sched::GetSchedule(state, Alphas(AlphaNum))) == nullptr) {
725 0 : ShowSevereItemNotFound(state, eoh, cAlphaFieldNames(AlphaNum), Alphas(AlphaNum));
726 0 : ErrorsFound = true;
727 190 : } else if (!RefrigCase(CaseNum).availSched->checkMinMaxVals(state, Clusive::In, 0.0, Clusive::In, 1.0)) {
728 0 : Sched::ShowSevereBadMinMax(state, eoh, cAlphaFieldNames(AlphaNum), Alphas(AlphaNum), Clusive::In, 0.0, Clusive::In, 1.0);
729 0 : ErrorsFound = true;
730 : }
731 :
732 : // Get the Zone node number from the zone name entered by the user
733 190 : RefrigCase(CaseNum).ZoneName = Alphas(3);
734 190 : RefrigCase(CaseNum).ActualZoneNum = Util::FindItemInList(Alphas(3), state.dataHeatBal->Zone);
735 :
736 190 : if (RefrigCase(CaseNum).ActualZoneNum == 0) {
737 0 : ShowSevereError(state,
738 0 : format("{}{}=\"{}\", invalid {} not valid: {}",
739 : RoutineName,
740 : CurrentModuleObject,
741 0 : RefrigCase(CaseNum).Name,
742 : cAlphaFieldNames(3),
743 : Alphas(3)));
744 0 : ErrorsFound = true;
745 : } else {
746 190 : state.dataRefrigCase->RefrigPresentInZone(RefrigCase(CaseNum).ActualZoneNum) = true;
747 : }
748 :
749 190 : RefrigCase(CaseNum).ZoneNodeNum = DataZoneEquipment::GetSystemNodeNumberForZone(state, RefrigCase(CaseNum).ActualZoneNum);
750 :
751 190 : RefrigCase(CaseNum).RatedAmbientTemp = Numbers(1);
752 190 : if (Numbers(1) <= 0.0) {
753 0 : ShowSevereError(state,
754 0 : format("{}{}=\"{}\", {} must be greater than 0 C",
755 : RoutineName,
756 : CurrentModuleObject,
757 0 : RefrigCase(CaseNum).Name,
758 : cNumericFieldNames(1)));
759 0 : ErrorsFound = true;
760 : }
761 :
762 190 : RefrigCase(CaseNum).RatedAmbientRH = Numbers(2);
763 190 : if (Numbers(2) <= 0.0 || Numbers(2) >= 100.0) {
764 0 : ShowSevereError(state,
765 0 : format("{}{}=\"{}\", {} must be greater than 0% and less than 100%",
766 : RoutineName,
767 : CurrentModuleObject,
768 0 : RefrigCase(CaseNum).Name,
769 : cNumericFieldNames(2)));
770 0 : ErrorsFound = true;
771 : }
772 380 : RefrigCase(CaseNum).RatedAmbientDewPoint = Psychrometrics::PsyTdpFnWPb(
773 : state,
774 190 : Psychrometrics::PsyWFnTdbRhPb(
775 190 : state, RefrigCase(CaseNum).RatedAmbientTemp, (RefrigCase(CaseNum).RatedAmbientRH / 100.0), state.dataEnvrn->StdBaroPress),
776 190 : state.dataEnvrn->StdBaroPress);
777 :
778 190 : RefrigCase(CaseNum).RateTotCapPerLength = Numbers(3);
779 190 : if (Numbers(3) <= 0.0) {
780 0 : ShowSevereError(state,
781 0 : format("{}{}=\"{}\", {} must be greater than 0 W/m",
782 : RoutineName,
783 : CurrentModuleObject,
784 0 : RefrigCase(CaseNum).Name,
785 : cNumericFieldNames(3)));
786 0 : ErrorsFound = true;
787 : }
788 :
789 190 : RefrigCase(CaseNum).RatedLHR = Numbers(4);
790 190 : if (Numbers(4) < 0.0 || Numbers(4) > 1.0) {
791 0 : ShowSevereError(
792 : state,
793 0 : format(
794 0 : "{}{}=\"{}\", {} must be >= 0 and <= 1", RoutineName, CurrentModuleObject, RefrigCase(CaseNum).Name, cNumericFieldNames(4)));
795 0 : ErrorsFound = true;
796 : }
797 :
798 190 : RefrigCase(CaseNum).RatedRTF = Numbers(5);
799 190 : if (Numbers(5) <= 0.0 || Numbers(5) > 1.0) {
800 0 : ShowSevereError(state,
801 0 : format("{}{}=\"{}\", {} must be > 0 and <= to 1",
802 : RoutineName,
803 : CurrentModuleObject,
804 0 : RefrigCase(CaseNum).Name,
805 : cNumericFieldNames(5)));
806 0 : ErrorsFound = true;
807 : }
808 :
809 190 : RefrigCase(CaseNum).Length = Numbers(6);
810 190 : if (Numbers(6) <= 0.0) {
811 0 : ShowSevereError(state,
812 0 : format("{}{}=\"{}\", {} must be greater than 0 m",
813 : RoutineName,
814 : CurrentModuleObject,
815 0 : RefrigCase(CaseNum).Name,
816 : cNumericFieldNames(6)));
817 0 : ErrorsFound = true;
818 : }
819 :
820 190 : RefrigCase(CaseNum).Temperature = Numbers(7);
821 190 : if (RefrigCase(CaseNum).Temperature >= RefrigCase(CaseNum).RatedAmbientTemp) {
822 0 : ShowSevereError(state,
823 0 : format("{}{}=\"{}\", {} must be below {}",
824 : RoutineName,
825 : CurrentModuleObject,
826 0 : RefrigCase(CaseNum).Name,
827 : cNumericFieldNames(7),
828 : cNumericFieldNames(1)));
829 0 : ErrorsFound = true;
830 : }
831 :
832 190 : RefrigCase(CaseNum).LatentEnergyCurveType = static_cast<EnergyEqnForm>(getEnumValue(energyEqnFormNamesUC, Alphas(4)));
833 190 : if (RefrigCase(CaseNum).LatentEnergyCurveType == EnergyEqnForm::Invalid) {
834 0 : ShowSevereInvalidKey(state, eoh, cAlphaFieldNames(4), Alphas(4));
835 0 : ErrorsFound = true;
836 : }
837 :
838 190 : RefrigCase(CaseNum).LatCapCurvePtr = Curve::GetCurveIndex(state, Alphas(5)); // convert curve name to number
839 190 : if (RefrigCase(CaseNum).LatCapCurvePtr == 0) {
840 0 : ShowSevereItemNotFound(state, eoh, cAlphaFieldNames(5), Alphas(5));
841 0 : ErrorsFound = true;
842 : }
843 :
844 570 : ErrorsFound |= Curve::CheckCurveDims(state,
845 190 : RefrigCase(CaseNum).LatCapCurvePtr, // Curve index
846 : {1}, // Valid dimensions
847 : RoutineName, // Routine name
848 : CurrentModuleObject, // Object Type
849 190 : RefrigCase(CaseNum).Name, // Object Name
850 190 : cAlphaFieldNames(5)); // Field Name
851 :
852 190 : NumNum = 8;
853 190 : if (!lNumericBlanks(NumNum)) {
854 190 : RefrigCase(CaseNum).STDFanPower = Numbers(NumNum);
855 190 : if (Numbers(NumNum) < 0.0) {
856 0 : ShowSevereError(state,
857 0 : format("{}{}=\"{}\", {} must be greater than or equal to 0 W/m",
858 : RoutineName,
859 : CurrentModuleObject,
860 0 : RefrigCase(CaseNum).Name,
861 : cNumericFieldNames(NumNum)));
862 0 : ErrorsFound = true;
863 : }
864 : } else { // blank use default of 75 W/m
865 0 : RefrigCase(CaseNum).STDFanPower = 75.0;
866 : } // blank input
867 :
868 190 : NumNum = 9;
869 190 : if (!lNumericBlanks(NumNum)) {
870 190 : RefrigCase(CaseNum).OperatingFanPower = Numbers(NumNum);
871 190 : if (Numbers(NumNum) < 0.0) {
872 0 : ShowSevereError(state,
873 0 : format("{}{}=\"{}\", {} must be greater than or equal to 0 W/m",
874 : RoutineName,
875 : CurrentModuleObject,
876 0 : RefrigCase(CaseNum).Name,
877 : cNumericFieldNames(NumNum)));
878 0 : ErrorsFound = true;
879 : }
880 : } else { // if blank set = to std fan power
881 0 : RefrigCase(CaseNum).OperatingFanPower = RefrigCase(CaseNum).STDFanPower;
882 : } // if blank
883 :
884 190 : NumNum = 10;
885 190 : if (!lNumericBlanks(NumNum)) {
886 190 : RefrigCase(CaseNum).RatedLightingPower = Numbers(NumNum);
887 190 : if (Numbers(NumNum) < 0.0) {
888 0 : ShowSevereError(state,
889 0 : format("{}{}=\"{}\", {} must be greater than or equal to 0 W/m",
890 : RoutineName,
891 : CurrentModuleObject,
892 0 : RefrigCase(CaseNum).Name,
893 : cNumericFieldNames(NumNum)));
894 0 : ErrorsFound = true;
895 : }
896 : } else { // blank input - use default of 90 W/m
897 0 : RefrigCase(CaseNum).RatedLightingPower = 90.0;
898 : } // blank input
899 :
900 190 : NumNum = 11;
901 190 : if (!lNumericBlanks(NumNum)) {
902 12 : RefrigCase(CaseNum).LightingPower = Numbers(NumNum);
903 12 : if (Numbers(NumNum) < 0.0) {
904 0 : ShowSevereError(state,
905 0 : format("{}{}=\"{}\", {} must be greater than or equal to 0 W/m",
906 : RoutineName,
907 : CurrentModuleObject,
908 0 : RefrigCase(CaseNum).Name,
909 : cNumericFieldNames(NumNum)));
910 0 : ErrorsFound = true;
911 : }
912 : } else { // blank input so set lighting power equal to rated/std lighting power
913 178 : RefrigCase(CaseNum).LightingPower = RefrigCase(CaseNum).RatedLightingPower;
914 : } // blank input
915 :
916 190 : if (lAlphaBlanks(6)) {
917 0 : RefrigCase(CaseNum).lightingSched = Sched::GetScheduleAlwaysOn(state); // Not an availability schedule, but defaults to constant-1.0
918 190 : } else if ((RefrigCase(CaseNum).lightingSched = Sched::GetSchedule(state, Alphas(6))) == nullptr) {
919 0 : ShowSevereItemNotFound(state, eoh, cAlphaFieldNames(6), Alphas(6));
920 0 : ErrorsFound = true;
921 190 : } else if (!RefrigCase(CaseNum).lightingSched->checkMinMaxVals(state, Clusive::In, 0.0, Clusive::In, 1.0)) {
922 0 : Sched::ShowSevereBadMinMax(state, eoh, cAlphaFieldNames(6), Alphas(6), Clusive::In, 0.0, Clusive::In, 1.0);
923 0 : ErrorsFound = true;
924 : }
925 :
926 190 : NumNum = 12;
927 190 : RefrigCase(CaseNum).LightingFractionToCase = 1.0; // default value
928 190 : if (!lNumericBlanks(NumNum)) {
929 190 : RefrigCase(CaseNum).LightingFractionToCase = Numbers(NumNum);
930 : } // blank input lighting fraction to case
931 : // check lighting fraction to case input
932 190 : if (RefrigCase(CaseNum).LightingFractionToCase < 0.0 || RefrigCase(CaseNum).LightingFractionToCase > 1.0) {
933 0 : ShowSevereError(state,
934 0 : format("{}{}=\"{}\", {} has a value outside the valid range",
935 : RoutineName,
936 : CurrentModuleObject,
937 0 : RefrigCase(CaseNum).Name,
938 : cNumericFieldNames(NumNum)));
939 0 : ShowContinueError(state, " Minimum should be >= 0.0 and Maximum should be <= 1.0");
940 0 : ErrorsFound = true;
941 : }
942 :
943 190 : NumNum = 13;
944 190 : RefrigCase(CaseNum).AntiSweatPower = Numbers(NumNum);
945 190 : if (Numbers(NumNum) < 0.0) {
946 0 : ShowSevereError(state,
947 0 : format("{}{}=\"{}\", {} must be greater than or equal to 0 W/m",
948 : RoutineName,
949 : CurrentModuleObject,
950 0 : RefrigCase(CaseNum).Name,
951 : cNumericFieldNames(NumNum)));
952 0 : ErrorsFound = true;
953 : }
954 :
955 190 : NumNum = 14;
956 190 : RefrigCase(CaseNum).MinimumASPower = Numbers(NumNum);
957 190 : if (Numbers(NumNum) < 0.0) {
958 0 : ShowSevereError(state,
959 0 : format("{}{}=\"{}\", {} must be greater than or equal to 0 W/m",
960 : RoutineName,
961 : CurrentModuleObject,
962 0 : RefrigCase(CaseNum).Name,
963 : cNumericFieldNames(NumNum)));
964 0 : ErrorsFound = true;
965 : }
966 :
967 190 : RefrigCase(CaseNum).AntiSweatControlType = static_cast<ASHtrCtrlType>(getEnumValue(asHtrCtrlTypeNamesUC, Alphas(7)));
968 190 : if (RefrigCase(CaseNum).AntiSweatControlType == ASHtrCtrlType::Invalid) {
969 0 : ShowSevereInvalidKey(state, eoh, cAlphaFieldNames(7), Alphas(7));
970 0 : ErrorsFound = true;
971 190 : } else if (RefrigCase(CaseNum).AntiSweatControlType == ASHtrCtrlType::None) {
972 111 : RefrigCase(CaseNum).AntiSweatPower = 0.0;
973 : }
974 :
975 : // Assure that case temperature is below the rated dew point when anti-sweat heater control type is dew point method
976 190 : if (RefrigCase(CaseNum).Temperature >= RefrigCase(CaseNum).RatedAmbientDewPoint &&
977 0 : RefrigCase(CaseNum).AntiSweatControlType == ASHtrCtrlType::DewPoint) {
978 0 : ShowSevereError(state,
979 0 : format("{}{}=\"{}\", {} must be below the Rated Ambient Dew Point when {} is Dew Point Method",
980 : RoutineName,
981 : CurrentModuleObject,
982 0 : RefrigCase(CaseNum).Name,
983 : cNumericFieldNames(7),
984 : cAlphaFieldNames(7)));
985 0 : ErrorsFound = true;
986 : }
987 :
988 190 : NumNum = 15;
989 : // negative values for minimum humidity are allowed
990 190 : RefrigCase(CaseNum).HumAtZeroAS = Numbers(NumNum);
991 :
992 : // check minimum humidity when linear AS control type is used
993 190 : if (RefrigCase(CaseNum).HumAtZeroAS >= RefrigCase(CaseNum).RatedAmbientRH &&
994 0 : RefrigCase(CaseNum).AntiSweatControlType == ASHtrCtrlType::Linear) {
995 0 : ShowSevereError(state,
996 0 : format("{}{}=\"{}\", {} must be less than {}",
997 : RoutineName,
998 : CurrentModuleObject,
999 0 : RefrigCase(CaseNum).Name,
1000 : cNumericFieldNames(NumNum),
1001 : cNumericFieldNames(2)));
1002 0 : ShowContinueError(state, format(" for Linear {}.", cAlphaFieldNames(7)));
1003 0 : ErrorsFound = true;
1004 : }
1005 :
1006 190 : NumNum = 16;
1007 190 : RefrigCase(CaseNum).Height = Numbers(NumNum);
1008 190 : if (Numbers(NumNum) < 0.0) {
1009 0 : ShowSevereError(state,
1010 0 : format("{}{}=\"{}\", {} must be greater than or equal to 0 m",
1011 : RoutineName,
1012 : CurrentModuleObject,
1013 0 : RefrigCase(CaseNum).Name,
1014 : cNumericFieldNames(NumNum)));
1015 0 : ErrorsFound = true;
1016 : }
1017 :
1018 190 : if (RefrigCase(CaseNum).Height <= 0.0 && RefrigCase(CaseNum).AntiSweatControlType == ASHtrCtrlType::HeatBalance) {
1019 0 : ShowSevereError(state,
1020 0 : format("{}{}=\"{}\", {} must be greater than 0 when {} is Heat Balance Method.",
1021 : RoutineName,
1022 : CurrentModuleObject,
1023 0 : RefrigCase(CaseNum).Name,
1024 : cNumericFieldNames(NumNum),
1025 : cAlphaFieldNames(7)));
1026 0 : ShowContinueError(state, format("..given {} was: {:.3R}", cNumericFieldNames(NumNum), RefrigCase(CaseNum).Height));
1027 0 : ErrorsFound = true;
1028 : }
1029 :
1030 : // initialize case resistance for anti-sweat heater control type = Heat Balance Method
1031 190 : if (RefrigCase(CaseNum).AntiSweatControlType == ASHtrCtrlType::HeatBalance) {
1032 41 : Real64 Rcase(0.0); // Case thermal resistance used with anti-sweat heater control
1033 41 : Real64 RcaseDenom(0.0); // Denominator of case thermal resistance calculation for anti-sweat
1034 :
1035 41 : if (RefrigCase(CaseNum).Height == 0.0) {
1036 0 : Rcase = 0.0;
1037 : } else {
1038 41 : RcaseDenom = ((RefrigCase(CaseNum).AntiSweatPower / RefrigCase(CaseNum).Height) -
1039 41 : (RefrigCase(CaseNum).RatedAmbientDewPoint - RefrigCase(CaseNum).RatedAmbientTemp) / Rair);
1040 41 : Rcase = (RefrigCase(CaseNum).RatedAmbientDewPoint - RefrigCase(CaseNum).Temperature) / RcaseDenom;
1041 : }
1042 41 : RefrigCase(CaseNum).Rcase = max(0.0, Rcase);
1043 41 : if (RefrigCase(CaseNum).Rcase == 0.0) {
1044 0 : ShowWarningError(state,
1045 0 : format("{}=\"{}\" A case thermal resistance of 0 was calculated for anti-sweat heater performance using the",
1046 : CurrentModuleObject,
1047 0 : RefrigCase(CaseNum).Name));
1048 0 : ShowContinueError(state,
1049 0 : format(" Heat Balance Method control type. Anti-sweat heater performance cannot be calculated and {} will be "
1050 : "set to None and simulation continues.",
1051 : cAlphaFieldNames(7)));
1052 0 : ShowContinueError(state, " See Engineering Documentation for anti-sweat heater control of refrigerated cases.");
1053 : }
1054 : }
1055 :
1056 190 : NumNum = 17;
1057 190 : RefrigCase(CaseNum).ASHeaterFractionToCase = Numbers(NumNum);
1058 190 : if (Numbers(NumNum) < 0.0 || Numbers(NumNum) > 1.0) {
1059 0 : ShowSevereError(state,
1060 0 : format("{}{}=\"{}\", {} must be >= 0 and <= 1",
1061 : RoutineName,
1062 : CurrentModuleObject,
1063 0 : RefrigCase(CaseNum).Name,
1064 : cNumericFieldNames(NumNum)));
1065 0 : ErrorsFound = true;
1066 : }
1067 :
1068 : // Multiple strings mapping to the same enum is not good
1069 190 : if (Alphas(8) == "HOTGAS") {
1070 18 : Alphas(8) = "HOTFLUID";
1071 172 : } else if (Alphas(8) == "HOTGASWITHTEMPERATURETERMINATION") {
1072 40 : Alphas(8) = "HOTFLUIDWITHTEMPERATURETERMINATION";
1073 : }
1074 :
1075 190 : RefrigCase(CaseNum).defrostType = static_cast<RefCaseDefrostType>(getEnumValue(refCaseDefrostTypeNamesUC, Alphas(8)));
1076 190 : if (RefrigCase(CaseNum).defrostType == RefCaseDefrostType::Invalid) {
1077 0 : ShowWarningInvalidKey(state, eoh, cAlphaFieldNames(8), Alphas(8), "None");
1078 0 : RefrigCase(CaseNum).defrostType = RefCaseDefrostType::None;
1079 : }
1080 :
1081 190 : RefCaseDefrostType DefType = RefrigCase(CaseNum).defrostType;
1082 190 : NumNum = 18;
1083 190 : if (!lNumericBlanks(NumNum)) {
1084 190 : RefrigCase(CaseNum).DefrostPower = Numbers(NumNum);
1085 190 : if (Numbers(NumNum) < 0.0) {
1086 0 : ShowSevereError(state,
1087 0 : format("{}{}=\"{}\", {} must be greater than or equal to 0 W/m",
1088 : RoutineName,
1089 : CurrentModuleObject,
1090 0 : RefrigCase(CaseNum).Name,
1091 : cNumericFieldNames(NumNum)));
1092 0 : ErrorsFound = true;
1093 : }
1094 : // disregard defrost power for Off-Cycle or None defrost types
1095 190 : if ((DefType == RefCaseDefrostType::OffCycle || DefType == RefCaseDefrostType::None) && (RefrigCase(CaseNum).DefrostPower > 0.0)) {
1096 0 : RefrigCase(CaseNum).DefrostPower = 0.0;
1097 0 : ShowWarningError(state,
1098 0 : format("{}=\"{}\", {} for {} None or Off-Cycle will be set to 0 and simulation continues.",
1099 : CurrentModuleObject,
1100 0 : RefrigCase(CaseNum).Name,
1101 : cNumericFieldNames(NumNum),
1102 : cAlphaFieldNames(8)));
1103 : }
1104 : } else {
1105 0 : RefrigCase(CaseNum).DefrostPower = 0.0;
1106 : }
1107 :
1108 : // defrost power needed to calculate heat gain to case even if not needed for electric consumption
1109 172 : if ((DefType == RefCaseDefrostType::HotFluid || DefType == RefCaseDefrostType::HotFluidTerm || DefType == RefCaseDefrostType::Electric ||
1110 380 : DefType == RefCaseDefrostType::ElectricTerm) &&
1111 104 : RefrigCase(CaseNum).DefrostPower <= 0.0) {
1112 0 : ShowSevereError(state,
1113 0 : format("{}{}=\"{}\", {} must be greater than 0 W/m for {} {}",
1114 : RoutineName,
1115 : CurrentModuleObject,
1116 0 : RefrigCase(CaseNum).Name,
1117 : cNumericFieldNames(NumNum),
1118 : cAlphaFieldNames(8),
1119 : Alphas(8)));
1120 0 : ErrorsFound = true;
1121 : }
1122 :
1123 190 : if (RefrigCase(CaseNum).defrostType == RefCaseDefrostType::None) {
1124 155 : } else if (lAlphaBlanks(9)) {
1125 0 : ShowSevereEmptyField(state, eoh, cAlphaFieldNames(9));
1126 0 : ErrorsFound = true;
1127 155 : } else if ((RefrigCase(CaseNum).defrostSched = Sched::GetSchedule(state, Alphas(9))) == nullptr) {
1128 0 : ShowSevereItemNotFound(state, eoh, cAlphaFieldNames(9), Alphas(9));
1129 0 : ErrorsFound = true;
1130 155 : } else if (!RefrigCase(CaseNum).defrostSched->checkMinMaxVals(state, Clusive::In, 0.0, Clusive::In, 1.0)) {
1131 0 : Sched::ShowSevereBadMinMax(state, eoh, cAlphaFieldNames(9), Alphas(9), Clusive::In, 0.0, Clusive::In, 1.0);
1132 0 : ErrorsFound = true;
1133 : }
1134 :
1135 : // Note that next section counting number cycles and setting maxkgfrost not used now, but may be in the future.
1136 : // count the number of defrost cycles
1137 :
1138 : // Flag for counting defrost cycles
1139 190 : int NumDefCycles = 0;
1140 :
1141 190 : if (RefrigCase(CaseNum).defrostSched != nullptr) {
1142 155 : bool StartCycle = false;
1143 155 : std::vector<Real64> const &dayVals = RefrigCase(CaseNum).defrostSched->getDayVals(state, 1);
1144 21203 : for (int i = 0; i < Constant::iHoursInDay * state.dataGlobal->TimeStepsInHour; ++i) {
1145 21048 : if (dayVals[i] == 0.0) {
1146 20478 : StartCycle = false;
1147 570 : } else if (!StartCycle) {
1148 286 : ++NumDefCycles;
1149 286 : StartCycle = true;
1150 : }
1151 : }
1152 : }
1153 :
1154 190 : if (NumDefCycles > 0) {
1155 : // calculate maximum frost formation based on defrost schedule, heat of vaporization+fusion for water = 2833.0 kJ/kg
1156 143 : RefrigCase(CaseNum).MaxKgFrost =
1157 143 : (RefrigCase(CaseNum).RateTotCapPerLength * RefrigCase(CaseNum).RatedLHR * RefrigCase(CaseNum).RatedRTF * Constant::rSecsInHour *
1158 143 : Constant::rHoursInDay / 1000.0 / 2833.0) / // Parenthesize!!!
1159 : (NumDefCycles);
1160 : } else {
1161 47 : RefrigCase(CaseNum).MaxKgFrost = 9999999.9;
1162 : }
1163 :
1164 : // some defrost types do not use drip-down schedules, use same defrost schedule pointer in that case
1165 190 : if (lAlphaBlanks(10)) {
1166 33 : RefrigCase(CaseNum).defrostDripDownSched = RefrigCase(CaseNum).defrostSched;
1167 157 : } else if ((RefrigCase(CaseNum).defrostDripDownSched = Sched::GetSchedule(state, Alphas(10))) == nullptr) {
1168 0 : ShowSevereItemNotFound(state, eoh, cAlphaFieldNames(10), Alphas(10));
1169 0 : ErrorsFound = true;
1170 157 : } else if (!RefrigCase(CaseNum).defrostDripDownSched->checkMinMaxVals(state, Clusive::In, 0.0, Clusive::In, 1.0)) {
1171 0 : Sched::ShowSevereBadMinMax(state, eoh, cAlphaFieldNames(10), Alphas(10), Clusive::In, 0.0, Clusive::In, 1.0);
1172 0 : ErrorsFound = true;
1173 : }
1174 :
1175 190 : RefrigCase(CaseNum).DefrostEnergyCurveType = static_cast<EnergyEqnForm>(getEnumValue(energyEqnFormNamesUC, Alphas(11)));
1176 190 : if (RefrigCase(CaseNum).DefrostEnergyCurveType == EnergyEqnForm::Invalid) {
1177 0 : ShowSevereInvalidKey(state, eoh, cAlphaFieldNames(11), Alphas(11));
1178 0 : ErrorsFound = true;
1179 : }
1180 :
1181 190 : RefrigCase(CaseNum).DefCapCurvePtr = Curve::GetCurveIndex(state, Alphas(12)); // convert curve name to number
1182 190 : if ((RefrigCase(CaseNum).defrostType == RefCaseDefrostType::ElectricTerm ||
1183 248 : RefrigCase(CaseNum).defrostType == RefCaseDefrostType::HotFluidTerm) &&
1184 58 : (RefrigCase(CaseNum).DefCapCurvePtr == 0)) {
1185 0 : ShowSevereItemNotFound(state, eoh, cAlphaFieldNames(12), Alphas(12));
1186 0 : ErrorsFound = true;
1187 : }
1188 :
1189 190 : if (RefrigCase(CaseNum).DefCapCurvePtr > 0) {
1190 232 : ErrorsFound |= Curve::CheckCurveDims(state,
1191 58 : RefrigCase(CaseNum).DefCapCurvePtr, // Curve index
1192 : {1}, // Valid dimensions
1193 : RoutineName, // Routine name
1194 : CurrentModuleObject, // Object Type
1195 58 : RefrigCase(CaseNum).Name, // Object Name
1196 58 : cAlphaFieldNames(12)); // Field Name
1197 : }
1198 :
1199 : // warn user if defrost energy curve is entered that it is only used for temperature termination types
1200 190 : if (RefrigCase(CaseNum).DefCapCurvePtr > 0) {
1201 98 : if (RefrigCase(CaseNum).defrostType != RefCaseDefrostType::ElectricTerm &&
1202 40 : RefrigCase(CaseNum).defrostType != RefCaseDefrostType::HotFluidTerm) {
1203 0 : ShowWarningError(state,
1204 0 : format("{}=\"{}\", invalid {} is only applicable to Defrost Temperature Termination types.",
1205 : CurrentModuleObject,
1206 0 : RefrigCase(CaseNum).Name,
1207 : cAlphaFieldNames(12)));
1208 0 : ShowContinueError(state, format("{} will be disregarded and simulation continues.", cAlphaFieldNames(12)));
1209 : }
1210 : }
1211 :
1212 190 : NumNum = 19;
1213 190 : RefrigCase(CaseNum).RAFrac = Numbers(NumNum);
1214 190 : if (Numbers(NumNum) < 0.0 || Numbers(NumNum) > 1.0) {
1215 0 : ShowSevereError(state,
1216 0 : format("{}{}=\"{}\", {} must be >= 0 or <= 1 ",
1217 : RoutineName,
1218 : CurrentModuleObject,
1219 0 : RefrigCase(CaseNum).Name,
1220 : cNumericFieldNames(NumNum)));
1221 0 : ErrorsFound = true;
1222 : }
1223 :
1224 : // Set return air node number
1225 190 : RefrigCase(CaseNum).ZoneRANode = 0;
1226 190 : std::string retNodeName;
1227 190 : if (!lAlphaBlanks(15)) {
1228 0 : retNodeName = Alphas(15);
1229 : }
1230 190 : if (RefrigCase(CaseNum).RAFrac > 0.0) {
1231 122 : std::string callDescription = CurrentModuleObject + "=" + RefrigCase(CaseNum).Name;
1232 244 : RefrigCase(CaseNum).ZoneRANode =
1233 122 : DataZoneEquipment::GetReturnAirNodeForZone(state, RefrigCase(CaseNum).ActualZoneNum, retNodeName, callDescription);
1234 122 : }
1235 :
1236 190 : if (RefrigCase(CaseNum).ActualZoneNum >= 0) {
1237 190 : if (RefrigCase(CaseNum).ZoneNodeNum == 0) {
1238 0 : ShowSevereError(state,
1239 0 : format("{}{}=\"{}\", System Node Number not found for {} = {}",
1240 : RoutineName,
1241 : CurrentModuleObject,
1242 0 : RefrigCase(CaseNum).Name,
1243 : cAlphaFieldNames(3),
1244 : Alphas(3)));
1245 0 : ShowContinueError(state,
1246 : "..Refrigerated cases must reference a controlled Zone (appear in a ZoneHVAC:EquipmentConnections object).");
1247 0 : ErrorsFound = true;
1248 : }
1249 190 : if ((RefrigCase(CaseNum).RAFrac > 0.0) && (RefrigCase(CaseNum).ZoneRANode == 0)) {
1250 0 : ShowSevereError(state,
1251 0 : format("{}{}=\"{}\", Under Case HVAC Return Air Node number not found for {} = {}",
1252 : RoutineName,
1253 : CurrentModuleObject,
1254 0 : RefrigCase(CaseNum).Name,
1255 : cAlphaFieldNames(3),
1256 : Alphas(3)));
1257 0 : ShowContinueError(state,
1258 : "..Refrigerated cases must reference a controlled Zone (appear in a ZoneHVAC:EquipmentConnections object) "
1259 : "with at least one return air node.");
1260 0 : ErrorsFound = true;
1261 : }
1262 : }
1263 :
1264 : // set flag in Zone Data if RAFrac > 0
1265 190 : if (RefrigCase(CaseNum).RAFrac > 0.0) {
1266 122 : state.dataHeatBal->Zone(RefrigCase(CaseNum).ActualZoneNum).RefrigCaseRA = true;
1267 : }
1268 :
1269 : // Make sure RA node exists for display cases with under case HVAC returns
1270 190 : if (RefrigCase(CaseNum).ZoneRANode == 0 && RefrigCase(CaseNum).RAFrac > 0.0) {
1271 0 : ShowSevereError(state,
1272 0 : format("{}{}=\"{}\", {} not applicable to zones without return air systems.",
1273 : RoutineName,
1274 : CurrentModuleObject,
1275 0 : RefrigCase(CaseNum).Name,
1276 : cNumericFieldNames(19)));
1277 0 : ErrorsFound = true;
1278 : }
1279 :
1280 190 : if (RefrigCase(CaseNum).ActualZoneNum != 0) {
1281 190 : CaseRAFraction(RefrigCase(CaseNum).ActualZoneNum).TotalCaseRAFraction += RefrigCase(CaseNum).RAFrac;
1282 190 : CaseRAFraction(RefrigCase(CaseNum).ActualZoneNum).ZoneName = RefrigCase(CaseNum).ZoneName;
1283 : }
1284 :
1285 190 : if (lAlphaBlanks(13)) {
1286 190 : } else if ((RefrigCase(CaseNum).stockingSched = Sched::GetSchedule(state, Alphas(13))) == nullptr) {
1287 0 : ShowSevereItemNotFound(state, eoh, cAlphaFieldNames(13), Alphas(13));
1288 0 : ErrorsFound = true;
1289 : }
1290 :
1291 : // calculate sensible case load at design conditions
1292 : // Case sensible capacity used for error messages
1293 190 : Real64 DesignSensibleCap = RefrigCase(CaseNum).RateTotCapPerLength * (1.0 - RefrigCase(CaseNum).RatedLHR) * RefrigCase(CaseNum).RatedRTF *
1294 190 : RefrigCase(CaseNum).Length;
1295 :
1296 : // calculate case heat gain = lights + fans + anti-sweat
1297 : Real64 CaseHeatGain =
1298 190 : ((RefrigCase(CaseNum).RatedLightingPower * RefrigCase(CaseNum).LightingFractionToCase) +
1299 190 : (RefrigCase(CaseNum).AntiSweatPower * RefrigCase(CaseNum).ASHeaterFractionToCase) + RefrigCase(CaseNum).STDFanPower) *
1300 190 : RefrigCase(CaseNum).Length;
1301 :
1302 : // sensible case credits are calculated as the difference between the design sensible capacity and the case heat gain
1303 190 : RefrigCase(CaseNum).DesignSensCaseCredit = DesignSensibleCap - CaseHeatGain;
1304 :
1305 : // compare case loads to design capacity
1306 190 : if (DesignSensibleCap < CaseHeatGain) {
1307 0 : ShowSevereError(
1308 : state,
1309 0 : format("{}{}=\"{}\", the sum of lighting, fan, and anti-sweat heater energy is greater than refrigerated case sensible capacity",
1310 : RoutineName,
1311 : CurrentModuleObject,
1312 0 : RefrigCase(CaseNum).Name));
1313 0 : ErrorsFound = true;
1314 : }
1315 :
1316 190 : if (lAlphaBlanks(14)) {
1317 120 : } else if ((RefrigCase(CaseNum).caseCreditFracSched = Sched::GetSchedule(state, Alphas(14))) == nullptr) {
1318 0 : ShowSevereItemNotFound(state, eoh, cAlphaFieldNames(14), Alphas(14));
1319 0 : ErrorsFound = true;
1320 120 : } else if (!RefrigCase(CaseNum).caseCreditFracSched->checkMinMaxVals(state, Clusive::In, 0.0, Clusive::In, 1.0)) {
1321 0 : Sched::ShowSevereBadMinMax(state, eoh, cAlphaFieldNames(14), Alphas(14), Clusive::In, 0.0, Clusive::In, 1.0);
1322 0 : ErrorsFound = true;
1323 : }
1324 :
1325 190 : RefrigCase(CaseNum).DesignRatedCap = RefrigCase(CaseNum).RateTotCapPerLength * RefrigCase(CaseNum).Length;
1326 190 : RefrigCase(CaseNum).DesignLatentCap = RefrigCase(CaseNum).DesignRatedCap * RefrigCase(CaseNum).RatedLHR * RefrigCase(CaseNum).RatedRTF;
1327 190 : RefrigCase(CaseNum).DesignDefrostCap = RefrigCase(CaseNum).DefrostPower * RefrigCase(CaseNum).Length;
1328 190 : RefrigCase(CaseNum).DesignLighting = RefrigCase(CaseNum).LightingPower * RefrigCase(CaseNum).Length;
1329 190 : RefrigCase(CaseNum).DesignFanPower = RefrigCase(CaseNum).OperatingFanPower * RefrigCase(CaseNum).Length;
1330 :
1331 : // Design evaporating temperature: for a DX system, saturated temperature for pressure leaving case
1332 : // : for a liquid system, liquid temperature entering case
1333 190 : NumNum = 20;
1334 190 : if (!lNumericBlanks(NumNum)) {
1335 89 : RefrigCase(CaseNum).EvapTempDesign = Numbers(NumNum);
1336 89 : if (RefrigCase(CaseNum).EvapTempDesign >= RefrigCase(CaseNum).Temperature) {
1337 0 : ShowSevereError(state,
1338 0 : format("{}{}=\"{}\" {} must be below {}",
1339 : RoutineName,
1340 : CurrentModuleObject,
1341 0 : RefrigCase(CaseNum).Name,
1342 : cNumericFieldNames(NumNum),
1343 : cNumericFieldNames(7)));
1344 0 : ErrorsFound = true;
1345 : }
1346 : } else {
1347 101 : RefrigCase(CaseNum).EvapTempDesign = RefrigCase(CaseNum).Temperature - DelEvapTDefault;
1348 : // default 5C less than case operating temperature
1349 : }
1350 :
1351 190 : NumNum = 21;
1352 190 : if (!lNumericBlanks(NumNum)) {
1353 12 : RefrigCase(CaseNum).RefrigInventory = Numbers(NumNum);
1354 12 : RefrigCase(CaseNum).DesignRefrigInventory = RefrigCase(CaseNum).RefrigInventory * RefrigCase(CaseNum).Length;
1355 12 : if (RefrigCase(CaseNum).RefrigInventory < 0.0) {
1356 0 : ShowSevereError(state,
1357 0 : format("{}{}=\"{}\" {} must be a positive number.",
1358 : RoutineName,
1359 : CurrentModuleObject,
1360 0 : RefrigCase(CaseNum).Name,
1361 : cNumericFieldNames(NumNum)));
1362 0 : ErrorsFound = true;
1363 : }
1364 : } else {
1365 178 : RefrigCase(CaseNum).RefrigInventory = 0.0;
1366 : }
1367 :
1368 190 : } // Individual refrigerated cases
1369 : } //(NumSimulationCases > 0 )
1370 :
1371 : //************ START WALK IN COOLER INPUT **************
1372 :
1373 801 : if (state.dataRefrigCase->NumSimulationWalkIns > 0) {
1374 14 : CurrentModuleObject = "Refrigeration:WalkIn";
1375 31 : for (int WalkInID = 1; WalkInID <= state.dataRefrigCase->NumSimulationWalkIns; ++WalkInID) {
1376 17 : state.dataInputProcessing->inputProcessor->getObjectItem(state,
1377 : CurrentModuleObject,
1378 : WalkInID,
1379 : Alphas,
1380 : NumAlphas,
1381 : Numbers,
1382 : NumNumbers,
1383 : IOStatus,
1384 : lNumericBlanks,
1385 : lAlphaBlanks,
1386 : cAlphaFieldNames,
1387 : cNumericFieldNames);
1388 :
1389 17 : ErrorObjectHeader eoh{routineName, CurrentModuleObject, Alphas(1)};
1390 :
1391 17 : WalkIn(WalkInID).Name = Alphas(1);
1392 :
1393 17 : if (lAlphaBlanks(2)) {
1394 0 : WalkIn(WalkInID).availSched = Sched::GetScheduleAlwaysOn(state);
1395 17 : } else if ((WalkIn(WalkInID).availSched = Sched::GetSchedule(state, Alphas(2))) == nullptr) {
1396 0 : ShowSevereItemNotFound(state, eoh, cAlphaFieldNames(2), Alphas(2));
1397 0 : ErrorsFound = true;
1398 17 : } else if (!WalkIn(WalkInID).availSched->checkMinMaxVals(state, Clusive::In, 0.0, Clusive::In, 1.0)) {
1399 0 : Sched::ShowSevereBadMinMax(state, eoh, cAlphaFieldNames(2), Alphas(2), Clusive::In, 0.0, Clusive::In, 1.0);
1400 0 : ErrorsFound = true;
1401 : }
1402 :
1403 17 : WalkIn(WalkInID).DesignRatedCap = Numbers(1);
1404 17 : if (Numbers(1) <= 0.0) {
1405 0 : ShowSevereError(
1406 : state,
1407 0 : format(
1408 0 : "{}{}=\"{}\", {} must be greater than 0 W", RoutineName, CurrentModuleObject, WalkIn(WalkInID).Name, cNumericFieldNames(1)));
1409 0 : ErrorsFound = true;
1410 : }
1411 :
1412 17 : if (!lNumericBlanks(2)) {
1413 17 : WalkIn(WalkInID).Temperature = Numbers(2);
1414 : } else {
1415 0 : ShowSevereEmptyField(state, eoh, cNumericFieldNames(2));
1416 0 : ErrorsFound = true;
1417 : }
1418 :
1419 17 : if (!lNumericBlanks(3)) {
1420 17 : WalkIn(WalkInID).TEvapDesign = Numbers(3);
1421 : } else {
1422 0 : ShowSevereEmptyField(state, eoh, cNumericFieldNames(3));
1423 0 : ErrorsFound = true;
1424 : }
1425 :
1426 17 : if (!lNumericBlanks(4)) {
1427 17 : WalkIn(WalkInID).HeaterPower = Numbers(4);
1428 : } else {
1429 0 : ShowSevereEmptyField(state, eoh, cNumericFieldNames(4));
1430 0 : ErrorsFound = true;
1431 : }
1432 :
1433 17 : AlphaNum = 3;
1434 17 : if (lAlphaBlanks(AlphaNum)) {
1435 0 : WalkIn(WalkInID).heaterSched = Sched::GetScheduleAlwaysOn(state); // Not an availability schedule, but defaults to constant-1.0
1436 17 : } else if ((WalkIn(WalkInID).heaterSched = Sched::GetSchedule(state, Alphas(AlphaNum))) == nullptr) {
1437 0 : ShowSevereItemNotFound(state, eoh, cAlphaFieldNames(AlphaNum), Alphas(AlphaNum));
1438 0 : ErrorsFound = true;
1439 17 : } else if (!WalkIn(WalkInID).heaterSched->checkMinMaxVals(state, Clusive::In, 0.0, Clusive::In, 1.0)) {
1440 0 : Sched::ShowSevereBadMinMax(state, eoh, cAlphaFieldNames(AlphaNum), Alphas(AlphaNum), Clusive::In, 0.0, Clusive::In, 1.0);
1441 0 : ErrorsFound = true;
1442 : }
1443 :
1444 17 : if (!lNumericBlanks(5) && Numbers(5) > 0.0) {
1445 17 : WalkIn(WalkInID).CoilFanPower = Numbers(5);
1446 : } else {
1447 0 : ShowWarningError(state,
1448 0 : format("{}{}=\"{}\", {} was not input or was less than 0 and default of 375.0 W will be used ",
1449 : RoutineName,
1450 : CurrentModuleObject,
1451 0 : WalkIn(WalkInID).Name,
1452 : cNumericFieldNames(5)));
1453 0 : WalkIn(WalkInID).CoilFanPower = 375.0; // default value = 1/2 hp
1454 : }
1455 :
1456 17 : if (lNumericBlanks(6)) {
1457 0 : WalkIn(WalkInID).CircFanPower = 0.0;
1458 : } else {
1459 17 : WalkIn(WalkInID).CircFanPower = Numbers(6);
1460 17 : if (Numbers(7) < 0.0) {
1461 0 : ShowSevereError(state,
1462 0 : format("{}{}=\"{}\", {} must be greater than >= 0 W",
1463 : RoutineName,
1464 : CurrentModuleObject,
1465 0 : WalkIn(WalkInID).Name,
1466 : cNumericFieldNames(6)));
1467 0 : ErrorsFound = true;
1468 : }
1469 : }
1470 :
1471 17 : if (!lNumericBlanks(7)) {
1472 17 : WalkIn(WalkInID).DesignLighting = Numbers(7);
1473 : } else {
1474 0 : ShowSevereEmptyField(state, eoh, cNumericFieldNames(7));
1475 0 : ErrorsFound = true;
1476 : }
1477 :
1478 17 : AlphaNum = 4;
1479 17 : if (lAlphaBlanks(AlphaNum)) {
1480 0 : WalkIn(WalkInID).lightingSched = Sched::GetScheduleAlwaysOn(state); // Not an availability schedule, but defaults to constant-1.0
1481 17 : } else if ((WalkIn(WalkInID).lightingSched = Sched::GetSchedule(state, Alphas(AlphaNum))) == nullptr) {
1482 0 : ShowSevereItemNotFound(state, eoh, cAlphaFieldNames(AlphaNum), Alphas(AlphaNum));
1483 0 : ErrorsFound = true;
1484 17 : } else if (!WalkIn(WalkInID).lightingSched->checkMinMaxVals(state, Clusive::In, 0.0, Clusive::In, 1.0)) {
1485 0 : Sched::ShowSevereBadMinMax(state, eoh, cAlphaFieldNames(AlphaNum), Alphas(AlphaNum), Clusive::In, 0.0, Clusive::In, 1.0);
1486 0 : ErrorsFound = true;
1487 : }
1488 :
1489 : // Input walk-in cooler defrost information
1490 17 : AlphaNum = 5;
1491 17 : if (lAlphaBlanks(AlphaNum)) {
1492 0 : WalkIn(WalkInID).defrostType = DefrostType::Elec;
1493 17 : } else if ((WalkIn(WalkInID).defrostType = static_cast<DefrostType>(getEnumValue(defrostTypeNamesUC, Alphas(AlphaNum)))) ==
1494 : DefrostType::Invalid) {
1495 0 : ShowSevereInvalidKey(state, eoh, cAlphaFieldNames(AlphaNum), Alphas(AlphaNum));
1496 0 : ErrorsFound = true;
1497 : }
1498 :
1499 17 : AlphaNum = 6;
1500 17 : if (lAlphaBlanks(AlphaNum)) {
1501 0 : WalkIn(WalkInID).DefrostControlType = DefrostCtrlType::Sched;
1502 17 : } else if ((WalkIn(WalkInID).DefrostControlType = static_cast<DefrostCtrlType>(getEnumValue(defrostCtrlTypeNamesUC, Alphas(AlphaNum)))) ==
1503 : DefrostCtrlType::Invalid) {
1504 0 : ShowSevereInvalidKey(state, eoh, cAlphaFieldNames(AlphaNum), Alphas(AlphaNum));
1505 0 : ErrorsFound = true;
1506 : } // defrost control type
1507 :
1508 : // convert defrost schedule name to pointer
1509 17 : AlphaNum = 7;
1510 :
1511 17 : if (lAlphaBlanks(AlphaNum)) {
1512 0 : ShowSevereEmptyField(state, eoh, cAlphaFieldNames(AlphaNum));
1513 0 : ErrorsFound = true;
1514 17 : } else if ((WalkIn(WalkInID).defrostSched = Sched::GetSchedule(state, Alphas(AlphaNum))) == nullptr) {
1515 0 : ShowSevereItemNotFound(state, eoh, cAlphaFieldNames(AlphaNum), Alphas(AlphaNum));
1516 0 : ErrorsFound = true;
1517 17 : } else if (!WalkIn(WalkInID).defrostSched->checkMinMaxVals(state, Clusive::In, 0.0, Clusive::In, 1.0)) {
1518 0 : Sched::ShowSevereBadMinMax(state, eoh, cAlphaFieldNames(AlphaNum), Alphas(AlphaNum), Clusive::In, 0.0, Clusive::In, 1.0);
1519 0 : ErrorsFound = true;
1520 : }
1521 :
1522 : // convert defrost drip-down schedule name to pointer
1523 : // some defrost types do not use drip-down schedules, use same defrost schedule pointer in that case
1524 17 : AlphaNum = 8;
1525 17 : if (lAlphaBlanks(AlphaNum)) { // blank input so use drip down schedule for defrost
1526 1 : WalkIn(WalkInID).defrostDripDownSched = WalkIn(WalkInID).defrostSched;
1527 16 : } else if ((WalkIn(WalkInID).defrostDripDownSched = Sched::GetSchedule(state, Alphas(AlphaNum))) == nullptr) {
1528 0 : ShowSevereItemNotFound(state, eoh, cAlphaFieldNames(AlphaNum), Alphas(AlphaNum));
1529 0 : ErrorsFound = true;
1530 16 : } else if (!WalkIn(WalkInID).defrostDripDownSched->checkMinMaxVals(state, Clusive::In, 0.0, Clusive::In, 1.0)) {
1531 0 : Sched::ShowSevereBadMinMax(state, eoh, cAlphaFieldNames(AlphaNum), Alphas(AlphaNum), Clusive::In, 0.0, Clusive::In, 1.0);
1532 0 : ErrorsFound = true;
1533 : }
1534 :
1535 17 : if (WalkIn(WalkInID).defrostType == DefrostType::OffCycle || WalkIn(WalkInID).defrostType == DefrostType::None) {
1536 0 : WalkIn(WalkInID).DefrostCapacity = 0.0;
1537 : // Don't even need to read N8 or N9 for those two defrost types.
1538 : } else { // have electric or hot gas/brine defrost
1539 17 : if ((lNumericBlanks(8)) || (Numbers(8) <= 0.0)) {
1540 0 : ShowSevereError(state,
1541 0 : format("{}{}=\"{}\", {} must be input and greater than or equal to 0 W for {} {}",
1542 : RoutineName,
1543 : CurrentModuleObject,
1544 0 : WalkIn(WalkInID).Name,
1545 : cNumericFieldNames(8),
1546 : cAlphaFieldNames(5),
1547 : Alphas(5)));
1548 0 : ErrorsFound = true;
1549 : } else {
1550 17 : WalkIn(WalkInID).DefrostCapacity = Numbers(8);
1551 : } // Blank or negative N8
1552 :
1553 : // defaults for defrost energy fraction are 0.7 for elec defrost and 0.3 for warm fluid
1554 : // note this value is only used for temperature terminated defrost control type
1555 17 : if (WalkIn(WalkInID).defrostType == DefrostType::Elec) {
1556 14 : WalkIn(WalkInID).DefEnergyFraction = 0.7;
1557 : }
1558 17 : if (WalkIn(WalkInID).defrostType == DefrostType::Fluid) {
1559 3 : WalkIn(WalkInID).DefEnergyFraction = 0.3;
1560 : }
1561 17 : if (!lNumericBlanks(9)) {
1562 6 : if ((Numbers(9) > 1.0) || (Numbers(9) < 0.0)) {
1563 0 : ShowWarningError(state,
1564 0 : format("{}{}=\"{}\", {} must be between 0 and 1, default values will be used.",
1565 : RoutineName,
1566 : CurrentModuleObject,
1567 0 : WalkIn(WalkInID).Name,
1568 : cNumericFieldNames(9)));
1569 : } else {
1570 6 : WalkIn(WalkInID).DefEnergyFraction = Numbers(9);
1571 : } // number out of range
1572 : } // lnumericblanks
1573 : } // defrost type
1574 :
1575 : // convert restocking schedule name to pointer, default of 0.1 is assigned inside walkin subroutine if blank
1576 17 : AlphaNum = 9;
1577 17 : if (lAlphaBlanks(AlphaNum)) {
1578 17 : } else if ((WalkIn(WalkInID).stockingSched = Sched::GetSchedule(state, Alphas(AlphaNum))) == nullptr) {
1579 0 : ShowSevereItemNotFound(state, eoh, cAlphaFieldNames(AlphaNum), Alphas(AlphaNum));
1580 0 : ErrorsFound = true;
1581 : }
1582 :
1583 17 : WalkIn(WalkInID).DesignRefrigInventory = 0.0;
1584 17 : if (!lNumericBlanks(10)) {
1585 6 : WalkIn(WalkInID).DesignRefrigInventory = Numbers(10);
1586 : }
1587 :
1588 17 : if (!lNumericBlanks(11)) {
1589 17 : WalkIn(WalkInID).FloorArea = Numbers(11);
1590 : } else {
1591 0 : ShowSevereError(
1592 0 : state, format("{}{}=\"{}\", {} must be input", RoutineName, CurrentModuleObject, WalkIn(WalkInID).Name, cNumericFieldNames(11)));
1593 0 : ErrorsFound = true;
1594 : }
1595 :
1596 17 : if (lNumericBlanks(12)) {
1597 0 : WalkIn(WalkInID).FloorUValue = DefaultWISurfaceUValue;
1598 : } else {
1599 17 : WalkIn(WalkInID).FloorUValue = Numbers(12);
1600 17 : if (Numbers(12) <= 0.0) {
1601 0 : ShowSevereError(
1602 : state,
1603 0 : format("{}{}=\"{}\", {} must be > 0.", RoutineName, CurrentModuleObject, WalkIn(WalkInID).Name, cNumericFieldNames(12)));
1604 0 : ErrorsFound = true;
1605 : }
1606 : }
1607 :
1608 : // Calculate the number of zones exposed to walk-in based on number of input fields, all integer math,
1609 : // This approach used because last zone could have less than NumWIFieldsPerZone due to optional values
1610 17 : int NumWIFieldsPerZone = NumWIAlphaFieldsPerZone + NumWINumberFieldsPerZone;
1611 17 : int NumWIFieldsTotal = NumNumbers + NumAlphas - NumWIAlphaFieldsBeforeZoneInput - NumWINumberFieldsBeforeZoneInput;
1612 17 : int NumZones = 1;
1613 17 : if (NumWIFieldsTotal > NumWIFieldsPerZone) {
1614 0 : NumZones = 2;
1615 : }
1616 17 : if (NumWIFieldsTotal > (2 * NumWIFieldsPerZone)) {
1617 0 : NumZones = 3;
1618 : }
1619 17 : if (NumWIFieldsTotal > (3 * NumWIFieldsPerZone)) {
1620 0 : NumZones = 4;
1621 : }
1622 17 : if (NumWIFieldsTotal > (4 * NumWIFieldsPerZone)) {
1623 0 : NumZones = 5;
1624 : }
1625 17 : if (NumWIFieldsTotal > (5 * NumWIFieldsPerZone)) {
1626 0 : NumZones = 6;
1627 : }
1628 17 : WalkIn(WalkInID).NumZones = NumZones;
1629 :
1630 : // All variables for walk-in/zone interactions need to be allocated after know number of zones
1631 : // Autodesk Missing initialization added below: At least SensZoneCreditRate was used uninitialized
1632 17 : if (!allocated(WalkIn(WalkInID).ZoneName)) {
1633 17 : WalkIn(WalkInID).ZoneName.allocate(NumZones);
1634 : }
1635 17 : if (!allocated(WalkIn(WalkInID).ZoneNum)) {
1636 17 : WalkIn(WalkInID).ZoneNum.allocate(NumZones) = 0;
1637 : }
1638 17 : if (!allocated(WalkIn(WalkInID).ZoneNodeNum)) {
1639 17 : WalkIn(WalkInID).ZoneNodeNum.allocate(NumZones) = 0;
1640 : }
1641 17 : if (!allocated(WalkIn(WalkInID).SurfaceArea)) {
1642 17 : WalkIn(WalkInID).SurfaceArea.allocate(NumZones) = 0.0;
1643 : }
1644 17 : if (!allocated(WalkIn(WalkInID).UValue)) {
1645 17 : WalkIn(WalkInID).UValue.allocate(NumZones) = 0.0;
1646 : }
1647 17 : if (!allocated(WalkIn(WalkInID).UValueGlassDr)) {
1648 17 : WalkIn(WalkInID).UValueGlassDr.allocate(NumZones) = 0.0;
1649 : }
1650 17 : if (!allocated(WalkIn(WalkInID).glassDoorOpenScheds)) {
1651 17 : WalkIn(WalkInID).glassDoorOpenScheds.allocate(NumZones) = nullptr; // What is this?
1652 : }
1653 17 : if (!allocated(WalkIn(WalkInID).AreaGlassDr)) {
1654 17 : WalkIn(WalkInID).AreaGlassDr.allocate(NumZones) = 0.0;
1655 : }
1656 17 : if (!allocated(WalkIn(WalkInID).HeightGlassDr)) {
1657 17 : WalkIn(WalkInID).HeightGlassDr.allocate(NumZones) = 0.0;
1658 : }
1659 17 : if (!allocated(WalkIn(WalkInID).UValueStockDr)) {
1660 17 : WalkIn(WalkInID).UValueStockDr.allocate(NumZones) = 0.0;
1661 : }
1662 17 : if (!allocated(WalkIn(WalkInID).stockDoorOpenScheds)) {
1663 17 : WalkIn(WalkInID).stockDoorOpenScheds.allocate(NumZones) = nullptr; // What is this?
1664 : }
1665 17 : if (!allocated(WalkIn(WalkInID).StockDoorProtectType)) {
1666 17 : WalkIn(WalkInID).StockDoorProtectType.allocate(NumZones) = WIStockDoor::Invalid;
1667 : }
1668 17 : if (!allocated(WalkIn(WalkInID).AreaStockDr)) {
1669 17 : WalkIn(WalkInID).AreaStockDr.allocate(NumZones) = 0.0;
1670 : }
1671 17 : if (!allocated(WalkIn(WalkInID).HeightStockDr)) {
1672 17 : WalkIn(WalkInID).HeightStockDr.allocate(NumZones) = 0.0;
1673 : }
1674 17 : if (!allocated(WalkIn(WalkInID).SensZoneCreditRate)) {
1675 17 : WalkIn(WalkInID).SensZoneCreditRate.allocate(NumZones) = 0.0;
1676 : }
1677 17 : if (!allocated(WalkIn(WalkInID).SensZoneCreditCoolRate)) {
1678 17 : WalkIn(WalkInID).SensZoneCreditCoolRate.allocate(NumZones) = 0.0;
1679 : }
1680 17 : if (!allocated(WalkIn(WalkInID).SensZoneCreditCool)) {
1681 17 : WalkIn(WalkInID).SensZoneCreditCool.allocate(NumZones) = 0.0;
1682 : }
1683 17 : if (!allocated(WalkIn(WalkInID).SensZoneCreditHeatRate)) {
1684 17 : WalkIn(WalkInID).SensZoneCreditHeatRate.allocate(NumZones) = 0.0;
1685 : }
1686 17 : if (!allocated(WalkIn(WalkInID).SensZoneCreditHeat)) {
1687 17 : WalkIn(WalkInID).SensZoneCreditHeat.allocate(NumZones) = 0.0;
1688 : }
1689 17 : if (!allocated(WalkIn(WalkInID).LatZoneCreditRate)) {
1690 17 : WalkIn(WalkInID).LatZoneCreditRate.allocate(NumZones) = 0.0;
1691 : }
1692 17 : if (!allocated(WalkIn(WalkInID).LatZoneCredit)) {
1693 17 : WalkIn(WalkInID).LatZoneCredit.allocate(NumZones) = 0.0;
1694 : }
1695 :
1696 17 : int AStart = NumWIAlphaFieldsBeforeZoneInput + 1;
1697 17 : int NStart = NumWINumberFieldsBeforeZoneInput + 1;
1698 34 : for (int ZoneID = 1; ZoneID <= NumZones; ++ZoneID) {
1699 : // Get the Zone node number from the zone name
1700 : // The Zone Node is needed to get the zone's ambient conditions, DataGlobals::NumOfZones from dataglobals
1701 17 : WalkIn(WalkInID).ZoneName(ZoneID) = Alphas(AStart);
1702 17 : WalkIn(WalkInID).ZoneNum(ZoneID) = Util::FindItemInList(Alphas(AStart), state.dataHeatBal->Zone);
1703 :
1704 17 : if (WalkIn(WalkInID).ZoneNum(ZoneID) == 0) {
1705 0 : ShowSevereItemNotFound(state, eoh, cAlphaFieldNames(AStart), Alphas(AStart));
1706 0 : ErrorsFound = true;
1707 : } else {
1708 17 : state.dataRefrigCase->RefrigPresentInZone(WalkIn(WalkInID).ZoneNum(ZoneID)) = true;
1709 : }
1710 17 : WalkIn(WalkInID).ZoneNodeNum(ZoneID) = DataZoneEquipment::GetSystemNodeNumberForZone(state, WalkIn(WalkInID).ZoneNum(ZoneID));
1711 17 : if (WalkIn(WalkInID).ZoneNum(ZoneID) >= 0) {
1712 17 : if (WalkIn(WalkInID).ZoneNodeNum(ZoneID) == 0) {
1713 0 : ShowSevereItemNotFound(state, eoh, cAlphaFieldNames(AStart), Alphas(AStart));
1714 0 : ShowContinueError(state, ".. Walk Ins must reference a controlled Zone (appear in a ZoneHVAC:EquipmentConnections object.");
1715 0 : ErrorsFound = true;
1716 : }
1717 : }
1718 :
1719 17 : if (!lNumericBlanks(NStart)) {
1720 17 : WalkIn(WalkInID).SurfaceArea(ZoneID) = Numbers(NStart);
1721 : } else {
1722 0 : ShowSevereError(state,
1723 0 : format("{}{}=\"{}\", {} must be input for Zone: {}",
1724 : RoutineName,
1725 : CurrentModuleObject,
1726 0 : WalkIn(WalkInID).Name,
1727 : cNumericFieldNames(NStart),
1728 0 : WalkIn(WalkInID).ZoneName(ZoneID)));
1729 0 : ErrorsFound = true;
1730 : }
1731 :
1732 17 : if (lNumericBlanks(NStart + 1)) {
1733 0 : WalkIn(WalkInID).UValue(ZoneID) = DefaultWISurfaceUValue;
1734 : } else {
1735 17 : WalkIn(WalkInID).UValue(ZoneID) = Numbers(NStart + 1);
1736 17 : if (Numbers(NStart + 1) <= 0.0) {
1737 0 : ShowSevereError(state,
1738 0 : format(R"({}{}="{}", Zone="{}", {} must be > 0.)",
1739 : RoutineName,
1740 : CurrentModuleObject,
1741 0 : WalkIn(WalkInID).Name,
1742 0 : WalkIn(WalkInID).ZoneName(ZoneID),
1743 : cNumericFieldNames(NStart + 1)));
1744 0 : ErrorsFound = true;
1745 : }
1746 : }
1747 :
1748 : // start IF set for glass doors in this zone
1749 17 : WalkIn(WalkInID).AreaGlassDr(ZoneID) = 0.0;
1750 17 : WalkIn(WalkInID).HeightGlassDr(ZoneID) = 0.0;
1751 17 : WalkIn(WalkInID).UValueGlassDr(ZoneID) = 0.0;
1752 17 : if (!lNumericBlanks(NStart + 2)) {
1753 6 : WalkIn(WalkInID).AreaGlassDr(ZoneID) = Numbers(NStart + 2);
1754 :
1755 6 : WalkIn(WalkInID).HeightGlassDr(ZoneID) = DefaultWIHeightGlassDr;
1756 6 : if (!lNumericBlanks(NStart + 3)) {
1757 6 : WalkIn(WalkInID).HeightGlassDr(ZoneID) = Numbers(NStart + 3);
1758 : }
1759 :
1760 6 : WalkIn(WalkInID).UValueGlassDr(ZoneID) = DefaultWIUValueGlassDr;
1761 6 : if (!lNumericBlanks(NStart + 4)) {
1762 6 : WalkIn(WalkInID).UValueGlassDr(ZoneID) = Numbers(NStart + 4);
1763 : }
1764 :
1765 : // convert door opening schedule name to pointer, default of 0.1 is assigned inside walkin subroutine if blank
1766 6 : if (lAlphaBlanks(AStart + 1)) {
1767 6 : } else if ((WalkIn(WalkInID).glassDoorOpenScheds(ZoneID) = Sched::GetSchedule(state, Alphas(AStart + 1))) == nullptr) {
1768 0 : ShowSevereItemNotFound(state, eoh, cAlphaFieldNames(AStart + 1), Alphas(AStart + 1));
1769 0 : ErrorsFound = true;
1770 6 : } else if (!WalkIn(WalkInID).glassDoorOpenScheds(ZoneID)->checkMinMaxVals(state, Clusive::In, 0.0, Clusive::In, 1.0)) {
1771 0 : Sched::ShowSevereBadMinMax(state, eoh, cAlphaFieldNames(AStart + 1), Alphas(AStart + 1), Clusive::In, 0.0, Clusive::In, 1.0);
1772 0 : ErrorsFound = true;
1773 : } // blank on door opening schedule (AStart + 1)
1774 : } // have glassdoor area facing zone (blank on lNumericBlanks(NStart+2))
1775 :
1776 : // start IF set for stock doors in this zone
1777 17 : WalkIn(WalkInID).AreaStockDr(ZoneID) = 0.0;
1778 17 : WalkIn(WalkInID).HeightStockDr(ZoneID) = 0.0;
1779 17 : WalkIn(WalkInID).UValueStockDr(ZoneID) = 0.0;
1780 17 : if (!lNumericBlanks(NStart + 5)) {
1781 17 : WalkIn(WalkInID).AreaStockDr(ZoneID) = Numbers(NStart + 5);
1782 :
1783 17 : WalkIn(WalkInID).HeightStockDr(ZoneID) = DefaultWIHeightStockDr;
1784 17 : if (!lNumericBlanks(NStart + 6)) {
1785 17 : WalkIn(WalkInID).HeightStockDr(ZoneID) = Numbers(NStart + 6);
1786 : }
1787 :
1788 17 : WalkIn(WalkInID).UValueStockDr(ZoneID) = DefaultWIUValueStockDr;
1789 17 : if (!lNumericBlanks(NStart + 7)) {
1790 6 : WalkIn(WalkInID).UValueStockDr(ZoneID) = Numbers(NStart + 7);
1791 : }
1792 :
1793 : // convert door opening schedule name to pointer, default of 0.1 is assigned inside walkin subroutine if blank
1794 17 : if (lAlphaBlanks(AStart + 2)) {
1795 17 : } else if ((WalkIn(WalkInID).stockDoorOpenScheds(ZoneID) = Sched::GetSchedule(state, Alphas(AStart + 2))) == nullptr) {
1796 0 : ShowSevereItemNotFound(state, eoh, cAlphaFieldNames(AStart + 2), Alphas(AStart + 2));
1797 0 : ErrorsFound = true;
1798 17 : } else if (!WalkIn(WalkInID).stockDoorOpenScheds(ZoneID)->checkMinMaxVals(state, Clusive::In, 0.0, Clusive::In, 1.0)) {
1799 0 : Sched::ShowSevereBadMinMax(state, eoh, cAlphaFieldNames(AStart + 2), Alphas(AStart + 2), Clusive::In, 0.0, Clusive::In, 1.0);
1800 0 : ErrorsFound = true;
1801 : } // blank on door opening schedule (AStart + 2)
1802 :
1803 17 : if (lAlphaBlanks(AStart + 3)) {
1804 : // default air curtain
1805 0 : WalkIn(WalkInID).StockDoorProtectType(ZoneID) = WIStockDoor::AirCurtain;
1806 17 : } else if ((WalkIn(WalkInID).StockDoorProtectType(ZoneID) =
1807 34 : static_cast<WIStockDoor>(getEnumValue(wiStockDoorNamesUC, Alphas(AStart + 3)))) == WIStockDoor::Invalid) {
1808 0 : ShowSevereInvalidKey(state, eoh, cAlphaFieldNames(AStart + 3), Alphas(AStart + 3));
1809 0 : ErrorsFound = true;
1810 : } // stock door protection (AStart + 3) blank
1811 : } // have Stockdoor area facing zone
1812 :
1813 17 : AStart += NumWIAlphaFieldsPerZone;
1814 17 : NStart += NumWINumberFieldsPerZone;
1815 : } // Zones for Walk Ins
1816 : } // Individual Walk Ins
1817 : } //(NumSimulationWalkIns > 0 )
1818 :
1819 : //************* Start Indiv Refrig Air Chillers
1820 :
1821 801 : if (state.dataRefrigCase->NumSimulationRefrigAirChillers > 0) {
1822 1 : CurrentModuleObject = "Refrigeration:AirChiller";
1823 84 : for (int CoilID = 1; CoilID <= state.dataRefrigCase->NumSimulationRefrigAirChillers; ++CoilID) {
1824 : // A1
1825 83 : AlphaNum = 1;
1826 83 : state.dataInputProcessing->inputProcessor->getObjectItem(state,
1827 : CurrentModuleObject,
1828 : CoilID,
1829 : Alphas,
1830 : NumAlphas,
1831 : Numbers,
1832 : NumNumbers,
1833 : IOStatus,
1834 : lNumericBlanks,
1835 : lAlphaBlanks,
1836 : cAlphaFieldNames,
1837 : cNumericFieldNames);
1838 :
1839 83 : ErrorObjectHeader eoh{routineName, CurrentModuleObject, Alphas(1)};
1840 :
1841 83 : Util::IsNameEmpty(state, Alphas(1), CurrentModuleObject, ErrorsFound);
1842 :
1843 83 : WarehouseCoil(CoilID).Name = Alphas(AlphaNum);
1844 :
1845 : // A2
1846 83 : ++AlphaNum;
1847 83 : if (lAlphaBlanks(AlphaNum)) {
1848 0 : WarehouseCoil(CoilID).availSched = Sched::GetScheduleAlwaysOn(state);
1849 83 : } else if ((WarehouseCoil(CoilID).availSched = Sched::GetSchedule(state, Alphas(AlphaNum))) == nullptr) {
1850 0 : ShowSevereItemNotFound(state, eoh, cAlphaFieldNames(AlphaNum), Alphas(AlphaNum));
1851 0 : ErrorsFound = true;
1852 83 : } else if (!WarehouseCoil(CoilID).availSched->checkMinMaxVals(state, Clusive::In, 0.0, Clusive::In, 1.0)) {
1853 0 : Sched::ShowSevereBadMinMax(state, eoh, cAlphaFieldNames(AlphaNum), Alphas(AlphaNum), Clusive::In, 0.0, Clusive::In, 1.0);
1854 0 : ErrorsFound = true;
1855 : }
1856 :
1857 : // Input capacity rating type
1858 : // bbbbb input values (DT1 or DTM type)translate DT1 to DTm here because node will give avg temp?
1859 : // ask whether ceiling or floor mounted? - effects translation from DT1 to DTM
1860 : // input coil condition, wet or dry OR input rating basis, European SC1, SC2 etc., have to combine with refrigerant factor)
1861 : // rated capacity, BAC give W/C, European gives W
1862 : // fin material factor, default 1
1863 : // refrigerant factor (factor of both refrigerant and Tevap)
1864 :
1865 : // A3
1866 83 : ++AlphaNum;
1867 83 : if (lAlphaBlanks(AlphaNum)) {
1868 0 : ShowSevereEmptyField(state, eoh, cAlphaFieldNames(AlphaNum));
1869 0 : ErrorsFound = true;
1870 83 : } else if ((WarehouseCoil(CoilID).ratingType = static_cast<RatingType>(getEnumValue(ratingTypeNamesUC, Alphas(AlphaNum)))) ==
1871 : RatingType::Invalid) {
1872 :
1873 0 : ShowSevereInvalidKey(state, eoh, cAlphaFieldNames(AlphaNum), Alphas(AlphaNum));
1874 0 : ErrorsFound = true;
1875 : }
1876 :
1877 : // Here have to do select case with one numeric field with units of W and the second with units of W/deltaC,
1878 : // (RatedRH field only used for RatedCapacityTotal type)
1879 : { // Why is this a new scope
1880 83 : switch (WarehouseCoil(CoilID).ratingType) {
1881 81 : case RatingType::UnitLoadFactorSens: {
1882 : // N1
1883 81 : NumNum = 1;
1884 81 : if (!lNumericBlanks(NumNum) && Numbers(NumNum) > 0.0) {
1885 81 : WarehouseCoil(CoilID).UnitLoadFactorSens = Numbers(NumNum);
1886 : } else {
1887 0 : ShowSevereError(state,
1888 0 : format("{}{}=\"{}\", {} must be input and be greater than 0 W/C",
1889 : RoutineName,
1890 : CurrentModuleObject,
1891 0 : WarehouseCoil(CoilID).Name,
1892 : cNumericFieldNames(NumNum)));
1893 0 : ErrorsFound = true;
1894 : }
1895 81 : } break;
1896 :
1897 1 : case RatingType::RatedCapacityTotal: {
1898 : // N2
1899 1 : NumNum = 2; // advance past rating in W/C to N2 with rating in W
1900 1 : if (!lNumericBlanks(NumNum) && Numbers(NumNum) > 0.0) {
1901 1 : WarehouseCoil(CoilID).RatedCapTotal = Numbers(NumNum);
1902 : // N3
1903 1 : NumNum = 3; // read rated RH only for this type of rating at N3
1904 1 : if (lNumericBlanks(NumNum)) {
1905 0 : WarehouseCoil(CoilID).RatedRH = 0.85;
1906 : } else {
1907 1 : if (Numbers(NumNum) <= 0.0 || Numbers(NumNum) >= 100.0) {
1908 0 : ShowSevereError(state,
1909 0 : format("{}{}=\"{}\", {} must be greater than 0% and less than 100%",
1910 : RoutineName,
1911 : CurrentModuleObject,
1912 0 : WarehouseCoil(CoilID).Name,
1913 : cNumericFieldNames(NumNum)));
1914 0 : ErrorsFound = true;
1915 : }
1916 1 : WarehouseCoil(CoilID).RatedRH = Numbers(NumNum) / 100.0;
1917 : }
1918 : } else {
1919 0 : ShowSevereError(state,
1920 0 : format("{}{}=\"{}\", {} must be input and be greater than 0 W",
1921 : RoutineName,
1922 : CurrentModuleObject,
1923 0 : WarehouseCoil(CoilID).Name,
1924 : cNumericFieldNames(NumNum)));
1925 0 : ErrorsFound = true;
1926 : }
1927 1 : } break;
1928 :
1929 0 : case RatingType::EuropeanSC1Std: {
1930 : // N2
1931 0 : NumNum = 2; // advance past rating in W/C to rating in W at N2
1932 0 : if (!lNumericBlanks(NumNum) && Numbers(NumNum) > 0.0) {
1933 0 : WarehouseCoil(CoilID).RatedSensibleCap = Numbers(NumNum);
1934 0 : WarehouseCoil(CoilID).SCIndex = 1;
1935 : } else {
1936 0 : ShowSevereError(state,
1937 0 : format("{}{}=\"{}\", {} must be input and be greater than 0 W",
1938 : RoutineName,
1939 : CurrentModuleObject,
1940 0 : WarehouseCoil(CoilID).Name,
1941 : cNumericFieldNames(NumNum)));
1942 0 : ErrorsFound = true;
1943 : }
1944 0 : } break;
1945 :
1946 0 : case RatingType::EuropeanSC1Nom: {
1947 : // N2
1948 0 : NumNum = 2; // advance past rating in W/C to rating in W at N2
1949 0 : if (!lNumericBlanks(NumNum) && Numbers(NumNum) > 0.0) {
1950 0 : WarehouseCoil(CoilID).RatedCapTotal = Numbers(NumNum);
1951 0 : WarehouseCoil(CoilID).RatedSensibleCap = Numbers(NumNum) / EuropeanWetCoilFactor[0];
1952 0 : WarehouseCoil(CoilID).SCIndex = 1;
1953 : } else {
1954 0 : ShowSevereError(state,
1955 0 : format("{}{}=\"{}\", {} must be input and be greater than 0 W",
1956 : RoutineName,
1957 : CurrentModuleObject,
1958 0 : WarehouseCoil(CoilID).Name,
1959 : cNumericFieldNames(NumNum)));
1960 0 : ErrorsFound = true;
1961 : }
1962 0 : } break;
1963 :
1964 0 : case RatingType::EuropeanSC2Std: {
1965 : // N2
1966 0 : NumNum = 2; // advance past rating in W/C to rating in W at N2
1967 0 : if (!lNumericBlanks(NumNum) && Numbers(NumNum) > 0.0) {
1968 0 : WarehouseCoil(CoilID).RatedSensibleCap = Numbers(NumNum);
1969 0 : WarehouseCoil(CoilID).SCIndex = 2;
1970 : } else {
1971 0 : ShowSevereError(state,
1972 0 : format("{}{}=\"{}\", {} must be input and be greater than 0 W",
1973 : RoutineName,
1974 : CurrentModuleObject,
1975 0 : WarehouseCoil(CoilID).Name,
1976 : cNumericFieldNames(NumNum)));
1977 0 : ErrorsFound = true;
1978 : }
1979 0 : } break;
1980 :
1981 0 : case RatingType::EuropeanSC2Nom: {
1982 : // N2
1983 0 : NumNum = 2; // advance past rating in W/C to rating in W at N2
1984 0 : if (!lNumericBlanks(NumNum) && Numbers(NumNum) > 0.0) {
1985 0 : WarehouseCoil(CoilID).RatedCapTotal = Numbers(NumNum);
1986 0 : WarehouseCoil(CoilID).RatedSensibleCap = Numbers(NumNum) / EuropeanWetCoilFactor[1];
1987 0 : WarehouseCoil(CoilID).SCIndex = 2;
1988 : } else {
1989 0 : ShowSevereError(state,
1990 0 : format("{}{}=\"{}\", {} must be input and be greater than 0 W",
1991 : RoutineName,
1992 : CurrentModuleObject,
1993 0 : WarehouseCoil(CoilID).Name,
1994 : cNumericFieldNames(NumNum)));
1995 0 : ErrorsFound = true;
1996 : }
1997 0 : } break;
1998 :
1999 1 : case RatingType::EuropeanSC3Std: {
2000 : // N2
2001 1 : NumNum = 2; // advance past rating in W/C to rating in W at N2
2002 1 : if (!lNumericBlanks(NumNum) && Numbers(NumNum) > 0.0) {
2003 1 : WarehouseCoil(CoilID).RatedSensibleCap = Numbers(NumNum);
2004 1 : WarehouseCoil(CoilID).SCIndex = 3;
2005 : } else {
2006 0 : ShowSevereError(state,
2007 0 : format("{}{}=\"{}\", {} must be input and be greater than 0 W",
2008 : RoutineName,
2009 : CurrentModuleObject,
2010 0 : WarehouseCoil(CoilID).Name,
2011 : cNumericFieldNames(NumNum)));
2012 0 : ErrorsFound = true;
2013 : }
2014 1 : } break;
2015 :
2016 0 : case RatingType::EuropeanSC3Nom: {
2017 : // N2
2018 0 : NumNum = 2; // advance past rating in W/C to rating in W at N2
2019 0 : if (!lNumericBlanks(NumNum) && Numbers(NumNum) > 0.0) {
2020 0 : WarehouseCoil(CoilID).RatedCapTotal = Numbers(NumNum);
2021 0 : WarehouseCoil(CoilID).RatedSensibleCap = Numbers(NumNum) / EuropeanWetCoilFactor[2];
2022 0 : WarehouseCoil(CoilID).SCIndex = 3;
2023 : } else {
2024 0 : ShowSevereError(state,
2025 0 : format("{}{}=\"{}\", {} must be input and be greater than 0 W",
2026 : RoutineName,
2027 : CurrentModuleObject,
2028 0 : WarehouseCoil(CoilID).Name,
2029 : cNumericFieldNames(NumNum)));
2030 0 : ErrorsFound = true;
2031 : }
2032 0 : } break;
2033 :
2034 0 : case RatingType::EuropeanSC4Std: {
2035 : // N2
2036 0 : NumNum = 2; // advance past rating in W/C to rating in W at N2
2037 0 : if (!lNumericBlanks(NumNum) && Numbers(NumNum) > 0.0) {
2038 0 : WarehouseCoil(CoilID).RatedSensibleCap = Numbers(NumNum);
2039 0 : WarehouseCoil(CoilID).SCIndex = 4;
2040 : } else {
2041 0 : ShowSevereError(state,
2042 0 : format("{}{}=\"{}\", {} must be input and be greater than 0 W",
2043 : RoutineName,
2044 : CurrentModuleObject,
2045 0 : WarehouseCoil(CoilID).Name,
2046 : cNumericFieldNames(NumNum)));
2047 0 : ErrorsFound = true;
2048 : }
2049 0 : } break;
2050 :
2051 0 : case RatingType::EuropeanSC4Nom: {
2052 : // N2
2053 0 : NumNum = 2; // advance past rating in W/C to rating in W at N2
2054 0 : if (!lNumericBlanks(NumNum) && Numbers(NumNum) > 0.0) {
2055 0 : WarehouseCoil(CoilID).RatedCapTotal = Numbers(NumNum);
2056 0 : WarehouseCoil(CoilID).RatedSensibleCap = Numbers(NumNum) / EuropeanWetCoilFactor[3];
2057 0 : WarehouseCoil(CoilID).SCIndex = 4;
2058 : } else {
2059 0 : ShowSevereError(state,
2060 0 : format("{}{}=\"{}\", {} must be input and be greater than 0 W",
2061 : RoutineName,
2062 : CurrentModuleObject,
2063 0 : WarehouseCoil(CoilID).Name,
2064 : cNumericFieldNames(NumNum)));
2065 0 : ErrorsFound = true;
2066 : }
2067 0 : } break;
2068 :
2069 0 : case RatingType::EuropeanSC5Std: {
2070 : // N2
2071 0 : NumNum = 2; // advance past rating in W/C to rating in W at N2
2072 0 : if (!lNumericBlanks(NumNum) && Numbers(NumNum) > 0.0) {
2073 0 : WarehouseCoil(CoilID).RatedSensibleCap = Numbers(NumNum);
2074 0 : WarehouseCoil(CoilID).SCIndex = 5;
2075 : } else {
2076 0 : ShowSevereError(state,
2077 0 : format("{}{}=\"{}\", {} must be input and be greater than 0 W",
2078 : RoutineName,
2079 : CurrentModuleObject,
2080 0 : WarehouseCoil(CoilID).Name,
2081 : cNumericFieldNames(NumNum)));
2082 0 : ErrorsFound = true;
2083 : }
2084 0 : } break;
2085 :
2086 0 : case RatingType::EuropeanSC5Nom: {
2087 : // N2
2088 0 : NumNum = 2; // advance past rating in W/C to rating in W at N2
2089 0 : if (!lNumericBlanks(NumNum) && Numbers(NumNum) > 0.0) {
2090 0 : WarehouseCoil(CoilID).RatedCapTotal = Numbers(NumNum);
2091 0 : WarehouseCoil(CoilID).RatedSensibleCap = Numbers(NumNum) / EuropeanWetCoilFactor[4];
2092 0 : WarehouseCoil(CoilID).SCIndex = 5;
2093 : } else {
2094 0 : ShowSevereError(state,
2095 0 : format("{}{}=\"{}\", {} must be input and be greater than 0 W",
2096 : RoutineName,
2097 : CurrentModuleObject,
2098 0 : WarehouseCoil(CoilID).Name,
2099 : cNumericFieldNames(NumNum)));
2100 0 : ErrorsFound = true;
2101 : }
2102 0 : } break;
2103 :
2104 0 : default: {
2105 0 : } break;
2106 : }
2107 : } // WarehouseCoil(CoilID)%RatingType
2108 :
2109 : // N4
2110 83 : NumNum = 4;
2111 83 : if (!lNumericBlanks(NumNum)) {
2112 83 : WarehouseCoil(CoilID).TEvapDesign = Numbers(NumNum); // also used to rep inlet brine T later when add that option
2113 : } else {
2114 0 : ShowSevereError(
2115 : state,
2116 0 : format(
2117 0 : "{}{}=\"{}\", {} must be input", RoutineName, CurrentModuleObject, WarehouseCoil(CoilID).Name, cNumericFieldNames(NumNum)));
2118 0 : ErrorsFound = true;
2119 : }
2120 :
2121 83 : ++NumNum; // N5
2122 83 : if (!lNumericBlanks(NumNum)) {
2123 83 : WarehouseCoil(CoilID).RatedTemperatureDif = Numbers(NumNum);
2124 : // INLET temperature - evaporating temperature, NOT room temp - evap temp
2125 : } else {
2126 0 : ShowSevereError(
2127 : state,
2128 0 : format(
2129 0 : "{}{}=\"{}\", {} must be input", RoutineName, CurrentModuleObject, WarehouseCoil(CoilID).Name, cNumericFieldNames(NumNum)));
2130 0 : ErrorsFound = true;
2131 : }
2132 :
2133 83 : ++NumNum; // N6
2134 83 : if (!lNumericBlanks(NumNum)) {
2135 83 : WarehouseCoil(CoilID).MaxTemperatureDif = Numbers(NumNum);
2136 : // Maximum difference between INLET temperature - evaporating temperature, NOT room temp - evap temp
2137 : // Important when cooling down space at start of environment or if large stocking loads imposed.
2138 : } else {
2139 0 : WarehouseCoil(CoilID).MaxTemperatureDif = 1.3 * WarehouseCoil(CoilID).RatedTemperatureDif;
2140 0 : ShowWarningError(state,
2141 0 : format("{}{}=\"{}\", {} not entered, default 1.3 times rated temperature difference will be used.",
2142 : RoutineName,
2143 : CurrentModuleObject,
2144 0 : WarehouseCoil(CoilID).Name,
2145 : cNumericFieldNames(NumNum)));
2146 : }
2147 :
2148 : // Correction factor from manufacturer's rating for coil material, default 1.0
2149 83 : ++NumNum; // N7
2150 83 : WarehouseCoil(CoilID).CorrMaterial = 1.0; // default value
2151 83 : if (!lNumericBlanks(NumNum)) {
2152 0 : WarehouseCoil(CoilID).CorrMaterial = Numbers(NumNum);
2153 : }
2154 :
2155 : // Correction factor from manufacturer's rating for refrigerant, default 1.0
2156 83 : ++NumNum; // N8
2157 83 : WarehouseCoil(CoilID).CorrRefrigerant = 1.0; // default value
2158 83 : if (!lNumericBlanks(NumNum)) {
2159 1 : WarehouseCoil(CoilID).CorrRefrigerant = Numbers(NumNum);
2160 : }
2161 : // ONLY used if the Capacity Rating Type is CapacityTotalSpecificConditions
2162 :
2163 : // Convert all European sensible capacities to sensible load factors
2164 85 : if ((WarehouseCoil(CoilID).ratingType != RatingType::UnitLoadFactorSens) &&
2165 2 : (WarehouseCoil(CoilID).ratingType != RatingType::RatedCapacityTotal)) {
2166 1 : WarehouseCoil(CoilID).UnitLoadFactorSens = WarehouseCoil(CoilID).RatedSensibleCap / WarehouseCoil(CoilID).RatedTemperatureDif;
2167 : }
2168 : // Now have UnitLoadFactorSens for all except RatingType == RatedCapacityTotal
2169 :
2170 : // Apply material and refrigerant correction factors to sensible load factors
2171 83 : if ((WarehouseCoil(CoilID).ratingType != RatingType::RatedCapacityTotal)) {
2172 82 : WarehouseCoil(CoilID).UnitLoadFactorSens *= WarehouseCoil(CoilID).CorrMaterial * WarehouseCoil(CoilID).CorrRefrigerant;
2173 : }
2174 : // First calc of ratedsensiblecap for type type unitloadfactorsens
2175 83 : WarehouseCoil(CoilID).RatedSensibleCap = WarehouseCoil(CoilID).UnitLoadFactorSens * WarehouseCoil(CoilID).RatedTemperatureDif;
2176 : // A4 Enter capacity correction curve type
2177 83 : AlphaNum = 4;
2178 83 : if ((lAlphaBlanks(AlphaNum)) && (WarehouseCoil(CoilID).ratingType != RatingType::RatedCapacityTotal)) {
2179 : // For all except RatedCapacityTotal - default to linear capacity factor approximating Nelson August 2010 ASHRAE journal
2180 0 : WarehouseCoil(CoilID).SHRCorrType = SHRCorrectionType::SHR60;
2181 83 : } else if (WarehouseCoil(CoilID).ratingType == RatingType::RatedCapacityTotal) {
2182 : // For RatedCapacityTotal, the manufacturer's coil performance map is required
2183 : // Specify the performance map with TabularRHxDT1xTRoom
2184 1 : WarehouseCoil(CoilID).SHRCorrType = SHRCorrectionType::TabularRH_DT1_TRoom;
2185 1 : if (!(Util::SameString(Alphas(AlphaNum), "TabularRHxDT1xTRoom"))) {
2186 0 : ShowWarningError(state,
2187 0 : format(R"({}{}="{}", invalid {}="{}".)",
2188 : RoutineName,
2189 : CurrentModuleObject,
2190 0 : WarehouseCoil(CoilID).Name,
2191 : cAlphaFieldNames(AlphaNum),
2192 : Alphas(AlphaNum)));
2193 0 : ShowContinueError(state,
2194 : "The \"CapacityTotalSpecificConditions\" Capacity Rating Type has been specified for this air chiller. "
2195 : "This rating type requires ");
2196 0 : ShowContinueError(
2197 : state,
2198 0 : format(
2199 : R"(the "TabularRHxDT1xTRoom" correction curve. Verify that a valid "TabularRHxDT1xTRoom" curve is specified in "{}".)",
2200 : cAlphaFieldNames(AlphaNum + 1)));
2201 : }
2202 164 : } else if ((WarehouseCoil(CoilID).SHRCorrType =
2203 82 : static_cast<SHRCorrectionType>(getEnumValue(shrCorrectionTypeNamesUC, Alphas(AlphaNum)))) == SHRCorrectionType::Invalid) {
2204 0 : ShowSevereInvalidKey(state, eoh, cAlphaFieldNames(AlphaNum), Alphas(AlphaNum));
2205 0 : ErrorsFound = true;
2206 : }
2207 :
2208 83 : ++AlphaNum; // A5
2209 83 : ++NumNum; // N9
2210 83 : switch (WarehouseCoil(CoilID).SHRCorrType) {
2211 81 : case SHRCorrectionType::SHR60: {
2212 81 : WarehouseCoil(CoilID).SHRCorrection60 = 1.48; // reference Nelson, ASHRAE journal August 2010 Fig 2
2213 81 : if (!lNumericBlanks(NumNum)) {
2214 81 : WarehouseCoil(CoilID).SHRCorrection60 = Numbers(NumNum);
2215 : }
2216 : //(1.66667 would be a perfect effectiveness, 1.0 would be artificial coil that does only sensible)
2217 81 : if (WarehouseCoil(CoilID).SHRCorrection60 > 1.67) {
2218 0 : WarehouseCoil(CoilID).SHRCorrection60 = 1.67;
2219 0 : ShowWarningError(state,
2220 0 : format("{}{}=\"{}\", {} must be between 1 and 1.67, 1.67 will be used.",
2221 : RoutineName,
2222 : CurrentModuleObject,
2223 0 : WarehouseCoil(CoilID).Name,
2224 : cNumericFieldNames(NumNum)));
2225 : }
2226 81 : if (WarehouseCoil(CoilID).SHRCorrection60 < 1.0) {
2227 0 : WarehouseCoil(CoilID).SHRCorrection60 = 1.0;
2228 0 : ShowWarningError(state,
2229 0 : format("{}{}=\"{}\", {} must be between 1 and 1.67, 1.00 will be used.",
2230 : RoutineName,
2231 : CurrentModuleObject,
2232 0 : WarehouseCoil(CoilID).Name,
2233 : cNumericFieldNames(NumNum)));
2234 : }
2235 81 : } break;
2236 1 : case SHRCorrectionType::European: {
2237 : // WarehouseCoil(CoilID)%SHRCorrectionCurvePtr = CurveManager::GetCurveIndex(state, 'ChillerEuropeanWetCoilFactor')
2238 : // This is a place holder, currently use embedded constants for European ratings, future may want a curve
2239 1 : } break;
2240 0 : case SHRCorrectionType::QuadraticSHR: {
2241 0 : if (lAlphaBlanks(AlphaNum)) {
2242 0 : ShowSevereEmptyField(state, eoh, cAlphaFieldNames(AlphaNum));
2243 0 : ErrorsFound = true;
2244 0 : } else if ((WarehouseCoil(CoilID).SHRCorrectionCurvePtr = Curve::GetCurveIndex(state, Alphas(AlphaNum))) == 0) {
2245 0 : ShowSevereItemNotFound(state, eoh, cAlphaFieldNames(AlphaNum), Alphas(AlphaNum));
2246 0 : ErrorsFound = true;
2247 : }
2248 : // error checks for curve type entered and curve name
2249 0 : ErrorsFound |= Curve::CheckCurveDims(state,
2250 0 : WarehouseCoil(CoilID).SHRCorrectionCurvePtr, // Curve index
2251 : {1}, // Valid dimensions
2252 : RoutineName, // Routine name
2253 : CurrentModuleObject, // Object Type
2254 0 : WarehouseCoil(CoilID).Name, // Object Name
2255 0 : cAlphaFieldNames(AlphaNum)); // Field Name
2256 0 : } break;
2257 1 : case SHRCorrectionType::TabularRH_DT1_TRoom: {
2258 1 : WarehouseCoil(CoilID).SHRCorrectionCurvePtr = Curve::GetCurveIndex(state, Alphas(AlphaNum)); // convert curve name to number
2259 1 : if (lAlphaBlanks(AlphaNum)) {
2260 0 : ShowSevereError(state,
2261 0 : format("{}{}=\"{}\", invalid {} is blank, required.",
2262 : RoutineName,
2263 : CurrentModuleObject,
2264 0 : WarehouseCoil(CoilID).Name,
2265 : cAlphaFieldNames(AlphaNum)));
2266 0 : ErrorsFound = true;
2267 1 : } else if (WarehouseCoil(CoilID).SHRCorrectionCurvePtr == 0) {
2268 0 : ShowSevereError(state, format("{}{}=\"{}\", invalid ", RoutineName, CurrentModuleObject, WarehouseCoil(CoilID).Name));
2269 0 : ShowContinueError(state, format("...invalid curve {}=\"{}\".", cAlphaFieldNames(AlphaNum), Alphas(AlphaNum)));
2270 0 : ErrorsFound = true;
2271 : }
2272 3 : ErrorsFound |= Curve::CheckCurveDims(state,
2273 1 : WarehouseCoil(CoilID).SHRCorrectionCurvePtr, // Curve index
2274 : {3}, // Valid dimensions
2275 : RoutineName, // Routine name
2276 : CurrentModuleObject, // Object Type
2277 1 : WarehouseCoil(CoilID).Name, // Object Name
2278 1 : cAlphaFieldNames(AlphaNum)); // Field Name
2279 : // IF(WarehouseCoil(CoilID)%SHRCorrectionCurvePtr == 0) THEN
2280 : // CALL ShowSevereError(state, RoutineName//TRIM(CurrentModuleObject)//'="'//TRIM(WarehouseCoil(CoilID)%Name)//&
2281 : // '", not found '//TRIM(cAlphaFieldNames(AlphaNum)))
2282 : // ErrorsFound = .TRUE.
2283 : // END IF !valid table name
2284 1 : } break;
2285 0 : default:
2286 0 : break;
2287 : } // SHRCorrectionType
2288 :
2289 83 : ++NumNum; // N10
2290 83 : if (!lNumericBlanks(NumNum)) {
2291 83 : WarehouseCoil(CoilID).HeaterPower = Numbers(NumNum);
2292 : } else {
2293 0 : ShowSevereEmptyField(state, eoh, cNumericFieldNames(NumNum));
2294 0 : ErrorsFound = true;
2295 : }
2296 :
2297 83 : ++AlphaNum; // A6
2298 83 : if (lAlphaBlanks(AlphaNum)) {
2299 0 : WarehouseCoil(CoilID).heaterAvailSched = Sched::GetScheduleAlwaysOn(state);
2300 83 : } else if ((WarehouseCoil(CoilID).heaterAvailSched = Sched::GetSchedule(state, Alphas(AlphaNum))) == nullptr) {
2301 0 : ShowSevereItemNotFound(state, eoh, cAlphaFieldNames(AlphaNum), Alphas(AlphaNum));
2302 0 : ErrorsFound = true;
2303 83 : } else if (!WarehouseCoil(CoilID).heaterAvailSched->checkMinMaxVals(state, Clusive::In, 0.0, Clusive::In, 1.0)) {
2304 0 : Sched::ShowSevereBadMinMax(state, eoh, cAlphaFieldNames(AlphaNum), Alphas(AlphaNum), Clusive::In, 0.0, Clusive::In, 1.0);
2305 0 : ErrorsFound = true;
2306 : }
2307 :
2308 : // Input fan control type
2309 83 : ++AlphaNum; // A7
2310 83 : if (lAlphaBlanks(AlphaNum)) {
2311 83 : WarehouseCoil(CoilID).FanType = FanSpeedCtrlType::ConstantSpeed;
2312 0 : } else if ((WarehouseCoil(CoilID).FanType = static_cast<FanSpeedCtrlType>(getEnumValue(fanSpeedCtrlTypeNamesUC, Alphas(AlphaNum)))) ==
2313 : FanSpeedCtrlType::Invalid) {
2314 0 : ShowSevereInvalidKey(state, eoh, cAlphaFieldNames(AlphaNum), Alphas(AlphaNum));
2315 0 : ErrorsFound = true;
2316 : } // fan control type
2317 :
2318 83 : ++NumNum; // N11
2319 83 : if (!lNumericBlanks(NumNum) && Numbers(NumNum) > 0.0) {
2320 83 : WarehouseCoil(CoilID).RatedFanPower = Numbers(NumNum);
2321 : } else {
2322 0 : ShowSevereError(state,
2323 0 : format("{}{}=\"{}\", {} was not input or was less than 0 ",
2324 : RoutineName,
2325 : CurrentModuleObject,
2326 0 : WarehouseCoil(CoilID).Name,
2327 : cNumericFieldNames(NumNum)));
2328 0 : ErrorsFound = true;
2329 : } // coil fan power
2330 :
2331 83 : ++NumNum; // N12
2332 83 : if (!lNumericBlanks(NumNum) && Numbers(NumNum) > 0.0) {
2333 83 : WarehouseCoil(CoilID).RatedAirVolumeFlow = Numbers(NumNum);
2334 : } else {
2335 0 : ShowSevereError(state,
2336 0 : format("{}{}=\"{}\", {} is required and was not input or was less than 0 ",
2337 : RoutineName,
2338 : CurrentModuleObject,
2339 0 : WarehouseCoil(CoilID).Name,
2340 : cNumericFieldNames(NumNum)));
2341 : } // air volume flow
2342 :
2343 83 : ++NumNum; // N13
2344 83 : WarehouseCoil(CoilID).FanMinAirFlowRatio = 0.2; // default value
2345 83 : if (!lNumericBlanks(NumNum) && Numbers(NumNum) > 0.0) {
2346 0 : WarehouseCoil(CoilID).FanMinAirFlowRatio = Numbers(NumNum);
2347 : }
2348 :
2349 : // Input defrost type
2350 83 : ++AlphaNum; // A8
2351 83 : if (lAlphaBlanks(AlphaNum)) {
2352 0 : WarehouseCoil(CoilID).defrostType = DefrostType::Elec;
2353 83 : } else if ((WarehouseCoil(CoilID).defrostType = static_cast<DefrostType>(getEnumValue(defrostTypeNamesUC, Alphas(AlphaNum)))) ==
2354 : DefrostType::Invalid) {
2355 0 : ShowSevereInvalidKey(state, eoh, cAlphaFieldNames(AlphaNum), Alphas(AlphaNum));
2356 0 : ErrorsFound = true;
2357 : } // defrost type
2358 :
2359 83 : ++AlphaNum; // A9
2360 83 : if (lAlphaBlanks(AlphaNum)) {
2361 16 : WarehouseCoil(CoilID).DefrostControlType = DefrostCtrlType::Sched;
2362 134 : } else if ((WarehouseCoil(CoilID).DefrostControlType =
2363 67 : static_cast<DefrostCtrlType>(getEnumValue(defrostCtrlTypeNamesUC, Alphas(AlphaNum)))) == DefrostCtrlType::Invalid) {
2364 0 : ShowSevereInvalidKey(state, eoh, cAlphaFieldNames(AlphaNum), Alphas(AlphaNum));
2365 0 : ErrorsFound = true;
2366 : } // defrost control type
2367 :
2368 : // convert defrost schedule name to pointer
2369 83 : ++AlphaNum; // A10
2370 83 : if (lAlphaBlanks(AlphaNum)) {
2371 0 : ShowSevereEmptyField(state, eoh, cAlphaFieldNames(AlphaNum));
2372 0 : ErrorsFound = true;
2373 83 : } else if ((WarehouseCoil(CoilID).defrostSched = Sched::GetSchedule(state, Alphas(AlphaNum))) == nullptr) {
2374 0 : ShowSevereItemNotFound(state, eoh, cAlphaFieldNames(AlphaNum), Alphas(AlphaNum));
2375 0 : ErrorsFound = true;
2376 83 : } else if (!WarehouseCoil(CoilID).defrostSched->checkMinMaxVals(state, Clusive::In, 0.0, Clusive::In, 1.0)) {
2377 0 : Sched::ShowSevereBadMinMax(state, eoh, cAlphaFieldNames(AlphaNum), Alphas(AlphaNum), Clusive::In, 0.0, Clusive::In, 1.0);
2378 0 : ErrorsFound = true;
2379 : } // check for valid schedule name
2380 :
2381 : // convert defrost drip-down schedule name to pointer
2382 : // some defrost types do not use drip-down schedules, use same defrost schedule pointer in that case
2383 83 : ++AlphaNum; // A11
2384 83 : if (lAlphaBlanks(AlphaNum)) {
2385 0 : WarehouseCoil(CoilID).defrostDripDownSched = WarehouseCoil(CoilID).defrostSched;
2386 83 : } else if ((WarehouseCoil(CoilID).defrostDripDownSched = Sched::GetSchedule(state, Alphas(AlphaNum))) == nullptr) {
2387 0 : ShowSevereItemNotFound(state, eoh, cAlphaFieldNames(AlphaNum), Alphas(AlphaNum));
2388 0 : ErrorsFound = true;
2389 83 : } else if (!WarehouseCoil(CoilID).defrostDripDownSched->checkMinMaxVals(state, Clusive::In, 0.0, Clusive::In, 1.0)) {
2390 0 : Sched::ShowSevereBadMinMax(state, eoh, cAlphaFieldNames(AlphaNum), Alphas(AlphaNum), Clusive::In, 0.0, Clusive::In, 1.0);
2391 0 : ErrorsFound = true;
2392 : } // check for valid schedule name
2393 :
2394 83 : ++NumNum; // N14
2395 83 : if (WarehouseCoil(CoilID).defrostType == DefrostType::OffCycle || WarehouseCoil(CoilID).defrostType == DefrostType::None) {
2396 0 : WarehouseCoil(CoilID).DefrostCapacity = 0.0;
2397 : // Don't even need to read Defrost capacity for those two defrost types.
2398 : } else { // have electric or hot gas/brine defrost
2399 83 : if ((lNumericBlanks(NumNum)) || (Numbers(NumNum) <= 0.0)) {
2400 0 : ShowSevereError(state,
2401 0 : format("{}{}=\"{}\", {} must be input and greater than or equal to 0 W for {} {}",
2402 : RoutineName,
2403 : CurrentModuleObject,
2404 0 : WarehouseCoil(CoilID).Name,
2405 : cNumericFieldNames(NumNum),
2406 : cAlphaFieldNames(AlphaNum),
2407 : Alphas(AlphaNum)));
2408 0 : ErrorsFound = true;
2409 : } else {
2410 83 : WarehouseCoil(CoilID).DefrostCapacity = Numbers(NumNum);
2411 : } // Blank or negative Defrost Capacity
2412 :
2413 : // defaults for defrost energy fraction are 0.7 for elec defrost and 0.3 for warm fluid
2414 : // note this value is only used for temperature terminated defrost control type
2415 83 : if (WarehouseCoil(CoilID).defrostType == DefrostType::Elec) {
2416 82 : WarehouseCoil(CoilID).DefEnergyFraction = 0.7;
2417 : }
2418 83 : if (WarehouseCoil(CoilID).defrostType == DefrostType::Fluid) {
2419 1 : WarehouseCoil(CoilID).DefEnergyFraction = 0.3;
2420 : }
2421 :
2422 83 : ++NumNum; // N15
2423 83 : if (!lNumericBlanks(NumNum)) {
2424 1 : if ((Numbers(NumNum) > 1.0) || (Numbers(NumNum) < 0.0)) {
2425 0 : ShowWarningError(state,
2426 0 : format("{}{}=\"{}\", {} must be between 0 and 1, default values will be used.",
2427 : RoutineName,
2428 : CurrentModuleObject,
2429 0 : WarehouseCoil(CoilID).Name,
2430 : cNumericFieldNames(NumNum)));
2431 : } else {
2432 1 : WarehouseCoil(CoilID).DefEnergyFraction = Numbers(NumNum);
2433 : } // number out of range
2434 : } // lnumericblanks
2435 : } // defrost type
2436 :
2437 83 : ++AlphaNum; // A12
2438 83 : if (lAlphaBlanks(AlphaNum)) {
2439 83 : WarehouseCoil(CoilID).VerticalLocation = VerticalLoc::Middle; // default position
2440 0 : } else if ((WarehouseCoil(CoilID).VerticalLocation = static_cast<VerticalLoc>(getEnumValue(verticalLocNamesUC, Alphas(AlphaNum)))) ==
2441 : VerticalLoc::Invalid) {
2442 0 : ShowSevereInvalidKey(state, eoh, cAlphaFieldNames(AlphaNum), Alphas(AlphaNum));
2443 0 : ErrorsFound = true;
2444 : } // Vertical location class
2445 :
2446 83 : ++NumNum; // N16
2447 83 : WarehouseCoil(CoilID).DesignRefrigInventory = 0.0;
2448 83 : if (!lNumericBlanks(NumNum)) {
2449 0 : WarehouseCoil(CoilID).DesignRefrigInventory = Numbers(NumNum);
2450 : }
2451 : } // NumRefrigAirChillers
2452 : } // NumRefrigerationAirChillers > 0
2453 :
2454 : //************ START Warehouse Coil SET INPUT **************
2455 : // One Set allowed per zone, but indiv coils within zone can be served by different compressor/condenser systems
2456 :
2457 801 : if (state.dataRefrigCase->NumRefrigChillerSets > 0) {
2458 :
2459 1 : state.dataRefrigCase->CheckChillerSetName.dimension(state.dataRefrigCase->NumRefrigChillerSets, true);
2460 :
2461 1 : CurrentModuleObject = "ZoneHVAC:RefrigerationChillerSet";
2462 11 : for (int SetID = 1; SetID <= state.dataRefrigCase->NumRefrigChillerSets; ++SetID) {
2463 10 : state.dataInputProcessing->inputProcessor->getObjectItem(state,
2464 : CurrentModuleObject,
2465 : SetID,
2466 : Alphas,
2467 : NumAlphas,
2468 : Numbers,
2469 : NumNumbers,
2470 : IOStatus,
2471 : lNumericBlanks,
2472 : lAlphaBlanks,
2473 : cAlphaFieldNames,
2474 : cNumericFieldNames);
2475 :
2476 10 : ErrorObjectHeader eoh{routineName, CurrentModuleObject, Alphas(1)};
2477 :
2478 10 : AlphaNum = 1;
2479 10 : Util::IsNameEmpty(state, Alphas(1), CurrentModuleObject, ErrorsFound);
2480 :
2481 10 : AirChillerSet(SetID).Name = Alphas(AlphaNum);
2482 :
2483 10 : AlphaNum = 2;
2484 10 : if (lAlphaBlanks(AlphaNum)) {
2485 10 : AirChillerSet(SetID).availSched = Sched::GetScheduleAlwaysOn(state);
2486 0 : } else if ((AirChillerSet(SetID).availSched = Sched::GetSchedule(state, Alphas(AlphaNum))) == nullptr) {
2487 0 : ShowSevereItemNotFound(state, eoh, cAlphaFieldNames(AlphaNum), Alphas(AlphaNum));
2488 0 : ErrorsFound = true;
2489 0 : } else if (!AirChillerSet(SetID).availSched->checkMinMaxVals(state, Clusive::In, 0.0, Clusive::In, 1.0)) {
2490 0 : Sched::ShowSevereBadMinMax(state, eoh, cAlphaFieldNames(AlphaNum), Alphas(AlphaNum), Clusive::In, 0.0, Clusive::In, 1.0);
2491 0 : ErrorsFound = true;
2492 : }
2493 :
2494 10 : ++AlphaNum;
2495 10 : AirChillerSet(SetID).ZoneName = Alphas(AlphaNum);
2496 10 : AirChillerSet(SetID).ZoneNum = Util::FindItemInList(Alphas(AlphaNum), state.dataHeatBal->Zone);
2497 :
2498 10 : if (AirChillerSet(SetID).ZoneNum == 0) {
2499 0 : ShowSevereError(state,
2500 0 : format("{}{}=\"{}\", invalid {} not valid: {}",
2501 : RoutineName,
2502 : CurrentModuleObject,
2503 0 : AirChillerSet(SetID).Name,
2504 : cAlphaFieldNames(AlphaNum),
2505 : Alphas(AlphaNum)));
2506 0 : ErrorsFound = true;
2507 : }
2508 10 : AirChillerSet(SetID).ZoneNodeNum = DataZoneEquipment::GetSystemNodeNumberForZone(state, AirChillerSet(SetID).ZoneNum);
2509 10 : if (AirChillerSet(SetID).ZoneNodeNum == 0) {
2510 0 : ShowSevereError(state,
2511 0 : format("{}{}=\"{}\" System Node Number not found for {} = {}",
2512 : RoutineName,
2513 : CurrentModuleObject,
2514 0 : AirChillerSet(SetID).Name,
2515 : cAlphaFieldNames(AlphaNum),
2516 : Alphas(AlphaNum)));
2517 0 : ShowContinueError(state,
2518 : ".. Refrigeration chillers must reference a controlled Zone (appear in a ZoneHVAC:EquipmentConnections object.");
2519 0 : ErrorsFound = true;
2520 : }
2521 10 : state.dataRefrigCase->RefrigPresentInZone(AirChillerSet(SetID).ZoneNum) = true;
2522 :
2523 10 : ++AlphaNum;
2524 10 : if (!lAlphaBlanks(AlphaNum)) {
2525 0 : ShowMessage(state,
2526 0 : format("{}{}=\"{}\" {} is not used. This is not an error. Energy is exchanged directly with the zone independent of "
2527 : "any air system. ",
2528 : RoutineName,
2529 : CurrentModuleObject,
2530 0 : AirChillerSet(SetID).Name,
2531 : cAlphaFieldNames(AlphaNum)));
2532 : // Node identification reserved for future use. Currently exchange energy directly with zone outside any air system
2533 : // AirChillerSet(SetID)%NodeNumInlet = &
2534 : // NodeInputManager::GetOnlySingleNode(state, Alphas(AlphaNum),ErrorsFound,TRIM(CurrentModuleObject), &
2535 : // AirChillerSet(SetID)%Name,DataLoopNode::NodeFluidType::Air,DataLoopNode::NodeConnectionType::Inlet,1,DataLoopNode::ObjectIsNotParent)
2536 : }
2537 :
2538 10 : ++AlphaNum;
2539 10 : if (!lAlphaBlanks(AlphaNum)) {
2540 0 : ShowMessage(state,
2541 0 : format("{}{}=\"{}\" {} is not used. This is not an error. Energy is exchanged directly with the zone independent of "
2542 : "any air system. ",
2543 : RoutineName,
2544 : CurrentModuleObject,
2545 0 : AirChillerSet(SetID).Name,
2546 : cAlphaFieldNames(AlphaNum)));
2547 : // Node identification reserved for future use. Currently exchange energy directly with zone outside any air system
2548 : // AirChillerSet(SetID)%NodeNumOutlet = &
2549 : // NodeInputManager::GetOnlySingleNode(state, Alphas(AlphaNum),ErrorsFound,TRIM(CurrentModuleObject), &
2550 : // AirChillerSet(SetID)%Name,DataLoopNode::NodeFluidType::Air,DataLoopNode::NodeConnectionType::Outlet,1,DataLoopNode::ObjectIsNotParent)
2551 : }
2552 :
2553 : // An extensible list is used to enter the individual names of each chiller in the set.
2554 : // These chillers will be dispatched in this list order to meet the required zone load
2555 10 : int NumChillersInSet = NumAlphas - AlphaNum;
2556 10 : int AlphaStartList = AlphaNum; //+ 1
2557 10 : AirChillerSet(SetID).NumCoils = NumChillersInSet;
2558 10 : if (!allocated(AirChillerSet(SetID).CoilNum)) {
2559 10 : AirChillerSet(SetID).CoilNum.allocate(NumChillersInSet);
2560 : }
2561 93 : for (int ChillerIndex = 1; ChillerIndex <= NumChillersInSet; ++ChillerIndex) {
2562 83 : int AlphaListNum = AlphaStartList + ChillerIndex;
2563 83 : if (!lAlphaBlanks(AlphaListNum)) {
2564 83 : int CoilNum = Util::FindItemInList(Alphas(AlphaListNum), WarehouseCoil);
2565 83 : if (CoilNum == 0) {
2566 0 : ShowSevereError(state,
2567 0 : format("{}{}=\"{}\", has an invalid {} defined as {}",
2568 : RoutineName,
2569 : CurrentModuleObject,
2570 0 : AirChillerSet(SetID).Name,
2571 : cAlphaFieldNames(AlphaListNum),
2572 : Alphas(AlphaListNum)));
2573 0 : ErrorsFound = true;
2574 : } // == 0
2575 83 : AirChillerSet(SetID).CoilNum(ChillerIndex) = CoilNum;
2576 83 : WarehouseCoil(CoilNum).ZoneName = AirChillerSet(SetID).ZoneName;
2577 83 : WarehouseCoil(CoilNum).ZoneNum = AirChillerSet(SetID).ZoneNum;
2578 83 : WarehouseCoil(CoilNum).ZoneNodeNum = AirChillerSet(SetID).ZoneNodeNum;
2579 : } // ! = alphablanks
2580 : } // CoilID over NumChillersInSet
2581 : } // NumChillerSets
2582 : } // NumChillerSets > 0
2583 : //************* End Air Chiller Sets
2584 :
2585 : //**** Read CaseAndWalkIn Lists **********************************************************
2586 801 : if (state.dataRefrigCase->NumSimulationCaseAndWalkInLists > 0) {
2587 28 : CurrentModuleObject = "Refrigeration:CaseAndWalkInList";
2588 92 : for (int ListNum = 1; ListNum <= state.dataRefrigCase->NumSimulationCaseAndWalkInLists; ++ListNum) {
2589 64 : state.dataInputProcessing->inputProcessor->getObjectItem(state,
2590 : CurrentModuleObject,
2591 : ListNum,
2592 : Alphas,
2593 : NumAlphas,
2594 : Numbers,
2595 : NumNumbers,
2596 : IOStatus,
2597 : lNumericBlanks,
2598 : lAlphaBlanks,
2599 : cAlphaFieldNames,
2600 : cNumericFieldNames);
2601 64 : Util::IsNameEmpty(state, Alphas(1), CurrentModuleObject, ErrorsFound);
2602 64 : CaseAndWalkInList(ListNum).Name = Alphas(1);
2603 :
2604 : // CaseAndWalkInList alphas include CaseAndWalkInList name and one name for each Case or WalkIn in list
2605 : // below allocates larger than needed (each allocated to sum of both), but avoids two loops through input fields
2606 64 : int NumTotalLoadsOnList = NumAlphas - 1;
2607 64 : if (!allocated(CaseAndWalkInList(ListNum).WalkInItemNum)) {
2608 64 : CaseAndWalkInList(ListNum).WalkInItemNum.allocate(NumTotalLoadsOnList);
2609 : }
2610 64 : if (!allocated(CaseAndWalkInList(ListNum).CaseItemNum)) {
2611 64 : CaseAndWalkInList(ListNum).CaseItemNum.allocate(NumTotalLoadsOnList);
2612 : }
2613 64 : if (!allocated(CaseAndWalkInList(ListNum).CoilItemNum)) {
2614 64 : CaseAndWalkInList(ListNum).CoilItemNum.allocate(NumTotalLoadsOnList);
2615 : }
2616 :
2617 64 : int NumCasesOnList = 0;
2618 64 : int NumCoilsOnList = 0;
2619 64 : int NumWalkInsOnList = 0;
2620 64 : int LoadCount = 0;
2621 315 : for (int NumLoad = 1; NumLoad <= NumTotalLoadsOnList; ++NumLoad) {
2622 251 : int AlphaListNum = 1 + NumLoad;
2623 251 : if (!lAlphaBlanks(AlphaListNum)) {
2624 251 : ++LoadCount;
2625 251 : int LoadWalkInNum = 0;
2626 251 : int LoadCaseNum = 0;
2627 251 : int LoadCoilNum = 0;
2628 251 : if (state.dataRefrigCase->NumSimulationWalkIns > 0) {
2629 106 : LoadWalkInNum = Util::FindItemInList(Alphas(AlphaListNum), WalkIn);
2630 : }
2631 251 : if (state.dataRefrigCase->NumSimulationCases > 0) {
2632 168 : LoadCaseNum = Util::FindItemInList(Alphas(AlphaListNum), RefrigCase);
2633 : }
2634 251 : if (state.dataRefrigCase->NumSimulationRefrigAirChillers > 0) {
2635 83 : LoadCoilNum = Util::FindItemInList(Alphas(AlphaListNum), WarehouseCoil);
2636 : }
2637 251 : if ((LoadWalkInNum == 0) && (LoadCaseNum == 0) && (LoadCoilNum == 0)) {
2638 0 : ShowSevereError(state,
2639 0 : format("{}{}=\"{}\", has an invalid value of {}",
2640 : RoutineName,
2641 : CurrentModuleObject,
2642 : cAlphaFieldNames(AlphaListNum),
2643 : Alphas(AlphaListNum)));
2644 0 : ErrorsFound = true;
2645 251 : } else if ((LoadWalkInNum != 0) && (LoadCaseNum != 0) && (LoadCoilNum != 0)) {
2646 0 : ShowSevereError(state,
2647 0 : format("{}{}=\"{}\", {} Case and WalkIns and Refrigerated Coils cannot have the same name.",
2648 : RoutineName,
2649 : CurrentModuleObject,
2650 : cAlphaFieldNames(AlphaListNum),
2651 : Alphas(AlphaListNum)));
2652 0 : ErrorsFound = true;
2653 251 : } else if (LoadWalkInNum != 0) {
2654 17 : ++NumWalkInsOnList;
2655 17 : CaseAndWalkInList(ListNum).WalkInItemNum(NumWalkInsOnList) = LoadWalkInNum;
2656 234 : } else if (LoadCaseNum != 0) {
2657 151 : ++NumCasesOnList;
2658 151 : CaseAndWalkInList(ListNum).CaseItemNum(NumCasesOnList) = LoadCaseNum;
2659 83 : } else if (LoadCoilNum != 0) {
2660 83 : ++NumCoilsOnList;
2661 83 : CaseAndWalkInList(ListNum).CoilItemNum(NumCoilsOnList) = LoadCoilNum;
2662 : }
2663 : } // lAlphaBlanks
2664 : } // Num Total Loads on List
2665 64 : if (LoadCount == 0) {
2666 0 : ShowSevereError(
2667 : state,
2668 0 : format(
2669 0 : "{}{}, \"{}\" : degenerate list All entries were blank.", RoutineName, CurrentModuleObject, CaseAndWalkInList(ListNum).Name));
2670 0 : ErrorsFound = true;
2671 : } // loadcount == 0
2672 64 : CaseAndWalkInList(ListNum).NumCases = NumCasesOnList;
2673 64 : CaseAndWalkInList(ListNum).NumCoils = NumCoilsOnList;
2674 64 : CaseAndWalkInList(ListNum).NumWalkIns = NumWalkInsOnList;
2675 : } // ListNum=1,NumSimulationCaseAndWalkInLists
2676 : } //(NumSimulationCaseAndWalkInLists > 0)
2677 :
2678 : //**** End read CaseAndWalkIn Lists **********************************************************
2679 :
2680 : //************** Start RefrigerationRacks
2681 :
2682 801 : if (state.dataRefrigCase->NumRefrigeratedRacks > 0) {
2683 :
2684 31 : CurrentModuleObject = "Refrigeration:CompressorRack";
2685 :
2686 92 : for (int RackNum = 1; RackNum <= state.dataRefrigCase->NumRefrigeratedRacks; ++RackNum) {
2687 :
2688 61 : state.dataInputProcessing->inputProcessor->getObjectItem(state,
2689 : CurrentModuleObject,
2690 : RackNum,
2691 : Alphas,
2692 : NumAlphas,
2693 : Numbers,
2694 : NumNumbers,
2695 : IOStatus,
2696 : lNumericBlanks,
2697 : lAlphaBlanks,
2698 : cAlphaFieldNames,
2699 : cNumericFieldNames);
2700 :
2701 61 : ErrorObjectHeader eoh{routineName, CurrentModuleObject, Alphas(1)};
2702 61 : Util::IsNameEmpty(state, Alphas(1), CurrentModuleObject, ErrorsFound);
2703 :
2704 61 : RefrigRack(RackNum).Name = Alphas(1);
2705 61 : RefrigRack(RackNum).MyIdx = RackNum;
2706 61 : state.dataHeatBal->HeatReclaimRefrigeratedRack(RackNum).Name = Alphas(1);
2707 61 : state.dataHeatBal->HeatReclaimRefrigeratedRack(RackNum).SourceType = CurrentModuleObject;
2708 :
2709 61 : if (lAlphaBlanks(2)) {
2710 0 : RefrigRack(RackNum).HeatRejectionLocation = HeatRejLocation::Outdoors;
2711 61 : } else if ((RefrigRack(RackNum).HeatRejectionLocation = static_cast<HeatRejLocation>(getEnumValue(heatRejLocationNamesUC, Alphas(2)))) ==
2712 : HeatRejLocation::Invalid) {
2713 0 : RefrigRack(RackNum).HeatRejectionLocation = HeatRejLocation::Outdoors;
2714 0 : ShowWarningInvalidKey(state, eoh, cAlphaFieldNames(2), Alphas(2), "Outdoors");
2715 : }
2716 :
2717 61 : RefrigRack(RackNum).RatedCOP = Numbers(1);
2718 :
2719 61 : if (RefrigRack(RackNum).RatedCOP <= 0.0) {
2720 0 : ShowSevereError(state,
2721 0 : format("{}{}=\"{}\" {} must be greater than 0.0",
2722 : RoutineName,
2723 : CurrentModuleObject,
2724 0 : RefrigRack(RackNum).Name,
2725 : cNumericFieldNames(1)));
2726 0 : ErrorsFound = true;
2727 : }
2728 :
2729 61 : RefrigRack(RackNum).COPFTempPtr = Curve::GetCurveIndex(state, Alphas(3)); // convert curve name to number
2730 61 : if (RefrigRack(RackNum).COPFTempPtr == 0) {
2731 0 : ShowSevereItemNotFound(state, eoh, cAlphaFieldNames(3), Alphas(3));
2732 0 : ErrorsFound = true;
2733 : }
2734 :
2735 183 : ErrorsFound |= Curve::CheckCurveDims(state,
2736 61 : RefrigRack(RackNum).COPFTempPtr, // Curve index
2737 : {1}, // Valid dimensions
2738 : RoutineName, // Routine name
2739 : CurrentModuleObject, // Object Type
2740 61 : RefrigRack(RackNum).Name, // Object Name
2741 61 : cAlphaFieldNames(3)); // Field Name
2742 :
2743 61 : RefrigRack(RackNum).CondenserFanPower = Numbers(2);
2744 61 : if (Numbers(2) < 0.0) {
2745 0 : ShowSevereError(state,
2746 0 : format("{}{}=\"{}\" {} must be greater than or equal to 0 Watts.",
2747 : RoutineName,
2748 : CurrentModuleObject,
2749 0 : RefrigRack(RackNum).Name,
2750 : cNumericFieldNames(2)));
2751 0 : ErrorsFound = true;
2752 : }
2753 :
2754 61 : RefrigRack(RackNum).TotCondFTempPtr = Curve::GetCurveIndex(state, Alphas(4)); // convert curve name to number
2755 61 : if ((!lAlphaBlanks(4)) && RefrigRack(RackNum).TotCondFTempPtr == 0) {
2756 0 : ShowSevereError(state,
2757 0 : format("{}{}=\"{}\", invalid {} not found:{}",
2758 : RoutineName,
2759 : CurrentModuleObject,
2760 0 : RefrigRack(RackNum).Name,
2761 : cAlphaFieldNames(4),
2762 : Alphas(4)));
2763 0 : ErrorsFound = true;
2764 : }
2765 :
2766 61 : if (!lAlphaBlanks(4)) {
2767 124 : ErrorsFound |= Curve::CheckCurveDims(state,
2768 31 : RefrigRack(RackNum).TotCondFTempPtr, // Curve index
2769 : {1}, // Valid dimensions
2770 : RoutineName, // Routine name
2771 : CurrentModuleObject, // Object Type
2772 31 : RefrigRack(RackNum).Name, // Object Name
2773 31 : cAlphaFieldNames(4)); // Field Name
2774 : }
2775 :
2776 61 : if (lAlphaBlanks(5)) {
2777 0 : RefrigRack(RackNum).CondenserType = DataHeatBalance::RefrigCondenserType::Air;
2778 122 : } else if ((RefrigRack(RackNum).CondenserType = static_cast<DataHeatBalance::RefrigCondenserType>(
2779 61 : getEnumValue(DataHeatBalance::refrigCondenserTypeNamesUC, Alphas(5)))) == DataHeatBalance::RefrigCondenserType::Invalid) {
2780 0 : ShowSevereInvalidKey(state, eoh, cAlphaFieldNames(5), Alphas(5));
2781 0 : ErrorsFound = true;
2782 120 : } else if (RefrigRack(RackNum).CondenserType == DataHeatBalance::RefrigCondenserType::Evap ||
2783 59 : RefrigRack(RackNum).CondenserType == DataHeatBalance::RefrigCondenserType::Water) {
2784 3 : if (RefrigRack(RackNum).HeatRejectionLocation == HeatRejLocation::Zone) {
2785 0 : ShowWarningError(state,
2786 0 : format("{}=\"{}\" {}=\"{}\" not available with {} = Zone.",
2787 : CurrentModuleObject,
2788 0 : RefrigRack(RackNum).Name,
2789 : cAlphaFieldNames(5),
2790 : Alphas(5),
2791 : cAlphaFieldNames(2)));
2792 0 : ShowContinueError(state, format("{} reset to Air Cooled and simulation continues.", cAlphaFieldNames(5)));
2793 0 : RefrigRack(RackNum).CondenserType = DataHeatBalance::RefrigCondenserType::Air;
2794 : }
2795 116 : } else if (RefrigRack(RackNum).CondenserType == DataHeatBalance::RefrigCondenserType::Cascade ||
2796 58 : RefrigRack(RackNum).CondenserType == DataHeatBalance::RefrigCondenserType::WaterHeater) {
2797 0 : ShowSevereInvalidKey(state, eoh, cAlphaFieldNames(5), Alphas(5));
2798 0 : ErrorsFound = true;
2799 : }
2800 : // Get water-cooled condenser input, if applicable
2801 61 : if (RefrigRack(RackNum).CondenserType == DataHeatBalance::RefrigCondenserType::Water) {
2802 2 : RefrigRack(RackNum).InletNode = NodeInputManager::GetOnlySingleNode(state,
2803 1 : Alphas(6),
2804 : ErrorsFound,
2805 : DataLoopNode::ConnectionObjectType::RefrigerationCompressorRack,
2806 1 : Alphas(1),
2807 : DataLoopNode::NodeFluidType::Water,
2808 : DataLoopNode::ConnectionType::Inlet,
2809 : NodeInputManager::CompFluidStream::Primary,
2810 : DataLoopNode::ObjectIsNotParent);
2811 2 : RefrigRack(RackNum).OutletNode = NodeInputManager::GetOnlySingleNode(state,
2812 1 : Alphas(7),
2813 : ErrorsFound,
2814 : DataLoopNode::ConnectionObjectType::RefrigerationCompressorRack,
2815 1 : Alphas(1),
2816 : DataLoopNode::NodeFluidType::Water,
2817 : DataLoopNode::ConnectionType::Outlet,
2818 : NodeInputManager::CompFluidStream::Primary,
2819 : DataLoopNode::ObjectIsNotParent);
2820 : // Check node connections
2821 1 : BranchNodeConnections::TestCompSet(state, CurrentModuleObject, Alphas(1), Alphas(6), Alphas(7), "RefrigRack Nodes");
2822 : // Get loop flow type
2823 1 : if ((RefrigRack(RackNum).FlowType = static_cast<CndsrFlowType>(getEnumValue(cndsrFlowTypeNamesUC, Alphas(8)))) ==
2824 : CndsrFlowType::Invalid) {
2825 0 : ShowSevereInvalidKey(state, eoh, cAlphaFieldNames(8), Alphas(8));
2826 0 : ErrorsFound = true;
2827 : }
2828 : // Get outlet temperature schedule for variable flow case
2829 1 : if (RefrigRack(RackNum).FlowType == CndsrFlowType::Variable) {
2830 1 : if (lAlphaBlanks(9)) {
2831 1 : } else if ((RefrigRack(RackNum).outletTempSched = Sched::GetSchedule(state, Alphas(9))) == nullptr) {
2832 0 : ShowSevereItemNotFound(state, eoh, cAlphaFieldNames(9), Alphas(9));
2833 0 : ErrorsFound = true;
2834 : }
2835 : }
2836 :
2837 : // Get volumetric flow rate if applicable
2838 1 : if (RefrigRack(RackNum).FlowType == CndsrFlowType::Constant) {
2839 0 : RefrigRack(RackNum).DesVolFlowRate = Numbers(3);
2840 0 : RefrigRack(RackNum).VolFlowRate = Numbers(3);
2841 : }
2842 : // Get maximum flow rates
2843 1 : RefrigRack(RackNum).VolFlowRateMax = Numbers(4);
2844 :
2845 : // Check constant flow for max violation, if applicable
2846 1 : if (RefrigRack(RackNum).FlowType == CndsrFlowType::Constant && RefrigRack(RackNum).VolFlowRate > Numbers(4)) {
2847 0 : ShowSevereError(state,
2848 0 : format("{}{}=\"{}\" {} > {}.",
2849 : RoutineName,
2850 : CurrentModuleObject,
2851 0 : RefrigRack(RackNum).Name,
2852 : cNumericFieldNames(3),
2853 : cNumericFieldNames(4)));
2854 0 : ShowContinueError(state, "Revise flow rates.");
2855 0 : ErrorsFound = true;
2856 : }
2857 : // Get max/min allowed water temps
2858 1 : RefrigRack(RackNum).OutletTempMax = Numbers(5);
2859 1 : RefrigRack(RackNum).InletTempMin = Numbers(6);
2860 : // set flow request for plant sizing.
2861 1 : PlantUtilities::RegisterPlantCompDesignFlow(state, RefrigRack(RackNum).InletNode, RefrigRack(RackNum).VolFlowRateMax);
2862 : } // Water cooled condenser data
2863 :
2864 : // Get evaporative cooled condenser input
2865 61 : if (lAlphaBlanks(10)) {
2866 1 : } else if ((RefrigRack(RackNum).evapAvailSched = Sched::GetSchedule(state, Alphas(10))) == nullptr) {
2867 0 : ShowSevereItemNotFound(state, eoh, cAlphaFieldNames(10), Alphas(10));
2868 0 : ErrorsFound = true;
2869 1 : } else if (!RefrigRack(RackNum).evapAvailSched->checkMinVal(state, Clusive::In, 0.0)) {
2870 0 : Sched::ShowSevereBadMin(state, eoh, cAlphaFieldNames(10), Alphas(10), Clusive::In, 0.0);
2871 0 : ErrorsFound = true;
2872 : }
2873 :
2874 61 : RefrigRack(RackNum).EvapEffect = Numbers(7);
2875 61 : if (RefrigRack(RackNum).EvapEffect < 0.0 || RefrigRack(RackNum).EvapEffect > 1.0) {
2876 0 : ShowSevereError(state,
2877 0 : format("{}{}=\"{}\" {} cannot be less than zero or greater than 1.0.",
2878 : RoutineName,
2879 : CurrentModuleObject,
2880 0 : RefrigRack(RackNum).Name,
2881 : cNumericFieldNames(7)));
2882 0 : ErrorsFound = true;
2883 : }
2884 :
2885 61 : RefrigRack(RackNum).CondenserAirFlowRate = Numbers(8);
2886 63 : if (RefrigRack(RackNum).CondenserType == DataHeatBalance::RefrigCondenserType::Evap && RefrigRack(RackNum).CondenserAirFlowRate <= 0.0 &&
2887 2 : RefrigRack(RackNum).CondenserAirFlowRate != Constant::AutoCalculate) {
2888 0 : ShowSevereError(state,
2889 0 : format("{}{}=\"{}\", {} cannot be less than or equal to zero.",
2890 : RoutineName,
2891 : CurrentModuleObject,
2892 0 : RefrigRack(RackNum).Name,
2893 : cNumericFieldNames(8)));
2894 0 : ErrorsFound = true;
2895 : }
2896 :
2897 : // Basin heater power as a function of temperature must be greater than or equal to 0
2898 61 : RefrigRack(RackNum).BasinHeaterPowerFTempDiff = Numbers(9);
2899 61 : if (RefrigRack(RackNum).CondenserType == DataHeatBalance::RefrigCondenserType::Evap && Numbers(9) < 0.0) {
2900 0 : ShowSevereError(
2901 0 : state, format("{}{}=\"{}\", {} must be >= 0", RoutineName, CurrentModuleObject, RefrigRack(RackNum).Name, cNumericFieldNames(9)));
2902 0 : ErrorsFound = true;
2903 : }
2904 :
2905 61 : RefrigRack(RackNum).BasinHeaterSetPointTemp = Numbers(10);
2906 63 : if (RefrigRack(RackNum).CondenserType == DataHeatBalance::RefrigCondenserType::Evap &&
2907 2 : RefrigRack(RackNum).BasinHeaterSetPointTemp < 2.0) {
2908 0 : ShowWarningError(state,
2909 0 : format("{}=\"{}\", {} is less than 2 deg C. Freezing could occur.",
2910 : CurrentModuleObject,
2911 0 : RefrigRack(RackNum).Name,
2912 : cNumericFieldNames(10)));
2913 : }
2914 :
2915 61 : RefrigRack(RackNum).EvapPumpPower = Numbers(11);
2916 63 : if (RefrigRack(RackNum).CondenserType == DataHeatBalance::RefrigCondenserType::Evap && RefrigRack(RackNum).EvapPumpPower < 0.0 &&
2917 2 : RefrigRack(RackNum).EvapPumpPower != Constant::AutoCalculate) {
2918 0 : ShowSevereError(state,
2919 0 : format("{}{}=\"{}\", {} cannot be less than zero.",
2920 : RoutineName,
2921 : CurrentModuleObject,
2922 0 : RefrigRack(RackNum).Name,
2923 : cNumericFieldNames(11)));
2924 0 : ErrorsFound = true;
2925 : }
2926 :
2927 : // Get Water System tank connections
2928 61 : RefrigRack(RackNum).SupplyTankName = Alphas(11);
2929 61 : if (lAlphaBlanks(11)) {
2930 60 : RefrigRack(RackNum).EvapWaterSupplyMode = WaterSupply::FromMains;
2931 : } else {
2932 1 : RefrigRack(RackNum).EvapWaterSupplyMode = WaterSupply::FromTank;
2933 2 : WaterManager::SetupTankDemandComponent(state,
2934 1 : RefrigRack(RackNum).Name,
2935 : CurrentModuleObject,
2936 1 : RefrigRack(RackNum).SupplyTankName,
2937 : ErrorsFound,
2938 1 : RefrigRack(RackNum).EvapWaterSupTankID,
2939 1 : RefrigRack(RackNum).EvapWaterTankDemandARRID);
2940 : }
2941 :
2942 : // Check condenser air inlet node connection
2943 61 : if (lAlphaBlanks(12)) {
2944 16 : RefrigRack(RackNum).OutsideAirNodeNum = 0;
2945 : } else {
2946 90 : RefrigRack(RackNum).OutsideAirNodeNum =
2947 90 : NodeInputManager::GetOnlySingleNode(state,
2948 45 : Alphas(12),
2949 : ErrorsFound,
2950 : DataLoopNode::ConnectionObjectType::RefrigerationCompressorRack,
2951 45 : Alphas(1),
2952 : DataLoopNode::NodeFluidType::Air,
2953 : DataLoopNode::ConnectionType::OutsideAirReference,
2954 : NodeInputManager::CompFluidStream::Primary,
2955 : DataLoopNode::ObjectIsParent);
2956 45 : if (!OutAirNodeManager::CheckOutAirNodeNumber(state, RefrigRack(RackNum).OutsideAirNodeNum)) {
2957 0 : ShowSevereError(state,
2958 0 : format("{}{}=\"{}\", {} not found: {}",
2959 : RoutineName,
2960 : CurrentModuleObject,
2961 0 : RefrigRack(RackNum).Name,
2962 : cAlphaFieldNames(12),
2963 : Alphas(12)));
2964 0 : ShowContinueError(state, "...does not appear in an OutdoorAir:NodeList or as an OutdoorAir:Node.");
2965 0 : ErrorsFound = true;
2966 : }
2967 : }
2968 :
2969 61 : if (!lAlphaBlanks(13)) {
2970 36 : RefrigRack(RackNum).EndUseSubcategory = Alphas(13);
2971 : }
2972 :
2973 : // Read all loads on this rack: cases and walk-ins and coils
2974 61 : NumCases = 0;
2975 61 : int NumCoils = 0;
2976 61 : NumWalkIns = 0;
2977 61 : RefrigRack(RackNum).NumCases = 0;
2978 61 : RefrigRack(RackNum).NumCoils = 0;
2979 61 : RefrigRack(RackNum).NumWalkIns = 0;
2980 61 : RefrigRack(RackNum).TotalRackLoad = 0.0;
2981 :
2982 : // Read display case and walkin assignments for this rack
2983 61 : AlphaNum = 14;
2984 61 : if (lAlphaBlanks(AlphaNum)) {
2985 : // No cases or walkins or coils specified, ie, rack has no load
2986 0 : ShowSevereError(state,
2987 0 : format("{}{}=\"{}\" : has no loads, must have at least one of: {}",
2988 : RoutineName,
2989 : CurrentModuleObject,
2990 0 : RefrigRack(RackNum).Name,
2991 : cAlphaFieldNames(14)));
2992 0 : ErrorsFound = true;
2993 : } else { // (.NOT. lAlphaBlanks(AlphaNum))
2994 : // Entry for Alphas(AlphaNum) can be either a Case, WalkIn, Coil, or CaseAndWalkInList name
2995 61 : int CaseAndWalkInListNum = 0;
2996 61 : int CaseNum = 0;
2997 61 : int WalkInNum = 0;
2998 61 : int CoilNum = 0;
2999 61 : if (state.dataRefrigCase->NumSimulationCaseAndWalkInLists > 0) {
3000 41 : CaseAndWalkInListNum = Util::FindItemInList(Alphas(AlphaNum), CaseAndWalkInList);
3001 : }
3002 61 : if (state.dataRefrigCase->NumSimulationCases > 0) {
3003 61 : CaseNum = Util::FindItemInList(Alphas(AlphaNum), RefrigCase);
3004 : }
3005 61 : if (state.dataRefrigCase->NumSimulationWalkIns > 0) {
3006 8 : WalkInNum = Util::FindItemInList(Alphas(AlphaNum), WalkIn);
3007 : }
3008 61 : if (state.dataRefrigCase->NumSimulationRefrigAirChillers > 0) {
3009 0 : CoilNum = Util::FindItemInList(Alphas(AlphaNum), WarehouseCoil);
3010 : }
3011 61 : int NumNameMatches = 0;
3012 61 : if (CaseAndWalkInListNum != 0) {
3013 25 : ++NumNameMatches;
3014 : }
3015 61 : if (CaseNum != 0) {
3016 36 : ++NumNameMatches;
3017 : }
3018 61 : if (WalkInNum != 0) {
3019 0 : ++NumNameMatches;
3020 : }
3021 61 : if (CoilNum != 0) {
3022 0 : ++NumNameMatches;
3023 : }
3024 :
3025 61 : if (NumNameMatches != 1) { // name must uniquely point to a list or a single case or walkin
3026 0 : ErrorsFound = true;
3027 0 : if (NumNameMatches == 0) {
3028 0 : ShowSevereError(state,
3029 0 : format("{}{}=\"{}\" : has an invalid {}: {}",
3030 : RoutineName,
3031 : CurrentModuleObject,
3032 0 : RefrigRack(RackNum).Name,
3033 : cAlphaFieldNames(AlphaNum),
3034 : Alphas(AlphaNum)));
3035 0 : } else if (NumNameMatches > 1) {
3036 0 : ShowSevereError(state,
3037 0 : format("{}{}=\"{}\" : has a non-unique name that could be either a {}: {}",
3038 : RoutineName,
3039 : CurrentModuleObject,
3040 0 : RefrigRack(RackNum).Name,
3041 : cAlphaFieldNames(AlphaNum),
3042 : Alphas(AlphaNum)));
3043 : } // num matches = 0 or > 1
3044 61 : } else if (CaseAndWalkInListNum != 0) { // Name points to a CaseAndWalkInList
3045 25 : NumCoils = CaseAndWalkInList(CaseAndWalkInListNum).NumCoils;
3046 25 : NumCases = CaseAndWalkInList(CaseAndWalkInListNum).NumCases;
3047 25 : NumWalkIns = CaseAndWalkInList(CaseAndWalkInListNum).NumWalkIns;
3048 25 : RefrigRack(RackNum).NumCoils = NumCoils;
3049 25 : RefrigRack(RackNum).NumCases = NumCases;
3050 25 : RefrigRack(RackNum).NumWalkIns = NumWalkIns;
3051 25 : if (!allocated(RefrigRack(RackNum).CoilNum)) {
3052 25 : RefrigRack(RackNum).CoilNum.allocate(NumCoils);
3053 : }
3054 25 : RefrigRack(RackNum).CoilNum({1, NumCoils}) = CaseAndWalkInList(CaseAndWalkInListNum).CoilItemNum({1, NumCoils});
3055 25 : if (!allocated(RefrigRack(RackNum).CaseNum)) {
3056 25 : RefrigRack(RackNum).CaseNum.allocate(NumCases);
3057 : }
3058 25 : RefrigRack(RackNum).CaseNum({1, NumCases}) = CaseAndWalkInList(CaseAndWalkInListNum).CaseItemNum({1, NumCases});
3059 25 : if (!allocated(RefrigRack(RackNum).WalkInNum)) {
3060 25 : RefrigRack(RackNum).WalkInNum.allocate(NumWalkIns);
3061 : }
3062 25 : RefrigRack(RackNum).WalkInNum({1, NumWalkIns}) = CaseAndWalkInList(CaseAndWalkInListNum).WalkInItemNum({1, NumWalkIns});
3063 36 : } else if (CoilNum != 0) { // Name points to a coil
3064 0 : NumCoils = 1;
3065 0 : RefrigRack(RackNum).NumCoils = 1;
3066 0 : if (!allocated(RefrigRack(RackNum).CoilNum)) {
3067 0 : RefrigRack(RackNum).CoilNum.allocate(NumCoils);
3068 : }
3069 0 : RefrigRack(RackNum).CoilNum(NumCoils) = CoilNum;
3070 36 : } else if (CaseNum != 0) { // Name points to a case
3071 36 : NumCases = 1;
3072 36 : RefrigRack(RackNum).NumCases = 1;
3073 36 : if (!allocated(RefrigRack(RackNum).CaseNum)) {
3074 36 : RefrigRack(RackNum).CaseNum.allocate(NumCases);
3075 : }
3076 36 : RefrigRack(RackNum).CaseNum(NumCases) = CaseNum;
3077 0 : } else if (WalkInNum != 0) { // Name points to a walkin
3078 0 : NumWalkIns = 1;
3079 0 : RefrigRack(RackNum).NumWalkIns = 1;
3080 0 : if (!allocated(RefrigRack(RackNum).WalkInNum)) {
3081 0 : RefrigRack(RackNum).WalkInNum.allocate(NumWalkIns);
3082 : }
3083 0 : RefrigRack(RackNum).WalkInNum(NumWalkIns) = WalkInNum;
3084 : } // NumNameMatches /= 1
3085 : } // blank input for loads on rack
3086 :
3087 61 : if (NumCases > 0) {
3088 153 : for (int caseIndex = 1; caseIndex <= NumCases; ++caseIndex) {
3089 92 : int caseID = RefrigRack(RackNum).CaseNum(caseIndex);
3090 : // mark all cases on rack as used by this system (checking for unused or non-unique cases)
3091 92 : ++RefrigCase(caseID).NumSysAttach;
3092 : // determine total capacity on rack
3093 92 : RefrigRack(RackNum).TotalRackLoad += RefrigCase(caseID).DesignRatedCap;
3094 : } // CaseIndex=1,NumCases
3095 : // check that all refrigerated cases attached to a rack are to the same zone if heat rejection location is "Zone"
3096 : // however, won't matter if walk-in specified
3097 88 : if (RefrigRack(RackNum).HeatRejectionLocation == HeatRejLocation::Zone && RefrigRack(RackNum).NumCases > 1 &&
3098 88 : RefrigCase(RefrigRack(RackNum).CaseNum(1)).ActualZoneNum != 0 && NumWalkIns < 1 && NumCoils < 1) {
3099 0 : int ZoneNum = RefrigCase(RefrigRack(RackNum).CaseNum(1)).ActualZoneNum;
3100 0 : for (int caseIndex = 2; caseIndex <= RefrigRack(RackNum).NumCases; ++caseIndex) {
3101 0 : if (RefrigCase(RefrigRack(RackNum).CaseNum(caseIndex)).ActualZoneNum == ZoneNum) {
3102 0 : continue;
3103 : }
3104 0 : ShowSevereError(state,
3105 0 : format(R"({}{}="{}" : All cases attached to a rack must be in the same zone when {} equals "Zone".)",
3106 : RoutineName,
3107 : CurrentModuleObject,
3108 0 : RefrigRack(RackNum).Name,
3109 : cAlphaFieldNames(2)));
3110 0 : ErrorsFound = true;
3111 0 : break;
3112 : }
3113 : } // heat rejection location is zone
3114 : } // numcases > 0
3115 :
3116 61 : if (NumCoils > 0) {
3117 0 : RefrigRack(RackNum).CoilFlag = true;
3118 0 : for (int CoilIndex = 1; CoilIndex <= NumCoils; ++CoilIndex) {
3119 0 : int CoilNum = RefrigRack(RackNum).CoilNum(CoilIndex);
3120 : // mark all Coils on rack as used by this system (checking for unused or non-unique Coils)
3121 0 : ++WarehouseCoil(CoilNum).NumSysAttach;
3122 : // determine total capacity on rack
3123 0 : RefrigRack(RackNum).TotalRackLoad += WarehouseCoil(CoilNum).RatedSensibleCap;
3124 : } // CoilIndex=1,NumCoils
3125 : } // numcoils > 0
3126 :
3127 61 : if (NumWalkIns > 0) {
3128 0 : for (int WalkInIndex = 1; WalkInIndex <= NumWalkIns; ++WalkInIndex) {
3129 0 : int WalkInID = RefrigRack(RackNum).WalkInNum(WalkInIndex);
3130 : // mark all WalkIns on rack as used by this system (checking for unused or non-unique WalkIns)
3131 0 : ++WalkIn(WalkInID).NumSysAttach;
3132 : // determine total capacity on rack
3133 0 : RefrigRack(RackNum).TotalRackLoad += WalkIn(WalkInID).DesignRatedCap;
3134 : } // WalkInIndex=1,NumWalkIns
3135 : } // NumWalkins
3136 :
3137 61 : if (NumWalkIns > 0 || NumCoils > 0) {
3138 : // Get the heat rejection Zone node number from the zone name entered by the user (if heatrej location = zone)
3139 0 : if (RefrigRack(RackNum).HeatRejectionLocation == HeatRejLocation::Zone) {
3140 0 : if (lAlphaBlanks(15)) {
3141 0 : ShowSevereError(
3142 : state,
3143 0 : format("{}{}=\"{}{} must be input if walkins or AirChillers connected to rack and heat rejection location = zone.",
3144 : RoutineName,
3145 : CurrentModuleObject,
3146 0 : RefrigRack(RackNum).Name,
3147 : cAlphaFieldNames(15)));
3148 0 : ErrorsFound = true;
3149 : } else { // alpha (15) not blank
3150 0 : RefrigRack(RackNum).HeatRejectionZoneNum = Util::FindItemInList(Alphas(15), state.dataHeatBal->Zone);
3151 0 : RefrigRack(RackNum).HeatRejectionZoneNodeNum =
3152 0 : DataZoneEquipment::GetSystemNodeNumberForZone(state, RefrigRack(RackNum).HeatRejectionZoneNum);
3153 0 : if (RefrigRack(RackNum).HeatRejectionZoneNum == 0) {
3154 0 : ShowSevereError(state,
3155 0 : format("{}{}=\"{}\", invalid {} not valid: {}",
3156 : RoutineName,
3157 : CurrentModuleObject,
3158 0 : RefrigRack(RackNum).Name,
3159 : cAlphaFieldNames(15),
3160 : Alphas(15)));
3161 0 : ErrorsFound = true;
3162 : } else {
3163 0 : state.dataRefrigCase->RefrigPresentInZone(RefrigRack(RackNum).HeatRejectionZoneNum) = true;
3164 : } // zonenum == 0
3165 : } // alpha 15 blank
3166 : } // zone heat rej and walk-ins or coils present, must input heat rejection zone
3167 : } // numwalkins or coils > 0
3168 :
3169 : // set condenser air flow and evap water pump power if autocalculated
3170 : // autocalculate condenser evap water pump if needed
3171 63 : if (RefrigRack(RackNum).CondenserType == DataHeatBalance::RefrigCondenserType::Evap &&
3172 2 : RefrigRack(RackNum).EvapPumpPower == Constant::AutoCalculate) {
3173 2 : RefrigRack(RackNum).EvapPumpPower = CondPumpRatePower * RefrigRack(RackNum).TotalRackLoad;
3174 : }
3175 : // autocalculate evap condenser air volume flow rate if needed
3176 63 : if (RefrigRack(RackNum).CondenserType == DataHeatBalance::RefrigCondenserType::Evap &&
3177 2 : RefrigRack(RackNum).CondenserAirFlowRate == Constant::AutoCalculate) {
3178 2 : RefrigRack(RackNum).CondenserAirFlowRate = AirVolRateEvapCond * RefrigRack(RackNum).TotalRackLoad;
3179 : }
3180 :
3181 : } // RackNum=1,NumRefrigeratedRacks
3182 :
3183 31 : state.dataRefrigCase->CheckEquipNameRackWaterCondenser.dimension(state.dataRefrigCase->NumRefrigeratedRacks, true);
3184 : } //(NumRefrigeratedRacks > 0)
3185 :
3186 801 : if (state.dataRefrigCase->NumRefrigSystems > 0 || state.dataRefrigCase->NumTransRefrigSystems > 0) {
3187 :
3188 16 : if (state.dataRefrigCase->NumRefrigSystems > 0 && state.dataRefrigCase->NumRefrigCondensers == 0) {
3189 0 : ShowSevereError(state,
3190 : "Refrigeration:System objects were found during input processing, however no Refrigeration condenser objects (which "
3191 : "may be either: ");
3192 0 : ShowContinueError(state,
3193 : " Refrigeration:Condenser:AirCooled, Refrigeration:Condenser:WaterCooled, "
3194 : "Refrigeration:Condenser:EvaporativeCooled,or Refrigeration:Condenser:CascadeCooled) were found.");
3195 0 : ErrorsFound = true;
3196 : }
3197 16 : if (state.dataRefrigCase->NumTransRefrigSystems > 0 && state.dataRefrigCase->NumSimulationGasCooler == 0) {
3198 0 : ShowSevereError(state,
3199 : "Refrigeration:TranscriticalSystem objects were found during input processing, however no Refrigeration gas cooler "
3200 : "objects (Refrigeration:GasCooler:AirCooled) were found.");
3201 0 : ErrorsFound = true;
3202 : }
3203 16 : if (state.dataRefrigCase->NumSimulationCompressors == 0) {
3204 0 : ShowSevereError(
3205 : state, "Refrigeration:System objects were found during input processing, however no Refrigeration:Compressor objects were found.");
3206 0 : ErrorsFound = true;
3207 : }
3208 :
3209 : //************ START CONDENSER INPUT **************
3210 :
3211 16 : if (state.dataRefrigCase->NumSimulationCondAir > 0) {
3212 13 : CurrentModuleObject = "Refrigeration:Condenser:AirCooled";
3213 47 : for (int CondNum = 1; CondNum <= state.dataRefrigCase->NumSimulationCondAir; ++CondNum) {
3214 34 : state.dataInputProcessing->inputProcessor->getObjectItem(state,
3215 : CurrentModuleObject,
3216 : CondNum,
3217 : Alphas,
3218 : NumAlphas,
3219 : Numbers,
3220 : NumNumbers,
3221 : IOStatus,
3222 : lNumericBlanks,
3223 : lAlphaBlanks,
3224 : cAlphaFieldNames,
3225 : cNumericFieldNames);
3226 :
3227 34 : ErrorObjectHeader eoh{routineName, CurrentModuleObject, Alphas(1)};
3228 :
3229 34 : GlobalNames::VerifyUniqueInterObjectName(
3230 68 : state, state.dataRefrigCase->UniqueCondenserNames, Alphas(1), CurrentModuleObject, cAlphaFieldNames(1), ErrorsFound);
3231 34 : Condenser(CondNum).Name = Alphas(1);
3232 34 : state.dataHeatBal->HeatReclaimRefrigCondenser(CondNum).Name = Alphas(1);
3233 34 : Condenser(CondNum).CapCurvePtr = Curve::GetCurveIndex(state, Alphas(2)); // convert curve name to number
3234 34 : if (Condenser(CondNum).CapCurvePtr == 0) {
3235 0 : ShowSevereError(state,
3236 0 : format("{}{}=\"{}\", invalid {} not found:{}",
3237 : RoutineName,
3238 : CurrentModuleObject,
3239 0 : Condenser(CondNum).Name,
3240 : cAlphaFieldNames(2),
3241 : Alphas(2)));
3242 0 : ErrorsFound = true;
3243 : }
3244 :
3245 : // set start of count for number of systems attached to this condenser
3246 34 : Condenser(CondNum).NumSysAttach = 0;
3247 34 : if (!allocated(Condenser(CondNum).SysNum)) {
3248 34 : Condenser(CondNum).SysNum.allocate(state.dataRefrigCase->NumRefrigSystems);
3249 : }
3250 :
3251 : // set CondenserType and rated temperature difference (51.7 - 35)C per ARI 460
3252 34 : Condenser(CondNum).CondenserType = DataHeatBalance::RefrigCondenserType::Air;
3253 34 : state.dataHeatBal->HeatReclaimRefrigCondenser(CondNum).SourceType = CurrentModuleObject;
3254 34 : Condenser(CondNum).RatedDelT = CondARI460DelT; //= 16.7d0 ,Rated sat cond temp - dry bulb air T for air-cooled Condensers, ARI460
3255 34 : Condenser(CondNum).RatedTCondense = CondARI460Tcond;
3256 34 : if (Condenser(CondNum).CapCurvePtr > 0) {
3257 34 : Condenser(CondNum).RatedCapacity = Curve::CurveValue(state, Condenser(CondNum).CapCurvePtr, CondARI460DelT);
3258 : }
3259 : // elevation capacity correction on air-cooled condensers, Carrier correlation more conservative than Trane
3260 34 : Condenser(CondNum).RatedCapacity *= (1.0 - 7.17e-5 * state.dataEnvrn->Elevation);
3261 34 : if (Condenser(CondNum).RatedCapacity > 0.0) {
3262 34 : Curve::GetCurveMinMaxValues(state, Condenser(CondNum).CapCurvePtr, DelTempMin, DelTempMax);
3263 34 : Real64 Capmin = Curve::CurveValue(state, Condenser(CondNum).CapCurvePtr, DelTempMin) *
3264 34 : (1.0 - 7.17e-5 * state.dataEnvrn->Elevation); // Mar 2011 bug fix
3265 34 : Real64 Capmax = Curve::CurveValue(state, Condenser(CondNum).CapCurvePtr, DelTempMax) *
3266 34 : (1.0 - 7.17e-5 * state.dataEnvrn->Elevation); // Mar 2011 bug
3267 68 : Condenser(CondNum).TempSlope =
3268 34 : (DelTempMax - DelTempMin) / ((Capmax - Capmin)); // * ( 1.0 - 7.17e-5 * Elevation ) ) //Mar 2011 bug fix
3269 34 : Condenser(CondNum).MinCondLoad = Capmax - DelTempMax / Condenser(CondNum).TempSlope;
3270 : } else {
3271 0 : ShowSevereError(state,
3272 0 : format("{}{}=\"{}\" Condenser capacity curve per ARI 460 must be input and must be greater than 0 Watts at "
3273 : "16.7C temperature difference.",
3274 : RoutineName,
3275 : CurrentModuleObject,
3276 0 : Condenser(CondNum).Name));
3277 0 : ErrorsFound = true;
3278 : }
3279 :
3280 34 : Condenser(CondNum).RatedSubcool = 0.0; // default value
3281 34 : if (!lNumericBlanks(1)) {
3282 34 : Condenser(CondNum).RatedSubcool = Numbers(1);
3283 : }
3284 :
3285 : // Get fan control type
3286 34 : if (lAlphaBlanks(3)) {
3287 0 : Condenser(CondNum).FanSpeedControlType = FanSpeedCtrlType::ConstantSpeed; // default
3288 68 : } else if ((Condenser(CondNum).FanSpeedControlType =
3289 34 : static_cast<FanSpeedCtrlType>(getEnumValue(fanSpeedCtrlTypeNamesUC, Alphas(3)))) == FanSpeedCtrlType::Invalid) {
3290 0 : ShowSevereInvalidKey(state, eoh, cAlphaFieldNames(3), Alphas(3));
3291 0 : ErrorsFound = true;
3292 : } // Set fan control type
3293 :
3294 34 : if (!lNumericBlanks(2)) {
3295 34 : Condenser(CondNum).RatedFanPower = Numbers(2);
3296 : }
3297 34 : if ((lNumericBlanks(2)) || (Numbers(2) < 0.0)) {
3298 0 : ShowSevereError(state,
3299 0 : format("{}{}=\"{}\" {} must be input greater than or equal to 0 Watts.",
3300 : RoutineName,
3301 : CurrentModuleObject,
3302 0 : Condenser(CondNum).Name,
3303 : cNumericFieldNames(2)));
3304 0 : ErrorsFound = true;
3305 : }
3306 :
3307 34 : Condenser(CondNum).FanMinAirFlowRatio = 0.2; // default value
3308 34 : if (!lNumericBlanks(3)) {
3309 24 : Condenser(CondNum).FanMinAirFlowRatio = Numbers(3);
3310 : }
3311 :
3312 : // Check condenser air inlet node connection
3313 : // Jan 2011 - added ability to reject heat to a zone from air-cooled condenser
3314 34 : Condenser(CondNum).CondenserRejectHeatToZone = false;
3315 34 : if (lAlphaBlanks(4)) {
3316 0 : Condenser(CondNum).InletAirNodeNum = 0;
3317 : } else { // see if it's an outside air node name or an indoor zone name,
3318 : // have to check inside first because outside check automatically generates an error message
3319 34 : Condenser(CondNum).InletAirZoneNum = Util::FindItemInList(Alphas(4), state.dataHeatBal->Zone);
3320 : // need to clearly id node number for air inlet conditions and zone number for casecredit assignment
3321 34 : if (Condenser(CondNum).InletAirZoneNum != 0) {
3322 : // set condenser flag (later used to set system flag) and zone flag
3323 3 : Condenser(CondNum).InletAirNodeNum = DataZoneEquipment::GetSystemNodeNumberForZone(state, Condenser(CondNum).InletAirZoneNum);
3324 3 : Condenser(CondNum).CondenserRejectHeatToZone = true;
3325 3 : state.dataRefrigCase->RefrigPresentInZone(Condenser(CondNum).InletAirZoneNum) = true;
3326 : } else { // not in a conditioned zone, so see if it's outside
3327 62 : Condenser(CondNum).InletAirNodeNum =
3328 62 : NodeInputManager::GetOnlySingleNode(state,
3329 31 : Alphas(4),
3330 : ErrorsFound,
3331 : DataLoopNode::ConnectionObjectType::RefrigerationCondenserAirCooled,
3332 31 : Alphas(1),
3333 : DataLoopNode::NodeFluidType::Air,
3334 : DataLoopNode::ConnectionType::OutsideAirReference,
3335 : NodeInputManager::CompFluidStream::Primary,
3336 : DataLoopNode::ObjectIsParent);
3337 31 : if (!OutAirNodeManager::CheckOutAirNodeNumber(state, Condenser(CondNum).InletAirNodeNum)) {
3338 : // not outside and not a zone
3339 0 : ShowSevereError(state,
3340 0 : format("{}{}=\"{}\", {} not found: {}",
3341 : RoutineName,
3342 : CurrentModuleObject,
3343 0 : Condenser(CondNum).Name,
3344 : cAlphaFieldNames(4),
3345 : Alphas(4)));
3346 0 : ShowContinueError(state, "...does not appear in an OutdoorAir:NodeList or as an OutdoorAir:Node or as a Zone.");
3347 0 : ErrorsFound = true;
3348 : } // checkoutairnodenumber
3349 : } // InletAirZoneNum \=0
3350 : } // Condenser air inlet node connection
3351 :
3352 34 : Condenser(CondNum).EndUseSubcategory = "";
3353 34 : if (!lAlphaBlanks(5)) {
3354 28 : Condenser(CondNum).EndUseSubcategory = Alphas(5);
3355 : }
3356 :
3357 34 : Condenser(CondNum).RefOpCharge = 0.0;
3358 34 : Condenser(CondNum).RefReceiverInventory = 0.0;
3359 34 : Condenser(CondNum).RefPipingInventory = 0.0;
3360 34 : if (!lNumericBlanks(4)) {
3361 0 : Condenser(CondNum).RefOpCharge = Numbers(4);
3362 : }
3363 34 : if (!lNumericBlanks(5)) {
3364 0 : Condenser(CondNum).RefReceiverInventory = Numbers(5);
3365 : }
3366 34 : if (!lNumericBlanks(6)) {
3367 0 : Condenser(CondNum).RefPipingInventory = Numbers(6);
3368 : }
3369 :
3370 : } // Read input for REFRIGERATION:Condenser:AirCooled
3371 : } // NumSimulationCondAir > 0
3372 :
3373 16 : if (state.dataRefrigCase->NumSimulationCondEvap > 0) {
3374 2 : CurrentModuleObject = "Refrigeration:Condenser:EvaporativeCooled";
3375 5 : for (int CondIndex = 1; CondIndex <= state.dataRefrigCase->NumSimulationCondEvap; ++CondIndex) {
3376 3 : int CondNum = CondIndex + state.dataRefrigCase->NumSimulationCondAir;
3377 3 : state.dataInputProcessing->inputProcessor->getObjectItem(state,
3378 : CurrentModuleObject,
3379 : CondIndex,
3380 : Alphas,
3381 : NumAlphas,
3382 : Numbers,
3383 : NumNumbers,
3384 : IOStatus,
3385 : lNumericBlanks,
3386 : lAlphaBlanks,
3387 : cAlphaFieldNames,
3388 : cNumericFieldNames);
3389 :
3390 3 : ErrorObjectHeader eoh{routineName, CurrentModuleObject, Alphas(1)};
3391 :
3392 3 : GlobalNames::VerifyUniqueInterObjectName(
3393 6 : state, state.dataRefrigCase->UniqueCondenserNames, Alphas(1), CurrentModuleObject, cAlphaFieldNames(1), ErrorsFound);
3394 3 : Condenser(CondNum).Name = Alphas(1);
3395 3 : state.dataHeatBal->HeatReclaimRefrigCondenser(CondNum).Name = Alphas(1);
3396 :
3397 : // set start of count for number of systems attached to this condenser
3398 3 : Condenser(CondNum).NumSysAttach = 0;
3399 3 : if (!allocated(Condenser(CondNum).SysNum)) {
3400 3 : Condenser(CondNum).SysNum.allocate(state.dataRefrigCase->NumRefrigSystems);
3401 : }
3402 :
3403 : // set CondenserType and rated Heat Rejection per ARI 490 rating
3404 3 : Condenser(CondNum).CondenserType = DataHeatBalance::RefrigCondenserType::Evap;
3405 3 : state.dataHeatBal->HeatReclaimRefrigCondenser(CondNum).SourceType = CurrentModuleObject;
3406 3 : Condenser(CondNum).RatedTCondense = CondARI490Tcond;
3407 3 : Condenser(CondNum).RatedDelT = CondARI490DelT;
3408 :
3409 3 : if ((!lNumericBlanks(1)) && (Numbers(1) > 0.0)) {
3410 3 : Condenser(CondNum).RatedCapacity = Numbers(1);
3411 : } else {
3412 0 : ShowSevereError(state,
3413 0 : format("{}{}=\"{}\" {} per ARI 490 must be input and must be greater than 0 Watts.",
3414 : RoutineName,
3415 : CurrentModuleObject,
3416 0 : Condenser(CondNum).Name,
3417 : cNumericFieldNames(1)));
3418 0 : ErrorsFound = true;
3419 : }
3420 : // Calculate capacity elevation derate factor per ARI 490 barometric pressure correction factor
3421 3 : Condenser(CondNum).EvapElevFact = 1.0 - 3.074e-5 * state.dataEnvrn->Elevation;
3422 :
3423 3 : Condenser(CondNum).RatedSubcool = 0.0; // default value
3424 3 : if ((!lNumericBlanks(2)) && (Numbers(2) > 0.0)) {
3425 0 : Condenser(CondNum).RatedSubcool = Numbers(2);
3426 : }
3427 :
3428 : // Get fan control type
3429 3 : if (lAlphaBlanks(2)) {
3430 0 : Condenser(CondNum).FanSpeedControlType = FanSpeedCtrlType::ConstantSpeed; // default
3431 6 : } else if ((Condenser(CondNum).FanSpeedControlType =
3432 3 : static_cast<FanSpeedCtrlType>(getEnumValue(fanSpeedCtrlTypeNamesUC, Alphas(2)))) == FanSpeedCtrlType::Invalid) {
3433 0 : ShowSevereInvalidKey(state, eoh, cAlphaFieldNames(2), Alphas(2));
3434 0 : ErrorsFound = true;
3435 : } // Set fan control type
3436 :
3437 3 : Condenser(CondNum).RatedFanPower = Numbers(3);
3438 3 : if (Numbers(3) < 0.0) {
3439 0 : ShowSevereError(state,
3440 0 : format("{}{}=\"{}\" {} must be greater than or equal to 0 Watts.",
3441 : RoutineName,
3442 : CurrentModuleObject,
3443 0 : Condenser(CondNum).Name,
3444 : cNumericFieldNames(3)));
3445 0 : ErrorsFound = true;
3446 : }
3447 :
3448 3 : Condenser(CondNum).FanMinAirFlowRatio = 0.2; // default value
3449 3 : if (!lNumericBlanks(4)) {
3450 0 : Condenser(CondNum).FanMinAirFlowRatio = Numbers(4);
3451 : }
3452 :
3453 : // Enter min and max and default coefficients for evap condenser HRCF correlation
3454 : // Defaults taken from 2008 BAC equipment for R22, R134a, series CXV
3455 : // Correlation coefficients for other manufacturers are very similar per Hugh Henderson's work
3456 3 : Condenser(CondNum).EvapCoeff1 = 6.63;
3457 3 : Condenser(CondNum).EvapCoeff2 = 0.468;
3458 3 : Condenser(CondNum).EvapCoeff3 = 17.93;
3459 3 : Condenser(CondNum).EvapCoeff4 = -0.322;
3460 3 : Condenser(CondNum).MinCapFacEvap = 0.5;
3461 3 : Condenser(CondNum).MaxCapFacEvap = 5.0;
3462 3 : NumNum = 5; // added warnings if below not blank but unused due to limits
3463 3 : if (!lNumericBlanks(NumNum)) {
3464 3 : if (Numbers(NumNum) >= 0.0) {
3465 3 : Condenser(CondNum).EvapCoeff1 = Numbers(NumNum);
3466 : } else {
3467 0 : ShowWarningError(state,
3468 0 : format("{}=\"{}\", {} is less than 0 and was not used. Default was used.",
3469 : CurrentModuleObject,
3470 0 : Condenser(CondNum).Name,
3471 : cNumericFieldNames(NumNum)));
3472 : }
3473 : }
3474 3 : NumNum = 6; // EvapCoeff2 can't be equal to 0 because used in a denominator
3475 3 : if (!lNumericBlanks(NumNum)) {
3476 3 : if (Numbers(NumNum) > 0.0) {
3477 3 : Condenser(CondNum).EvapCoeff2 = Numbers(NumNum);
3478 : } else {
3479 0 : ShowWarningError(state,
3480 0 : format("{}=\"{}\", {} is less than or equal to 0 and was not used. Default was used.",
3481 : CurrentModuleObject,
3482 0 : Condenser(CondNum).Name,
3483 : cNumericFieldNames(NumNum)));
3484 : }
3485 : }
3486 3 : NumNum = 7;
3487 3 : if (!lNumericBlanks(NumNum)) {
3488 3 : if (Numbers(NumNum) >= 0.0) {
3489 3 : Condenser(CondNum).EvapCoeff3 = Numbers(NumNum);
3490 : } else {
3491 0 : ShowWarningError(state,
3492 0 : format("{}=\"{}\", {} is less than 0 and was not used. Default was used.",
3493 : CurrentModuleObject,
3494 0 : Condenser(CondNum).Name,
3495 : cNumericFieldNames(NumNum)));
3496 : }
3497 : }
3498 3 : NumNum = 8;
3499 3 : if (!lNumericBlanks(NumNum)) {
3500 3 : if (Numbers(NumNum) >= -20.0) {
3501 3 : Condenser(CondNum).EvapCoeff4 = Numbers(NumNum);
3502 : } else {
3503 0 : ShowWarningError(state,
3504 0 : format("{}=\"{}\", {} is less than -20 and was not used. Default was used.",
3505 : CurrentModuleObject,
3506 0 : Condenser(CondNum).Name,
3507 : cNumericFieldNames(NumNum)));
3508 : }
3509 : }
3510 3 : NumNum = 9;
3511 3 : if (!lNumericBlanks(NumNum)) {
3512 3 : if (Numbers(NumNum) >= 0.0) {
3513 3 : Condenser(CondNum).MinCapFacEvap = Numbers(NumNum);
3514 : } else {
3515 0 : ShowWarningError(state,
3516 0 : format("{}=\"{}\", {} is less than 0 and was not used. Default was used.",
3517 : CurrentModuleObject,
3518 0 : Condenser(CondNum).Name,
3519 : cNumericFieldNames(NumNum)));
3520 : }
3521 : }
3522 3 : NumNum = 10;
3523 3 : if (!lNumericBlanks(NumNum)) {
3524 3 : if (Numbers(NumNum) >= 0.0) {
3525 3 : Condenser(CondNum).MaxCapFacEvap = Numbers(NumNum);
3526 : } else {
3527 0 : ShowWarningError(state,
3528 0 : format("{}=\"{}\", {} is less than 0 and was not used. Default was used.",
3529 : CurrentModuleObject,
3530 0 : Condenser(CondNum).Name,
3531 : cNumericFieldNames(NumNum)));
3532 : }
3533 : }
3534 :
3535 : // Check condenser air inlet node connection
3536 3 : if (lAlphaBlanks(3)) {
3537 0 : Condenser(CondNum).InletAirNodeNum = 0;
3538 : } else {
3539 6 : Condenser(CondNum).InletAirNodeNum =
3540 6 : NodeInputManager::GetOnlySingleNode(state,
3541 3 : Alphas(3),
3542 : ErrorsFound,
3543 : DataLoopNode::ConnectionObjectType::RefrigerationCondenserEvaporativeCooled,
3544 3 : Alphas(1),
3545 : DataLoopNode::NodeFluidType::Air,
3546 : DataLoopNode::ConnectionType::OutsideAirReference,
3547 : NodeInputManager::CompFluidStream::Primary,
3548 : DataLoopNode::ObjectIsParent);
3549 3 : if (!OutAirNodeManager::CheckOutAirNodeNumber(state, Condenser(CondNum).InletAirNodeNum)) {
3550 0 : ShowSevereError(state,
3551 0 : format("{}{}=\"{}\", {} not found: {}",
3552 : RoutineName,
3553 : CurrentModuleObject,
3554 0 : Condenser(CondNum).Name,
3555 : cAlphaFieldNames(3),
3556 : Alphas(3)));
3557 0 : ShowContinueError(state, "...does not appear in an OutdoorAir:NodeList or as an OutdoorAir:Node.");
3558 0 : ErrorsFound = true;
3559 : }
3560 : } // Condenser air inlet node connection
3561 :
3562 3 : NumNum = 11;
3563 3 : Condenser(CondNum).RatedAirFlowRate = Numbers(NumNum);
3564 : // Note the autocalculate feature for this value takes place in the system section because
3565 : // it is a function of the total cooling capacity of the cases served by the condenser
3566 :
3567 : // Evaporative condensers basin heater power as a function of temperature must be greater than or equal to 0
3568 3 : NumNum = 12;
3569 3 : Condenser(CondNum).BasinHeaterPowerFTempDiff = Numbers(NumNum);
3570 3 : if (Numbers(NumNum) < 0.0) {
3571 0 : ShowSevereError(
3572 : state,
3573 0 : format(
3574 0 : "{}{}=\"{}\", {} must be >= 0", RoutineName, CurrentModuleObject, Condenser(CondNum).Name, cNumericFieldNames(NumNum)));
3575 0 : ErrorsFound = true;
3576 : }
3577 :
3578 3 : NumNum = 13;
3579 3 : Condenser(CondNum).BasinHeaterSetPointTemp = 2.0; // default
3580 3 : if (!lNumericBlanks(NumNum)) {
3581 3 : Condenser(CondNum).BasinHeaterSetPointTemp = Numbers(NumNum);
3582 : }
3583 3 : if (Condenser(CondNum).BasinHeaterSetPointTemp < 2.0) {
3584 0 : ShowWarningError(state,
3585 0 : format("{}=\"{}\", {} is less than 2 deg C. Freezing could occur.",
3586 : CurrentModuleObject,
3587 0 : Condenser(CondNum).Name,
3588 : cNumericFieldNames(NumNum)));
3589 : }
3590 :
3591 3 : NumNum = 14;
3592 3 : Condenser(CondNum).EvapPumpPower = 1000.0; // default
3593 3 : if (!lNumericBlanks(NumNum)) {
3594 3 : Condenser(CondNum).EvapPumpPower = Numbers(NumNum);
3595 : }
3596 : // Note the autocalculate feature for this value takes place in the system section because
3597 : // it is a function of the total cooling capacity of the cases served by the condenser
3598 :
3599 : // Get Evaporative Water System tank connections
3600 3 : Condenser(CondNum).SupplyTankName = Alphas(4);
3601 3 : if (lAlphaBlanks(4)) {
3602 0 : Condenser(CondNum).EvapWaterSupplyMode = WaterSupply::FromMains;
3603 : } else {
3604 3 : Condenser(CondNum).EvapWaterSupplyMode = WaterSupply::FromTank;
3605 6 : WaterManager::SetupTankDemandComponent(state,
3606 3 : Condenser(CondNum).Name,
3607 : CurrentModuleObject,
3608 3 : Condenser(CondNum).SupplyTankName,
3609 : ErrorsFound,
3610 3 : Condenser(CondNum).EvapWaterSupTankID,
3611 3 : Condenser(CondNum).EvapWaterTankDemandARRID);
3612 : }
3613 :
3614 3 : if (lAlphaBlanks(5)) {
3615 3 : } else if ((Condenser(CondNum).evapAvailSched = Sched::GetSchedule(state, Alphas(5))) == nullptr) {
3616 0 : ShowSevereItemNotFound(state, eoh, cAlphaFieldNames(5), Alphas(5));
3617 0 : ErrorsFound = true;
3618 3 : } else if (!Condenser(CondNum).evapAvailSched->checkMinVal(state, Clusive::In, 0.0)) {
3619 0 : Sched::ShowSevereBadMin(state, eoh, cAlphaFieldNames(5), Alphas(5), Clusive::In, 0.0);
3620 0 : ErrorsFound = true;
3621 : }
3622 :
3623 3 : Condenser(CondNum).EndUseSubcategory = "";
3624 3 : if (!lAlphaBlanks(6)) {
3625 0 : Condenser(CondNum).EndUseSubcategory = Alphas(6);
3626 : }
3627 :
3628 3 : Condenser(CondNum).RefOpCharge = 0.0;
3629 3 : Condenser(CondNum).RefReceiverInventory = 0.0;
3630 3 : Condenser(CondNum).RefPipingInventory = 0.0;
3631 3 : NumNum = 15;
3632 3 : if (!lNumericBlanks(NumNum)) {
3633 3 : Condenser(CondNum).RefOpCharge = Numbers(NumNum);
3634 : }
3635 3 : NumNum = 16;
3636 3 : if (!lNumericBlanks(NumNum)) {
3637 3 : Condenser(CondNum).RefReceiverInventory = Numbers(NumNum);
3638 : }
3639 3 : NumNum = 17;
3640 3 : if (!lNumericBlanks(NumNum)) {
3641 3 : Condenser(CondNum).RefPipingInventory = Numbers(NumNum);
3642 : }
3643 : } // Read input for CONDENSER:REFRIGERATION:EVAPorativeCooled
3644 : } // If NumSimulationCondEvap > 0
3645 :
3646 16 : if (state.dataRefrigCase->NumSimulationCondWater > 0) {
3647 1 : CurrentModuleObject = "Refrigeration:Condenser:WaterCooled";
3648 2 : for (int CondIndex = 1; CondIndex <= state.dataRefrigCase->NumSimulationCondWater; ++CondIndex) {
3649 1 : int CondNum = CondIndex + state.dataRefrigCase->NumSimulationCondAir + state.dataRefrigCase->NumSimulationCondEvap;
3650 1 : state.dataInputProcessing->inputProcessor->getObjectItem(state,
3651 : CurrentModuleObject,
3652 : CondIndex,
3653 : Alphas,
3654 : NumAlphas,
3655 : Numbers,
3656 : NumNumbers,
3657 : IOStatus,
3658 : lNumericBlanks,
3659 : lAlphaBlanks,
3660 : cAlphaFieldNames,
3661 : cNumericFieldNames);
3662 :
3663 1 : ErrorObjectHeader eoh{routineName, CurrentModuleObject, Alphas(1)};
3664 :
3665 1 : GlobalNames::VerifyUniqueInterObjectName(
3666 2 : state, state.dataRefrigCase->UniqueCondenserNames, Alphas(1), CurrentModuleObject, cAlphaFieldNames(1), ErrorsFound);
3667 1 : Condenser(CondNum).Name = Alphas(1);
3668 1 : state.dataHeatBal->HeatReclaimRefrigCondenser(CondNum).Name = Alphas(1);
3669 :
3670 : // set start of count for number of systems attached to this condenser
3671 1 : Condenser(CondNum).NumSysAttach = 0;
3672 1 : if (!allocated(Condenser(CondNum).SysNum)) {
3673 1 : Condenser(CondNum).SysNum.allocate(state.dataRefrigCase->NumRefrigSystems);
3674 : }
3675 :
3676 : // set CondenserType and rated Heat Rejection per ARI 450 rating
3677 1 : Condenser(CondNum).CondenserType = DataHeatBalance::RefrigCondenserType::Water;
3678 1 : state.dataHeatBal->HeatReclaimRefrigCondenser(CondNum).SourceType = CurrentModuleObject;
3679 1 : if ((!lNumericBlanks(1)) && (Numbers(1) > 0.0)) {
3680 1 : Condenser(CondNum).RatedCapacity = Numbers(1);
3681 : } else {
3682 0 : ShowSevereError(state,
3683 0 : format("{}{}=\"{}\" {} per ARI 450 must be input and must be greater than 0 Watts.",
3684 : RoutineName,
3685 : CurrentModuleObject,
3686 0 : Condenser(CondNum).Name,
3687 : cNumericFieldNames(1)));
3688 0 : ErrorsFound = true;
3689 : }
3690 :
3691 1 : if ((!lNumericBlanks(2)) && (Numbers(2) > 0.0)) {
3692 1 : Condenser(CondNum).RatedTCondense = Numbers(2);
3693 : } else {
3694 0 : ShowSevereError(state,
3695 0 : format("{}{}=\"{}\" {} per ARI 450 must be input and must be greater than 0 C.",
3696 : RoutineName,
3697 : CurrentModuleObject,
3698 0 : Condenser(CondNum).Name,
3699 : cNumericFieldNames(2)));
3700 0 : ErrorsFound = true;
3701 : }
3702 :
3703 1 : if (!lNumericBlanks(3)) {
3704 1 : if (Numbers(3) >= 0.0) {
3705 1 : Condenser(CondNum).RatedSubcool = Numbers(3);
3706 : } else {
3707 0 : ShowSevereError(state,
3708 0 : format("{}{}=\"{}\" {} must be greater than or equal to zero.",
3709 : RoutineName,
3710 : CurrentModuleObject,
3711 0 : Condenser(CondNum).Name,
3712 : cNumericFieldNames(3)));
3713 0 : ErrorsFound = true;
3714 : }
3715 : } else {
3716 0 : Condenser(CondNum).RatedSubcool = 0.0; // default value
3717 : }
3718 :
3719 1 : if ((!lNumericBlanks(4)) && (Numbers(4) > 0.0)) {
3720 1 : Condenser(CondNum).RatedWaterInletT = Numbers(4);
3721 1 : Condenser(CondNum).RatedApproachT = Condenser(CondNum).RatedTCondense - Numbers(4);
3722 : } else {
3723 0 : ShowSevereError(state,
3724 0 : format("{}{}=\"{}\" {} must be input and greater than zero.",
3725 : RoutineName,
3726 : CurrentModuleObject,
3727 0 : Condenser(CondNum).Name,
3728 : cNumericFieldNames(4)));
3729 0 : ErrorsFound = true;
3730 : }
3731 :
3732 2 : Condenser(CondNum).InletNode =
3733 2 : NodeInputManager::GetOnlySingleNode(state,
3734 1 : Alphas(2),
3735 : ErrorsFound,
3736 : DataLoopNode::ConnectionObjectType::RefrigerationCondenserWaterCooled,
3737 1 : Alphas(1),
3738 : DataLoopNode::NodeFluidType::Water,
3739 : DataLoopNode::ConnectionType::Inlet,
3740 : NodeInputManager::CompFluidStream::Primary,
3741 : DataLoopNode::ObjectIsNotParent);
3742 2 : Condenser(CondNum).OutletNode =
3743 2 : NodeInputManager::GetOnlySingleNode(state,
3744 1 : Alphas(3),
3745 : ErrorsFound,
3746 : DataLoopNode::ConnectionObjectType::RefrigerationCondenserWaterCooled,
3747 1 : Alphas(1),
3748 : DataLoopNode::NodeFluidType::Water,
3749 : DataLoopNode::ConnectionType::Outlet,
3750 : NodeInputManager::CompFluidStream::Primary,
3751 : DataLoopNode::ObjectIsNotParent);
3752 : // Check node connections
3753 1 : BranchNodeConnections::TestCompSet(state, CurrentModuleObject, Alphas(1), Alphas(2), Alphas(3), "Water Cooled Condenser Nodes");
3754 : // Get loop flow type
3755 1 : if ((Condenser(CondNum).FlowType = static_cast<CndsrFlowType>(getEnumValue(cndsrFlowTypeNamesUC, Alphas(4)))) ==
3756 : CndsrFlowType::Invalid) {
3757 :
3758 0 : ShowSevereInvalidKey(state, eoh, cAlphaFieldNames(4), Alphas(4));
3759 0 : ErrorsFound = true;
3760 : } // Set FlowType
3761 :
3762 : // Get outlet temperature schedule for variable flow case
3763 1 : if (Condenser(CondNum).FlowType == CndsrFlowType::Variable) {
3764 1 : if (lAlphaBlanks(5)) {
3765 1 : } else if ((Condenser(CondNum).outletTempSched = Sched::GetSchedule(state, Alphas(5))) == nullptr) {
3766 0 : ShowSevereItemNotFound(state, eoh, cAlphaFieldNames(5), Alphas(5));
3767 0 : ErrorsFound = true;
3768 : }
3769 : } // Outlet temperature schedule
3770 :
3771 : // Get volumetric flow rate if applicable
3772 0 : else if (Condenser(CondNum).FlowType == CndsrFlowType::Constant) {
3773 0 : if ((!lNumericBlanks(5)) && (Numbers(5) > 0.0)) {
3774 0 : Condenser(CondNum).DesVolFlowRate = Numbers(5);
3775 0 : Condenser(CondNum).VolFlowRate = Numbers(5);
3776 : } else {
3777 0 : ShowSevereError(state,
3778 0 : format("{}{}=\"{}\" {} must be greater than zero.",
3779 : RoutineName,
3780 : CurrentModuleObject,
3781 0 : Condenser(CondNum).Name,
3782 : cNumericFieldNames(5)));
3783 0 : ShowContinueError(state, "Revise flow rates.");
3784 0 : ErrorsFound = true;
3785 : }
3786 0 : PlantUtilities::RegisterPlantCompDesignFlow(state, Condenser(CondNum).InletNode, Condenser(CondNum).DesVolFlowRate);
3787 : }
3788 :
3789 : // Get maximum flow rates
3790 1 : if (Numbers(6) > 0.0) {
3791 1 : Condenser(CondNum).VolFlowRateMax = Numbers(6);
3792 : // Check constant flow for max violation, if applicable
3793 1 : if (Condenser(CondNum).FlowType == CndsrFlowType::Constant && Condenser(CondNum).VolFlowRate > Numbers(6)) {
3794 0 : ShowSevereError(state,
3795 0 : format("{}{}=\"{}\" {} > {} .",
3796 : RoutineName,
3797 : CurrentModuleObject,
3798 0 : Condenser(CondNum).Name,
3799 : cNumericFieldNames(5),
3800 : cNumericFieldNames(6)));
3801 0 : ShowContinueError(state, "Revise flow rates.");
3802 0 : ErrorsFound = true;
3803 : } // Error check on max flow rate
3804 : } else {
3805 0 : ShowSevereError(state,
3806 0 : format("{}{}=\"{}\" {} must be greater than zero.",
3807 : RoutineName,
3808 : CurrentModuleObject,
3809 0 : Condenser(CondNum).Name,
3810 : cNumericFieldNames(6)));
3811 0 : ErrorsFound = true;
3812 : }
3813 :
3814 : // Get max/min allowed water temps
3815 1 : Condenser(CondNum).OutletTempMax = Numbers(7);
3816 1 : Condenser(CondNum).InletTempMin = Numbers(8);
3817 :
3818 1 : Condenser(CondNum).EndUseSubcategory = "";
3819 1 : if (!lAlphaBlanks(6)) {
3820 0 : Condenser(CondNum).EndUseSubcategory = Alphas(6);
3821 : }
3822 :
3823 1 : Condenser(CondNum).RefOpCharge = 0.0;
3824 1 : Condenser(CondNum).RefReceiverInventory = 0.0;
3825 1 : Condenser(CondNum).RefPipingInventory = 0.0;
3826 1 : if (!lNumericBlanks(9)) {
3827 1 : Condenser(CondNum).RefOpCharge = Numbers(9);
3828 : }
3829 1 : if (!lNumericBlanks(10)) {
3830 1 : Condenser(CondNum).RefReceiverInventory = Numbers(10);
3831 : }
3832 1 : if (!lNumericBlanks(11)) {
3833 1 : Condenser(CondNum).RefPipingInventory = Numbers(11);
3834 : }
3835 :
3836 : } // Read input for CONDENSER:REFRIGERATION:WaterCooled
3837 :
3838 1 : state.dataRefrigCase->CheckEquipNameWaterCondenser.dimension(state.dataRefrigCase->NumRefrigCondensers, true);
3839 : } // NumSimulationCondWater > 0
3840 :
3841 : // cascade condensers assumed to provide zero subcooling
3842 16 : if (state.dataRefrigCase->NumSimulationCascadeCondensers > 0) {
3843 1 : CurrentModuleObject = "Refrigeration:Condenser:Cascade";
3844 2 : for (int CondIndex = 1; CondIndex <= state.dataRefrigCase->NumSimulationCascadeCondensers; ++CondIndex) {
3845 1 : int CondNum = CondIndex + state.dataRefrigCase->NumSimulationCondAir + state.dataRefrigCase->NumSimulationCondEvap +
3846 1 : state.dataRefrigCase->NumSimulationCondWater;
3847 1 : state.dataInputProcessing->inputProcessor->getObjectItem(state,
3848 : CurrentModuleObject,
3849 : CondIndex,
3850 : Alphas,
3851 : NumAlphas,
3852 : Numbers,
3853 : NumNumbers,
3854 : IOStatus,
3855 : lNumericBlanks,
3856 : lAlphaBlanks,
3857 : cAlphaFieldNames,
3858 : cNumericFieldNames);
3859 :
3860 1 : ErrorObjectHeader eoh{routineName, CurrentModuleObject, Alphas(1)};
3861 :
3862 1 : GlobalNames::VerifyUniqueInterObjectName(
3863 2 : state, state.dataRefrigCase->UniqueCondenserNames, Alphas(1), CurrentModuleObject, cAlphaFieldNames(1), ErrorsFound);
3864 1 : Condenser(CondNum).Name = Alphas(1);
3865 1 : state.dataHeatBal->HeatReclaimRefrigCondenser(CondNum).Name = Alphas(1);
3866 :
3867 : // set start of count for number of systems attached to this condenser
3868 1 : Condenser(CondNum).NumSysAttach = 0;
3869 1 : if (!allocated(Condenser(CondNum).SysNum)) {
3870 1 : Condenser(CondNum).SysNum.allocate(state.dataRefrigCase->NumRefrigSystems);
3871 : }
3872 :
3873 : // set CondenserType
3874 1 : Condenser(CondNum).CondenserType = DataHeatBalance::RefrigCondenserType::Cascade;
3875 :
3876 1 : if (!lNumericBlanks(1)) {
3877 1 : Condenser(CondNum).RatedTCondense = Numbers(1);
3878 : } else {
3879 0 : ShowSevereError(
3880 : state,
3881 0 : format("{}{}=\"{}\" {} must be input.", RoutineName, CurrentModuleObject, Condenser(CondNum).Name, cNumericFieldNames(1)));
3882 0 : ErrorsFound = true;
3883 : }
3884 :
3885 1 : if (!lNumericBlanks(2)) {
3886 1 : if (Numbers(2) >= 0.0) {
3887 1 : Condenser(CondNum).RatedApproachT = Numbers(2);
3888 : } else {
3889 0 : ShowSevereError(state,
3890 0 : format("{}{}=\"{}\" {} must be greater than or equal to zero.",
3891 : RoutineName,
3892 : CurrentModuleObject,
3893 0 : Condenser(CondNum).Name,
3894 : cNumericFieldNames(2)));
3895 0 : ErrorsFound = true;
3896 : }
3897 : } else {
3898 0 : Condenser(CondNum).RatedApproachT = DefaultCascadeCondApproach;
3899 : }
3900 :
3901 1 : if ((!lNumericBlanks(3)) && (Numbers(3) > 0.0)) {
3902 1 : Condenser(CondNum).RatedCapacity = Numbers(3);
3903 : } else {
3904 0 : ShowSevereError(state,
3905 0 : format("{}{}=\"{}\" {} must be in put and must be greater than or equal to zero.",
3906 : RoutineName,
3907 : CurrentModuleObject,
3908 0 : Condenser(CondNum).Name,
3909 : cNumericFieldNames(3)));
3910 0 : ErrorsFound = true;
3911 : }
3912 :
3913 : // Get condensing temperature type, either fixed by design or allowed to float to match other loads on supply system
3914 1 : if (lAlphaBlanks(2)) {
3915 0 : Condenser(CondNum).CascadeTempControl = CascadeCndsrTempCtrlType::TempSet;
3916 2 : } else if ((Condenser(CondNum).CascadeTempControl = static_cast<CascadeCndsrTempCtrlType>(
3917 1 : getEnumValue(cascaseCndsrTempCtrlTypeNamesUC, Alphas(2)))) == CascadeCndsrTempCtrlType::Invalid) {
3918 0 : ShowSevereInvalidKey(state, eoh, cAlphaFieldNames(2), Alphas(2));
3919 0 : ErrorsFound = true;
3920 : } // string comparison to key choices
3921 :
3922 1 : Condenser(CondNum).CascadeRatedEvapTemp = Condenser(CondNum).RatedTCondense - Condenser(CondNum).RatedApproachT;
3923 :
3924 : // future - add refrigerant inventory on system side accepting reject heat (as was done for secondary)
3925 1 : Condenser(CondNum).RefOpCharge = 0.0;
3926 1 : Condenser(CondNum).RefReceiverInventory = 0.0;
3927 1 : Condenser(CondNum).RefPipingInventory = 0.0;
3928 1 : if (!lNumericBlanks(4)) {
3929 0 : Condenser(CondNum).RefOpCharge = Numbers(4);
3930 : }
3931 1 : if (!lNumericBlanks(5)) {
3932 0 : Condenser(CondNum).RefReceiverInventory = Numbers(5);
3933 : }
3934 1 : if (!lNumericBlanks(6)) {
3935 0 : Condenser(CondNum).RefPipingInventory = Numbers(6);
3936 : }
3937 :
3938 : } // Read input for CONDENSER:REFRIGERATION:Cascade
3939 : } // NumSimulationCascadeCondensers > 0
3940 :
3941 : //************ END CONDENSER INPUT **************
3942 :
3943 : //********** START GAS COOLER INPUT **********
3944 :
3945 16 : if (state.dataRefrigCase->NumSimulationGasCooler > 0) {
3946 1 : CurrentModuleObject = "Refrigeration:GasCooler:AirCooled";
3947 2 : for (int GCNum = 1; GCNum <= state.dataRefrigCase->NumSimulationGasCooler; ++GCNum) {
3948 1 : state.dataInputProcessing->inputProcessor->getObjectItem(state,
3949 : CurrentModuleObject,
3950 : GCNum,
3951 : Alphas,
3952 : NumAlphas,
3953 : Numbers,
3954 : NumNumbers,
3955 : IOStatus,
3956 : lNumericBlanks,
3957 : lAlphaBlanks,
3958 : cAlphaFieldNames,
3959 : cNumericFieldNames);
3960 1 : ErrorObjectHeader eoh{routineName, CurrentModuleObject, Alphas(1)};
3961 :
3962 1 : GasCooler(GCNum).Name = Alphas(1);
3963 :
3964 1 : GasCooler(GCNum).CapCurvePtr = Curve::GetCurveIndex(state, Alphas(2)); // convert curve name to number
3965 1 : if (GasCooler(GCNum).CapCurvePtr == 0) {
3966 0 : ShowSevereItemNotFound(state, eoh, cAlphaFieldNames(2), Alphas(2));
3967 0 : ErrorsFound = true;
3968 : }
3969 :
3970 : // set start of count for number of systems attached to this gas cooler
3971 1 : GasCooler(GCNum).NumSysAttach = 0;
3972 1 : if (!allocated(GasCooler(GCNum).SysNum)) {
3973 1 : GasCooler(GCNum).SysNum.allocate(state.dataRefrigCase->NumTransRefrigSystems);
3974 : }
3975 :
3976 1 : GasCooler(GCNum).RatedApproachT = 3.0; // rated CO2 gas cooler approach temperature
3977 1 : if (GasCooler(GCNum).CapCurvePtr > 0) {
3978 1 : GasCooler(GCNum).RatedCapacity = Curve::CurveValue(state, GasCooler(GCNum).CapCurvePtr, GasCooler(GCNum).RatedApproachT);
3979 : }
3980 : // elevation capacity correction on air-cooled condensers, Carrier correlation more conservative than Trane
3981 1 : GasCooler(GCNum).RatedCapacity *= (1.0 - 7.17e-5 * state.dataEnvrn->Elevation);
3982 1 : if (GasCooler(GCNum).RatedCapacity > 0.0) {
3983 1 : Curve::GetCurveMinMaxValues(state, GasCooler(GCNum).CapCurvePtr, DelTempMin, DelTempMax);
3984 1 : Real64 Capmin = Curve::CurveValue(state, GasCooler(GCNum).CapCurvePtr, DelTempMin) * (1.0 - 7.17e-5 * state.dataEnvrn->Elevation);
3985 1 : Real64 Capmax = Curve::CurveValue(state, GasCooler(GCNum).CapCurvePtr, DelTempMax) * (1.0 - 7.17e-5 * state.dataEnvrn->Elevation);
3986 1 : GasCooler(GCNum).TempSlope = (DelTempMax - DelTempMin) / ((Capmax - Capmin));
3987 1 : GasCooler(GCNum).MinCondLoad = Capmax - DelTempMax / GasCooler(GCNum).TempSlope;
3988 : } else {
3989 0 : ShowSevereError(
3990 : state,
3991 0 : format("{}{}=\"{}\" Gas Cooler capacity curve must be input and must be greater than 0 Watts at 3C temperature difference.",
3992 : RoutineName,
3993 : CurrentModuleObject,
3994 0 : GasCooler(GCNum).Name));
3995 0 : ErrorsFound = true;
3996 : }
3997 :
3998 : // Get fan control type
3999 1 : if (lAlphaBlanks(3)) {
4000 0 : GasCooler(GCNum).FanSpeedControlType = FanSpeedCtrlType::ConstantSpeed; // default
4001 1 : } else if ((GasCooler(GCNum).FanSpeedControlType = static_cast<FanSpeedCtrlType>(getEnumValue(fanSpeedCtrlTypeNamesUC, Alphas(3)))) ==
4002 : FanSpeedCtrlType::Invalid) {
4003 0 : ShowSevereInvalidKey(state, eoh, cAlphaFieldNames(3), Alphas(3));
4004 0 : ErrorsFound = true;
4005 : }
4006 :
4007 : // Gas cooler fan power
4008 1 : GasCooler(GCNum).RatedFanPower = 5000.0; // default value
4009 1 : if (!lNumericBlanks(1)) {
4010 1 : GasCooler(GCNum).RatedFanPower = Numbers(1);
4011 : }
4012 1 : if (Numbers(1) < 0.0) {
4013 0 : ShowSevereError(state,
4014 0 : format("{}{}=\"{}\" {} must be input greater than or equal to 0 Watts.",
4015 : RoutineName,
4016 : CurrentModuleObject,
4017 0 : GasCooler(GCNum).Name,
4018 : cNumericFieldNames(1)));
4019 0 : ErrorsFound = true;
4020 : }
4021 :
4022 : // Gas cooler minimum fan air flow ratio
4023 1 : GasCooler(GCNum).FanMinAirFlowRatio = 0.2; // default value
4024 1 : if (!lNumericBlanks(2)) {
4025 1 : GasCooler(GCNum).FanMinAirFlowRatio = Numbers(2);
4026 : }
4027 1 : if ((GasCooler(GCNum).FanMinAirFlowRatio < 0.0) || (GasCooler(GCNum).FanMinAirFlowRatio > 1.0)) {
4028 0 : ShowSevereError(state,
4029 0 : format("{}{}=\"{}\" {} must be a value between zero and one. The default value (0.2) will be used.",
4030 : RoutineName,
4031 : CurrentModuleObject,
4032 0 : GasCooler(GCNum).Name,
4033 : cNumericFieldNames(2)));
4034 0 : GasCooler(GCNum).FanMinAirFlowRatio = 0.2;
4035 : }
4036 :
4037 : // Gas cooler transition temperature
4038 1 : GasCooler(GCNum).TransitionTemperature = 2.7e1; // default value
4039 1 : if (!lNumericBlanks(3)) {
4040 1 : GasCooler(GCNum).TransitionTemperature = Numbers(3);
4041 : }
4042 1 : if (GasCooler(GCNum).TransitionTemperature < 2.5e1) {
4043 0 : ShowWarningError(state,
4044 0 : format("{}{}=\"{}\" {} is low (less than 25C). Consider raising the transition temperature to operate for "
4045 : "longer periods of time in the subcritical region.",
4046 : RoutineName,
4047 : CurrentModuleObject,
4048 0 : GasCooler(GCNum).Name,
4049 : cNumericFieldNames(3)));
4050 : }
4051 1 : if (GasCooler(GCNum).TransitionTemperature > 30.978) {
4052 0 : ShowWarningError(
4053 : state,
4054 0 : format("{}{}=\"{}\" {} is greater than the critical temperature of carbon dioxide. The default value (27C) will be used.",
4055 : RoutineName,
4056 : CurrentModuleObject,
4057 0 : GasCooler(GCNum).Name,
4058 : cNumericFieldNames(3)));
4059 0 : GasCooler(GCNum).TransitionTemperature = 2.7e1;
4060 : }
4061 :
4062 : // Gas cooler approach temperature for transcritical operation
4063 1 : GasCooler(GCNum).GasCoolerApproachT = 3.0; // default value
4064 1 : if (!lNumericBlanks(4)) {
4065 1 : GasCooler(GCNum).GasCoolerApproachT = Numbers(4);
4066 : }
4067 1 : if (GasCooler(GCNum).GasCoolerApproachT < 0.0) {
4068 0 : ShowSevereError(state,
4069 0 : format("{}{}=\"{}\" {} must be greater than 0C.",
4070 : RoutineName,
4071 : CurrentModuleObject,
4072 0 : GasCooler(GCNum).Name,
4073 : cNumericFieldNames(4)));
4074 0 : ErrorsFound = true;
4075 : }
4076 :
4077 : // Gas cooler temperature difference for subcritical operation
4078 1 : GasCooler(GCNum).SubcriticalTempDiff = 1.0e1; // default value
4079 1 : if (!lNumericBlanks(5)) {
4080 1 : GasCooler(GCNum).SubcriticalTempDiff = Numbers(5);
4081 : }
4082 1 : if (GasCooler(GCNum).SubcriticalTempDiff < 0.0) {
4083 0 : ShowSevereError(state,
4084 0 : format("{}{}=\"{}\" {} must be greater than 0C.",
4085 : RoutineName,
4086 : CurrentModuleObject,
4087 0 : GasCooler(GCNum).Name,
4088 : cNumericFieldNames(5)));
4089 0 : ErrorsFound = true;
4090 : }
4091 :
4092 : // Gas cooler minimum condensing temperature for subcritical operation
4093 1 : GasCooler(GCNum).MinCondTemp = 1.0e1; // default value
4094 1 : if (!lNumericBlanks(6)) {
4095 1 : GasCooler(GCNum).MinCondTemp = Numbers(6);
4096 : }
4097 1 : if (GasCooler(GCNum).MinCondTemp > 30.9) {
4098 0 : ShowSevereError(state,
4099 0 : format("{}{}=\"{}\" {} must be less than the critical temperature of carbon dioxide (31C).",
4100 : RoutineName,
4101 : CurrentModuleObject,
4102 0 : GasCooler(GCNum).Name,
4103 : cNumericFieldNames(6)));
4104 0 : ErrorsFound = true;
4105 : }
4106 :
4107 : // Check GasCooler air inlet node connection
4108 1 : GasCooler(GCNum).GasCoolerRejectHeatToZone = false;
4109 1 : if (lAlphaBlanks(4)) {
4110 1 : GasCooler(GCNum).InletAirNodeNum = 0;
4111 : } else { // see if it's an outside air node name or an indoor zone name,
4112 : // have to check inside first because outside check automatically generates an error message
4113 0 : GasCooler(GCNum).InletAirZoneNum = Util::FindItemInList(Alphas(4), state.dataHeatBal->Zone);
4114 : // need to clearly id node number for air inlet conditions and zone number for casecredit assignment
4115 0 : if (GasCooler(GCNum).InletAirZoneNum != 0) {
4116 : // set condenser flag (later used to set system flag) and zone flag
4117 0 : GasCooler(GCNum).InletAirNodeNum = DataZoneEquipment::GetSystemNodeNumberForZone(state, GasCooler(GCNum).InletAirZoneNum);
4118 0 : GasCooler(GCNum).GasCoolerRejectHeatToZone = true;
4119 0 : state.dataRefrigCase->RefrigPresentInZone(GasCooler(GCNum).InletAirZoneNum) = true;
4120 : } else { // not in a conditioned zone, so see if it's outside
4121 0 : GasCooler(GCNum).InletAirNodeNum =
4122 0 : NodeInputManager::GetOnlySingleNode(state,
4123 0 : Alphas(4),
4124 : ErrorsFound,
4125 : DataLoopNode::ConnectionObjectType::RefrigerationGasCoolerAirCooled,
4126 0 : Alphas(1),
4127 : DataLoopNode::NodeFluidType::Air,
4128 : DataLoopNode::ConnectionType::OutsideAirReference,
4129 : NodeInputManager::CompFluidStream::Primary,
4130 : DataLoopNode::ObjectIsParent);
4131 0 : if (!OutAirNodeManager::CheckOutAirNodeNumber(state, GasCooler(GCNum).InletAirNodeNum)) {
4132 : // not outside and not a zone
4133 0 : ShowSevereItemNotFound(state, eoh, cAlphaFieldNames(4), Alphas(4));
4134 0 : ShowContinueError(state, "...does not appear in an OutdoorAir:NodeList or as an OutdoorAir:Node or as a Zone.");
4135 0 : ErrorsFound = true;
4136 : } // checkoutairnodenumber
4137 : } // InletAirZoneNum \=0
4138 : } // Gas cooler air inlet node connection
4139 :
4140 1 : GasCooler(GCNum).EndUseSubcategory = "";
4141 1 : if (!lAlphaBlanks(5)) {
4142 1 : GasCooler(GCNum).EndUseSubcategory = Alphas(5);
4143 : }
4144 :
4145 1 : GasCooler(GCNum).RefOpCharge = 0.0;
4146 1 : GasCooler(GCNum).RefReceiverInventory = 0.0;
4147 1 : GasCooler(GCNum).RefPipingInventory = 0.0;
4148 1 : if (!lNumericBlanks(7)) {
4149 0 : GasCooler(GCNum).RefOpCharge = Numbers(7);
4150 : }
4151 1 : if (!lNumericBlanks(8)) {
4152 0 : GasCooler(GCNum).RefReceiverInventory = Numbers(8);
4153 : }
4154 1 : if (!lNumericBlanks(9)) {
4155 0 : GasCooler(GCNum).RefPipingInventory = Numbers(9);
4156 : }
4157 :
4158 : } // Read input for REFRIGERATION:GasCooler:AirCooled
4159 : } // NumSimulationGasCooler > 0
4160 :
4161 : //********** END GAS COOLER INPUT **********
4162 :
4163 : //************ START SECONDARY LOOP INPUT (before system input) **************
4164 16 : if (state.dataRefrigCase->NumSimulationSecondarySystems > 0) {
4165 1 : CurrentModuleObject = "Refrigeration:SecondarySystem";
4166 3 : for (int SecondaryNum = 1; SecondaryNum <= state.dataRefrigCase->NumSimulationSecondarySystems; ++SecondaryNum) {
4167 2 : state.dataInputProcessing->inputProcessor->getObjectItem(state,
4168 : CurrentModuleObject,
4169 : SecondaryNum,
4170 : Alphas,
4171 : NumAlphas,
4172 : Numbers,
4173 : NumNumbers,
4174 : IOStatus,
4175 : lNumericBlanks,
4176 : lAlphaBlanks,
4177 : cAlphaFieldNames,
4178 : cNumericFieldNames);
4179 :
4180 2 : ErrorObjectHeader eoh{routineName, CurrentModuleObject, Alphas(1)};
4181 2 : Util::IsNameEmpty(state, Alphas(1), CurrentModuleObject, ErrorsFound);
4182 :
4183 2 : Secondary(SecondaryNum).Name = Alphas(1);
4184 :
4185 : // Find the loads on the secondary loop: can be input in form of case or walkin or CaseAndWalkInList names
4186 2 : Real64 NominalTotalCaseCap = 0.0;
4187 2 : NumCases = 0;
4188 2 : Real64 NominalTotalCoilCap = 0.0;
4189 2 : int NumCoils = 0;
4190 2 : NumWalkIns = 0;
4191 2 : Real64 NominalTotalWalkInCap = 0.0;
4192 2 : Secondary(SecondaryNum).RefInventory = 0.0;
4193 :
4194 : // Read display case and walkin assignments for this secondary
4195 2 : AlphaNum = 2;
4196 2 : if (lAlphaBlanks(AlphaNum)) {
4197 : // No cases or walkins specified, ie, secondary has no load
4198 0 : ShowSevereError(state,
4199 0 : format("{}{}=\"{}\", has no loads, must have at least one of: {}",
4200 : RoutineName,
4201 : CurrentModuleObject,
4202 0 : Secondary(SecondaryNum).Name,
4203 : cAlphaFieldNames(AlphaNum)));
4204 0 : ErrorsFound = true;
4205 : } else { // (.NOT. lAlphaBlanks(AlphaNum))
4206 :
4207 : // Entry for Alphas(AlphaNum) can be either a Case, WalkIn Coil, or CaseAndWalkInList name
4208 2 : int CaseAndWalkInListNum = 0;
4209 2 : int CaseNum = 0;
4210 2 : int WalkInNum = 0;
4211 2 : int CoilNum = 0;
4212 2 : if (state.dataRefrigCase->NumSimulationCaseAndWalkInLists > 0) {
4213 2 : CaseAndWalkInListNum = Util::FindItemInList(Alphas(AlphaNum), CaseAndWalkInList);
4214 : }
4215 2 : if (state.dataRefrigCase->NumSimulationCases > 0) {
4216 2 : CaseNum = Util::FindItemInList(Alphas(AlphaNum), RefrigCase);
4217 : }
4218 2 : if (state.dataRefrigCase->NumSimulationWalkIns > 0) {
4219 2 : WalkInNum = Util::FindItemInList(Alphas(AlphaNum), WalkIn);
4220 : }
4221 2 : if (state.dataRefrigCase->NumSimulationRefrigAirChillers > 0) {
4222 0 : CoilNum = Util::FindItemInList(Alphas(AlphaNum), WarehouseCoil);
4223 : }
4224 2 : int NumNameMatches = 0;
4225 2 : if (CaseAndWalkInListNum != 0) {
4226 2 : ++NumNameMatches;
4227 : }
4228 2 : if (CaseNum != 0) {
4229 0 : ++NumNameMatches;
4230 : }
4231 2 : if (WalkInNum != 0) {
4232 0 : ++NumNameMatches;
4233 : }
4234 2 : if (CoilNum != 0) {
4235 0 : ++NumNameMatches;
4236 : }
4237 :
4238 2 : if (NumNameMatches != 1) { // name must uniquely point to a list or a single case or walkin or coil
4239 0 : ErrorsFound = true;
4240 0 : if (NumNameMatches == 0) {
4241 0 : ShowSevereError(state,
4242 0 : format("{}{}=\"{}\", has an invalid {}: {}",
4243 : RoutineName,
4244 : CurrentModuleObject,
4245 0 : Secondary(SecondaryNum).Name,
4246 : cAlphaFieldNames(AlphaNum),
4247 : Alphas(AlphaNum)));
4248 0 : } else if (NumNameMatches > 1) {
4249 0 : ShowSevereError(state,
4250 0 : format("{}{}=\"{}\", has a non-unique name that could be either a {}: {}",
4251 : RoutineName,
4252 : CurrentModuleObject,
4253 0 : Secondary(SecondaryNum).Name,
4254 : cAlphaFieldNames(AlphaNum),
4255 : Alphas(AlphaNum)));
4256 : } // num matches = 0 or > 1
4257 2 : } else if (CaseAndWalkInListNum != 0) { // Name points to a CaseAndWalkInList
4258 2 : NumCoils = CaseAndWalkInList(CaseAndWalkInListNum).NumCoils;
4259 2 : NumCases = CaseAndWalkInList(CaseAndWalkInListNum).NumCases;
4260 2 : NumWalkIns = CaseAndWalkInList(CaseAndWalkInListNum).NumWalkIns;
4261 2 : Secondary(SecondaryNum).NumCases = NumCases;
4262 2 : Secondary(SecondaryNum).NumCoils = NumCoils;
4263 2 : Secondary(SecondaryNum).NumWalkIns = NumWalkIns;
4264 2 : if (!allocated(Secondary(SecondaryNum).CaseNum)) {
4265 2 : Secondary(SecondaryNum).CaseNum.allocate(NumCases);
4266 : }
4267 2 : Secondary(SecondaryNum).CaseNum({1, NumCases}) = CaseAndWalkInList(CaseAndWalkInListNum).CaseItemNum({1, NumCases});
4268 2 : if (!allocated(Secondary(SecondaryNum).CoilNum)) {
4269 2 : Secondary(SecondaryNum).CoilNum.allocate(NumCoils);
4270 : }
4271 2 : Secondary(SecondaryNum).CoilNum({1, NumCoils}) = CaseAndWalkInList(CaseAndWalkInListNum).CoilItemNum({1, NumCoils});
4272 2 : if (!allocated(Secondary(SecondaryNum).WalkInNum)) {
4273 2 : Secondary(SecondaryNum).WalkInNum.allocate(NumWalkIns);
4274 : }
4275 2 : Secondary(SecondaryNum).WalkInNum({1, NumWalkIns}) = CaseAndWalkInList(CaseAndWalkInListNum).WalkInItemNum({1, NumWalkIns});
4276 0 : } else if (CaseNum != 0) { // Name points to a case
4277 0 : NumCases = 1;
4278 0 : Secondary(SecondaryNum).NumCases = 1;
4279 0 : if (!allocated(Secondary(SecondaryNum).CaseNum)) {
4280 0 : Secondary(SecondaryNum).CaseNum.allocate(NumCases);
4281 : }
4282 0 : Secondary(SecondaryNum).CaseNum(NumCases) = CaseNum;
4283 0 : } else if (CoilNum != 0) { // Name points to a coil
4284 0 : NumCoils = 1;
4285 0 : Secondary(SecondaryNum).NumCoils = 1;
4286 0 : if (!allocated(Secondary(SecondaryNum).CoilNum)) {
4287 0 : Secondary(SecondaryNum).CoilNum.allocate(NumCoils);
4288 : }
4289 0 : Secondary(SecondaryNum).CoilNum(NumCoils) = CoilNum;
4290 0 : } else if (WalkInNum != 0) { // Name points to a walkin
4291 0 : NumWalkIns = 1;
4292 0 : Secondary(SecondaryNum).NumWalkIns = 1;
4293 0 : if (!allocated(Secondary(SecondaryNum).WalkInNum)) {
4294 0 : Secondary(SecondaryNum).WalkInNum.allocate(NumWalkIns);
4295 : }
4296 0 : Secondary(SecondaryNum).WalkInNum(NumWalkIns) = WalkInNum;
4297 : } // NumNameMatches /= 1
4298 : } // blank input for loads on secondary
4299 :
4300 2 : if (NumCases > 0) {
4301 : // Find lowest design T loop fluid out of secondary chiller
4302 : // Sum rated capacity of all cases on Secondary
4303 9 : for (int caseIndex = 1; caseIndex <= NumCases; ++caseIndex) {
4304 : // mark all cases on Secondary as used by this Secondary - checking for unused or non-unique cases
4305 7 : int CaseNum = Secondary(SecondaryNum).CaseNum(caseIndex);
4306 7 : ++RefrigCase(CaseNum).NumSysAttach;
4307 7 : NominalTotalCaseCap += RefrigCase(CaseNum).DesignRatedCap * RefrigCase(CaseNum).RatedRTF;
4308 7 : Secondary(SecondaryNum).RefInventory += RefrigCase(CaseNum).DesignRefrigInventory;
4309 7 : if (caseIndex == 1) { // look for lowest case design evap T for Secondary
4310 2 : Secondary(SecondaryNum).TMinNeeded = RefrigCase(CaseNum).EvapTempDesign;
4311 : } else {
4312 5 : Secondary(SecondaryNum).TMinNeeded = min(RefrigCase(CaseNum).EvapTempDesign, Secondary(SecondaryNum).TMinNeeded);
4313 : }
4314 : } // CaseIndex=1,NumCases
4315 : } // Numcases > 0
4316 :
4317 2 : if (NumCoils > 0) {
4318 : // Find lowest design T loop fluid out of secondary chiller
4319 : // Sum rated capacity of all Coils on Secondary
4320 0 : for (int CoilIndex = 1; CoilIndex <= NumCoils; ++CoilIndex) {
4321 : // mark all Coils on Secondary as used by this Secondary - checking for unused or non-unique Coils
4322 0 : int CoilNum = Secondary(SecondaryNum).CoilNum(CoilIndex);
4323 0 : ++WarehouseCoil(CoilNum).NumSysAttach;
4324 0 : NominalTotalCoilCap += WarehouseCoil(CoilNum).RatedSensibleCap;
4325 0 : Secondary(SecondaryNum).RefInventory += WarehouseCoil(CoilNum).DesignRefrigInventory;
4326 0 : if ((CoilIndex == 1) && (NumCases == 0)) { // look for lowest Coil design evap T for Secondary
4327 0 : Secondary(SecondaryNum).TMinNeeded = WarehouseCoil(CoilNum).TEvapDesign;
4328 : } else {
4329 0 : Secondary(SecondaryNum).TMinNeeded = min(WarehouseCoil(CoilNum).TEvapDesign, Secondary(SecondaryNum).TMinNeeded);
4330 : }
4331 : } // CoilIndex=1,NumCoils
4332 : } // NumCoils > 0
4333 :
4334 2 : if (NumWalkIns > 0) {
4335 : // Find lowest design T loop fluid out of secondary chiller
4336 : // Sum rated capacity of all WalkIns on Secondary
4337 2 : for (int WalkInIndex = 1; WalkInIndex <= NumWalkIns; ++WalkInIndex) {
4338 : // mark all WalkIns on Secondary as used by this Secondary - checking for unused or non-unique WalkIns
4339 1 : int WalkInID = Secondary(SecondaryNum).WalkInNum(WalkInIndex);
4340 1 : ++WalkIn(WalkInID).NumSysAttach;
4341 1 : NominalTotalWalkInCap += WalkIn(WalkInID).DesignRatedCap;
4342 1 : Secondary(SecondaryNum).RefInventory += WalkIn(WalkInID).DesignRefrigInventory;
4343 1 : if ((WalkInIndex == 1) && (NumCases == 0) && (NumCoils == 0)) { // look for lowest load design evap T for Secondary
4344 0 : Secondary(SecondaryNum).TMinNeeded = WalkIn(WalkInID).TEvapDesign;
4345 : } else {
4346 1 : Secondary(SecondaryNum).TMinNeeded = min(Secondary(SecondaryNum).TMinNeeded, WalkIn(WalkInID).TEvapDesign);
4347 : }
4348 : } // WalkInIndex=1,NumWalkIns
4349 : } // Numwalkins > 0
4350 :
4351 : // Get circulating fluid type
4352 2 : AlphaNum = 3;
4353 2 : if (lAlphaBlanks(AlphaNum)) {
4354 0 : ShowSevereEmptyField(state, eoh, cAlphaFieldNames(AlphaNum));
4355 0 : ErrorsFound = true;
4356 2 : } else if ((Secondary(SecondaryNum).FluidType = static_cast<SecFluidType>(getEnumValue(secFluidTypeNamesUC, Alphas(AlphaNum)))) ==
4357 : SecFluidType::Invalid) {
4358 0 : ShowSevereInvalidKey(state, eoh, cAlphaFieldNames(AlphaNum), Alphas(AlphaNum));
4359 0 : ErrorsFound = true;
4360 : } // Set FluidType
4361 :
4362 2 : AlphaNum = 4;
4363 2 : Secondary(SecondaryNum).FluidName = Alphas(AlphaNum);
4364 2 : if (Secondary(SecondaryNum).FluidName.empty()) {
4365 0 : ShowSevereEmptyField(state, eoh, cAlphaFieldNames(AlphaNum));
4366 0 : ErrorsFound = true;
4367 2 : } else if ((Secondary(SecondaryNum).glycol = Fluid::GetGlycol(state, Secondary(SecondaryNum).FluidName)) != nullptr) {
4368 1 : } else if ((Secondary(SecondaryNum).refrig = Fluid::GetRefrig(state, Secondary(SecondaryNum).FluidName)) != nullptr) {
4369 : } else {
4370 0 : ShowSevereItemNotFound(state, eoh, cAlphaFieldNames(AlphaNum), Alphas(AlphaNum));
4371 0 : ErrorsFound = true;
4372 : }
4373 :
4374 : // Error messages for refrigerants and glycols already found in fluidproperties
4375 :
4376 : // Note remainder of inputs for secondary don't follow IDD input order because of different interpretations
4377 : // and intermediate calculations used to assign default values for brine type vs. liquid overfeed/phase change loops
4378 :
4379 2 : if (!lNumericBlanks(3)) {
4380 2 : Secondary(SecondaryNum).TEvapDesign = Numbers(3);
4381 : } else {
4382 0 : ShowSevereError(state,
4383 0 : format("{}{}=\"{}\" {} must be specified.",
4384 : RoutineName,
4385 : CurrentModuleObject,
4386 0 : Secondary(SecondaryNum).Name,
4387 : cNumericFieldNames(3)));
4388 0 : ErrorsFound = true;
4389 : } // blank on N3
4390 :
4391 2 : if (!lNumericBlanks(4)) {
4392 2 : Secondary(SecondaryNum).TApproachDifRated = Numbers(4);
4393 : } else {
4394 0 : ShowSevereError(state,
4395 0 : format("{}{}=\"{}\" {} must be specified.",
4396 : RoutineName,
4397 : CurrentModuleObject,
4398 0 : Secondary(SecondaryNum).Name,
4399 : cNumericFieldNames(4)));
4400 0 : ErrorsFound = true;
4401 : } // blank on N4
4402 :
4403 : //^^^^^^^Now look at input and once-only calculations required only for liquid/brine secondary loops^^^^^^^^^^^^^^^^^^^^^^
4404 : // Ensure that required input data is not missing prior to performing the following once-only calculations
4405 2 : if (ErrorsFound) {
4406 0 : ShowFatalError(state,
4407 0 : format("{}{}=\"{}\", Program terminated due to previous condition(s).",
4408 : RoutineName,
4409 : CurrentModuleObject,
4410 0 : Secondary(SecondaryNum).Name));
4411 : } // ErrorsFound
4412 :
4413 2 : Real64 CpBrineRated = 0.0;
4414 2 : Real64 PumpTotRatedFlowVol(0.0); // Rated flow from input pump data, m3/s
4415 2 : Real64 SecondaryFlowVolRated(0.0); // Rated flow of secondary fluid, used to calculate capacity (m3/s)
4416 2 : Real64 TBrineOutRated(0.0); // Rated temperature of circ fluid LEAVING heat exchanger,C
4417 2 : Real64 TBrineInRated(0.0); // Rated temperature of circ fluid going INTO heat exchanger, C
4418 :
4419 2 : if (Secondary(SecondaryNum).FluidType == SecFluidType::AlwaysLiquid) {
4420 1 : if (!lNumericBlanks(5)) {
4421 1 : Secondary(SecondaryNum).TRangeDifRated = Numbers(5);
4422 : } else {
4423 0 : ShowSevereError(state,
4424 0 : format("{}{}=\"{}\", {} must be specified.",
4425 : RoutineName,
4426 : CurrentModuleObject,
4427 0 : Secondary(SecondaryNum).Name,
4428 : cNumericFieldNames(5)));
4429 0 : ShowContinueError(state, format("...when {}=\"FluidAlwaysLiquid\".", cAlphaFieldNames(3)));
4430 0 : ErrorsFound = true;
4431 : } // blank on N5
4432 :
4433 : // Get fluid properties at rated conditions, will be used to calculate ht exchgr effectiveness
4434 1 : TBrineOutRated = Secondary(SecondaryNum).TEvapDesign + Secondary(SecondaryNum).TApproachDifRated;
4435 1 : TBrineInRated = TBrineOutRated + Secondary(SecondaryNum).TRangeDifRated;
4436 1 : Real64 TBrineAverage = (TBrineOutRated + TBrineInRated) / 2.0;
4437 1 : Secondary(SecondaryNum).TBrineAverage = TBrineAverage;
4438 1 : DensityBrineRated = Secondary(SecondaryNum).glycol->getDensity(state, TBrineAverage, TrackMessage);
4439 1 : Secondary(SecondaryNum).DensityBrineRated = DensityBrineRated;
4440 1 : CpBrineRated = Secondary(SecondaryNum).glycol->getSpecificHeat(state, TBrineAverage, TrackMessage);
4441 1 : Secondary(SecondaryNum).CpBrineRated = CpBrineRated;
4442 :
4443 : // Users can input either design brine flow (m3/s), or capacity in W, or both. Now have
4444 : // temperatures needed to calculate either the loop cooling capacity or fluid flow rate, if one was not input
4445 : // Don't need to save as a flow vol as a permanent var because calc whichever is missing here
4446 1 : Real64 FlowMassRated(0.0); // Design mass flow rate of circ fluid in secondary loop(kg/s)
4447 1 : if ((!lNumericBlanks(1)) && (!lNumericBlanks(2))) {
4448 : // Both values input, check for approximate agreement
4449 1 : Secondary(SecondaryNum).CoolingLoadRated = Numbers(1);
4450 1 : SecondaryFlowVolRated = Numbers(2);
4451 1 : FlowMassRated = SecondaryFlowVolRated * DensityBrineRated;
4452 1 : Real64 NominalSecondaryCapacity = FlowMassRated * CpBrineRated * Secondary(SecondaryNum).TRangeDifRated;
4453 1 : Real64 TestDelta = (NominalSecondaryCapacity - Secondary(SecondaryNum).CoolingLoadRated) / NominalSecondaryCapacity;
4454 1 : if (std::abs(TestDelta) > 0.2) {
4455 0 : ShowWarningError(state,
4456 0 : format("{}=\"{} You may wish to check the system definition. Based upon the design flow rate and "
4457 : "range temperature difference, The nominal secondary loop heat exchanger capacity is, "
4458 : "{:.0R} but the specified design capacity is, {:.0R}",
4459 : CurrentModuleObject,
4460 0 : Secondary(SecondaryNum).Name,
4461 : NominalSecondaryCapacity,
4462 0 : Secondary(SecondaryNum).CoolingLoadRated));
4463 : }
4464 0 : } else if (!lNumericBlanks(1)) {
4465 0 : Secondary(SecondaryNum).CoolingLoadRated = Numbers(1);
4466 : // Calc flow vol rated
4467 0 : FlowMassRated = Secondary(SecondaryNum).CoolingLoadRated / (CpBrineRated * Secondary(SecondaryNum).TRangeDifRated);
4468 0 : SecondaryFlowVolRated = FlowMassRated / DensityBrineRated;
4469 0 : } else if (!lNumericBlanks(2)) {
4470 0 : SecondaryFlowVolRated = Numbers(2);
4471 : // Calc rated load
4472 0 : FlowMassRated = SecondaryFlowVolRated * DensityBrineRated;
4473 0 : Secondary(SecondaryNum).CoolingLoadRated = FlowMassRated * CpBrineRated * Secondary(SecondaryNum).TRangeDifRated;
4474 : } else {
4475 0 : ShowSevereError(state,
4476 0 : format(R"({}{}="{}", Either "{}" OR "{}" must be input.)",
4477 : RoutineName,
4478 : CurrentModuleObject,
4479 0 : Secondary(SecondaryNum).Name,
4480 : cNumericFieldNames(1),
4481 : cNumericFieldNames(2)));
4482 0 : ErrorsFound = true;
4483 : } // Capacity Input via either or both options
4484 :
4485 1 : if (!ErrorsFound) {
4486 : // Calculate heat exchanger effectiveness based on rated flow and temperature differences
4487 2 : Secondary(SecondaryNum).HeatExchangeEta =
4488 1 : Secondary(SecondaryNum).CoolingLoadRated /
4489 1 : (FlowMassRated * CpBrineRated * (TBrineInRated - Secondary(SecondaryNum).TEvapDesign));
4490 1 : Secondary(SecondaryNum).TBrineInRated = TBrineInRated;
4491 1 : if (Secondary(SecondaryNum).HeatExchangeEta > 0.99) {
4492 0 : ShowWarningError(
4493 : state,
4494 0 : format("{}=\"{} You may wish to check the system definition. The heat exchanger effectiveness is, {:.2R}",
4495 : CurrentModuleObject,
4496 0 : Secondary(SecondaryNum).Name,
4497 0 : Secondary(SecondaryNum).HeatExchangeEta));
4498 0 : Secondary(SecondaryNum).HeatExchangeEta = 0.99;
4499 : }
4500 : } else {
4501 0 : ShowContinueError(state, "...remainder of this object input skipped due to previous errors");
4502 0 : continue;
4503 : }
4504 :
4505 1 : PumpTotRatedFlowVol = SecondaryFlowVolRated;
4506 1 : if (!lNumericBlanks(7)) {
4507 1 : PumpTotRatedFlowVol = Numbers(7);
4508 : }
4509 :
4510 : } else { // FluidType = FluidTypePhaseChange ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
4511 1 : if (!lNumericBlanks(1)) {
4512 0 : Secondary(SecondaryNum).CoolingLoadRated = Numbers(1);
4513 : } else {
4514 1 : Secondary(SecondaryNum).CoolingLoadRated = NominalTotalCaseCap + NominalTotalWalkInCap;
4515 : // first estimate, will later be adjusted to include pump power
4516 : } // input capacity
4517 :
4518 1 : Secondary(SecondaryNum).TCondense = Secondary(SecondaryNum).TEvapDesign + Secondary(SecondaryNum).TApproachDifRated;
4519 1 : Secondary(SecondaryNum).CircRate = DefaultCircRate;
4520 1 : if (!lNumericBlanks(10)) {
4521 1 : Secondary(SecondaryNum).CircRate = Numbers(10);
4522 : }
4523 :
4524 : DensityPhaseChange =
4525 1 : Secondary(SecondaryNum).refrig->getSatDensity(state, Secondary(SecondaryNum).TCondense, 0.0, TrackMessageAlt);
4526 1 : DeltaHPhaseChange =
4527 1 : Secondary(SecondaryNum).refrig->getSatEnthalpy(state, Secondary(SecondaryNum).TCondense, 1.0, TrackMessageAlt) -
4528 1 : Secondary(SecondaryNum).refrig->getSatEnthalpy(state, Secondary(SecondaryNum).TCondense, 0.0, TrackMessageAlt);
4529 :
4530 : // TotRatedFlowVol= capacity*circrate/deltahphasechange/density
4531 : Real64 CalcTotFlowVol =
4532 1 : Secondary(SecondaryNum).CoolingLoadRated * Secondary(SecondaryNum).CircRate / (DensityPhaseChange * DeltaHPhaseChange);
4533 1 : PumpTotRatedFlowVol = CalcTotFlowVol;
4534 1 : if (!lNumericBlanks(7)) {
4535 0 : PumpTotRatedFlowVol = Numbers(7);
4536 0 : Real64 CalcCircRate = DensityPhaseChange * DeltaHPhaseChange * PumpTotRatedFlowVol / Secondary(SecondaryNum).CoolingLoadRated;
4537 0 : Real64 DiffCircRates = (CalcCircRate - Secondary(SecondaryNum).CircRate) / Secondary(SecondaryNum).CircRate;
4538 0 : if (std::abs(DiffCircRates) > 0.3) {
4539 0 : ShowWarningError(state,
4540 0 : format("{}=\"{} {} Produces a circulating rate of {:.2R} ; A circulating rate of {:.2R} would need "
4541 : "a {} of {:.2R} m3/s",
4542 : CurrentModuleObject,
4543 0 : Secondary(SecondaryNum).Name,
4544 : cNumericFieldNames(7),
4545 : CalcCircRate,
4546 0 : Secondary(SecondaryNum).CircRate,
4547 : cNumericFieldNames(7),
4548 : CalcTotFlowVol));
4549 : } // warning check on pump flow rate vs circ rate input
4550 : } // blank pump flow rate
4551 1 : SecondaryFlowVolRated = PumpTotRatedFlowVol;
4552 :
4553 : } // fluid type AlwaysLiquid or PhaseChange ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
4554 :
4555 : // Read number of pumps (or pump stages) in secondary loop
4556 2 : int NumPumps = 1; // default value
4557 2 : if ((!lNumericBlanks(6)) && (Numbers(6) >= 1)) {
4558 2 : NumPumps = Numbers(6);
4559 : }
4560 2 : Secondary(SecondaryNum).NumPumps = NumPumps;
4561 : // Get pump power (users can input either power in W or head in Pa or both)
4562 : // Assume pump impeller efficiency is 0.78 (consistent with E+ Pump auto-sizing assumption)
4563 : // Assume pump motor efficiency is 0.85 (Goulds Pumps motor data sheet)
4564 : // It is important that tot rated head must be for specific fluid
4565 2 : Real64 PumpTotRatedHead(0.0); // Total pump rated head on secondary loop (Pa)
4566 :
4567 2 : if ((!lNumericBlanks(8)) && (!lNumericBlanks(9))) {
4568 0 : Secondary(SecondaryNum).PumpTotRatedPower = Numbers(8);
4569 0 : PumpTotRatedHead = Numbers(9);
4570 0 : Real64 ErrSecondPumpPower = (Secondary(SecondaryNum).PumpTotRatedPower -
4571 0 : PumpTotRatedFlowVol * PumpTotRatedHead / (PumpImpellerEfficiency * PumpMotorEfficiency)) /
4572 0 : Secondary(SecondaryNum).PumpTotRatedPower;
4573 0 : if (std::abs(ErrSecondPumpPower) > 0.35) {
4574 0 : ShowWarningError(
4575 : state,
4576 0 : format("{}=\"{} Input value for {} not consistent with input value for {}. {} will be used",
4577 : CurrentModuleObject,
4578 0 : Secondary(SecondaryNum).Name,
4579 : cNumericFieldNames(9),
4580 : cNumericFieldNames(8),
4581 : cNumericFieldNames(8))); // generous diff allowed because comparing to my assumed impeller and motor effs
4582 : }
4583 2 : } else if (!lNumericBlanks(8)) {
4584 0 : Secondary(SecondaryNum).PumpTotRatedPower = Numbers(8);
4585 2 : } else if (!lNumericBlanks(9)) {
4586 2 : PumpTotRatedHead = Numbers(9);
4587 2 : Secondary(SecondaryNum).PumpTotRatedPower =
4588 2 : PumpTotRatedFlowVol * PumpTotRatedHead / (PumpImpellerEfficiency * PumpMotorEfficiency);
4589 : } else {
4590 0 : ShowSevereError(state,
4591 0 : format(R"({}{}="{}", Either "{}" OR "{}" must be input.)",
4592 : RoutineName,
4593 : CurrentModuleObject,
4594 0 : Secondary(SecondaryNum).Name,
4595 : cNumericFieldNames(8),
4596 : cNumericFieldNames(9)));
4597 0 : ErrorsFound = true;
4598 : } // Either or pump power Input variations (head or power)
4599 :
4600 : // Get pump drive type
4601 2 : AlphaNum = 5;
4602 2 : if (lAlphaBlanks(AlphaNum)) {
4603 1 : Secondary(SecondaryNum).PumpControlType = SecPumpCtrl::Constant; // default
4604 1 : } else if ((Secondary(SecondaryNum).PumpControlType = static_cast<SecPumpCtrl>(getEnumValue(secPumpCtrlNamesUC, Alphas(AlphaNum)))) ==
4605 : SecPumpCtrl::Invalid) {
4606 0 : ShowSevereInvalidKey(state, eoh, cAlphaFieldNames(AlphaNum), Alphas(AlphaNum));
4607 0 : ErrorsFound = true;
4608 : }
4609 :
4610 : // Print warning if Pump Control = Constant and Variable Speed Curve is specified.
4611 2 : if ((Secondary(SecondaryNum).PumpControlType == SecPumpCtrl::Constant) && (!lAlphaBlanks(AlphaNum + 1))) {
4612 0 : ShowWarningError(state,
4613 0 : format(R"({}{}="{}", A {} is specified even though {} is "CONSTANT".)",
4614 : RoutineName,
4615 : CurrentModuleObject,
4616 0 : Secondary(SecondaryNum).Name,
4617 : cAlphaFieldNames(AlphaNum + 1),
4618 : cAlphaFieldNames(AlphaNum)));
4619 0 : ShowContinueError(state,
4620 0 : format("The secondary loop pump(s) will be modeled as constant speed and the {} will be ignored.",
4621 : cAlphaFieldNames(AlphaNum + 1)));
4622 : }
4623 :
4624 2 : if (Secondary(SecondaryNum).PumpControlType == SecPumpCtrl::Constant) {
4625 : // Set incremental flow and power amounts for pump dispatch
4626 1 : Secondary(SecondaryNum).PumpIncrementFlowVol = PumpTotRatedFlowVol / NumPumps;
4627 1 : Secondary(SecondaryNum).PumpIncrementPower = Secondary(SecondaryNum).PumpTotRatedPower / NumPumps;
4628 : } else { // Variable speed drive need to read in power curve
4629 1 : AlphaNum = 6;
4630 1 : Secondary(SecondaryNum).VarSpeedCurvePtr = Curve::GetCurveIndex(state, Alphas(AlphaNum)); // convert curve name to number
4631 1 : if (Secondary(SecondaryNum).VarSpeedCurvePtr == 0) {
4632 0 : ShowSevereItemNotFound(state, eoh, cAlphaFieldNames(AlphaNum), Alphas(AlphaNum));
4633 0 : ErrorsFound = true;
4634 : }
4635 4 : ErrorsFound |= Curve::CheckCurveDims(state,
4636 1 : Secondary(SecondaryNum).VarSpeedCurvePtr, // Curve index
4637 : {1}, // Valid dimensions
4638 : RoutineName, // Routine name
4639 : CurrentModuleObject, // Object Type
4640 1 : Secondary(SecondaryNum).Name, // Object Name
4641 1 : cAlphaFieldNames(AlphaNum)); // Field Name
4642 : } // input power conditions/levels for constant or variable speed pump drives
4643 :
4644 : // Default non-hermetic motor eff at 85% and all shaft power goes to heat in fluid
4645 : // In a semi-hermetic motor, assume all power to motor goes to heat in fluid
4646 2 : Secondary(SecondaryNum).PumpPowerToHeat = PumpMotorEfficiency;
4647 2 : NumNum = 11;
4648 2 : if (!lNumericBlanks(NumNum)) {
4649 2 : if ((0.5 <= Numbers(NumNum)) && (1.0 >= Numbers(NumNum))) {
4650 2 : Secondary(SecondaryNum).PumpPowerToHeat = Numbers(NumNum);
4651 : } else {
4652 0 : ShowWarningError(state,
4653 0 : format("{}{}=\"{}\" {} must be between 0.5 and 1.0. Default value of : {:.3R} will be used",
4654 : RoutineName,
4655 : CurrentModuleObject,
4656 0 : Secondary(SecondaryNum).Name,
4657 : cNumericFieldNames(NumNum),
4658 : PumpMotorEfficiency));
4659 : } // range of pump moter heat to fluid
4660 : } // blank input for pumppowertoheat
4661 :
4662 : // Distribution piping heat gain - optional
4663 : // Input UA and Zone containing the bulk of the secondary coolant distribution piping
4664 : // This Zone ID will be used to determine the temperature used for distribution piping heat gain.
4665 : // Zone Id is only required if Sum UA Distribution Piping >0.0
4666 : // Get the Zone node number from the zone name entered by the user
4667 2 : Secondary(SecondaryNum).SumUADistPiping = 0.0;
4668 2 : AlphaNum = 7;
4669 2 : NumNum = 12;
4670 2 : if (!lNumericBlanks(NumNum) && !lAlphaBlanks(AlphaNum)) {
4671 2 : Secondary(SecondaryNum).SumUADistPiping = Numbers(NumNum);
4672 2 : Secondary(SecondaryNum).DistPipeZoneNum = Util::FindItemInList(Alphas(AlphaNum), state.dataHeatBal->Zone);
4673 4 : Secondary(SecondaryNum).DistPipeZoneNodeNum =
4674 2 : DataZoneEquipment::GetSystemNodeNumberForZone(state, Secondary(SecondaryNum).DistPipeZoneNum);
4675 :
4676 2 : if (Secondary(SecondaryNum).DistPipeZoneNum == 0) {
4677 0 : ShowSevereError(state,
4678 0 : format("{}{}=\"{}\", invalid {} not valid: {}",
4679 : RoutineName,
4680 : CurrentModuleObject,
4681 0 : Secondary(SecondaryNum).Name,
4682 : cAlphaFieldNames(AlphaNum),
4683 : Alphas(AlphaNum)));
4684 0 : ErrorsFound = true;
4685 : } else {
4686 2 : state.dataRefrigCase->RefrigPresentInZone(Secondary(SecondaryNum).DistPipeZoneNum) = true;
4687 : }
4688 :
4689 2 : if (Secondary(SecondaryNum).DistPipeZoneNodeNum == 0) {
4690 0 : ShowSevereError(
4691 : state,
4692 0 : format("{}{}=\"{}\" System Node Number not found for {} = {} even though {} is greater than zero. Distribution "
4693 : "piping heat gain cannot be calculated unless a controlled Zone (appear in a ZoneHVAC:EquipmentConnections "
4694 : "object.) is defined to determine the environmental temperature surrounding the piping.",
4695 : RoutineName,
4696 : CurrentModuleObject,
4697 0 : Secondary(SecondaryNum).Name,
4698 : cAlphaFieldNames(AlphaNum),
4699 : Alphas(AlphaNum),
4700 : cNumericFieldNames(NumNum)));
4701 0 : ErrorsFound = true;
4702 : }
4703 0 : } else if (!lNumericBlanks(NumNum) && lAlphaBlanks(AlphaNum)) {
4704 0 : ShowWarningError(
4705 : state,
4706 0 : format("{}{}=\"{}\", {} not found even though {} is greater than zero. Distribution piping heat gain will not be "
4707 : "calculated unless a Zone is defined to determine the environmental temperature surrounding the piping.",
4708 : RoutineName,
4709 : CurrentModuleObject,
4710 0 : Secondary(SecondaryNum).Name,
4711 : cAlphaFieldNames(AlphaNum),
4712 : cNumericFieldNames(NumNum)));
4713 0 : } else if (lNumericBlanks(NumNum) && !lAlphaBlanks(AlphaNum)) {
4714 0 : ShowWarningError(
4715 : state,
4716 0 : format("{}{}=\"{}\", {} will not be used and distribution piping heat gain will not be calculated because {} was blank.",
4717 : RoutineName,
4718 : CurrentModuleObject,
4719 0 : Secondary(SecondaryNum).Name,
4720 : cAlphaFieldNames(AlphaNum),
4721 : cNumericFieldNames(NumNum)));
4722 : } // distribution piping
4723 :
4724 : // Separator/receiver heat gain - optional
4725 : // Input UA and Zone containing the Separator/receiver
4726 : // This Zone ID will be used to determine the temperature used for Separator/receiver heat gain.
4727 : // Zone Id is only required if Sum UA Separator/receiver >0.0
4728 : // Get the Zone node number from the zone name entered by the user
4729 2 : Secondary(SecondaryNum).SumUAReceiver = 0.0;
4730 2 : AlphaNum = 8;
4731 2 : NumNum = 13;
4732 2 : if (!lNumericBlanks(NumNum) && !lAlphaBlanks(AlphaNum)) {
4733 1 : Secondary(SecondaryNum).SumUAReceiver = Numbers(NumNum);
4734 1 : Secondary(SecondaryNum).ReceiverZoneNum = Util::FindItemInList(Alphas(AlphaNum), state.dataHeatBal->Zone);
4735 2 : Secondary(SecondaryNum).ReceiverZoneNodeNum =
4736 1 : DataZoneEquipment::GetSystemNodeNumberForZone(state, Secondary(SecondaryNum).ReceiverZoneNum);
4737 :
4738 1 : if (Secondary(SecondaryNum).ReceiverZoneNum == 0) {
4739 0 : ShowSevereError(state,
4740 0 : format("{}{}=\"{}\", invalid {} not valid: {}",
4741 : RoutineName,
4742 : CurrentModuleObject,
4743 0 : Secondary(SecondaryNum).Name,
4744 : cAlphaFieldNames(AlphaNum),
4745 : Alphas(AlphaNum)));
4746 0 : ErrorsFound = true;
4747 : } else {
4748 1 : state.dataRefrigCase->RefrigPresentInZone(Secondary(SecondaryNum).ReceiverZoneNum) = true;
4749 : }
4750 1 : if (Secondary(SecondaryNum).ReceiverZoneNodeNum == 0) {
4751 0 : ShowSevereError(
4752 : state,
4753 0 : format("{}{}=\"{}\" System Node Number not found for {} = {} even though {} is greater than zero. Receiver heat gain "
4754 : "cannot be calculated unless a controlled Zone (appear in a ZoneHVAC:EquipmentConnections object.) is defined "
4755 : "to determine the environmental temperature surrounding the Receiver.",
4756 : RoutineName,
4757 : CurrentModuleObject,
4758 0 : Secondary(SecondaryNum).Name,
4759 : cAlphaFieldNames(AlphaNum),
4760 : Alphas(AlphaNum),
4761 : cNumericFieldNames(NumNum)));
4762 0 : ErrorsFound = true;
4763 : }
4764 1 : } else if (!lNumericBlanks(NumNum) && lAlphaBlanks(AlphaNum)) {
4765 0 : ShowWarningError(
4766 : state,
4767 0 : format("{}{}=\"{}\", {} not found even though {} is greater than zero. Receiver heat gain will not be calculated unless "
4768 : "a Zone is defined to determine the environmental temperature surrounding the Receiver.",
4769 : RoutineName,
4770 : CurrentModuleObject,
4771 0 : Secondary(SecondaryNum).Name,
4772 : cAlphaFieldNames(AlphaNum),
4773 : cNumericFieldNames(NumNum)));
4774 1 : } else if (lNumericBlanks(NumNum) && !lAlphaBlanks(AlphaNum)) {
4775 0 : ShowWarningError(state,
4776 0 : format("{}{}=\"{}\", {} will not be used and Receiver heat gain will not be calculated because {} was blank.",
4777 : RoutineName,
4778 : CurrentModuleObject,
4779 0 : Secondary(SecondaryNum).Name,
4780 : cAlphaFieldNames(AlphaNum),
4781 : cNumericFieldNames(NumNum)));
4782 : } // Receiver
4783 :
4784 2 : NumNum = 14;
4785 2 : Secondary(SecondaryNum).ChillerRefInventory = 0.0;
4786 2 : if (!lNumericBlanks(NumNum)) {
4787 0 : Secondary(SecondaryNum).ChillerRefInventory = Numbers(NumNum);
4788 : }
4789 2 : if (Secondary(SecondaryNum).ChillerRefInventory < 0.0) {
4790 0 : Secondary(SecondaryNum).ChillerRefInventory = 0.0;
4791 0 : ShowWarningError(state,
4792 0 : format("{}{}=\"{}\", The value specified for {} is less than zero. The default value of zero will be used.",
4793 : RoutineName,
4794 : CurrentModuleObject,
4795 0 : Secondary(SecondaryNum).Name,
4796 : cNumericFieldNames(NumNum)));
4797 : }
4798 :
4799 2 : AlphaNum = 9;
4800 2 : if (!lAlphaBlanks(AlphaNum)) {
4801 0 : Secondary(SecondaryNum).EndUseSubcategory = Alphas(AlphaNum);
4802 : }
4803 :
4804 : // Error checks on secondary loop:
4805 : // Note, rated capacities can be far off from operating capacities, but rough checks here
4806 : // (don't include dist piping or receiver heat gains).
4807 : // Load limit logic here (maxvolflow and maxload used in calcs later)
4808 2 : Secondary(SecondaryNum).MaxVolFlow = min(SecondaryFlowVolRated, PumpTotRatedFlowVol);
4809 2 : Real64 NominalSecondaryRefLoad = NominalTotalCaseCap + NominalTotalWalkInCap + Secondary(SecondaryNum).PumpTotRatedPower;
4810 :
4811 2 : if (Secondary(SecondaryNum).FluidType == SecFluidType::AlwaysLiquid) {
4812 1 : if (TBrineOutRated > (Secondary(SecondaryNum).TMinNeeded + 0.5)) {
4813 0 : ShowWarningError(state,
4814 0 : format("{}=\"{} The design brine temperature to the refrigeration loads: {:.1R} ;",
4815 : CurrentModuleObject,
4816 0 : Secondary(SecondaryNum).Name,
4817 : TBrineOutRated));
4818 0 : ShowContinueError(state,
4819 0 : format(" is greater than the design inlet temperature for at least one of the cases or walkins: {:.1R}",
4820 0 : Secondary(SecondaryNum).TMinNeeded));
4821 0 : ShowContinueError(
4822 : state, " Compare your Approach and Evaporating Temperature to the design inlet temperatures needed for the loads.");
4823 : // ErrorsFound = .TRUE.
4824 : } // Tbrine out warning
4825 1 : Real64 CapacityAtMaxVolFlow = Secondary(SecondaryNum).MaxVolFlow * Secondary(SecondaryNum).HeatExchangeEta *
4826 1 : (CpBrineRated * DensityBrineRated) * (TBrineInRated - Secondary(SecondaryNum).TEvapDesign);
4827 1 : Secondary(SecondaryNum).MaxLoad = min(Secondary(SecondaryNum).CoolingLoadRated, CapacityAtMaxVolFlow);
4828 : Real64 DeltaCap1 =
4829 1 : std::abs((Secondary(SecondaryNum).CoolingLoadRated - CapacityAtMaxVolFlow) / Secondary(SecondaryNum).CoolingLoadRated);
4830 1 : if (DeltaCap1 > (0.3)) { // diff between chiller rating and capacity at max flow > 30%
4831 0 : ShowWarningError(state,
4832 0 : format("{}=\"{}\" You may wish to check the system sizing. The nominal secondary loop heat exchanger "
4833 : "capacity is {:.0R} But the capacity based upon the maximum flow rate is {:.0R}",
4834 : CurrentModuleObject,
4835 0 : Secondary(SecondaryNum).Name,
4836 0 : Secondary(SecondaryNum).CoolingLoadRated,
4837 : CapacityAtMaxVolFlow));
4838 : } // DeltaCap1 > .3
4839 : } else { // Fluid type phase change !^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
4840 1 : if (lNumericBlanks(1)) { // Chiller/evaporator capacity was not specified
4841 1 : if (lNumericBlanks(7)) { // Pump power was not input, calc based on flow and head
4842 : // need to refine because capacity calculated, but needs to include pump power (which was prev
4843 : // estimated based upon capacity which had been estimated as sum of case and walk-in capacities)
4844 1 : PumpTotRatedFlowVol =
4845 1 : NominalSecondaryRefLoad * Secondary(SecondaryNum).CircRate / (DensityPhaseChange * DeltaHPhaseChange);
4846 2 : Secondary(SecondaryNum).PumpTotRatedPower =
4847 1 : PumpTotRatedFlowVol * PumpTotRatedHead / (PumpImpellerEfficiency * PumpMotorEfficiency);
4848 : // need to recalc nominal load with new pump power value
4849 1 : NominalSecondaryRefLoad = NominalTotalCaseCap + NominalTotalWalkInCap + Secondary(SecondaryNum).PumpTotRatedPower;
4850 1 : if (Secondary(SecondaryNum).PumpControlType == SecPumpCtrl::Constant) {
4851 : // Set incremental flow and power amounts for pump dispatch
4852 0 : Secondary(SecondaryNum).PumpIncrementFlowVol = PumpTotRatedFlowVol / NumPumps;
4853 0 : Secondary(SecondaryNum).PumpIncrementPower = Secondary(SecondaryNum).PumpTotRatedPower / NumPumps;
4854 : } // constant speed pump
4855 : } // Pump power was not specified
4856 1 : Secondary(SecondaryNum).CoolingLoadRated = NominalSecondaryRefLoad;
4857 : } // Chiller/evap capacity was not specified
4858 1 : Secondary(SecondaryNum).MaxLoad = Secondary(SecondaryNum).CoolingLoadRated;
4859 : } // SecFluidType
4860 :
4861 : Real64 DeltaCap2 =
4862 2 : std::abs((Secondary(SecondaryNum).CoolingLoadRated - NominalSecondaryRefLoad) / Secondary(SecondaryNum).CoolingLoadRated);
4863 2 : if (DeltaCap2 > (0.3)) { // diff between chiller rating and sum of nominal loads > 30%
4864 0 : ShowWarningError(
4865 : state,
4866 0 : format("{}=\"{}\" You may wish to check the system sizing. Total nominal refrigerating load is {:.0R} (Including cases, "
4867 : "walk-ins, and pump heat). The nominal secondary loop heat exchanger capacity is {:.0R}",
4868 : CurrentModuleObject,
4869 0 : Secondary(SecondaryNum).Name,
4870 : NominalSecondaryRefLoad,
4871 0 : Secondary(SecondaryNum).CoolingLoadRated));
4872 : }
4873 : // compare rated xt xchanger brine flow to the total rated pump flow
4874 2 : if (SecondaryFlowVolRated > (1.1 * PumpTotRatedFlowVol)) {
4875 0 : ShowWarningError(state,
4876 0 : format("{}=\"{}\" You may wish to check the pump sizing. Total nominal brine flow is {:.0R} m3/s, but the "
4877 : "total nominal pump flow rate is: {:.0R} m3/s. ",
4878 : CurrentModuleObject,
4879 0 : Secondary(SecondaryNum).Name,
4880 : SecondaryFlowVolRated,
4881 : PumpTotRatedFlowVol));
4882 : }
4883 :
4884 : } // Secondary Loops
4885 : } //( IF (NumSimulationSecondarySystems > 0)
4886 :
4887 : //************ END SECONDARY SYSTEM INPUT **************
4888 :
4889 : //************ START Compressor INPUT **************
4890 :
4891 16 : CurrentModuleObject = "Refrigeration:Compressor";
4892 198 : for (int CompNum = 1; CompNum <= state.dataRefrigCase->NumSimulationCompressors; ++CompNum) {
4893 182 : state.dataInputProcessing->inputProcessor->getObjectItem(state,
4894 : CurrentModuleObject,
4895 : CompNum,
4896 : Alphas,
4897 : NumAlphas,
4898 : Numbers,
4899 : NumNumbers,
4900 : IOStatus,
4901 : lNumericBlanks,
4902 : lAlphaBlanks,
4903 : cAlphaFieldNames,
4904 : cNumericFieldNames);
4905 182 : ErrorObjectHeader eoh{routineName, CurrentModuleObject, Alphas(1)};
4906 :
4907 182 : Compressor(CompNum).Name = Alphas(1);
4908 :
4909 182 : Compressor(CompNum).ElecPowerCurvePtr = Curve::GetCurveIndex(state, Alphas(2)); // convert curve name to number
4910 182 : if ((!lAlphaBlanks(2)) && Compressor(CompNum).ElecPowerCurvePtr == 0) {
4911 0 : ShowSevereItemNotFound(state, eoh, cAlphaFieldNames(2), Alphas(2));
4912 0 : ErrorsFound = true;
4913 : }
4914 :
4915 182 : Compressor(CompNum).CapacityCurvePtr = Curve::GetCurveIndex(state, Alphas(3)); // convert curve name to number
4916 182 : if ((!lAlphaBlanks(3)) && Compressor(CompNum).CapacityCurvePtr == 0) {
4917 0 : ShowSevereItemNotFound(state, eoh, cAlphaFieldNames(3), Alphas(3));
4918 0 : ErrorsFound = true;
4919 : }
4920 :
4921 : // Get superheat rating type (Either N1 or N2 Must be input)
4922 182 : if (((!lNumericBlanks(1)) && (!lNumericBlanks(2))) || (lNumericBlanks(1) && lNumericBlanks(2))) {
4923 0 : ShowSevereError(state,
4924 0 : format("{}{}=\"{}\"One, and Only One of {} or {}",
4925 : RoutineName,
4926 : CurrentModuleObject,
4927 0 : Compressor(CompNum).Name,
4928 : cNumericFieldNames(1),
4929 : cNumericFieldNames(2)));
4930 0 : ShowContinueError(state, "Must Be Entered. Check input value choices.");
4931 0 : ErrorsFound = true;
4932 182 : } else if (!lNumericBlanks(1)) {
4933 83 : Compressor(CompNum).SuperheatRatingType = CompRatingType::Superheat;
4934 83 : Compressor(CompNum).RatedSuperheat = Numbers(1);
4935 99 : } else if (!lNumericBlanks(2)) {
4936 99 : Compressor(CompNum).SuperheatRatingType = CompRatingType::ReturnGasTemperature;
4937 99 : Compressor(CompNum).RatedSuperheat = Numbers(2);
4938 : } // Set SuperheatRatingType
4939 :
4940 : // Get subcool rating type (Either N3 or N4 Must be input)
4941 182 : if (((!lNumericBlanks(3)) && (!lNumericBlanks(4))) || (lNumericBlanks(3) && lNumericBlanks(4))) {
4942 0 : ShowSevereError(state,
4943 0 : format("{}{}=\"{}\" One, and Only One of {} or {}",
4944 : RoutineName,
4945 : CurrentModuleObject,
4946 0 : Compressor(CompNum).Name,
4947 : cNumericFieldNames(3),
4948 : cNumericFieldNames(4)));
4949 0 : ShowContinueError(state, "Must Be Entered. Check input value choices.");
4950 0 : ErrorsFound = true;
4951 182 : } else if (!lNumericBlanks(3)) {
4952 19 : Compressor(CompNum).SubcoolRatingType = CompRatingType::LiquidTemperature;
4953 19 : Compressor(CompNum).RatedSubcool = Numbers(3);
4954 163 : } else if (!lNumericBlanks(4)) {
4955 163 : Compressor(CompNum).SubcoolRatingType = CompRatingType::Subcooling;
4956 163 : Compressor(CompNum).RatedSubcool = Numbers(4);
4957 : } // Set SubcoolRatingType
4958 :
4959 182 : Compressor(CompNum).EndUseSubcategory = "General";
4960 182 : if (!lAlphaBlanks(4)) {
4961 22 : Compressor(CompNum).EndUseSubcategory = Alphas(4);
4962 : }
4963 :
4964 : // If the compressor is a transcritical CO compressor, get transcritical power and capacity curves
4965 182 : if (lAlphaBlanks(5)) {
4966 176 : Compressor(CompNum).TransFlag = false;
4967 : // For some reason, Alkphas(5) is not uppercased?
4968 6 : } else if (CriticalType crit = static_cast<CriticalType>(getEnumValue(criticalTypeNamesUC, Util::makeUPPER(Alphas(5))));
4969 : crit != CriticalType::Invalid) {
4970 6 : Compressor(CompNum).TransFlag = static_cast<bool>(crit);
4971 : } else {
4972 0 : ShowSevereInvalidKey(state, eoh, cAlphaFieldNames(5), Alphas(5));
4973 0 : ErrorsFound = true;
4974 : }
4975 :
4976 182 : if (Compressor(CompNum).TransFlag) {
4977 3 : if (lAlphaBlanks(6)) {
4978 0 : ShowSevereEmptyField(state, eoh, cAlphaFieldNames(6));
4979 0 : ErrorsFound = true;
4980 3 : } else if ((Compressor(CompNum).TransElecPowerCurvePtr = Curve::GetCurveIndex(state, Alphas(6))) == 0) {
4981 0 : ShowSevereItemNotFound(state, eoh, cAlphaFieldNames(6), Alphas(6));
4982 0 : ErrorsFound = true;
4983 : }
4984 :
4985 3 : if (lAlphaBlanks(7)) {
4986 0 : ShowSevereEmptyField(state, eoh, cAlphaFieldNames(7));
4987 0 : ErrorsFound = true;
4988 3 : } else if ((Compressor(CompNum).TransCapacityCurvePtr = Curve::GetCurveIndex(state, Alphas(7))) == 0) {
4989 0 : ShowSevereItemNotFound(state, eoh, cAlphaFieldNames(7), Alphas(7));
4990 0 : ErrorsFound = true;
4991 : }
4992 : } else {
4993 179 : if (!lAlphaBlanks(6)) {
4994 0 : ShowWarningNonEmptyField(state, eoh, cAlphaFieldNames(6), cAlphaFieldNames(5), Alphas(5));
4995 : }
4996 179 : if (!lAlphaBlanks(7)) {
4997 0 : ShowWarningNonEmptyField(state, eoh, cAlphaFieldNames(7), cAlphaFieldNames(5), Alphas(5));
4998 : }
4999 : }
5000 :
5001 : } // RefrigCompressor
5002 :
5003 : //************ END Compressor INPUT **************
5004 :
5005 : //************ START Subcooler INPUT **************
5006 16 : if (state.dataRefrigCase->NumSimulationSubcoolers > 0) {
5007 1 : CurrentModuleObject = "Refrigeration:Subcooler";
5008 1 : state.dataRefrigCase->NumSimulationMechSubcoolers = 0;
5009 3 : for (int SubcoolerNum = 1; SubcoolerNum <= state.dataRefrigCase->NumSimulationSubcoolers; ++SubcoolerNum) {
5010 2 : state.dataInputProcessing->inputProcessor->getObjectItem(state,
5011 : CurrentModuleObject,
5012 : SubcoolerNum,
5013 : Alphas,
5014 : NumAlphas,
5015 : Numbers,
5016 : NumNumbers,
5017 : IOStatus,
5018 : lNumericBlanks,
5019 : lAlphaBlanks,
5020 : cAlphaFieldNames,
5021 : cNumericFieldNames);
5022 2 : ErrorObjectHeader eoh{routineName, CurrentModuleObject, Alphas(1)};
5023 2 : Subcooler(SubcoolerNum).Name = Alphas(1);
5024 :
5025 : // Get subcooler type
5026 2 : if ((Subcooler(SubcoolerNum).subcoolerType = static_cast<SubcoolerType>(getEnumValue(subcoolerTypeNamesUC, Alphas(2)))) ==
5027 : SubcoolerType::Invalid) {
5028 0 : ShowSevereInvalidKey(state, eoh, cAlphaFieldNames(2), Alphas(2));
5029 0 : ErrorsFound = true;
5030 2 : } else if (Subcooler(SubcoolerNum).subcoolerType == SubcoolerType::Mechanical) {
5031 1 : ++state.dataRefrigCase->NumSimulationMechSubcoolers;
5032 : }
5033 :
5034 2 : switch (Subcooler(SubcoolerNum).subcoolerType) {
5035 1 : case SubcoolerType::LiquidSuction: {
5036 1 : Subcooler(SubcoolerNum).LiqSuctDesignDelT = 10.0; // default value
5037 1 : if (!lNumericBlanks(1)) {
5038 1 : Subcooler(SubcoolerNum).LiqSuctDesignDelT = Numbers(1);
5039 : }
5040 1 : if (Subcooler(SubcoolerNum).LiqSuctDesignDelT < 0.0) {
5041 0 : ShowSevereError(state,
5042 0 : format("{}{}=\"{}\" {} cannot be less than zero.",
5043 : RoutineName,
5044 : CurrentModuleObject,
5045 0 : Subcooler(SubcoolerNum).Name,
5046 : cNumericFieldNames(1)));
5047 0 : ErrorsFound = true;
5048 : }
5049 :
5050 1 : if (!lNumericBlanks(2)) {
5051 1 : Subcooler(SubcoolerNum).LiqSuctDesignTliqIn = Numbers(2);
5052 : } else {
5053 0 : ShowSevereError(state,
5054 0 : format("{}{}=\"{}\" {} must be specified.",
5055 : RoutineName,
5056 : CurrentModuleObject,
5057 0 : Subcooler(SubcoolerNum).Name,
5058 : cNumericFieldNames(2)));
5059 0 : ErrorsFound = true;
5060 : }
5061 :
5062 1 : if (!lNumericBlanks(3)) {
5063 1 : Subcooler(SubcoolerNum).LiqSuctDesignTvapIn = Numbers(3);
5064 : } else {
5065 0 : ShowSevereError(state,
5066 0 : format("{}{}=\"{}\" {} must be specified.",
5067 : RoutineName,
5068 : CurrentModuleObject,
5069 0 : Subcooler(SubcoolerNum).Name,
5070 : cNumericFieldNames(3)));
5071 0 : ErrorsFound = true;
5072 : }
5073 1 : if (Subcooler(SubcoolerNum).LiqSuctDesignTvapIn > Subcooler(SubcoolerNum).LiqSuctDesignTliqIn) {
5074 0 : ShowSevereError(state,
5075 0 : format("{}{}=\"{}\" {} cannot be greater than {}.",
5076 : RoutineName,
5077 : CurrentModuleObject,
5078 0 : Subcooler(SubcoolerNum).Name,
5079 : cNumericFieldNames(3),
5080 : cNumericFieldNames(2)));
5081 0 : ErrorsFound = true;
5082 : } // error check
5083 1 : } break;
5084 1 : case SubcoolerType::Mechanical: {
5085 1 : Subcooler(SubcoolerNum).MechSourceSys = Alphas(3);
5086 : // Error check on system name comes later after systems have been read
5087 :
5088 1 : if (!lNumericBlanks(4)) {
5089 1 : Subcooler(SubcoolerNum).MechControlTliqOut = Numbers(4);
5090 : } else {
5091 0 : ShowSevereError(state,
5092 0 : format("{}{}=\"{}\" {} must be specified.",
5093 : RoutineName,
5094 : CurrentModuleObject,
5095 0 : Subcooler(SubcoolerNum).Name,
5096 : cNumericFieldNames(4)));
5097 0 : ErrorsFound = true;
5098 : } // error check
5099 1 : } break;
5100 0 : default:
5101 0 : break;
5102 : }
5103 : } // Subcooler Input
5104 : } // If there are subcoolers
5105 :
5106 : // ********END SUBCOOLER INPUTS ************
5107 :
5108 : //**** Read TransferLoad Lists **********************************************************
5109 16 : if (state.dataRefrigCase->NumSimulationTransferLoadLists > 0) {
5110 1 : CurrentModuleObject = "Refrigeration:TransferLoadList";
5111 2 : for (int ListNum = 1; ListNum <= state.dataRefrigCase->NumSimulationTransferLoadLists; ++ListNum) {
5112 1 : state.dataInputProcessing->inputProcessor->getObjectItem(state,
5113 : CurrentModuleObject,
5114 : ListNum,
5115 : Alphas,
5116 : NumAlphas,
5117 : Numbers,
5118 : NumNumbers,
5119 : IOStatus,
5120 : lNumericBlanks,
5121 : lAlphaBlanks,
5122 : cAlphaFieldNames,
5123 : cNumericFieldNames);
5124 1 : Util::IsNameEmpty(state, Alphas(1), CurrentModuleObject, ErrorsFound);
5125 :
5126 1 : TransferLoadList(ListNum).Name = Alphas(1);
5127 :
5128 : // Transfer load list alphas include TransferLoadList name and one name for each Secondary or Cascade Condenser in list
5129 : // below allocates larger than needed (each allocated to sum of both), but avoids two loops through input fields
5130 1 : int NumTotalLoadsOnList = NumAlphas - 1;
5131 1 : if (!allocated(TransferLoadList(ListNum).CascadeLoadItemNum)) {
5132 1 : TransferLoadList(ListNum).CascadeLoadItemNum.allocate(NumTotalLoadsOnList);
5133 : }
5134 1 : if (!allocated(TransferLoadList(ListNum).SecondaryItemNum)) {
5135 1 : TransferLoadList(ListNum).SecondaryItemNum.allocate(NumTotalLoadsOnList);
5136 : }
5137 :
5138 1 : int NumSecondarysOnList = 0;
5139 1 : int NumCascadeLoadsOnList = 0;
5140 2 : for (int NumLoad = 1; NumLoad <= NumTotalLoadsOnList; ++NumLoad) {
5141 1 : int AlphaListNum = 1 + NumLoad;
5142 1 : int LoadCascadeNum = 0;
5143 1 : int LoadSecondaryNum = 0;
5144 1 : if (state.dataRefrigCase->NumRefrigCondensers > 0) {
5145 1 : LoadCascadeNum = Util::FindItemInList(Alphas(AlphaListNum), Condenser);
5146 : }
5147 1 : if (state.dataRefrigCase->NumSimulationSecondarySystems > 0) {
5148 1 : LoadSecondaryNum = Util::FindItemInList(Alphas(AlphaListNum), Secondary);
5149 : }
5150 1 : if ((LoadCascadeNum == 0) && (LoadSecondaryNum == 0)) {
5151 0 : ShowSevereError(state,
5152 0 : format("{}{}=\"{}\" : has an invalid value of {}",
5153 : RoutineName,
5154 : CurrentModuleObject,
5155 : cAlphaFieldNames(AlphaListNum),
5156 : Alphas(AlphaListNum)));
5157 0 : ErrorsFound = true;
5158 1 : } else if ((LoadCascadeNum != 0) && (LoadSecondaryNum != 0)) {
5159 0 : ShowSevereError(state,
5160 0 : format("{}{}=\"{}\" : has a non-unique name : {}",
5161 : RoutineName,
5162 : CurrentModuleObject,
5163 : cAlphaFieldNames(AlphaListNum),
5164 : Alphas(AlphaListNum)));
5165 0 : ErrorsFound = true;
5166 1 : } else if (LoadCascadeNum != 0) {
5167 0 : if (Condenser(LoadCascadeNum).CondenserType != DataHeatBalance::RefrigCondenserType::Cascade) {
5168 0 : ShowSevereError(state,
5169 0 : format("{}{}=\"{}\" : has a condenser listed as a transfer load that is not a cascade condenser: {}",
5170 : RoutineName,
5171 : CurrentModuleObject,
5172 0 : System(RefrigSysNum).Name,
5173 : Alphas(AlphaListNum)));
5174 0 : ErrorsFound = true;
5175 : } else {
5176 0 : ++NumCascadeLoadsOnList;
5177 0 : TransferLoadList(ListNum).CascadeLoadItemNum(NumCascadeLoadsOnList) = LoadCascadeNum;
5178 : } // /= condenser cascade type
5179 1 : } else if (LoadSecondaryNum != 0) {
5180 1 : ++NumSecondarysOnList;
5181 1 : TransferLoadList(ListNum).SecondaryItemNum(NumSecondarysOnList) = LoadSecondaryNum;
5182 : }
5183 1 : TransferLoadList(ListNum).NumSecondarys = NumSecondarysOnList;
5184 1 : TransferLoadList(ListNum).NumCascadeLoads = NumCascadeLoadsOnList;
5185 : } // Num Total Loads on List
5186 : } // ListNum=1,NumSimulationTransferLoadLists
5187 : } //(NumSimulationTransferLoadLists > 0)
5188 :
5189 : //**** End read transfer load Lists **********************************************************
5190 :
5191 : //**** Read Compressor Lists **********************************************************
5192 16 : CurrentModuleObject = "Refrigeration:CompressorList";
5193 61 : for (int ListNum = 1; ListNum <= NumCompressorLists; ++ListNum) {
5194 45 : state.dataInputProcessing->inputProcessor->getObjectItem(state,
5195 : CurrentModuleObject,
5196 : ListNum,
5197 : Alphas,
5198 : NumAlphas,
5199 : Numbers,
5200 : NumNumbers,
5201 : IOStatus,
5202 : lNumericBlanks,
5203 : lAlphaBlanks,
5204 : cAlphaFieldNames,
5205 : cNumericFieldNames);
5206 45 : CompressorLists(ListNum).NumCompressors = NumAlphas - 1;
5207 45 : Util::IsNameEmpty(state, Alphas(1), CurrentModuleObject, ErrorsFound);
5208 :
5209 45 : CompressorLists(ListNum).Name = Alphas(1);
5210 45 : if (!allocated(CompressorLists(ListNum).CompItemNum)) {
5211 45 : CompressorLists(ListNum).CompItemNum.allocate(CompressorLists(ListNum).NumCompressors);
5212 : }
5213 :
5214 227 : for (int CompIndex = 1; CompIndex <= CompressorLists(ListNum).NumCompressors; ++CompIndex) {
5215 182 : int AlphaListNum = CompIndex + 1; // same as do loop from 2 to end of list
5216 182 : if (!lAlphaBlanks(AlphaListNum)) {
5217 182 : CompressorLists(ListNum).CompItemNum(CompIndex) = Util::FindItemInList(Alphas(AlphaListNum), Compressor);
5218 182 : if (CompressorLists(ListNum).CompItemNum(CompIndex) == 0) {
5219 0 : ShowSevereError(state,
5220 0 : format("{}{}=\"{}\", has an invalid {} defined as {}",
5221 : RoutineName,
5222 : CurrentModuleObject,
5223 0 : CompressorLists(ListNum).Name,
5224 : cAlphaFieldNames(AlphaListNum),
5225 : Alphas(AlphaListNum)));
5226 0 : ErrorsFound = true;
5227 : }
5228 : }
5229 : } // NumCompressors in CompressorList
5230 :
5231 : } // NumCompressorLists
5232 :
5233 : // ********READ REFRIGERATION SYSTEMS ***********
5234 :
5235 16 : CurrentModuleObject = "Refrigeration:System";
5236 57 : for (RefrigSysNum = 1; RefrigSysNum <= state.dataRefrigCase->NumRefrigSystems; ++RefrigSysNum) {
5237 :
5238 41 : state.dataInputProcessing->inputProcessor->getObjectItem(state,
5239 : CurrentModuleObject,
5240 : RefrigSysNum,
5241 : Alphas,
5242 : NumAlphas,
5243 : Numbers,
5244 : NumNumbers,
5245 : IOStatus,
5246 : lNumericBlanks,
5247 : lAlphaBlanks,
5248 : cAlphaFieldNames,
5249 : cNumericFieldNames);
5250 :
5251 41 : ErrorObjectHeader eoh{routineName, CurrentModuleObject, Alphas(1)};
5252 41 : Util::IsNameEmpty(state, Alphas(1), CurrentModuleObject, ErrorsFound);
5253 :
5254 41 : System(RefrigSysNum).Name = Alphas(1);
5255 :
5256 : // Read all loads on this System: cases, walk-ins, cascade loads, and secondary loops
5257 41 : if (lAlphaBlanks(2) && lAlphaBlanks(3)) {
5258 : // No cases, walkins, cascade loads, or secondary loops specified, ie, System has no load
5259 0 : ShowSevereError(state,
5260 0 : format("{}{}=\"{}\", has no loads, must have at least one of: {} or {} objects attached.",
5261 : RoutineName,
5262 : CurrentModuleObject,
5263 0 : System(RefrigSysNum).Name,
5264 : cAlphaFieldNames(2),
5265 : cAlphaFieldNames(3)));
5266 0 : ErrorsFound = true;
5267 : }
5268 41 : NumCases = 0;
5269 41 : System(RefrigSysNum).NumCases = 0;
5270 41 : int NumCoils = 0;
5271 41 : System(RefrigSysNum).NumCoils = 0;
5272 41 : NumWalkIns = 0;
5273 41 : System(RefrigSysNum).NumWalkIns = 0;
5274 41 : int NumSecondary = 0;
5275 41 : System(RefrigSysNum).NumSecondarys = 0;
5276 41 : System(RefrigSysNum).NumCascadeLoads = 0;
5277 41 : System(RefrigSysNum).NumNonCascadeLoads = 0;
5278 41 : Real64 NominalTotalCaseCap = 0.0;
5279 41 : Real64 NominalTotalCoilCap = 0.0;
5280 41 : Real64 NominalTotalWalkInCap = 0.0;
5281 41 : Real64 NominalTotalSecondaryCap = 0.0;
5282 : Real64 NominalTotalCoolingCap;
5283 41 : Real64 NominalTotalCascadeLoad = 0.0;
5284 41 : System(RefrigSysNum).RefInventory = 0.0;
5285 :
5286 : // Check for case or walkin or CaseAndWalkInList names
5287 41 : AlphaNum = 2;
5288 41 : if (!lAlphaBlanks(AlphaNum)) {
5289 :
5290 : // Entry for Alphas(AlphaNum) can be either a Case, WalkIn or CaseAndWalkInList name
5291 38 : int CaseAndWalkInListNum = 0;
5292 38 : int CaseNum = 0;
5293 38 : int WalkInNum = 0;
5294 38 : int CoilNum = 0;
5295 38 : if (state.dataRefrigCase->NumSimulationCaseAndWalkInLists > 0) {
5296 38 : CaseAndWalkInListNum = Util::FindItemInList(Alphas(AlphaNum), CaseAndWalkInList);
5297 : }
5298 38 : if (state.dataRefrigCase->NumSimulationCases > 0) {
5299 29 : CaseNum = Util::FindItemInList(Alphas(AlphaNum), RefrigCase);
5300 : }
5301 38 : if (state.dataRefrigCase->NumSimulationWalkIns > 0) {
5302 27 : WalkInNum = Util::FindItemInList(Alphas(AlphaNum), WalkIn);
5303 : }
5304 38 : if (state.dataRefrigCase->NumSimulationRefrigAirChillers > 0) {
5305 9 : CoilNum = Util::FindItemInList(Alphas(AlphaNum), WarehouseCoil);
5306 : }
5307 38 : int NumNameMatches = 0;
5308 38 : if (CaseAndWalkInListNum != 0) {
5309 35 : ++NumNameMatches;
5310 : }
5311 38 : if (CaseNum != 0) {
5312 3 : ++NumNameMatches;
5313 : }
5314 38 : if (WalkInNum != 0) {
5315 0 : ++NumNameMatches;
5316 : }
5317 38 : if (CoilNum != 0) {
5318 0 : ++NumNameMatches;
5319 : }
5320 :
5321 38 : if (NumNameMatches != 1) { // name must uniquely point to a list or a single case or walkin or coil
5322 0 : ErrorsFound = true;
5323 0 : if (NumNameMatches == 0) {
5324 0 : ShowSevereError(state,
5325 0 : format("{}{}=\"{}\", has an invalid {}: {}",
5326 : RoutineName,
5327 : CurrentModuleObject,
5328 0 : System(RefrigSysNum).Name,
5329 : cAlphaFieldNames(AlphaNum),
5330 : Alphas(AlphaNum)));
5331 0 : } else if (NumNameMatches > 1) {
5332 0 : ShowSevereError(state,
5333 0 : format("{}{}=\"{}\", has a non-unique name that could be either a {}: {}",
5334 : RoutineName,
5335 : CurrentModuleObject,
5336 0 : System(RefrigSysNum).Name,
5337 : cAlphaFieldNames(AlphaNum),
5338 : Alphas(AlphaNum)));
5339 : } // num matches = 0 or > 1
5340 38 : } else if (CaseAndWalkInListNum != 0) { // Name points to a CaseAndWalkInList
5341 35 : NumCases = CaseAndWalkInList(CaseAndWalkInListNum).NumCases;
5342 35 : NumWalkIns = CaseAndWalkInList(CaseAndWalkInListNum).NumWalkIns;
5343 35 : NumCoils = CaseAndWalkInList(CaseAndWalkInListNum).NumCoils;
5344 35 : System(RefrigSysNum).NumCases = NumCases;
5345 35 : System(RefrigSysNum).NumWalkIns = NumWalkIns;
5346 35 : System(RefrigSysNum).NumCoils = NumCoils;
5347 35 : if (NumCases > 0) {
5348 23 : if (!allocated(System(RefrigSysNum).CaseNum)) {
5349 23 : System(RefrigSysNum).CaseNum.allocate(NumCases);
5350 : }
5351 23 : System(RefrigSysNum).CaseNum({1, NumCases}) = CaseAndWalkInList(CaseAndWalkInListNum).CaseItemNum({1, NumCases});
5352 : }
5353 35 : if (NumCoils > 0) {
5354 9 : if (!allocated(System(RefrigSysNum).CoilNum)) {
5355 9 : System(RefrigSysNum).CoilNum.allocate(NumCoils);
5356 : }
5357 9 : System(RefrigSysNum).CoilNum({1, NumCoils}) = CaseAndWalkInList(CaseAndWalkInListNum).CoilItemNum({1, NumCoils});
5358 : }
5359 35 : if (NumWalkIns > 0) {
5360 15 : if (!allocated(System(RefrigSysNum).WalkInNum)) {
5361 15 : System(RefrigSysNum).WalkInNum.allocate(NumWalkIns);
5362 : }
5363 15 : System(RefrigSysNum).WalkInNum({1, NumWalkIns}) = CaseAndWalkInList(CaseAndWalkInListNum).WalkInItemNum({1, NumWalkIns});
5364 : }
5365 3 : } else if (CaseNum != 0) { // Name points to a case
5366 3 : NumCases = 1;
5367 3 : System(RefrigSysNum).NumCases = 1;
5368 3 : if (!allocated(System(RefrigSysNum).CaseNum)) {
5369 3 : System(RefrigSysNum).CaseNum.allocate(NumCases);
5370 : }
5371 3 : System(RefrigSysNum).CaseNum(NumCases) = CaseNum;
5372 0 : } else if (CoilNum != 0) { // Name points to a coil
5373 0 : NumCoils = 1;
5374 0 : System(RefrigSysNum).NumCoils = 1;
5375 0 : if (!allocated(System(RefrigSysNum).CoilNum)) {
5376 0 : System(RefrigSysNum).CoilNum.allocate(NumCoils);
5377 : }
5378 0 : System(RefrigSysNum).CoilNum(NumCoils) = CoilNum;
5379 0 : } else if (WalkInNum != 0) { // Name points to a walkin
5380 0 : NumWalkIns = 1;
5381 0 : System(RefrigSysNum).NumWalkIns = 1;
5382 0 : if (!allocated(System(RefrigSysNum).WalkInNum)) {
5383 0 : System(RefrigSysNum).WalkInNum.allocate(NumWalkIns);
5384 : }
5385 0 : System(RefrigSysNum).WalkInNum(NumWalkIns) = WalkInNum;
5386 : } // NumNameMatches /= 1
5387 : } // blank input for cases, walkins, or caseandwalkinlist
5388 :
5389 41 : if (NumCases > 0) {
5390 : // Find lowest design evap T
5391 : // Sum rated capacity of all cases on system
5392 110 : for (int caseIndex = 1; caseIndex <= NumCases; ++caseIndex) {
5393 : // mark all cases on system as used by this system - checking for unused or non-unique cases
5394 84 : int CaseNum = System(RefrigSysNum).CaseNum(caseIndex);
5395 84 : ++RefrigCase(CaseNum).NumSysAttach;
5396 84 : NominalTotalCaseCap += RefrigCase(CaseNum).DesignRatedCap;
5397 84 : System(RefrigSysNum).RefInventory += RefrigCase(CaseNum).DesignRefrigInventory;
5398 84 : if (caseIndex == 1) { // look for lowest case design evap T for system
5399 26 : System(RefrigSysNum).TEvapDesign = RefrigCase(CaseNum).EvapTempDesign;
5400 : } else {
5401 58 : System(RefrigSysNum).TEvapDesign = min(RefrigCase(CaseNum).EvapTempDesign, System(RefrigSysNum).TEvapDesign);
5402 : }
5403 : } // CaseIndex=1,NumCases
5404 26 : System(RefrigSysNum).NumNonCascadeLoads += System(RefrigSysNum).NumCases;
5405 : } // Numcases > 0
5406 :
5407 41 : if (NumCoils > 0) {
5408 : // Find lowest design evap T
5409 : // Sum rated capacity of all Coils on system
5410 92 : for (int CoilIndex = 1; CoilIndex <= NumCoils; ++CoilIndex) {
5411 : // mark all Coils on system as used by this system - checking for unused or non-unique Coils
5412 83 : int CoilNum = System(RefrigSysNum).CoilNum(CoilIndex);
5413 83 : ++WarehouseCoil(CoilNum).NumSysAttach;
5414 83 : NominalTotalCoilCap += WarehouseCoil(CoilNum).RatedSensibleCap;
5415 83 : System(RefrigSysNum).RefInventory += WarehouseCoil(CoilNum).DesignRefrigInventory;
5416 83 : if ((CoilIndex == 1) && (System(RefrigSysNum).NumCases == 0)) { // look for lowest Coil design evap T for system
5417 9 : System(RefrigSysNum).TEvapDesign = WarehouseCoil(CoilNum).TEvapDesign;
5418 : } else {
5419 74 : System(RefrigSysNum).TEvapDesign = min(WarehouseCoil(CoilNum).TEvapDesign, System(RefrigSysNum).TEvapDesign);
5420 : }
5421 : } // CoilIndex=1,NumCoils
5422 9 : System(RefrigSysNum).NumNonCascadeLoads += System(RefrigSysNum).NumCoils;
5423 : } // NumCoils > 0
5424 :
5425 41 : if (NumWalkIns > 0) {
5426 30 : for (int WalkInIndex = 1; WalkInIndex <= NumWalkIns; ++WalkInIndex) {
5427 15 : int WalkInID = System(RefrigSysNum).WalkInNum(WalkInIndex);
5428 : // mark all WalkIns on rack as used by this system (checking for unused or non-unique WalkIns)
5429 15 : ++WalkIn(WalkInID).NumSysAttach;
5430 15 : NominalTotalWalkInCap += WalkIn(WalkInID).DesignRatedCap;
5431 15 : System(RefrigSysNum).RefInventory += WalkIn(WalkInID).DesignRefrigInventory;
5432 : // Defrost capacity is treated differently by compressor racks and detailed systems,
5433 : // so this value may be adjusted (or warnings issued) after the walkin is assigned
5434 : // to either the rack or system.
5435 : // for walkins served by detailed system, need capacity for both fluid and electric types.
5436 15 : if (WalkIn(WalkInID).DefrostCapacity <= -98.0) {
5437 : // - 99 used as a flag for blank input error message for detailed systems
5438 0 : ShowSevereError(state,
5439 0 : format("{}Refrigeration:WalkIn=\"{}\", Defrost capacity must be greater than or equal to 0 W for "
5440 : "electric and hotfluid defrost types",
5441 : RoutineName,
5442 0 : WalkIn(WalkInID).Name));
5443 0 : ErrorsFound = true;
5444 : }
5445 : // Find design evaporating temperature for system by getting min design evap for ALL loads
5446 15 : if ((WalkInIndex == 1) && (System(RefrigSysNum).NumCases == 0) && (System(RefrigSysNum).NumCoils == 0)) {
5447 : // note use walk in index, not walkinid here to get
5448 : // first walkin on this suction group/system
5449 3 : System(RefrigSysNum).TEvapDesign = WalkIn(WalkInID).TEvapDesign;
5450 : } else {
5451 12 : System(RefrigSysNum).TEvapDesign = min(WalkIn(WalkInID).TEvapDesign, System(RefrigSysNum).TEvapDesign);
5452 : }
5453 : } // WalkInIndex=1,NumWalkIns
5454 15 : System(RefrigSysNum).NumNonCascadeLoads += System(RefrigSysNum).NumWalkIns;
5455 : } // numwalkins > 0
5456 :
5457 41 : AlphaNum = 3;
5458 : // Read Transfer Loads (Secondary and Cascade) assignments for this System ,
5459 : // already allow more than one mech subcooler to load onto a system so they don't need to go in list
5460 41 : if (!lAlphaBlanks(AlphaNum)) {
5461 :
5462 : // Entry for Alphas(AlphaNum) can be either a Secondary, CascadeLoad name or a TransferLoadList name
5463 3 : int TransferLoadListNum = 0;
5464 3 : int SecondaryNum = 0;
5465 3 : int CascadeLoadNum = 0;
5466 3 : if (state.dataRefrigCase->NumSimulationTransferLoadLists > 0) {
5467 2 : TransferLoadListNum = Util::FindItemInList(Alphas(AlphaNum), TransferLoadList);
5468 : }
5469 3 : if (state.dataRefrigCase->NumSimulationSecondarySystems > 0) {
5470 2 : SecondaryNum = Util::FindItemInList(Alphas(AlphaNum), Secondary);
5471 : }
5472 3 : if (state.dataRefrigCase->NumRefrigCondensers > 0) {
5473 3 : CascadeLoadNum = Util::FindItemInList(Alphas(AlphaNum), Condenser);
5474 : }
5475 3 : int NumNameMatches = 0;
5476 3 : if (TransferLoadListNum != 0) {
5477 1 : ++NumNameMatches;
5478 : }
5479 3 : if (SecondaryNum != 0) {
5480 1 : ++NumNameMatches;
5481 : }
5482 3 : if (CascadeLoadNum != 0) {
5483 1 : ++NumNameMatches;
5484 : }
5485 3 : int NumCascadeLoad = 0;
5486 :
5487 3 : if (NumNameMatches != 1) { // name must uniquely point to a list or a single transfer load
5488 0 : ErrorsFound = true;
5489 0 : if (NumNameMatches == 0) {
5490 0 : ShowSevereError(state,
5491 0 : format("{}{}=\"{}\", has an invalid {}: {}",
5492 : RoutineName,
5493 : CurrentModuleObject,
5494 0 : System(RefrigSysNum).Name,
5495 : cAlphaFieldNames(AlphaNum),
5496 : Alphas(AlphaNum)));
5497 0 : } else if (NumNameMatches > 1) {
5498 0 : ShowSevereError(state,
5499 0 : format("{}{}=\"{}\", has a non-unique name that could be either a {}: {}",
5500 : RoutineName,
5501 : CurrentModuleObject,
5502 0 : System(RefrigSysNum).Name,
5503 : cAlphaFieldNames(AlphaNum),
5504 : Alphas(AlphaNum)));
5505 : } // num matches = 0 or > 1
5506 3 : } else if (TransferLoadListNum != 0) { // Name points to a transferLoad list
5507 1 : NumSecondary = TransferLoadList(TransferLoadListNum).NumSecondarys;
5508 1 : NumCascadeLoad = TransferLoadList(TransferLoadListNum).NumCascadeLoads;
5509 1 : System(RefrigSysNum).NumSecondarys = NumSecondary;
5510 1 : System(RefrigSysNum).NumCascadeLoads = NumCascadeLoad;
5511 1 : if (!allocated(System(RefrigSysNum).SecondaryNum)) {
5512 1 : System(RefrigSysNum).SecondaryNum.allocate(NumSecondary);
5513 : }
5514 1 : System(RefrigSysNum).SecondaryNum({1, NumSecondary}) = TransferLoadList(TransferLoadListNum).SecondaryItemNum({1, NumSecondary});
5515 1 : if (!allocated(System(RefrigSysNum).CascadeLoadNum)) {
5516 1 : System(RefrigSysNum).CascadeLoadNum.allocate(NumCascadeLoad);
5517 : }
5518 2 : System(RefrigSysNum).CascadeLoadNum({1, NumCascadeLoad}) =
5519 3 : TransferLoadList(TransferLoadListNum).CascadeLoadItemNum({1, NumCascadeLoad});
5520 2 : } else if (SecondaryNum != 0) { // Name points to a secondary loop load
5521 1 : NumSecondary = 1;
5522 1 : System(RefrigSysNum).NumSecondarys = 1;
5523 1 : if (!allocated(System(RefrigSysNum).SecondaryNum)) {
5524 1 : System(RefrigSysNum).SecondaryNum.allocate(NumSecondary);
5525 : }
5526 1 : System(RefrigSysNum).SecondaryNum(NumSecondary) = SecondaryNum;
5527 1 : } else if (CascadeLoadNum != 0) { // Name points to a cascade condenser load
5528 1 : NumCascadeLoad = 1;
5529 1 : System(RefrigSysNum).NumCascadeLoads = 1;
5530 1 : if (!allocated(System(RefrigSysNum).CascadeLoadNum)) {
5531 1 : System(RefrigSysNum).CascadeLoadNum.allocate(NumCascadeLoad);
5532 : }
5533 1 : System(RefrigSysNum).CascadeLoadNum(NumCascadeLoad) = CascadeLoadNum;
5534 : } // NumNameMatches /= 1
5535 :
5536 3 : System(RefrigSysNum).CoilFlag = false;
5537 : // Now need to loop through all transfer loads to see if they change the minimum required system evaporating temperature
5538 3 : if (NumSecondary > 0) {
5539 4 : for (int SecondaryIndex = 1; SecondaryIndex <= NumSecondary; ++SecondaryIndex) {
5540 2 : int SecondaryID = System(RefrigSysNum).SecondaryNum(SecondaryIndex);
5541 2 : if (SecondaryIndex == 1) { // check for consistency of loads (coils calc on sys time step, all others on zone time step)
5542 2 : if (Secondary(SecondaryID).CoilFlag) {
5543 0 : System(RefrigSysNum).CoilFlag = true;
5544 : }
5545 0 : } else if (Secondary(SecondaryID).CoilFlag != System(RefrigSysNum).CoilFlag) {
5546 0 : ShowSevereError(
5547 : state,
5548 0 : format("{}{}=\"{}\", Serves an inconsistent mixture of loads. Coil-type loads are served on a different time "
5549 : "step than case or walkin loads. Compare loads on system served by secondary loop \"{}",
5550 : RoutineName,
5551 : CurrentModuleObject,
5552 0 : System(RefrigSysNum).Name,
5553 0 : Secondary(SecondaryID).Name));
5554 0 : ErrorsFound = true;
5555 : } // check for consistency of loads (coils calc on sys time step, all others on zone time step)
5556 : // mark all Secondarys on system as used by this system (checking for unused or non-unique Secondarys)
5557 2 : ++Secondary(SecondaryID).NumSysAttach;
5558 2 : NominalTotalSecondaryCap += Secondary(SecondaryID).CoolingLoadRated;
5559 2 : System(RefrigSysNum).RefInventory += Secondary(SecondaryID).ChillerRefInventory;
5560 : // Find design evaporating temperature for system by getting min design evap for ALL loads
5561 4 : if ((SecondaryIndex == 1) && (System(RefrigSysNum).NumCases == 0) && (System(RefrigSysNum).NumCoils == 0) &&
5562 2 : (System(RefrigSysNum).NumWalkIns == 0)) {
5563 : // note use secondary index above, not secondaryid here to get
5564 : // first secondary on this suction group/system
5565 : // note - TMinNeeded on secondary defined by cases and walkins served by secondary, not by
5566 : // the secondary's rated evaporating temperature (which is used to calc secondary heat
5567 : // exchanger effectiveness with other rated values)
5568 2 : System(RefrigSysNum).TEvapDesign = Secondary(SecondaryID).TMinNeeded;
5569 : } else {
5570 0 : System(RefrigSysNum).TEvapDesign = min(Secondary(SecondaryID).TMinNeeded, System(RefrigSysNum).TEvapDesign);
5571 : }
5572 : } // SecondaryIndex=1,NumSecondary
5573 2 : System(RefrigSysNum).NumNonCascadeLoads += System(RefrigSysNum).NumSecondarys;
5574 : } // numsecondary > 0
5575 :
5576 3 : if (NumCascadeLoad > 0) {
5577 2 : for (int cascadeLoadIndex = 1; cascadeLoadIndex <= NumCascadeLoad; ++cascadeLoadIndex) {
5578 1 : int CondID = System(RefrigSysNum).CascadeLoadNum(cascadeLoadIndex);
5579 1 : if (Condenser(CondID).CondenserType != DataHeatBalance::RefrigCondenserType::Cascade) {
5580 0 : ShowSevereError(state,
5581 0 : format("{}{}=\"{}\", has a {}: {} cascade load that is not a cascade condenser.",
5582 : RoutineName,
5583 : CurrentModuleObject,
5584 0 : System(RefrigSysNum).Name,
5585 : cAlphaFieldNames(AlphaNum),
5586 : Alphas(AlphaNum)));
5587 0 : ErrorsFound = true;
5588 : }
5589 : // For a cascade condenser, need to identify the system absorbing the heat
5590 1 : Condenser(CondID).CascadeSinkSystemID = RefrigSysNum;
5591 1 : NominalTotalCascadeLoad += Condenser(CondID).RatedCapacity;
5592 : // Find design evaporating temperature for system by getting min design evap for ALL loads
5593 1 : if (System(RefrigSysNum).NumNonCascadeLoads == 0) {
5594 1 : if (cascadeLoadIndex == 1) {
5595 : // note use cascadeload index above, not condid here to get
5596 : // first cascade condenser served by this suction group/system
5597 1 : System(RefrigSysNum).TEvapDesign = Condenser(CondID).CascadeRatedEvapTemp;
5598 : } else {
5599 0 : System(RefrigSysNum).TEvapDesign = min(Condenser(CondID).CascadeRatedEvapTemp, System(RefrigSysNum).TEvapDesign);
5600 : } // CascadeLoadIndex == 1
5601 : } else { // (NumNonCascadeLoads > 0 so initial TEvapDesign set above with those other loads)
5602 0 : if (Condenser(CondID).CascadeTempControl == CascadeCndsrTempCtrlType::TempSet) {
5603 0 : System(RefrigSysNum).TEvapDesign = min(Condenser(CondID).CascadeRatedEvapTemp,
5604 0 : System(RefrigSysNum).TEvapDesign); // other wise TEvapDesign set by other loads
5605 : }
5606 : }
5607 : } // CascadeLoadIndex=1,NumCascadeLoad
5608 : } // CascadeLoadNum > 0
5609 : } // yes/no blank input for transfer loads
5610 :
5611 : // check for consistency of loads (coils calc on sys time step, all others on zone time step, so can't mix on one system)
5612 41 : if (System(RefrigSysNum).CoilFlag) { // could already be true if serving secondary that serves coils
5613 0 : if ((System(RefrigSysNum).NumCases > 0) || (System(RefrigSysNum).NumWalkIns > 0)) {
5614 0 : ShowSevereError(state,
5615 0 : format("{}{}=\"{}\", Serves an inconsistent mixture of loads. Coil-type loads are served on a different time "
5616 : "step than case or walkin loads.",
5617 : RoutineName,
5618 : CurrentModuleObject,
5619 0 : System(RefrigSysNum).Name));
5620 0 : ErrorsFound = true;
5621 : }
5622 : } else { // no coils on secondary or no secondary
5623 41 : if (System(RefrigSysNum).NumCoils > 0) { //(note, coilflag set to .FALSE. for all systems as default above
5624 9 : System(RefrigSysNum).CoilFlag = true;
5625 9 : if ((System(RefrigSysNum).NumCases > 0) || (System(RefrigSysNum).NumWalkIns > 0)) {
5626 0 : ShowSevereError(state,
5627 0 : format("{}{}=\"{}\", Serves an inconsistent mixture of loads. Coil-type loads are served on a different "
5628 : "time step than case or walkin loads.",
5629 : RoutineName,
5630 : CurrentModuleObject,
5631 0 : System(RefrigSysNum).Name));
5632 0 : ErrorsFound = true;
5633 : }
5634 : } // NumCoils > 0
5635 : } // Coil flag already true due to secondary coil loads
5636 :
5637 41 : NominalTotalCoolingCap = NominalTotalCaseCap + NominalTotalWalkInCap + NominalTotalSecondaryCap + NominalTotalCascadeLoad;
5638 :
5639 : // read condenser
5640 : // currently assumes one condenser per refrigeration system and but multiple systems allowed per condenser
5641 41 : AlphaNum = 4;
5642 41 : int NumCondensers = 1;
5643 41 : if (!allocated(System(RefrigSysNum).CondenserNum)) {
5644 41 : System(RefrigSysNum).CondenserNum.allocate(NumCondensers);
5645 : }
5646 41 : System(RefrigSysNum).NumCondensers = 1;
5647 : // Find condenser number, note condensers were read in one of four objects, but all read into same list
5648 41 : int CondNum = Util::FindItemInList(Alphas(AlphaNum), Condenser);
5649 41 : if (CondNum == 0) {
5650 0 : ShowSevereError(state,
5651 0 : format("{}{}=\"{}\", has an invalid {} defined as {}",
5652 : RoutineName,
5653 : CurrentModuleObject,
5654 0 : System(RefrigSysNum).Name,
5655 : cAlphaFieldNames(AlphaNum),
5656 : Alphas(AlphaNum)));
5657 0 : ErrorsFound = true;
5658 : } else {
5659 41 : System(RefrigSysNum).CondenserNum(NumCondensers) = CondNum;
5660 : // Now take care of case where multiple systems share a condenser
5661 41 : ++Condenser(CondNum).NumSysAttach;
5662 41 : Condenser(CondNum).SysNum(Condenser(CondNum).NumSysAttach) = RefrigSysNum;
5663 : }
5664 :
5665 82 : System(RefrigSysNum).RefInventory +=
5666 41 : Condenser(CondNum).RefReceiverInventory + Condenser(CondNum).RefPipingInventory + Condenser(CondNum).RefOpCharge;
5667 41 : if (Condenser(CondNum).CondenserType == DataHeatBalance::RefrigCondenserType::Cascade) {
5668 1 : Condenser(CondNum).CascadeSysID = RefrigSysNum;
5669 : }
5670 41 : if ((Condenser(CondNum).CondenserType == DataHeatBalance::RefrigCondenserType::Air) && (Condenser(CondNum).CondenserRejectHeatToZone)) {
5671 3 : System(RefrigSysNum).SystemRejectHeatToZone = true;
5672 : }
5673 :
5674 : // Now do evaporative condenser auto-sizing because it is a function of the system's cooling load
5675 41 : if (Condenser(CondNum).CondenserType == DataHeatBalance::RefrigCondenserType::Evap) {
5676 4 : if (Condenser(CondNum).RatedAirFlowRate == Constant::AutoCalculate) {
5677 0 : Condenser(CondNum).RatedAirFlowRate = AirVolRateEvapCond * Condenser(CondNum).RatedCapacity;
5678 : }
5679 4 : if (Condenser(CondNum).RatedAirFlowRate <= 0.0) {
5680 0 : ShowSevereError(state,
5681 0 : format("{}{}=\"{}\", Evaporative Condenser Air Volume Flow Rate cannot be less than or equal to zero.",
5682 : RoutineName,
5683 : CurrentModuleObject,
5684 0 : Condenser(CondNum).Name));
5685 0 : ErrorsFound = true;
5686 : }
5687 4 : if (Condenser(CondNum).EvapPumpPower == Constant::AutoCalculate) {
5688 0 : Condenser(CondNum).EvapPumpPower = CondPumpRatePower * Condenser(CondNum).RatedCapacity;
5689 : }
5690 4 : if (Condenser(CondNum).EvapPumpPower < 0.0) {
5691 0 : ShowSevereError(state,
5692 0 : format("{}{}=\"{}\", Design Evaporative Condenser Water Pump Power cannot be less than zero.",
5693 : RoutineName,
5694 : CurrentModuleObject,
5695 0 : Condenser(CondNum).Name));
5696 0 : ErrorsFound = true;
5697 : }
5698 : }
5699 :
5700 : // Read the compressor data.
5701 : // If the system consists of two stages of compression, these compressors will be the low-stage compressors.
5702 41 : AlphaNum = 5;
5703 41 : int NumCompressorsSys = 0;
5704 41 : if (lAlphaBlanks(AlphaNum)) {
5705 : // blank input where must have compressor or compressor list input.
5706 0 : ShowSevereError(state, format("{}{} {}\" : must be input.", RoutineName, CurrentModuleObject, cAlphaFieldNames(AlphaNum)));
5707 0 : ErrorsFound = true;
5708 : } else { // Entry for Alphas(AlphaNum) can be either a compressor name or a compressorlist name
5709 : int ListNum;
5710 41 : if (NumCompressorLists > 0) {
5711 41 : ListNum = Util::FindItemInList(Alphas(AlphaNum), CompressorLists);
5712 : } else {
5713 0 : ListNum = 0;
5714 : }
5715 : int CompNum;
5716 41 : if (state.dataRefrigCase->NumSimulationCompressors > 0) {
5717 41 : CompNum = Util::FindItemInList(Alphas(AlphaNum), Compressor);
5718 : } else {
5719 0 : CompNum = 0;
5720 : }
5721 41 : if ((ListNum == 0) && (CompNum == 0)) { // name doesn't match either a compressor or a compressor list
5722 0 : ShowSevereError(state,
5723 0 : format("{}{} {}, has an invalid or undefined value=\"{}\".",
5724 : RoutineName,
5725 : CurrentModuleObject,
5726 : cAlphaFieldNames(AlphaNum),
5727 : Alphas(AlphaNum)));
5728 0 : ErrorsFound = true;
5729 41 : } else if ((ListNum != 0) && (CompNum != 0)) { // have compressor list and compressor with same name
5730 0 : ShowSevereError(state,
5731 0 : format("{}{} {}, has a non-unique name used for both Compressor and CompressorList name: \"{}\".",
5732 : RoutineName,
5733 : CurrentModuleObject,
5734 : cAlphaFieldNames(AlphaNum),
5735 : Alphas(AlphaNum)));
5736 0 : ErrorsFound = true;
5737 41 : } else if (ListNum != 0) {
5738 41 : NumCompressorsSys = CompressorLists(ListNum).NumCompressors;
5739 41 : System(RefrigSysNum).NumCompressors = NumCompressorsSys;
5740 41 : if (!allocated(System(RefrigSysNum).CompressorNum)) {
5741 41 : System(RefrigSysNum).CompressorNum.allocate(NumCompressorsSys);
5742 : }
5743 41 : System(RefrigSysNum).CompressorNum({1, NumCompressorsSys}) = CompressorLists(ListNum).CompItemNum({1, NumCompressorsSys});
5744 0 : } else if (CompNum != 0) {
5745 0 : NumCompressorsSys = 1;
5746 0 : System(RefrigSysNum).NumCompressors = 1;
5747 0 : if (!allocated(System(RefrigSysNum).CompressorNum)) {
5748 0 : System(RefrigSysNum).CompressorNum.allocate(NumCompressorsSys);
5749 : }
5750 0 : System(RefrigSysNum).CompressorNum(NumCompressorsSys) = CompNum;
5751 : }
5752 : }
5753 :
5754 41 : if (!lNumericBlanks(1)) {
5755 41 : System(RefrigSysNum).TCondenseMin = Numbers(1);
5756 41 : System(RefrigSysNum).TCondenseMinInput = System(RefrigSysNum).TCondenseMin;
5757 41 : if (state.dataGlobal->AnyEnergyManagementSystemInModel) {
5758 8 : SetupEMSActuator(state,
5759 : "Refrigeration:System",
5760 4 : System(RefrigSysNum).Name,
5761 : "Minimum Condensing Temperature",
5762 : "[C]",
5763 4 : System(RefrigSysNum).EMSOverrideOnTCondenseMin,
5764 4 : System(RefrigSysNum).EMSOverrideValueTCondenseMin);
5765 : }
5766 : } else {
5767 0 : ShowSevereError(
5768 : state,
5769 0 : format("{}{}=\"{}\", {} must be defined.", RoutineName, CurrentModuleObject, System(RefrigSysNum).Name, cNumericFieldNames(1)));
5770 0 : ErrorsFound = true;
5771 : }
5772 42 : if ((Condenser(CondNum).CondenserType == DataHeatBalance::RefrigCondenserType::Cascade) &&
5773 1 : (System(RefrigSysNum).TCondenseMin > Condenser(CondNum).RatedTCondense)) {
5774 0 : ShowWarningError(state,
5775 0 : format("{}=\"{}\", The system specified minimum condensing temperature is greater than the rated condensing "
5776 : "temperature for the cascade condenser. ",
5777 : CurrentModuleObject,
5778 0 : System(RefrigSysNum).Name));
5779 : }
5780 :
5781 41 : AlphaNum = 6;
5782 41 : System(RefrigSysNum).RefrigerantName = Alphas(AlphaNum);
5783 41 : if (System(RefrigSysNum).RefrigerantName.empty()) {
5784 0 : ShowSevereEmptyField(state, eoh, Alphas(AlphaNum));
5785 0 : ErrorsFound = true;
5786 41 : } else if ((System(RefrigSysNum).refrig = Fluid::GetRefrig(state, System(RefrigSysNum).RefrigerantName)) == nullptr) {
5787 0 : ShowSevereItemNotFound(state, eoh, cAlphaFieldNames(AlphaNum), Alphas(AlphaNum));
5788 0 : ErrorsFound = true;
5789 : }
5790 : // error messages for refrigerants already found in fluidproperties
5791 :
5792 41 : AlphaNum = 7;
5793 41 : if (lAlphaBlanks(AlphaNum)) {
5794 0 : System(RefrigSysNum).CompSuctControl = CompressorSuctionPressureCtrl::ConstantSuctionTemperature; // Default for blank
5795 82 : } else if ((System(RefrigSysNum).CompSuctControl = static_cast<CompressorSuctionPressureCtrl>(
5796 41 : getEnumValue(compressorSuctionPressureCtrlNamesUC, Alphas(AlphaNum)))) == CompressorSuctionPressureCtrl::Invalid) {
5797 0 : ShowSevereInvalidKey(state, eoh, cAlphaFieldNames(AlphaNum), Alphas(AlphaNum));
5798 0 : ErrorsFound = true;
5799 43 : } else if (System(RefrigSysNum).CompSuctControl == CompressorSuctionPressureCtrl::FloatSuctionTemperature &&
5800 2 : System(RefrigSysNum).CoilFlag) {
5801 0 : ShowWarningError(state,
5802 0 : format("{}=\"{}\", The system specified a FloatSuctionTemperature, but that is not available with air "
5803 : "chiller loads so ConstantSuctionTemperature will be used. ",
5804 : CurrentModuleObject,
5805 0 : System(RefrigSysNum).Name));
5806 : }
5807 :
5808 : // Count subcoolers on system and allocate
5809 41 : AlphaNum = 8;
5810 41 : System(RefrigSysNum).NumSubcoolers = 0;
5811 41 : if (!lAlphaBlanks(AlphaNum)) {
5812 1 : ++System(RefrigSysNum).NumSubcoolers;
5813 : }
5814 41 : if (!lAlphaBlanks(AlphaNum + 1)) {
5815 1 : ++System(RefrigSysNum).NumSubcoolers;
5816 : }
5817 :
5818 41 : if (System(RefrigSysNum).NumSubcoolers > 0) {
5819 1 : if (!allocated(System(RefrigSysNum).SubcoolerNum)) {
5820 1 : System(RefrigSysNum).SubcoolerNum.allocate(System(RefrigSysNum).NumSubcoolers);
5821 : }
5822 1 : int NumSubcooler = 1;
5823 1 : if (!lAlphaBlanks(AlphaNum)) {
5824 1 : System(RefrigSysNum).SubcoolerNum(NumSubcooler) =
5825 1 : state.dataInputProcessing->inputProcessor->getObjectItemNum(state, "Refrigeration:Subcooler", Alphas(AlphaNum));
5826 1 : if (System(RefrigSysNum).SubcoolerNum(NumSubcooler) <= 0) {
5827 0 : ShowSevereError(state,
5828 0 : format(R"({}{}="{}", has an invalid {} defined as "{}".)",
5829 : RoutineName,
5830 : CurrentModuleObject,
5831 0 : System(RefrigSysNum).Name,
5832 : cAlphaFieldNames(AlphaNum),
5833 : Alphas(AlphaNum)));
5834 0 : ErrorsFound = true;
5835 : } else {
5836 1 : Subcooler(System(RefrigSysNum).SubcoolerNum(NumSubcooler)).CoilFlag = System(RefrigSysNum).CoilFlag;
5837 : }
5838 1 : ++NumSubcooler;
5839 : }
5840 1 : if (!lAlphaBlanks(AlphaNum + 1)) {
5841 1 : System(RefrigSysNum).SubcoolerNum(NumSubcooler) =
5842 1 : state.dataInputProcessing->inputProcessor->getObjectItemNum(state, "Refrigeration:Subcooler", Alphas(AlphaNum + 1));
5843 1 : if (System(RefrigSysNum).SubcoolerNum(NumSubcooler) <= 0) {
5844 0 : ShowSevereError(state,
5845 0 : format(R"({}{}="{}", has an invalid {} defined as "{}".)",
5846 : RoutineName,
5847 : CurrentModuleObject,
5848 0 : System(RefrigSysNum).Name,
5849 : cAlphaFieldNames(AlphaNum + 1),
5850 : Alphas(AlphaNum + 1)));
5851 0 : ErrorsFound = true;
5852 : } else {
5853 1 : Subcooler(System(RefrigSysNum).SubcoolerNum(NumSubcooler)).CoilFlag = System(RefrigSysNum).CoilFlag;
5854 : }
5855 : }
5856 : }
5857 :
5858 : // Suction piping heat gain - optional
5859 : // Input UA and identify the Zone containing the bulk of the suction piping
5860 : // This Zone ID will be used to determine the temperature used for suction piping heat gain.
5861 : // The pipe heat gains are also counted as cooling credit for the zone.
5862 : // Zone Id is only required if Sum UA Suction Piping >0.0
5863 : // Get the Zone and zone node numbers from the zone name entered by the user
5864 41 : AlphaNum = 10;
5865 41 : System(RefrigSysNum).SumUASuctionPiping = 0.0;
5866 41 : if (!lNumericBlanks(2) && !lAlphaBlanks(AlphaNum)) {
5867 2 : System(RefrigSysNum).SumUASuctionPiping = Numbers(2);
5868 2 : System(RefrigSysNum).SuctionPipeActualZoneNum = Util::FindItemInList(Alphas(AlphaNum), state.dataHeatBal->Zone);
5869 4 : System(RefrigSysNum).SuctionPipeZoneNodeNum =
5870 2 : DataZoneEquipment::GetSystemNodeNumberForZone(state, System(RefrigSysNum).SuctionPipeActualZoneNum);
5871 2 : if (System(RefrigSysNum).SuctionPipeZoneNodeNum == 0) {
5872 0 : ShowSevereError(
5873 : state,
5874 0 : format("{}{}=\"{}\", System Node Number not found for {} = {} even though {} is greater than zero. Suction piping heat gain "
5875 : "cannot be calculated unless a Zone is defined to determine the environmental temperature surrounding the piping.",
5876 : RoutineName,
5877 : CurrentModuleObject,
5878 0 : System(RefrigSysNum).Name,
5879 : cAlphaFieldNames(AlphaNum),
5880 : Alphas(AlphaNum),
5881 : cNumericFieldNames(2)));
5882 0 : ErrorsFound = true;
5883 : } else {
5884 2 : state.dataRefrigCase->RefrigPresentInZone(System(RefrigSysNum).SuctionPipeActualZoneNum) = true;
5885 : }
5886 39 : } else if (!lNumericBlanks(2) && lAlphaBlanks(AlphaNum)) {
5887 0 : ShowWarningError(state,
5888 0 : format("{}{}=\"{}\" {} not found even though {} is greater than zero. Suction piping heat gain will not be "
5889 : "calculated unless a Zone is defined to determine the environmental temperature surrounding the piping.",
5890 : RoutineName,
5891 : CurrentModuleObject,
5892 0 : System(RefrigSysNum).Name,
5893 : cAlphaFieldNames(AlphaNum),
5894 : cNumericFieldNames(2)));
5895 39 : } else if (lNumericBlanks(2) && !lAlphaBlanks(AlphaNum)) {
5896 0 : ShowWarningError(state,
5897 0 : format("{}{}=\"{}\" {} will not be used and suction piping heat gain will not be calculated because {} was blank.",
5898 : RoutineName,
5899 : CurrentModuleObject,
5900 0 : System(RefrigSysNum).Name,
5901 : cAlphaFieldNames(AlphaNum),
5902 : cNumericFieldNames(2)));
5903 : } // suction piping heat gains
5904 :
5905 41 : AlphaNum = 11;
5906 41 : if (!lAlphaBlanks(AlphaNum)) {
5907 41 : System(RefrigSysNum).EndUseSubcategory = Alphas(AlphaNum);
5908 : }
5909 :
5910 : // Single-stage or two-stage compression system
5911 41 : if (!lNumericBlanks(3)) {
5912 2 : System(RefrigSysNum).NumStages = Numbers(3);
5913 2 : if (System(RefrigSysNum).NumStages < 1 || System(RefrigSysNum).NumStages > 2) {
5914 0 : ShowSevereError(state,
5915 0 : format("{}{}=\"{}\", {}{}",
5916 : RoutineName,
5917 : CurrentModuleObject,
5918 0 : System(RefrigSysNum).Name,
5919 : cNumericFieldNames(3),
5920 : R"( has an invalid value. Only \"1\" or \"2\" compressor stages are allowed.)"));
5921 0 : ErrorsFound = true;
5922 : }
5923 : } else {
5924 39 : System(RefrigSysNum).NumStages = 1; // Default for blank
5925 : }
5926 :
5927 : // Intercooler type
5928 : // None (0) for single-stage compression systems
5929 : // Flash intercooler (1) or coil-and-shell intercooler (2) for two-stage compression systems
5930 41 : AlphaNum = 12;
5931 41 : if (lAlphaBlanks(AlphaNum)) {
5932 39 : System(RefrigSysNum).intercoolerType = IntercoolerType::None; // Default for blank
5933 4 : } else if ((System(RefrigSysNum).intercoolerType =
5934 2 : static_cast<IntercoolerType>(getEnumValue(intercoolerTypeNamesUC, Alphas(AlphaNum)))) == IntercoolerType::Invalid) {
5935 0 : ShowSevereInvalidKey(state, eoh, cAlphaFieldNames(AlphaNum), Alphas(AlphaNum));
5936 0 : ErrorsFound = true;
5937 : }
5938 :
5939 80 : if (System(RefrigSysNum).NumStages == 1 && (System(RefrigSysNum).intercoolerType == IntercoolerType::Flash ||
5940 39 : System(RefrigSysNum).intercoolerType == IntercoolerType::ShellAndCoil)) {
5941 0 : ShowSevereError(
5942 0 : state, format("{}{}=\"{}\", A single-stage compression system", RoutineName, CurrentModuleObject, System(RefrigSysNum).Name));
5943 0 : ShowContinueError(state, "has been specified with an intercooler. Verify that the number of compressor stages");
5944 0 : ShowContinueError(state, "and the intercooler type are consistent.");
5945 0 : ErrorsFound = true;
5946 41 : } else if (System(RefrigSysNum).NumStages == 2 && System(RefrigSysNum).intercoolerType == IntercoolerType::None) {
5947 0 : ShowSevereError(state,
5948 0 : format("{}{}=\"{}\", A two-stage compression system", RoutineName, CurrentModuleObject, System(RefrigSysNum).Name));
5949 0 : ShowContinueError(state, "has been specified without an intercooler. Verify that the number of compressor stages");
5950 0 : ShowContinueError(state, "and the intercooler type are consistent.");
5951 0 : ErrorsFound = true;
5952 : }
5953 :
5954 : // Shell-and-coil intercooler effectiveness
5955 41 : if (!lNumericBlanks(4)) {
5956 1 : System(RefrigSysNum).IntercoolerEffectiveness = Numbers(4);
5957 1 : if (System(RefrigSysNum).IntercoolerEffectiveness < 0.0 || System(RefrigSysNum).IntercoolerEffectiveness > 1.0) {
5958 0 : ShowWarningError(state,
5959 0 : format("{}{}=\"{}\", The specified value for the", RoutineName, CurrentModuleObject, System(RefrigSysNum).Name));
5960 0 : ShowContinueError(
5961 : state,
5962 0 : format("{} = {:.2R} is invalid. This value must be", cNumericFieldNames(4), System(RefrigSysNum).IntercoolerEffectiveness));
5963 0 : ShowContinueError(state, "between 0.0 and 1.0. The default value of 0.8 will be used.");
5964 0 : System(RefrigSysNum).IntercoolerEffectiveness = 0.8;
5965 : }
5966 : } else {
5967 40 : System(RefrigSysNum).IntercoolerEffectiveness = 0.8;
5968 : }
5969 :
5970 : // Read the high-stage compressor info, if two-stage compression has been specified.
5971 41 : AlphaNum = 13;
5972 41 : int NumHiStageCompressorsSys = 0;
5973 41 : if (System(RefrigSysNum).NumStages == 2) {
5974 2 : if (lAlphaBlanks(AlphaNum)) {
5975 : // blank input where must have high-stage compressor or compressor list input.
5976 0 : ShowSevereError(state,
5977 0 : format("{}{}=\"{}\", {} must be input for two-stage compression systems.",
5978 : RoutineName,
5979 : CurrentModuleObject,
5980 0 : System(RefrigSysNum).Name,
5981 : cAlphaFieldNames(AlphaNum)));
5982 0 : ErrorsFound = true;
5983 : } else { // Entry for Alphas(AlphaNum) can be either a compressor name or a compressorlist name
5984 2 : int ListNum = Util::FindItemInList(Alphas(AlphaNum), CompressorLists);
5985 2 : int CompNum = Util::FindItemInList(Alphas(AlphaNum), Compressor);
5986 2 : if ((ListNum == 0) && (CompNum == 0)) { // name doesn't match either a compressor or a compressor list
5987 0 : ShowSevereError(state,
5988 0 : format(R"({}{}="{}", {} has an invalid or undefined value="{}".)",
5989 : RoutineName,
5990 : CurrentModuleObject,
5991 0 : System(RefrigSysNum).Name,
5992 : cAlphaFieldNames(AlphaNum),
5993 : Alphas(AlphaNum)));
5994 0 : ErrorsFound = true;
5995 2 : } else if ((ListNum != 0) && (CompNum != 0)) { // have compressor list and compressor with same name
5996 0 : ShowSevereError(state,
5997 0 : format(R"({}{}="{}", {} has a non-unique name used for both Compressor and CompressorList name: "{}".)",
5998 : RoutineName,
5999 : CurrentModuleObject,
6000 0 : System(RefrigSysNum).Name,
6001 : cAlphaFieldNames(AlphaNum),
6002 : Alphas(AlphaNum)));
6003 0 : ErrorsFound = true;
6004 2 : } else if (ListNum != 0) {
6005 2 : NumHiStageCompressorsSys = CompressorLists(ListNum).NumCompressors;
6006 2 : System(RefrigSysNum).NumHiStageCompressors = NumHiStageCompressorsSys;
6007 2 : if (!allocated(System(RefrigSysNum).HiStageCompressorNum)) {
6008 2 : System(RefrigSysNum).HiStageCompressorNum.allocate(NumHiStageCompressorsSys);
6009 : }
6010 4 : System(RefrigSysNum).HiStageCompressorNum({1, NumHiStageCompressorsSys}) =
6011 6 : CompressorLists(ListNum).CompItemNum({1, NumHiStageCompressorsSys});
6012 0 : } else if (CompNum != 0) {
6013 0 : NumHiStageCompressorsSys = 1;
6014 0 : System(RefrigSysNum).NumHiStageCompressors = 1;
6015 0 : if (!allocated(System(RefrigSysNum).HiStageCompressorNum)) {
6016 0 : System(RefrigSysNum).HiStageCompressorNum.allocate(NumHiStageCompressorsSys);
6017 : }
6018 0 : System(RefrigSysNum).HiStageCompressorNum(NumHiStageCompressorsSys) = CompNum;
6019 : }
6020 : }
6021 : }
6022 :
6023 : // Determine intercooler pressure and temperature at design conditions
6024 41 : if (System(RefrigSysNum).NumStages == 2) {
6025 : Real64 PCond =
6026 2 : System(RefrigSysNum).refrig->getSatPressure(state, Condenser(System(RefrigSysNum).CondenserNum(1)).RatedTCondense, RoutineName);
6027 2 : Real64 PEvap = System(RefrigSysNum).refrig->getSatPressure(state, System(RefrigSysNum).TEvapDesign, RoutineName);
6028 2 : System(RefrigSysNum).PIntercooler = std::sqrt(PCond * PEvap);
6029 2 : System(RefrigSysNum).TIntercooler =
6030 2 : System(RefrigSysNum).refrig->getSatTemperature(state, System(RefrigSysNum).PIntercooler, RoutineName);
6031 : } // NumStages
6032 :
6033 : // Sum capacity of single-stage compressors or low-stage compressors if two-stage system
6034 41 : Real64 NominalTotalCompCap = 0.0;
6035 209 : for (int CompIndex = 1; CompIndex <= NumCompressorsSys; ++CompIndex) {
6036 168 : int CompNum = System(RefrigSysNum).CompressorNum(CompIndex);
6037 168 : if (!Compressor(CompNum).TransFlag) { // Subcritical Compressor
6038 168 : if (System(RefrigSysNum).NumStages == 1) { // Single-stage compression
6039 162 : Compressor(CompNum).NomCap = Curve::CurveValue(state,
6040 162 : Compressor(CompNum).CapacityCurvePtr,
6041 162 : System(RefrigSysNum).TEvapDesign,
6042 162 : Condenser(System(RefrigSysNum).CondenserNum(1)).RatedTCondense);
6043 162 : NominalTotalCompCap += Compressor(CompNum).NomCap;
6044 162 : ++Compressor(CompNum).NumSysAttach;
6045 : } else { // Two-stage compression, low-stage compressors
6046 6 : Compressor(CompNum).NomCap = Curve::CurveValue(
6047 6 : state, Compressor(CompNum).CapacityCurvePtr, System(RefrigSysNum).TEvapDesign, System(RefrigSysNum).TIntercooler);
6048 6 : NominalTotalCompCap += Compressor(CompNum).NomCap;
6049 6 : ++Compressor(CompNum).NumSysAttach;
6050 : } // NumStages
6051 : } else { // Transcritical compressor attached to subcritical refrigeration cycle
6052 0 : ShowSevereError(state,
6053 0 : format("{}{}. A transcritical compressor is attached to a subcritical refrigeration system.",
6054 : RoutineName,
6055 : CurrentModuleObject));
6056 0 : ShowContinueError(state,
6057 : "Check input to ensure that subcritical compressors are connected only to subcritical systems and "
6058 : "transcritical compressors are connected only to transcritical systems.");
6059 0 : ErrorsFound = true;
6060 : } // .NOT. Compressor(CompNum)%TransFlag
6061 : }
6062 :
6063 41 : Real64 NominalTotalHiStageCompCap(0.0); // Total of nominal high-stage compressor capacities, used for rough input check (W)
6064 :
6065 : // Sum capacity of high-stage compressors if two stage system
6066 41 : if (System(RefrigSysNum).NumStages == 2) {
6067 10 : for (int CompIndex = 1; CompIndex <= NumHiStageCompressorsSys; ++CompIndex) {
6068 8 : int CompNum = System(RefrigSysNum).HiStageCompressorNum(CompIndex);
6069 8 : if (!Compressor(CompNum).TransFlag) { // Subcritical Compressor
6070 8 : Compressor(CompNum).NomCap = Curve::CurveValue(state,
6071 8 : Compressor(CompNum).CapacityCurvePtr,
6072 8 : System(RefrigSysNum).TIntercooler,
6073 8 : Condenser(System(RefrigSysNum).CondenserNum(1)).RatedTCondense);
6074 8 : NominalTotalHiStageCompCap += Compressor(CompNum).NomCap;
6075 8 : ++Compressor(CompNum).NumSysAttach;
6076 : } else { // Transcritical compressor attached to subcritical refrigeration cycle
6077 0 : ShowSevereError(state,
6078 0 : format("{}{}. A transcritical compressor is attached to a subcritical refrigeration system.",
6079 : RoutineName,
6080 : CurrentModuleObject));
6081 0 : ShowContinueError(state,
6082 : "Check input to ensure that subcritical compressors are connected only to subcritical systems and "
6083 : "transcritical compressors are connected only to transcritical systems.");
6084 0 : ErrorsFound = true;
6085 : }
6086 : }
6087 : } // NumStages
6088 :
6089 : // Compare the rated capacity of compressor, condenser, and cases.
6090 : // Note, rated capacities can be far off from operating capacities, but rough check.
6091 41 : Real64 NominalCondCap = Condenser(System(RefrigSysNum).CondenserNum(1)).RatedCapacity;
6092 41 : if (System(RefrigSysNum).SystemRejectHeatToZone) {
6093 3 : NominalCondCap *= 2.0;
6094 : }
6095 41 : if (System(RefrigSysNum).NumStages == 1) { // Single-stage system
6096 39 : if ((NominalTotalCompCap < (0.7 * NominalTotalCoolingCap)) || (NominalCondCap < (1.3 * NominalTotalCoolingCap))) {
6097 2 : ShowWarningError(state,
6098 2 : format("{}=\"{}\", You may wish to check the system sizing. Total nominal cooling capacity is {:.0R}W. "
6099 : "Condenser capacity is {:.0R}W. Nominal compressor capacity is {:.0R}W.",
6100 : CurrentModuleObject,
6101 1 : System(RefrigSysNum).Name,
6102 : NominalTotalCoolingCap,
6103 : NominalCondCap,
6104 : NominalTotalCompCap));
6105 : }
6106 2 : } else if (System(RefrigSysNum).NumStages == 2) { // Two-stage system
6107 2 : if ((NominalTotalHiStageCompCap < (0.7 * NominalTotalCoolingCap)) || (NominalCondCap < (1.3 * NominalTotalCoolingCap))) {
6108 0 : ShowWarningError(state,
6109 0 : format("{}=\"{}\", You may wish to check the system sizing. Total nominal cooling capacity is {:.0R}W. "
6110 : "Condenser capacity is {:.0R}W. Nominal compressor capacity is {:.0R}W.",
6111 : CurrentModuleObject,
6112 0 : System(RefrigSysNum).Name,
6113 : NominalTotalCoolingCap,
6114 : NominalCondCap,
6115 : NominalTotalCompCap));
6116 : }
6117 : } // NumStages
6118 :
6119 : } // Refrigeration systems
6120 :
6121 : // Assign coilflags to compressors, condensers, and subcoolers (coils calc on sys time step, all other refrig loads on zone time step, so
6122 : // can't mix on one system) need to do here once again after all cascade condensers and cascade sink systems have been identified
6123 57 : for (RefrigSysNum = 1; RefrigSysNum <= state.dataRefrigCase->NumRefrigSystems; ++RefrigSysNum) {
6124 : // assign flags to all condensers to match system below condenser (system rejecting heat to cascade condenser)
6125 41 : int CondNum = System(RefrigSysNum).CondenserNum(1); // right now only have one condenser per system
6126 41 : Condenser(CondNum).CoilFlag = System(RefrigSysNum).CoilFlag;
6127 209 : for (int CompIndex = 1; CompIndex <= System(RefrigSysNum).NumCompressors; ++CompIndex) {
6128 168 : int CompNum = System(RefrigSysNum).CompressorNum(CompIndex);
6129 168 : Compressor(CompNum).CoilFlag = System(RefrigSysNum).CoilFlag;
6130 : }
6131 :
6132 : } // assign coil flags to all condensers
6133 :
6134 : // Finished setting cascade condenser coilflags to match system rejecting heat to the cascade condenser
6135 : // Now have to see if there's a mismatch in the coilflag with the system absorbing heat from the cascade condenser
6136 : // Note a system can cool multiple cascade condensers. If so, need to be sure all are consistent - all coil or all non-coil(called case
6137 : // here) check for consistency of loads (coils calc on sys time step, all others on zone time step, so can't mix on one system)
6138 57 : for (RefrigSysNum = 1; RefrigSysNum <= state.dataRefrigCase->NumRefrigSystems;
6139 : ++RefrigSysNum) { // check flags for systems reflect all cascade loads
6140 41 : if (System(RefrigSysNum).NumCascadeLoads == 0) {
6141 40 : continue;
6142 : }
6143 1 : if (System(RefrigSysNum).CoilFlag) { // system already identified as serving coils
6144 0 : for (int CondID = 1; CondID <= state.dataRefrigCase->NumRefrigCondensers; ++CondID) {
6145 0 : if (Condenser(CondID).CondenserType != DataHeatBalance::RefrigCondenserType::Cascade) {
6146 0 : continue;
6147 : }
6148 0 : if (RefrigSysNum != Condenser(CondID).CascadeSinkSystemID) {
6149 0 : continue; // this condenser is not a cascade load on this system
6150 : }
6151 0 : if (!Condenser(CondID).CoilFlag) {
6152 : // would mean system already serving coil loads and this condenser cooling system with case-type loads
6153 0 : ShowSevereError(state,
6154 0 : format("{}{}=\"{}\", Serves an inconsistent mixture of loads. Coil-type loads are served on a different "
6155 : "time step than case or walkin loads. Compare loads on system served by cascade condenser \"{}",
6156 : RoutineName,
6157 : CurrentModuleObject,
6158 0 : System(RefrigSysNum).Name,
6159 0 : Condenser(CondID).Name));
6160 0 : ErrorsFound = true;
6161 : }
6162 : } // CondID
6163 : } else { // %coilflag == false, so no coil loads prev identified directly or through secondary loop
6164 : // Flag to help verify load type with loads served by systems cooled by cascade condensers
6165 1 : bool CaseLoads = false;
6166 1 : int NumCascadeLoadsChecked = 0;
6167 4 : for (int CondID = 1; CondID <= state.dataRefrigCase->NumRefrigCondensers; ++CondID) { // look at All cascade condenser loads on system
6168 3 : if (Condenser(CondID).CondenserType != DataHeatBalance::RefrigCondenserType::Cascade) {
6169 2 : continue;
6170 : }
6171 1 : if (RefrigSysNum != Condenser(CondID).CascadeSinkSystemID) {
6172 0 : continue; // this condenser is not a cascade load on this system
6173 : }
6174 1 : ++NumCascadeLoadsChecked;
6175 1 : if ((CaseLoads) && (!Condenser(CondID).CoilFlag) && (!System(RefrigSysNum).CoilFlag)) {
6176 0 : continue;
6177 : }
6178 : // all loads to date are case-type and properly flagged with consistent coilflags
6179 : //(note caseloads could be true if prev cascade load checked is serving a case-type system)
6180 1 : if (NumCascadeLoadsChecked == 1) {
6181 1 : if (Condenser(CondID).CoilFlag) {
6182 0 : System(RefrigSysNum).CoilFlag = true;
6183 : // setting system coilflag if 1st cascade condenser served has coils (system has no case-type loads up to this point)
6184 : } else { // condenser is not serving coils, but case-type loads
6185 1 : CaseLoads = true;
6186 : // system coilflag already set to false
6187 : } // Condenser%CoilFlag
6188 : } else { // numcascadeloadschecked > 1
6189 0 : if (System(RefrigSysNum).CoilFlag != Condenser(CondID).CoilFlag) {
6190 0 : ShowSevereError(
6191 : state,
6192 0 : format("{}{}=\"{}\", Serves an inconsistent mixture of loads. Coil-type loads are served on a different time "
6193 : "step than case or walkin loads. Compare loads on system served by cascade condenser \"{}",
6194 : RoutineName,
6195 : CurrentModuleObject,
6196 0 : System(RefrigSysNum).Name,
6197 0 : Condenser(CondID).Name));
6198 0 : ErrorsFound = true;
6199 : }
6200 : } // numcascadeloadschecked > 1
6201 : } // CondID
6202 : } //(System%coilflag)
6203 : } // Refrigeration systems checking coilflag consistency with cascade condenser loads
6204 :
6205 : } //(NumRefrigSystems > 0)
6206 :
6207 : // after the systems have been read, can finish the mechanical subcooler/system interactions
6208 : // System%NumMechSCServed=0
6209 801 : if (state.dataRefrigCase->NumSimulationSubcoolers > 0) {
6210 3 : for (int SubcoolerNum = 1; SubcoolerNum <= state.dataRefrigCase->NumSimulationSubcoolers; ++SubcoolerNum) {
6211 2 : if (Subcooler(SubcoolerNum).subcoolerType == SubcoolerType::LiquidSuction) {
6212 1 : continue;
6213 : }
6214 2 : Subcooler(SubcoolerNum).MechSourceSysID =
6215 1 : state.dataInputProcessing->inputProcessor->getObjectItemNum(state, "Refrigeration:System", Subcooler(SubcoolerNum).MechSourceSys);
6216 1 : if (Subcooler(SubcoolerNum).MechSourceSysID == 0) {
6217 0 : ShowSevereError(state,
6218 0 : format(R"({}{}="{}", Mechanical Subcooler has an invalid Source Refrigeration:System="{}".)",
6219 : RoutineName,
6220 : CurrentModuleObject,
6221 0 : Subcooler(SubcoolerNum).Name,
6222 0 : Subcooler(SubcoolerNum).MechSourceSys));
6223 0 : ErrorsFound = true;
6224 : } else {
6225 1 : if (System(Subcooler(SubcoolerNum).MechSourceSysID).CoilFlag != Subcooler(SubcoolerNum).CoilFlag) {
6226 0 : ShowSevereError(state,
6227 0 : format("{}{}=\"{}\", Serves an inconsistent mixture of loads. Coil-type loads are served on a different time "
6228 : "step than case or walkin loads. Compare loads on system served by mechanical subcooler \"{}",
6229 : RoutineName,
6230 : CurrentModuleObject,
6231 0 : System(RefrigSysNum).Name,
6232 0 : Subcooler(SubcoolerNum).Name));
6233 0 : ErrorsFound = true;
6234 : }
6235 : } // error check
6236 : } // numsubcoolers
6237 :
6238 3 : for (RefrigSysNum = 1; RefrigSysNum <= state.dataRefrigCase->NumRefrigSystems; ++RefrigSysNum) {
6239 6 : for (int SubcoolerNum = 1; SubcoolerNum <= state.dataRefrigCase->NumSimulationSubcoolers; ++SubcoolerNum) {
6240 4 : if (Subcooler(SubcoolerNum).subcoolerType == SubcoolerType::LiquidSuction) {
6241 2 : continue;
6242 : }
6243 2 : if (Subcooler(SubcoolerNum).MechSourceSysID == RefrigSysNum) {
6244 1 : ++System(RefrigSysNum).NumMechSCServed;
6245 : }
6246 : }
6247 2 : if (System(RefrigSysNum).NumMechSCServed > 0) {
6248 1 : if (!allocated(System(RefrigSysNum).MechSCLoad)) {
6249 1 : System(RefrigSysNum).MechSCLoad.allocate(state.dataRefrigCase->NumSimulationSubcoolers);
6250 : }
6251 : }
6252 : }
6253 : } // NumSimulationSubcoolers > 0
6254 :
6255 : // ********** READ TRANSCRITICAL REFRIGERATION SYSTEMS **********
6256 :
6257 801 : if (state.dataRefrigCase->NumTransRefrigSystems > 0) {
6258 1 : CurrentModuleObject = "Refrigeration:TranscriticalSystem";
6259 2 : for (int TransRefrigSysNum = 1; TransRefrigSysNum <= state.dataRefrigCase->NumTransRefrigSystems; ++TransRefrigSysNum) {
6260 1 : state.dataInputProcessing->inputProcessor->getObjectItem(state,
6261 : CurrentModuleObject,
6262 : TransRefrigSysNum,
6263 : Alphas,
6264 : NumAlphas,
6265 : Numbers,
6266 : NumNumbers,
6267 : IOStatus,
6268 : lNumericBlanks,
6269 : lAlphaBlanks,
6270 : cAlphaFieldNames,
6271 : cNumericFieldNames);
6272 :
6273 1 : ErrorObjectHeader eoh{routineName, CurrentModuleObject, Alphas(1)};
6274 :
6275 1 : Util::IsNameEmpty(state, Alphas(1), CurrentModuleObject, ErrorsFound);
6276 :
6277 1 : TransSystem(TransRefrigSysNum).Name = Alphas(1);
6278 :
6279 : // Read refrigerant for this system
6280 1 : AlphaNum = 8;
6281 1 : TransSystem(TransRefrigSysNum).RefrigerantName = Alphas(AlphaNum);
6282 1 : if (TransSystem(TransRefrigSysNum).RefrigerantName.empty()) {
6283 0 : ShowSevereEmptyField(state, eoh, Alphas(AlphaNum));
6284 0 : ErrorsFound = true;
6285 1 : } else if ((TransSystem(TransRefrigSysNum).refrig = Fluid::GetRefrig(state, TransSystem(TransRefrigSysNum).RefrigerantName)) == nullptr) {
6286 0 : ShowSevereItemNotFound(state, eoh, cAlphaFieldNames(AlphaNum), Alphas(AlphaNum));
6287 0 : ErrorsFound = true;
6288 : }
6289 : // error messages for refrigerants already found in fluidproperties
6290 :
6291 : // Read Transcritical System Type: SingleStage or TwoStage
6292 1 : if (lAlphaBlanks(2)) {
6293 0 : ShowSevereEmptyField(state, eoh, cAlphaFieldNames(2));
6294 0 : ErrorsFound = true;
6295 1 : } else if ((TransSystem(TransRefrigSysNum).transSysType = static_cast<TransSysType>(getEnumValue(transSysTypeNamesUC, Alphas(2)))) ==
6296 : TransSysType::Invalid) {
6297 0 : ShowSevereInvalidKey(state, eoh, cAlphaFieldNames(1), Alphas(2));
6298 0 : ErrorsFound = true;
6299 1 : } else if (TransSystem(TransRefrigSysNum).transSysType == TransSysType::SingleStage && lAlphaBlanks(3)) {
6300 : // No medium temperature loads specified for a SingleStage system - display error
6301 0 : ShowSevereEmptyField(state, eoh, cAlphaFieldNames(3), cAlphaFieldNames(2), Alphas(2));
6302 0 : ErrorsFound = true;
6303 1 : } else if (TransSystem(TransRefrigSysNum).transSysType == TransSysType::TwoStage && lAlphaBlanks(4)) {
6304 0 : ShowSevereEmptyField(state, eoh, cAlphaFieldNames(3), cAlphaFieldNames(2), Alphas(2));
6305 0 : ErrorsFound = true;
6306 : }
6307 :
6308 1 : int NumCasesMT = 0;
6309 1 : TransSystem(TransRefrigSysNum).NumCasesMT = 0;
6310 1 : int NumCasesLT = 0;
6311 1 : TransSystem(TransRefrigSysNum).NumCasesLT = 0;
6312 1 : int NumWalkInsMT = 0;
6313 1 : TransSystem(TransRefrigSysNum).NumWalkInsMT = 0;
6314 1 : int NumWalkInsLT = 0;
6315 1 : TransSystem(TransRefrigSysNum).NumWalkInsLT = 0;
6316 1 : Real64 NominalTotalCaseCapMT = 0.0;
6317 1 : Real64 NominalTotalCaseCapLT = 0.0;
6318 1 : Real64 NominalTotalWalkInCapMT = 0.0;
6319 1 : Real64 NominalTotalWalkInCapLT = 0.0;
6320 : Real64 NominalTotalCoolingCap;
6321 1 : TransSystem(TransRefrigSysNum).RefInventory = 0.0;
6322 :
6323 : // Check for Medium Temperature Case or Walk-In or CaseAndWalkInList names
6324 1 : AlphaNum = 3;
6325 :
6326 1 : if (!lAlphaBlanks(AlphaNum)) {
6327 :
6328 : // Entry for Alphas(AlphaNum) can be either a Case, WalkIn or CaseAndWalkInList name
6329 1 : int CaseAndWalkInListNum = 0;
6330 1 : int CaseNum = 0;
6331 1 : int WalkInNum = 0;
6332 1 : if (state.dataRefrigCase->NumSimulationCaseAndWalkInLists > 0) {
6333 1 : CaseAndWalkInListNum = Util::FindItemInList(Alphas(AlphaNum), CaseAndWalkInList);
6334 : }
6335 1 : if (state.dataRefrigCase->NumSimulationCases > 0) {
6336 1 : CaseNum = Util::FindItemInList(Alphas(AlphaNum), RefrigCase);
6337 : }
6338 1 : if (state.dataRefrigCase->NumSimulationWalkIns > 0) {
6339 1 : WalkInNum = Util::FindItemInList(Alphas(AlphaNum), WalkIn);
6340 : }
6341 1 : int NumNameMatches = 0;
6342 1 : if (CaseAndWalkInListNum != 0) {
6343 1 : ++NumNameMatches;
6344 : }
6345 1 : if (CaseNum != 0) {
6346 0 : ++NumNameMatches;
6347 : }
6348 1 : if (WalkInNum != 0) {
6349 0 : ++NumNameMatches;
6350 : }
6351 :
6352 1 : if (NumNameMatches != 1) { // name must uniquely point to a list or a single case or walkin or coil
6353 0 : ErrorsFound = true;
6354 0 : if (NumNameMatches == 0) {
6355 0 : ShowSevereError(state,
6356 0 : format("{}{}=\"{}\", has an invalid {}: {}",
6357 : RoutineName,
6358 : CurrentModuleObject,
6359 0 : TransSystem(TransRefrigSysNum).Name,
6360 : cAlphaFieldNames(AlphaNum),
6361 : Alphas(AlphaNum)));
6362 0 : } else if (NumNameMatches > 1) {
6363 0 : ShowSevereError(state,
6364 0 : format("{}{}=\"{}\", has a non-unique name that could be either a {}: {}",
6365 : RoutineName,
6366 : CurrentModuleObject,
6367 0 : TransSystem(TransRefrigSysNum).Name,
6368 : cAlphaFieldNames(AlphaNum),
6369 : Alphas(AlphaNum)));
6370 : } // num matches = 0 or > 1
6371 1 : } else if (CaseAndWalkInListNum != 0) { // Name points to a CaseAndWalkInList
6372 1 : NumCasesMT = CaseAndWalkInList(CaseAndWalkInListNum).NumCases;
6373 1 : NumWalkInsMT = CaseAndWalkInList(CaseAndWalkInListNum).NumWalkIns;
6374 1 : TransSystem(TransRefrigSysNum).NumCasesMT = NumCasesMT;
6375 1 : TransSystem(TransRefrigSysNum).NumWalkInsMT = NumWalkInsMT;
6376 1 : if (NumCasesMT > 0) {
6377 1 : if (!allocated(TransSystem(TransRefrigSysNum).CaseNumMT)) {
6378 1 : TransSystem(TransRefrigSysNum).CaseNumMT.allocate(NumCasesMT);
6379 : }
6380 2 : TransSystem(TransRefrigSysNum).CaseNumMT({1, NumCasesMT}) =
6381 3 : CaseAndWalkInList(CaseAndWalkInListNum).CaseItemNum({1, NumCasesMT});
6382 : }
6383 1 : if (NumWalkInsMT > 0) {
6384 0 : if (!allocated(TransSystem(TransRefrigSysNum).WalkInNumMT)) {
6385 0 : TransSystem(TransRefrigSysNum).WalkInNumMT.allocate(NumWalkInsMT);
6386 : }
6387 0 : TransSystem(TransRefrigSysNum).WalkInNumMT({1, NumWalkInsMT}) =
6388 0 : CaseAndWalkInList(CaseAndWalkInListNum).WalkInItemNum({1, NumWalkInsMT});
6389 : }
6390 0 : } else if (CaseNum != 0) { // Name points to a case
6391 0 : NumCasesMT = 1;
6392 0 : TransSystem(TransRefrigSysNum).NumCasesMT = 1;
6393 0 : if (!allocated(TransSystem(TransRefrigSysNum).CaseNumMT)) {
6394 0 : TransSystem(TransRefrigSysNum).CaseNumMT.allocate(NumCasesMT);
6395 : }
6396 0 : TransSystem(TransRefrigSysNum).CaseNumMT(NumCases) = CaseNum;
6397 0 : } else if (WalkInNum != 0) { // Name points to a walkin
6398 0 : NumWalkInsMT = 1;
6399 0 : TransSystem(TransRefrigSysNum).NumWalkInsMT = 1;
6400 0 : if (!allocated(TransSystem(TransRefrigSysNum).WalkInNumMT)) {
6401 0 : TransSystem(TransRefrigSysNum).WalkInNumMT.allocate(NumWalkInsMT);
6402 : }
6403 0 : TransSystem(TransRefrigSysNum).WalkInNumMT(NumWalkIns) = WalkInNum;
6404 : } // NumNameMatches /= 1
6405 : } // blank input for cases, walkins, or caseandwalkinlist
6406 :
6407 1 : if (NumCasesMT > 0) {
6408 : // Find lowest design evap T
6409 : // Sum rated capacity of all MT cases on system
6410 4 : for (int caseIndex = 1; caseIndex <= NumCasesMT; ++caseIndex) {
6411 : // mark all cases on system as used by this system - checking for unused or non-unique cases
6412 3 : int CaseNum = TransSystem(TransRefrigSysNum).CaseNumMT(caseIndex);
6413 3 : ++RefrigCase(CaseNum).NumSysAttach;
6414 3 : NominalTotalCaseCapMT += RefrigCase(CaseNum).DesignRatedCap;
6415 3 : TransSystem(TransRefrigSysNum).RefInventory += RefrigCase(CaseNum).DesignRefrigInventory;
6416 3 : if (caseIndex == 1) { // look for lowest case design evap T for system
6417 1 : TransSystem(TransRefrigSysNum).TEvapDesignMT = RefrigCase(CaseNum).EvapTempDesign;
6418 : } else {
6419 2 : TransSystem(TransRefrigSysNum).TEvapDesignMT =
6420 2 : min(RefrigCase(CaseNum).EvapTempDesign, TransSystem(TransRefrigSysNum).TEvapDesignMT);
6421 : }
6422 : } // CaseIndex=1,NumCases
6423 : } // NumcasesMT > 0
6424 :
6425 1 : if (NumWalkInsMT > 0) {
6426 0 : for (int WalkInIndex = 1; WalkInIndex <= NumWalkInsMT; ++WalkInIndex) {
6427 0 : int WalkInID = TransSystem(TransRefrigSysNum).WalkInNumMT(WalkInIndex);
6428 : // mark all WalkIns on rack as used by this system (checking for unused or non-unique WalkIns)
6429 0 : ++WalkIn(WalkInID).NumSysAttach;
6430 0 : NominalTotalWalkInCapMT += WalkIn(WalkInID).DesignRatedCap;
6431 0 : TransSystem(TransRefrigSysNum).RefInventory += WalkIn(WalkInID).DesignRefrigInventory;
6432 : // Defrost capacity is treated differently by compressor racks and detailed systems,
6433 : // so this value may be adjusted (or warnings issued) after the walkin is assigned
6434 : // to either the rack or system.
6435 : // for walkins served by detailed system, need capacity for both fluid and electric types.
6436 0 : if (WalkIn(WalkInID).DefrostCapacity <= -98.0) {
6437 : // - 99 used as a flag for blank input error message for detailed systems
6438 0 : ShowSevereError(state,
6439 0 : format("{}Refrigeration:WalkIn=\"{}\", Defrost capacity must be greater than or equal to 0 W for "
6440 : "electric and hotfluid defrost types",
6441 : RoutineName,
6442 0 : WalkIn(WalkInID).Name));
6443 0 : ErrorsFound = true;
6444 : }
6445 : // Find design evaporating temperature for system by getting min design evap for ALL loads
6446 0 : if ((WalkInIndex == 1) && (TransSystem(TransRefrigSysNum).NumCasesMT == 0)) {
6447 : // note use walk in index, not walkinid here to get
6448 : // first walkin on this suction group/system
6449 0 : TransSystem(TransRefrigSysNum).TEvapDesignMT = WalkIn(WalkInID).TEvapDesign;
6450 : } else {
6451 0 : TransSystem(TransRefrigSysNum).TEvapDesignMT =
6452 0 : min(WalkIn(WalkInID).TEvapDesign, TransSystem(TransRefrigSysNum).TEvapDesignMT);
6453 : }
6454 : } // WalkInIndex=1,NumWalkIns
6455 : } // NumWalkInsMT > 0
6456 :
6457 : // Check for Low Temperature Case or Walk-In or CaseAndWalkInList names
6458 1 : AlphaNum = 4;
6459 1 : if (!lAlphaBlanks(AlphaNum)) {
6460 :
6461 : // Entry for Alphas(AlphaNum) can be either a Case, WalkIn or CaseAndWalkInList name
6462 1 : int CaseAndWalkInListNum = 0;
6463 1 : int CaseNum = 0;
6464 1 : int WalkInNum = 0;
6465 1 : if (state.dataRefrigCase->NumSimulationCaseAndWalkInLists > 0) {
6466 1 : CaseAndWalkInListNum = Util::FindItemInList(Alphas(AlphaNum), CaseAndWalkInList);
6467 : }
6468 1 : if (state.dataRefrigCase->NumSimulationCases > 0) {
6469 1 : CaseNum = Util::FindItemInList(Alphas(AlphaNum), RefrigCase);
6470 : }
6471 1 : if (state.dataRefrigCase->NumSimulationWalkIns > 0) {
6472 1 : WalkInNum = Util::FindItemInList(Alphas(AlphaNum), WalkIn);
6473 : }
6474 1 : int NumNameMatches = 0;
6475 1 : if (CaseAndWalkInListNum != 0) {
6476 1 : ++NumNameMatches;
6477 : }
6478 1 : if (CaseNum != 0) {
6479 0 : ++NumNameMatches;
6480 : }
6481 1 : if (WalkInNum != 0) {
6482 0 : ++NumNameMatches;
6483 : }
6484 :
6485 1 : if (NumNameMatches != 1) { // name must uniquely point to a list or a single case or walkin or coil
6486 0 : ErrorsFound = true;
6487 0 : if (NumNameMatches == 0) {
6488 0 : ShowSevereError(state,
6489 0 : format("{}{}=\"{}\", has an invalid {}: {}",
6490 : RoutineName,
6491 : CurrentModuleObject,
6492 0 : TransSystem(TransRefrigSysNum).Name,
6493 : cAlphaFieldNames(AlphaNum),
6494 : Alphas(AlphaNum)));
6495 0 : } else if (NumNameMatches > 1) {
6496 0 : ShowSevereError(state,
6497 0 : format("{}{}=\"{}\", has a non-unique name that could be either a {}: {}",
6498 : RoutineName,
6499 : CurrentModuleObject,
6500 0 : TransSystem(TransRefrigSysNum).Name,
6501 : cAlphaFieldNames(AlphaNum),
6502 : Alphas(AlphaNum)));
6503 : } // num matches = 0 or > 1
6504 1 : } else if (CaseAndWalkInListNum != 0) { // Name points to a CaseAndWalkInList
6505 1 : NumCasesLT = CaseAndWalkInList(CaseAndWalkInListNum).NumCases;
6506 1 : NumWalkInsLT = CaseAndWalkInList(CaseAndWalkInListNum).NumWalkIns;
6507 1 : TransSystem(TransRefrigSysNum).NumCasesLT = NumCasesLT;
6508 1 : TransSystem(TransRefrigSysNum).NumWalkInsLT = NumWalkInsLT;
6509 1 : if (NumCasesLT > 0) {
6510 1 : if (!allocated(TransSystem(TransRefrigSysNum).CaseNumLT)) {
6511 1 : TransSystem(TransRefrigSysNum).CaseNumLT.allocate(NumCasesLT);
6512 : }
6513 2 : TransSystem(TransRefrigSysNum).CaseNumLT({1, NumCasesLT}) =
6514 3 : CaseAndWalkInList(CaseAndWalkInListNum).CaseItemNum({1, NumCasesLT});
6515 : }
6516 1 : if (NumWalkInsLT > 0) {
6517 1 : if (!allocated(TransSystem(TransRefrigSysNum).WalkInNumLT)) {
6518 1 : TransSystem(TransRefrigSysNum).WalkInNumLT.allocate(NumWalkInsLT);
6519 : }
6520 2 : TransSystem(TransRefrigSysNum).WalkInNumLT({1, NumWalkInsLT}) =
6521 3 : CaseAndWalkInList(CaseAndWalkInListNum).WalkInItemNum({1, NumWalkInsLT});
6522 : }
6523 0 : } else if (CaseNum != 0) { // Name points to a case
6524 0 : NumCasesLT = 1;
6525 0 : TransSystem(TransRefrigSysNum).NumCasesLT = 1;
6526 0 : if (!allocated(TransSystem(TransRefrigSysNum).CaseNumLT)) {
6527 0 : TransSystem(TransRefrigSysNum).CaseNumLT.allocate(NumCasesLT);
6528 : }
6529 0 : TransSystem(TransRefrigSysNum).CaseNumLT(NumCases) = CaseNum;
6530 0 : } else if (WalkInNum != 0) { // Name points to a walkin
6531 0 : NumWalkInsLT = 1;
6532 0 : TransSystem(TransRefrigSysNum).NumWalkInsLT = 1;
6533 0 : if (!allocated(TransSystem(TransRefrigSysNum).WalkInNumLT)) {
6534 0 : TransSystem(TransRefrigSysNum).WalkInNumLT.allocate(NumWalkInsLT);
6535 : }
6536 0 : TransSystem(TransRefrigSysNum).WalkInNumLT(NumWalkIns) = WalkInNum;
6537 : } // NumNameMatches /= 1
6538 : } // blank input for cases, walkins, or caseandwalkinlist
6539 :
6540 1 : if (NumCasesLT > 0) {
6541 : // Find lowest design evap T
6542 : // Sum rated capacity of all LT cases on system
6543 5 : for (int caseIndex = 1; caseIndex <= NumCasesLT; ++caseIndex) {
6544 : // mark all cases on system as used by this system - checking for unused or non-unique cases
6545 4 : int CaseNum = TransSystem(TransRefrigSysNum).CaseNumLT(caseIndex);
6546 4 : ++RefrigCase(CaseNum).NumSysAttach;
6547 4 : NominalTotalCaseCapLT += RefrigCase(CaseNum).DesignRatedCap;
6548 4 : TransSystem(TransRefrigSysNum).RefInventory += RefrigCase(CaseNum).DesignRefrigInventory;
6549 4 : if (caseIndex == 1) { // look for lowest case design evap T for system
6550 1 : TransSystem(TransRefrigSysNum).TEvapDesignLT = RefrigCase(CaseNum).EvapTempDesign;
6551 : } else {
6552 3 : TransSystem(TransRefrigSysNum).TEvapDesignLT =
6553 3 : min(RefrigCase(CaseNum).EvapTempDesign, TransSystem(TransRefrigSysNum).TEvapDesignLT);
6554 : }
6555 : } // CaseIndex=1,NumCases
6556 : } // NumcasesLT > 0
6557 :
6558 1 : if (NumWalkInsLT > 0) {
6559 2 : for (int WalkInIndex = 1; WalkInIndex <= NumWalkInsLT; ++WalkInIndex) {
6560 1 : int WalkInID = TransSystem(TransRefrigSysNum).WalkInNumLT(WalkInIndex);
6561 : // mark all WalkIns on rack as used by this system (checking for unused or non-unique WalkIns)
6562 1 : ++WalkIn(WalkInID).NumSysAttach;
6563 1 : NominalTotalWalkInCapLT += WalkIn(WalkInID).DesignRatedCap;
6564 1 : TransSystem(TransRefrigSysNum).RefInventory += WalkIn(WalkInID).DesignRefrigInventory;
6565 : // Defrost capacity is treated differently by compressor racks and detailed systems,
6566 : // so this value may be adjusted (or warnings issued) after the walkin is assigned
6567 : // to either the rack or system.
6568 : // for walkins served by detailed system, need capacity for both fluid and electric types.
6569 1 : if (WalkIn(WalkInID).DefrostCapacity <= -98.0) {
6570 : // - 99 used as a flag for blank input error message for detailed systems
6571 0 : ShowSevereError(state,
6572 0 : format("{}Refrigeration:WalkIn=\"{}\", Defrost capacity must be greater than or equal to 0 W for "
6573 : "electric and hotfluid defrost types",
6574 : RoutineName,
6575 0 : WalkIn(WalkInID).Name));
6576 0 : ErrorsFound = true;
6577 : }
6578 : // Find design evaporating temperature for system by getting min design evap for ALL loads
6579 1 : if ((WalkInIndex == 1) && (TransSystem(TransRefrigSysNum).NumCasesLT == 0)) {
6580 : // note use walk in index, not walkinid here to get
6581 : // first walkin on this suction group/system
6582 0 : TransSystem(TransRefrigSysNum).TEvapDesignLT = WalkIn(WalkInID).TEvapDesign;
6583 : } else {
6584 1 : TransSystem(TransRefrigSysNum).TEvapDesignLT =
6585 1 : min(WalkIn(WalkInID).TEvapDesign, TransSystem(TransRefrigSysNum).TEvapDesignLT);
6586 : }
6587 : } // WalkInIndex=1,NumWalkIns
6588 : } // NumWalkInsMT > 0
6589 :
6590 1 : NominalTotalCoolingCap = NominalTotalCaseCapMT + NominalTotalCaseCapLT + NominalTotalWalkInCapMT + NominalTotalWalkInCapLT;
6591 :
6592 : // Read Gas Cooler
6593 : // currently assumes one gas cooler per refrigeration system and but multiple systems allowed per gas cooler
6594 1 : AlphaNum = 5;
6595 1 : int NumGasCoolers = 1;
6596 1 : if (!allocated(TransSystem(TransRefrigSysNum).GasCoolerNum)) {
6597 1 : TransSystem(TransRefrigSysNum).GasCoolerNum.allocate(NumGasCoolers);
6598 : }
6599 1 : TransSystem(TransRefrigSysNum).NumGasCoolers = 1;
6600 : // Find gascooler number
6601 1 : int GCNum = Util::FindItemInList(Alphas(AlphaNum), GasCooler);
6602 :
6603 1 : if (GCNum == 0) { // Invalid Gas Cooler attached to Transcritical Refrigeration System
6604 0 : ShowSevereError(state,
6605 0 : format(R"({}{}="{}", has an invalid {} defined as "{}".)",
6606 : RoutineName,
6607 : CurrentModuleObject,
6608 0 : TransSystem(TransRefrigSysNum).Name,
6609 : cAlphaFieldNames(AlphaNum),
6610 : Alphas(AlphaNum)));
6611 0 : ErrorsFound = true;
6612 1 : } else if (GCNum != 0) { // Gas Cooler attached to Transcritical Refrigeration System
6613 1 : TransSystem(TransRefrigSysNum).GasCoolerNum(NumGasCoolers) = GCNum;
6614 1 : TransSystem(TransRefrigSysNum).NumGasCoolers = 1;
6615 : // Now take care of case where multiple systems share a gas cooler
6616 1 : ++GasCooler(GCNum).NumSysAttach;
6617 1 : GasCooler(GCNum).SysNum(GasCooler(GCNum).NumSysAttach) = TransRefrigSysNum;
6618 2 : TransSystem(TransRefrigSysNum).RefInventory +=
6619 1 : GasCooler(GCNum).RefReceiverInventory + GasCooler(GCNum).RefPipingInventory + GasCooler(GCNum).RefOpCharge;
6620 1 : if (GasCooler(GCNum).GasCoolerRejectHeatToZone) {
6621 0 : TransSystem(TransRefrigSysNum).SystemRejectHeatToZone = true;
6622 : }
6623 : }
6624 :
6625 : // Read High Pressure Compressor
6626 1 : AlphaNum = 6;
6627 1 : int NumCompressorsSys = 0;
6628 1 : if (lAlphaBlanks(AlphaNum)) {
6629 : // blank input where must have compressor or compressor list input.
6630 0 : ShowSevereError(state, format("{}{} {}\" : must be input.", RoutineName, CurrentModuleObject, cAlphaFieldNames(AlphaNum)));
6631 0 : ErrorsFound = true;
6632 : } else { // Entry for Alphas(AlphaNum) can be either a compressor name or a compressorlist name
6633 1 : int ListNum = Util::FindItemInList(Alphas(AlphaNum), CompressorLists);
6634 1 : int CompNum = Util::FindItemInList(Alphas(AlphaNum), Compressor);
6635 1 : if ((ListNum == 0) && (CompNum == 0)) { // name doesn't match either a compressor or a compressor list
6636 0 : ShowSevereError(state,
6637 0 : format(R"({}{}, "{}", has an invalid or undefined value="{}".)",
6638 : RoutineName,
6639 : CurrentModuleObject,
6640 : cAlphaFieldNames(AlphaNum),
6641 : Alphas(AlphaNum)));
6642 0 : ErrorsFound = true;
6643 1 : } else if ((ListNum != 0) && (CompNum != 0)) { // have compressor list and compressor with same name
6644 0 : ShowSevereError(state,
6645 0 : format("{}{} {}, has a non-unique name used for both Compressor and CompressorList name: \"{}\".",
6646 : RoutineName,
6647 : CurrentModuleObject,
6648 : cAlphaFieldNames(AlphaNum),
6649 : Alphas(AlphaNum)));
6650 0 : ErrorsFound = true;
6651 1 : } else if (ListNum != 0) {
6652 1 : NumCompressorsSys = CompressorLists(ListNum).NumCompressors;
6653 1 : TransSystem(TransRefrigSysNum).NumCompressorsHP = NumCompressorsSys;
6654 1 : if (!allocated(TransSystem(TransRefrigSysNum).CompressorNumHP)) {
6655 1 : TransSystem(TransRefrigSysNum).CompressorNumHP.allocate(NumCompressorsSys);
6656 : }
6657 2 : TransSystem(TransRefrigSysNum).CompressorNumHP({1, NumCompressorsSys}) =
6658 3 : CompressorLists(ListNum).CompItemNum({1, NumCompressorsSys});
6659 0 : } else if (CompNum != 0) {
6660 0 : NumCompressorsSys = 1;
6661 0 : TransSystem(TransRefrigSysNum).NumCompressorsHP = 1;
6662 0 : if (!allocated(TransSystem(TransRefrigSysNum).CompressorNumHP)) {
6663 0 : TransSystem(TransRefrigSysNum).CompressorNumHP.allocate(NumCompressorsSys);
6664 : }
6665 0 : TransSystem(TransRefrigSysNum).CompressorNumHP(NumCompressorsSys) = CompNum;
6666 : }
6667 : // Sum rated capacity of all HP compressors on system
6668 1 : NominalTotalCompCapHP = 0.0;
6669 4 : for (int CompIndex = 1; CompIndex <= NumCompressorsSys; ++CompIndex) {
6670 3 : CompNum = TransSystem(TransRefrigSysNum).CompressorNumHP(CompIndex);
6671 :
6672 3 : if (Compressor(CompNum).TransFlag) { // Calculate nominal capacity of transcritical Compressor
6673 3 : Real64 GCOutletH = TransSystem(TransRefrigSysNum)
6674 12 : .refrig->getSupHeatEnthalpy(state,
6675 3 : GasCooler(TransSystem(TransRefrigSysNum).GasCoolerNum(1)).RatedOutletT,
6676 3 : GasCooler(TransSystem(TransRefrigSysNum).GasCoolerNum(1)).RatedOutletP,
6677 : routineName);
6678 3 : Compressor(CompNum).NomCap = Curve::CurveValue(
6679 3 : state, Compressor(CompNum).TransCapacityCurvePtr, TransSystem(TransRefrigSysNum).TEvapDesignMT, GCOutletH);
6680 3 : NominalTotalCompCapHP += Compressor(CompNum).NomCap;
6681 3 : ++Compressor(CompNum).NumSysAttach;
6682 : } else { // Subcritical compressor attached to transcritical system - show error
6683 0 : ShowSevereError(
6684 : state,
6685 0 : format("{}{}, No transcritical CO2 compressors are attached to the transcritical refrigeration system, \"{}\".",
6686 : RoutineName,
6687 : CurrentModuleObject,
6688 0 : TransSystem(TransRefrigSysNum).Name));
6689 0 : ErrorsFound = true;
6690 : }
6691 : }
6692 : }
6693 :
6694 : // Read Low Pressure Compressor
6695 1 : AlphaNum = 7;
6696 1 : NumCompressorsSys = 0;
6697 :
6698 1 : if ((lAlphaBlanks(AlphaNum)) && (TransSystem(TransRefrigSysNum).transSysType == TransSysType::TwoStage)) {
6699 : // TwoStage system type is specified but low pressure compressor input is blank
6700 0 : ShowSevereError(state,
6701 0 : format("{}{}, The transcritical refrigeration system, \"{}\", is specified to be \"TwoStage\", "
6702 : "however, the \"{}\" is not given.",
6703 : RoutineName,
6704 : CurrentModuleObject,
6705 0 : TransSystem(TransRefrigSysNum).Name,
6706 : cAlphaFieldNames(AlphaNum)));
6707 0 : ErrorsFound = true;
6708 1 : } else if ((!(lAlphaBlanks(AlphaNum))) && (TransSystem(TransRefrigSysNum).transSysType == TransSysType::SingleStage)) {
6709 : // SingleStage system type with low pressure compressors specified. Ignore low pressure compressors
6710 0 : ShowWarningError(state,
6711 0 : format("{}{}, The transcritical refrigeration system, \"{}\", is specified to be \"SingleStage\", "
6712 : "however, a \"{}\" was found. The low pressure compressors will be ignored and will not simulated.",
6713 : RoutineName,
6714 : CurrentModuleObject,
6715 0 : TransSystem(TransRefrigSysNum).Name,
6716 : cAlphaFieldNames(AlphaNum)));
6717 1 : } else if ((!(lAlphaBlanks(AlphaNum))) && (TransSystem(TransRefrigSysNum).transSysType == TransSysType::TwoStage)) {
6718 : // TwoStage system with low pressure compressors specified
6719 1 : int ListNum = Util::FindItemInList(Alphas(AlphaNum), CompressorLists);
6720 1 : int CompNum = Util::FindItemInList(Alphas(AlphaNum), Compressor);
6721 1 : if ((ListNum == 0) && (CompNum == 0)) { // name doesn't match either a compressor or a compressor list
6722 0 : ShowSevereError(state,
6723 0 : format(R"({}{}, "{}", has an invalid or undefined value="{}".)",
6724 : RoutineName,
6725 : CurrentModuleObject,
6726 : cAlphaFieldNames(AlphaNum),
6727 : Alphas(AlphaNum)));
6728 0 : ErrorsFound = true;
6729 1 : } else if ((ListNum != 0) && (CompNum != 0)) { // have compressor list and compressor with same name
6730 0 : ShowSevereError(state,
6731 0 : format("{}{} {}, has a non-unique name used for both Compressor and CompressorList name: \"{}\".",
6732 : RoutineName,
6733 : CurrentModuleObject,
6734 : cAlphaFieldNames(AlphaNum),
6735 : Alphas(AlphaNum)));
6736 0 : ErrorsFound = true;
6737 1 : } else if (ListNum != 0) {
6738 1 : NumCompressorsSys = CompressorLists(ListNum).NumCompressors;
6739 1 : TransSystem(TransRefrigSysNum).NumCompressorsLP = NumCompressorsSys;
6740 1 : if (!allocated(TransSystem(TransRefrigSysNum).CompressorNumLP)) {
6741 1 : TransSystem(TransRefrigSysNum).CompressorNumLP.allocate(NumCompressorsSys);
6742 : }
6743 2 : TransSystem(TransRefrigSysNum).CompressorNumLP({1, NumCompressorsSys}) =
6744 3 : CompressorLists(ListNum).CompItemNum({1, NumCompressorsSys});
6745 0 : } else if (CompNum != 0) {
6746 0 : NumCompressorsSys = 1;
6747 0 : TransSystem(TransRefrigSysNum).NumCompressorsLP = 1;
6748 0 : if (!allocated(TransSystem(TransRefrigSysNum).CompressorNumLP)) {
6749 0 : TransSystem(TransRefrigSysNum).CompressorNumLP.allocate(NumCompressorsSys);
6750 : }
6751 0 : TransSystem(TransRefrigSysNum).CompressorNumLP(NumCompressorsSys) = CompNum;
6752 : }
6753 : // Sum rated capacity of all LP compressors on system
6754 1 : NominalTotalCompCapLP = 0.0;
6755 4 : for (int CompIndex = 1; CompIndex <= NumCompressorsSys; ++CompIndex) {
6756 3 : CompNum = TransSystem(TransRefrigSysNum).CompressorNumLP(CompIndex);
6757 3 : if (TransSystem(TransRefrigSysNum).transSysType == TransSysType::TwoStage) { // Calculate capacity of LP compressors
6758 3 : Compressor(CompNum).NomCap = Curve::CurveValue(state,
6759 3 : Compressor(CompNum).CapacityCurvePtr,
6760 3 : TransSystem(TransRefrigSysNum).TEvapDesignLT,
6761 3 : TransSystem(TransRefrigSysNum).TEvapDesignMT);
6762 3 : NominalTotalCompCapLP += Compressor(CompNum).NomCap;
6763 3 : ++Compressor(CompNum).NumSysAttach;
6764 : }
6765 : }
6766 : }
6767 :
6768 : // Read Receiver Pressure
6769 1 : if (!lNumericBlanks(1)) {
6770 1 : TransSystem(TransRefrigSysNum).PReceiver = Numbers(1);
6771 : } else { // Default value receiver pressure = 4000000 Pa
6772 0 : TransSystem(TransRefrigSysNum).PReceiver = 4.0e6;
6773 : }
6774 :
6775 : // Check receiver temperature against minimum condensing temperature (from gas cooler input) and design evaporator temperatures
6776 2 : TransSystem(TransRefrigSysNum).TReceiver =
6777 1 : TransSystem(TransRefrigSysNum).refrig->getSatTemperature(state, TransSystem(TransRefrigSysNum).PReceiver, routineName);
6778 1 : if (TransSystem(TransRefrigSysNum).TReceiver > GasCooler(TransSystem(TransRefrigSysNum).GasCoolerNum(NumGasCoolers)).MinCondTemp) {
6779 0 : ShowWarningError(state,
6780 0 : format("{}{}=\"{}: The receiver temperature ({:.2R}C) is greater than the minimum condensing temperature "
6781 : "specified for subcritical operation ({:.2R}C).",
6782 : RoutineName,
6783 : CurrentModuleObject,
6784 0 : TransSystem(TransRefrigSysNum).Name,
6785 0 : TransSystem(TransRefrigSysNum).TReceiver,
6786 0 : GasCooler(TransSystem(TransRefrigSysNum).GasCoolerNum(NumGasCoolers)).MinCondTemp));
6787 0 : ShowContinueError(state, " The minimum condensing temperature will be set at 5C greater than the receiver temperature.");
6788 0 : GasCooler(TransSystem(TransRefrigSysNum).GasCoolerNum(NumGasCoolers)).MinCondTemp = TransSystem(TransRefrigSysNum).TReceiver + 5.0;
6789 : }
6790 1 : if (NominalTotalCompCapLP > 0.0) {
6791 1 : if (TransSystem(TransRefrigSysNum).TReceiver <= TransSystem(TransRefrigSysNum).TEvapDesignLT) {
6792 0 : ShowSevereError(state,
6793 0 : format("{}{}=\"{}: The receiver temperature ({:.2R}C) is less than the design evaporator temperature for the "
6794 : "low temperature loads ({:.2R}C).",
6795 : RoutineName,
6796 : CurrentModuleObject,
6797 0 : TransSystem(TransRefrigSysNum).Name,
6798 0 : TransSystem(TransRefrigSysNum).TReceiver,
6799 0 : TransSystem(TransRefrigSysNum).TEvapDesignLT));
6800 0 : ShowContinueError(state,
6801 : " Ensure that the receiver temperature is sufficiently greater than the design evaporator temperature for "
6802 : "the low temperature loads.");
6803 0 : ShowContinueError(state,
6804 : " A receiver pressure between 3.0 MPa to 4.0 MPa will typically result in an adequate receiver temperature.");
6805 0 : ErrorsFound = true;
6806 : }
6807 : }
6808 1 : if (NominalTotalCompCapHP > 0.0) {
6809 1 : if (TransSystem(TransRefrigSysNum).TReceiver <= TransSystem(TransRefrigSysNum).TEvapDesignMT) {
6810 0 : ShowSevereError(state,
6811 0 : format("{}{}=\"{}: The receiver temperature ({:.2R}C) is less than the design evaporator temperature for the "
6812 : "medium temperature loads ({:.2R}C).",
6813 : RoutineName,
6814 : CurrentModuleObject,
6815 0 : TransSystem(TransRefrigSysNum).Name,
6816 0 : TransSystem(TransRefrigSysNum).TReceiver,
6817 0 : TransSystem(TransRefrigSysNum).TEvapDesignMT));
6818 0 : ShowContinueError(state,
6819 : " Ensure that the receiver temperature is sufficiently greater than the design evaporator temperature for "
6820 : "the medium temperature loads.");
6821 0 : ShowContinueError(state,
6822 : " A receiver pressure between 3.0 MPa to 4.0 MPa will typically result in an adequate receiver temperature.");
6823 0 : ErrorsFound = true;
6824 : }
6825 : }
6826 :
6827 : // Read subcooler effectiveness
6828 1 : if (!lNumericBlanks(2)) {
6829 1 : TransSystem(TransRefrigSysNum).SCEffectiveness = Numbers(2);
6830 : } else { // Default value effectiveness = 0.4
6831 0 : TransSystem(TransRefrigSysNum).PReceiver = 0.4;
6832 : }
6833 : // Check subcooler effectiveness value, must be value between 0 and 1
6834 1 : if ((TransSystem(TransRefrigSysNum).SCEffectiveness < 0) || (TransSystem(TransRefrigSysNum).SCEffectiveness > 1)) {
6835 0 : ShowSevereError(state,
6836 0 : format("{}{}=\"{}: The value for subcooler effectiveness is invalid. The subcooler effectiveness must be a value "
6837 : "greater than or equal to zero and less than or equal to one.",
6838 : RoutineName,
6839 : CurrentModuleObject,
6840 0 : TransSystem(TransRefrigSysNum).Name));
6841 0 : ErrorsFound = true;
6842 : }
6843 :
6844 : // Suction piping heat gain - optional
6845 : // Input UA and identify the Zone containing the bulk of the suction piping
6846 : // This Zone ID will be used to determine the temperature used for suction piping heat gain.
6847 : // The pipe heat gains are also counted as cooling credit for the zone.
6848 : // Zone Id is only required if Sum UA Suction Piping >0.0
6849 : // Get the Zone and zone node numbers from the zone name entered by the user
6850 1 : AlphaNum = 9; // Medium temperature suction piping
6851 1 : TransSystem(TransRefrigSysNum).SumUASuctionPipingMT = 0.0;
6852 1 : if (!lNumericBlanks(3) && !lAlphaBlanks(AlphaNum)) {
6853 0 : TransSystem(TransRefrigSysNum).SumUASuctionPipingMT = Numbers(3);
6854 0 : TransSystem(TransRefrigSysNum).SuctionPipeActualZoneNumMT = Util::FindItemInList(Alphas(AlphaNum), state.dataHeatBal->Zone);
6855 0 : TransSystem(TransRefrigSysNum).SuctionPipeZoneNodeNumMT =
6856 0 : DataZoneEquipment::GetSystemNodeNumberForZone(state, TransSystem(TransRefrigSysNum).SuctionPipeActualZoneNumMT);
6857 0 : if (TransSystem(TransRefrigSysNum).SuctionPipeZoneNodeNumMT == 0) {
6858 0 : ShowSevereError(state,
6859 0 : format(R"({}{}="{}", System Node Number not found for {} = "{}" even though {} is greater than zero.)",
6860 : RoutineName,
6861 : CurrentModuleObject,
6862 0 : TransSystem(TransRefrigSysNum).Name,
6863 : cAlphaFieldNames(AlphaNum),
6864 : Alphas(AlphaNum),
6865 : cNumericFieldNames(3)));
6866 0 : ShowContinueError(state,
6867 : " The medium temperature suction piping heat gain cannot be calculated unless a Zone is defined to "
6868 : "determine the environmental temperature surrounding the piping.");
6869 0 : ErrorsFound = true;
6870 : } else {
6871 0 : state.dataRefrigCase->RefrigPresentInZone(TransSystem(TransRefrigSysNum).SuctionPipeActualZoneNumMT) = true;
6872 : }
6873 1 : } else if (!lNumericBlanks(3) && lAlphaBlanks(AlphaNum)) {
6874 0 : ShowWarningError(state,
6875 0 : format("{}{}=\"{}\" {} not found even though {} is greater than zero.",
6876 : RoutineName,
6877 : CurrentModuleObject,
6878 0 : TransSystem(TransRefrigSysNum).Name,
6879 : cAlphaFieldNames(AlphaNum),
6880 : cNumericFieldNames(3)));
6881 0 : ShowContinueError(state,
6882 : " The medium temperature suction piping heat gain will not be calculated unless a Zone is defined to "
6883 : "determine the environmental temperature surrounding the piping.");
6884 1 : } else if (lNumericBlanks(3) && !lAlphaBlanks(AlphaNum)) {
6885 0 : ShowWarningError(state,
6886 0 : format("{}{}=\"{}\" {} will not be used and suction piping heat gain will not be calculated because {} was blank.",
6887 : RoutineName,
6888 : CurrentModuleObject,
6889 0 : TransSystem(TransRefrigSysNum).Name,
6890 : cAlphaFieldNames(AlphaNum),
6891 : cNumericFieldNames(3)));
6892 : } // Medium temperature suction piping heat gains
6893 :
6894 1 : AlphaNum = 10; // Low temperature suction piping
6895 1 : TransSystem(TransRefrigSysNum).SumUASuctionPipingLT = 0.0;
6896 1 : if (!lNumericBlanks(4) && !lAlphaBlanks(AlphaNum)) {
6897 0 : TransSystem(TransRefrigSysNum).SumUASuctionPipingLT = Numbers(4);
6898 0 : TransSystem(TransRefrigSysNum).SuctionPipeActualZoneNumLT = Util::FindItemInList(Alphas(AlphaNum), state.dataHeatBal->Zone);
6899 0 : TransSystem(TransRefrigSysNum).SuctionPipeZoneNodeNumLT =
6900 0 : DataZoneEquipment::GetSystemNodeNumberForZone(state, TransSystem(TransRefrigSysNum).SuctionPipeActualZoneNumLT);
6901 0 : if (TransSystem(TransRefrigSysNum).SuctionPipeZoneNodeNumLT == 0) {
6902 0 : ShowSevereError(state,
6903 0 : format(R"({}{}="{}", System Node Number not found for {} = "{}" even though {} is greater than zero.)",
6904 : RoutineName,
6905 : CurrentModuleObject,
6906 0 : TransSystem(TransRefrigSysNum).Name,
6907 : cAlphaFieldNames(AlphaNum),
6908 : Alphas(AlphaNum),
6909 : cNumericFieldNames(4)));
6910 0 : ShowContinueError(state,
6911 : " The low temperature suction piping heat gain cannot be calculated unless a Zone is defined to "
6912 : "determine the environmental temperature surrounding the piping.");
6913 0 : ErrorsFound = true;
6914 : } else {
6915 0 : state.dataRefrigCase->RefrigPresentInZone(TransSystem(TransRefrigSysNum).SuctionPipeActualZoneNumLT) = true;
6916 : }
6917 1 : } else if (!lNumericBlanks(4) && lAlphaBlanks(AlphaNum)) {
6918 0 : ShowWarningError(state,
6919 0 : format("{}{}=\"{}\" {} not found even though {} is greater than zero.",
6920 : RoutineName,
6921 : CurrentModuleObject,
6922 0 : TransSystem(TransRefrigSysNum).Name,
6923 : cAlphaFieldNames(AlphaNum),
6924 : cNumericFieldNames(4)));
6925 0 : ShowContinueError(state,
6926 : " The low temperature suction piping heat gain will not be calculated unless a Zone is defined to determine "
6927 : "the environmental temperature surrounding the piping.");
6928 1 : } else if (lNumericBlanks(4) && !lAlphaBlanks(AlphaNum)) {
6929 0 : ShowWarningError(state,
6930 0 : format("{}{}=\"{}\" {} will not be used and suction piping heat gain will not be calculated because {} was blank.",
6931 : RoutineName,
6932 : CurrentModuleObject,
6933 0 : TransSystem(TransRefrigSysNum).Name,
6934 : cAlphaFieldNames(AlphaNum),
6935 : cNumericFieldNames(4)));
6936 : } // Low temperature suction piping heat gains
6937 :
6938 1 : AlphaNum = 11;
6939 1 : if (!lAlphaBlanks(AlphaNum)) {
6940 1 : TransSystem(TransRefrigSysNum).EndUseSubcategory = Alphas(AlphaNum);
6941 : }
6942 :
6943 : // Compare the rated capacity of compressor, condenser, and cases.
6944 : // Note, rated capacities can be far off from operating capacities, but rough check.
6945 1 : Real64 NominalCondCap = GasCooler(TransSystem(TransRefrigSysNum).GasCoolerNum(1)).RatedCapacity;
6946 1 : Real64 NominalTotalCompCap = NominalTotalCompCapHP + NominalTotalCompCapLP;
6947 1 : if ((NominalTotalCompCap < (0.7 * NominalTotalCoolingCap)) || (NominalCondCap < (1.3 * NominalTotalCoolingCap))) {
6948 0 : ShowWarningError(
6949 0 : state, format("{}=\"{}\", You may wish to check the system sizing.", CurrentModuleObject, TransSystem(TransRefrigSysNum).Name));
6950 0 : ShowContinueError(
6951 : state,
6952 0 : format("Total nominal cooling capacity is {:.0R}W. Condenser capacity is {:.0R}W. Nominal compressor capacity is {:.0R}W.",
6953 : NominalTotalCoolingCap,
6954 : NominalCondCap,
6955 : NominalTotalCompCap));
6956 : }
6957 :
6958 : } // Transcritical refrigeration systems
6959 :
6960 : } //(NumTransRefrigSystems > 0)
6961 :
6962 801 : DayValues.deallocate();
6963 801 : Alphas.deallocate();
6964 801 : Numbers.deallocate();
6965 801 : cAlphaFieldNames.deallocate();
6966 801 : cNumericFieldNames.deallocate();
6967 801 : lAlphaBlanks.deallocate();
6968 801 : lNumericBlanks.deallocate();
6969 :
6970 801 : if (state.dataRefrigCase->NumSimulationCases > 0) {
6971 : // Find unused and non-unique display case objects to report in eio and err file and sum
6972 : // all HVAC RA fractions and write error message if greater than 1 for any zone
6973 881 : for (int ZoneIndex = 1; ZoneIndex <= state.dataGlobal->NumOfZones; ++ZoneIndex) { // numofzones from dataglobals
6974 844 : Real64 TempRAFraction = CaseRAFraction(ZoneIndex).TotalCaseRAFraction;
6975 3568 : for (int CaseNum = 1; CaseNum <= state.dataRefrigCase->NumSimulationCases; ++CaseNum) {
6976 : // TempRaFraction already includes contributions from ALL cases in zone
6977 : // Want to delete portion from unused cases (numsysattach = 0)that will never be simulated
6978 2724 : if (RefrigCase(CaseNum).ActualZoneNum != ZoneIndex || RefrigCase(CaseNum).NumSysAttach > 0) {
6979 2724 : continue;
6980 : }
6981 0 : TempRAFraction -= RefrigCase(CaseNum).RAFrac;
6982 : } // NumSimulationCases
6983 844 : if (TempRAFraction > 1.0) {
6984 0 : ShowSevereError(
6985 : state,
6986 0 : format("{}: Refrigeration:Case, Refrigerated case return air fraction for all cases in zone=\"{}\" is greater than 1.0.",
6987 : RoutineName,
6988 0 : CaseRAFraction(ZoneIndex).ZoneName));
6989 : // check in comment, can't use "currentModuleObject" because not in get input subroutine where that is known
6990 0 : ErrorsFound = true;
6991 : }
6992 : } // ZoneIndex=1,DataGlobals::NumOfZones
6993 :
6994 37 : CaseRAFraction.deallocate(); // only used for input check just completed
6995 : // check for cases not connected to systems and cases connected
6996 : // more than once (twice in a system or to more than one system)
6997 :
6998 37 : state.dataRefrigCase->NumUnusedRefrigCases = 0;
6999 227 : for (int CaseNum = 1; CaseNum <= state.dataRefrigCase->NumSimulationCases; ++CaseNum) {
7000 190 : if (RefrigCase(CaseNum).NumSysAttach == 1) {
7001 190 : continue;
7002 : }
7003 0 : if (RefrigCase(CaseNum).NumSysAttach < 1) {
7004 0 : ++state.dataRefrigCase->NumUnusedRefrigCases;
7005 0 : if (state.dataGlobal->DisplayExtraWarnings) {
7006 : // individual case names listed if DataGlobals::DisplayExtraWarnings option selected
7007 0 : ShowWarningError(state, format("{}: Refrigeration:Case=\"{}\" unused. ", RoutineName, RefrigCase(CaseNum).Name));
7008 : } // display extra warnings - give a list of unused cases
7009 : } // unused case
7010 0 : if (RefrigCase(CaseNum).NumSysAttach > 1) {
7011 0 : ErrorsFound = true;
7012 0 : ShowSevereError(
7013 0 : state, format("{}: Refrigeration:Case=\"{}\", Same refrigerated case name referenced ", RoutineName, RefrigCase(CaseNum).Name));
7014 0 : ShowContinueError(state, " by more than one refrigeration system and/or compressor rack.");
7015 : } // if looking for same case attached to multiple systems/racks
7016 : } // NumSimulationCases
7017 :
7018 37 : if ((state.dataRefrigCase->NumUnusedRefrigCases > 0) && (!state.dataGlobal->DisplayExtraWarnings)) {
7019 : // write to error file,
7020 : // summary number of unused cases given if DataGlobals::DisplayExtraWarnings option not selected
7021 0 : ShowWarningError(state,
7022 0 : format("Refrigeration:Case -> {} unused refrigerated case(s) found during input processing.",
7023 0 : state.dataRefrigCase->NumUnusedRefrigCases));
7024 0 : ShowContinueError(state, " These refrigerated cases are in the input file but are not connected to a ");
7025 0 : ShowContinueError(state, " Refrigeration:CompressorRack, Refrigeration:System, or Refrigeration:SecondarySystem object.");
7026 0 : ShowContinueError(state, " These unused refrigeration cases will not be simulated.");
7027 0 : ShowContinueError(state, " Use Output:Diagnostics,DisplayUnusedObjects; to see them. ");
7028 : } // NumUnusedRefrigCases
7029 : } // numsimulation cases > 0
7030 :
7031 801 : if (state.dataRefrigCase->NumSimulationCompressors > 0) {
7032 : // check for compressors not connected to systems and compressors connected more than once
7033 : // (twice in a system or to more than one system)
7034 16 : state.dataRefrigCase->NumUnusedCompressors = 0;
7035 198 : for (int CompNum = 1; CompNum <= state.dataRefrigCase->NumSimulationCompressors; ++CompNum) {
7036 182 : if (Compressor(CompNum).NumSysAttach == 1) {
7037 182 : continue;
7038 : }
7039 0 : if (Compressor(CompNum).NumSysAttach < 1) {
7040 0 : ++state.dataRefrigCase->NumUnusedCompressors;
7041 0 : if (state.dataGlobal->DisplayExtraWarnings) {
7042 : // individual compressor names listed if DataGlobals::DisplayExtraWarnings option selected
7043 0 : ShowWarningError(state, format("{}: Refrigeration:Compressor=\"{}\" unused. ", RoutineName, Compressor(CompNum).Name));
7044 : } // display extra warnings - give a list of unused compressors
7045 : } // unused compressor
7046 0 : if (Compressor(CompNum).NumSysAttach > 1) {
7047 0 : ErrorsFound = true;
7048 0 : ShowSevereError(state,
7049 0 : format("{}: Refrigeration:Compressor=\"{}\", Same refrigeration compressor name referenced",
7050 : RoutineName,
7051 0 : Compressor(CompNum).Name));
7052 0 : ShowContinueError(state, " by more than one refrigeration system.");
7053 : } // looking for same compressor attached to multiple systems/racks
7054 : } // NumSimulationCompressors
7055 :
7056 16 : if ((state.dataRefrigCase->NumUnusedCompressors > 0) && (!state.dataGlobal->DisplayExtraWarnings)) {
7057 : // write to error file,
7058 : // summary number of unused compressors given if DataGlobals::DisplayExtraWarnings option not selected
7059 0 : ShowWarningError(state,
7060 0 : format("Refrigeration:Compressor -> {} unused refrigeration compressor(s) found during input processing.",
7061 0 : state.dataRefrigCase->NumUnusedCompressors));
7062 0 : ShowContinueError(state,
7063 : " Those refrigeration compressors are in the input file but are not connected to a Refrigeration:System object.");
7064 0 : ShowContinueError(state, " These unused refrigeration compressors will not be simulated.");
7065 0 : ShowContinueError(state, " Use Output:Diagnostics,DisplayUnusedObjects; to see them. ");
7066 : } // NumUnusedCompressors
7067 : } // NumSimulationCompressors > 0
7068 :
7069 801 : int NumUnusedWalkIns = 0;
7070 801 : if (state.dataRefrigCase->NumSimulationWalkIns > 0) {
7071 : // check for refrigeration WalkIns not connected to any systems and
7072 : // refrigeration WalkIns connected more than once
7073 31 : for (int WalkInNum = 1; WalkInNum <= state.dataRefrigCase->NumSimulationWalkIns; ++WalkInNum) {
7074 17 : if (WalkIn(WalkInNum).NumSysAttach == 1) {
7075 17 : continue;
7076 : }
7077 0 : if (WalkIn(WalkInNum).NumSysAttach < 1) {
7078 0 : ++NumUnusedWalkIns;
7079 0 : if (state.dataGlobal->DisplayExtraWarnings) {
7080 : // individual walkin names listed if DataGlobals::DisplayExtraWarnings option selected
7081 0 : ShowWarningError(state, format("{}: Refrigeration:WalkIn=\"{}\" unused. ", RoutineName, WalkIn(WalkInNum).Name));
7082 : } // display extra warnings - give a list of unused WalkIns
7083 : } // unused walkin
7084 0 : if (WalkIn(WalkInNum).NumSysAttach > 1) {
7085 0 : ErrorsFound = true;
7086 0 : ShowSevereError(
7087 0 : state, format("{}: Refrigeration:WalkIn=\"{}\", Same Refrigeration WalkIn name referenced", RoutineName, WalkIn(WalkInNum).Name));
7088 0 : ShowContinueError(state, " by more than one refrigeration system and/or compressor rack.");
7089 : } // if looking for same walk in attached to multiple systems/racks
7090 : } // NumSimulationWalkIns
7091 :
7092 14 : if ((NumUnusedWalkIns > 0) && (!state.dataGlobal->DisplayExtraWarnings)) {
7093 : // write to error file,
7094 : // summary number of unused walkins given if DataGlobals::DisplayExtraWarnings option not selected
7095 0 : ShowWarningError(
7096 : state,
7097 0 : format("{}Refrigeration:WalkIn -> {} unused refrigeration WalkIns found during input processing.", RoutineName, NumUnusedWalkIns));
7098 0 : ShowContinueError(state, " Those refrigeration WalkIns are in the input file but are not connected to a ");
7099 0 : ShowContinueError(state, " Refrigeration:CompressorRack, Refrigeration:System or Refrigeration:SecondarySystem object.");
7100 0 : ShowContinueError(state, " These unused refrigeration WalkIns will not be simulated.");
7101 0 : ShowContinueError(state, " Use Output:Diagnostics,DisplayUnusedObjects; to see them. ");
7102 : } // NumUnusedWalkIns
7103 : } // NumSimulationWalkIns > 0
7104 :
7105 801 : if (state.dataRefrigCase->NumSimulationRefrigAirChillers > 0) {
7106 : // check for air chillers not connected to any systems and
7107 : // air chillers connected more than once
7108 1 : state.dataRefrigCase->NumUnusedCoils = 0;
7109 84 : for (int CoilNum = 1; CoilNum <= state.dataRefrigCase->NumSimulationRefrigAirChillers; ++CoilNum) {
7110 83 : if (WarehouseCoil(CoilNum).NumSysAttach == 1) {
7111 83 : continue;
7112 : }
7113 0 : if (WarehouseCoil(CoilNum).NumSysAttach < 1) {
7114 0 : ++NumUnusedWalkIns;
7115 0 : if (state.dataGlobal->DisplayExtraWarnings) {
7116 : // individual walkin names listed if DataGlobals::DisplayExtraWarnings option selected
7117 0 : ShowWarningError(state, format("{}: Refrigeration:AirChiller=\"{}\" unused. ", RoutineName, WarehouseCoil(CoilNum).Name));
7118 : } // display extra warnings - give a list of unused chillers
7119 : } // unused chiller
7120 0 : if (WarehouseCoil(CoilNum).NumSysAttach > 1) {
7121 0 : ErrorsFound = true;
7122 0 : ShowSevereError(state,
7123 0 : format("{}: Refrigeration:AirChiller=\"{}\", Same Refrigeration Air Chiller name referenced",
7124 : RoutineName,
7125 0 : WarehouseCoil(CoilNum).Name));
7126 0 : ShowContinueError(state, " by more than one refrigeration system and/or compressor rack.");
7127 : } // if looking for same walk in attached to multiple systems/racks
7128 : } // NumSimulationRefrigAirchillers
7129 :
7130 1 : if ((state.dataRefrigCase->NumUnusedCoils > 0) && (!state.dataGlobal->DisplayExtraWarnings)) {
7131 : // write to error file,
7132 : // summary number of unused air chillers given if DataGlobals::DisplayExtraWarnings option not selected
7133 0 : ShowWarningError(state,
7134 0 : format("{}Refrigeration:AirChiller -> {} unused refrigeration air chillers found during input processing.",
7135 : RoutineName,
7136 0 : state.dataRefrigCase->NumUnusedCoils));
7137 0 : ShowContinueError(state, " Those refrigeration air chillers are in the input file but are not connected to a ");
7138 0 : ShowContinueError(state, " Refrigeration:CompressorRack, Refrigeration:System or Refrigeration:SecondarySystem object.");
7139 0 : ShowContinueError(state, " These unused refrigeration air chillers will not be simulated.");
7140 0 : ShowContinueError(state, " Use Output:Diagnostics,DisplayUnusedObjects; to see them. ");
7141 : } // NumUnusedAirChllerss
7142 : } // NumSimulationAirChillers > 0
7143 :
7144 801 : if (state.dataRefrigCase->NumSimulationSecondarySystems > 0) {
7145 : // check for refrigeration Secondarys not connected to detailed systems and
7146 : // refrigeration Secondarys connected more than once
7147 1 : state.dataRefrigCase->NumUnusedSecondarys = 0;
7148 3 : for (int SecondaryNum = 1; SecondaryNum <= state.dataRefrigCase->NumSimulationSecondarySystems; ++SecondaryNum) {
7149 2 : if (Secondary(SecondaryNum).NumSysAttach == 1) {
7150 2 : continue;
7151 : }
7152 0 : if (Secondary(SecondaryNum).NumSysAttach < 1) {
7153 0 : ++state.dataRefrigCase->NumUnusedSecondarys;
7154 0 : if (state.dataGlobal->DisplayExtraWarnings) {
7155 : // individual secondary names listed if DataGlobals::DisplayExtraWarnings option selected
7156 0 : ShowWarningError(state, format("{}: Refrigeration:Secondary=\"{}\" unused. ", RoutineName, Secondary(SecondaryNum).Name));
7157 : } // display extra warnings - give a list of unused Secondaries
7158 : } // unused secondary
7159 0 : if (Secondary(SecondaryNum).NumSysAttach > 1) {
7160 0 : ErrorsFound = true;
7161 0 : ShowSevereError(state,
7162 0 : format("{}: Refrigeration:Secondary=\"{}\", Same Refrigeration Secondary name referenced",
7163 : RoutineName,
7164 0 : Secondary(SecondaryNum).Name));
7165 0 : ShowContinueError(state, " by more than one refrigeration system");
7166 : } // looking for same secondary loop attached to multiple systems/racks
7167 : } // NumSimulationSecondarys
7168 :
7169 1 : if ((state.dataRefrigCase->NumUnusedSecondarys > 0) && (!state.dataGlobal->DisplayExtraWarnings)) {
7170 : // write to error file,
7171 : // summary number of unused secondaries given if DataGlobals::DisplayExtraWarnings option not selected
7172 0 : ShowWarningError(state,
7173 0 : format("{}Refrigeration:Secondary -> {} unused refrigeration Secondary Loops found during input processing.",
7174 : RoutineName,
7175 0 : state.dataRefrigCase->NumUnusedSecondarys));
7176 0 : ShowContinueError(state, " Those refrigeration Secondary Loops are in the input file but are not connected to a refrigeration system.");
7177 0 : ShowContinueError(state, " These unused refrigeration secondaries will not be simulated.");
7178 0 : ShowContinueError(state, " Use Output:Diagnostics,DisplayUnusedObjects; to see them. ");
7179 : } // NumUnusedSecondarys
7180 : } // NumSimulationSecondarySystems > 0
7181 :
7182 801 : if (state.dataRefrigCase->NumRefrigCondensers > 0) {
7183 : // Check for presence of shared condensers and for unused condensers
7184 : // - determines number of loops through refrigeration simulation
7185 : // because of dependence of performance on total condenser load
7186 15 : state.dataRefrigCase->NumSimulationSharedCondensers = 0;
7187 15 : state.dataRefrigCase->NumUnusedCondensers = 0;
7188 54 : for (int CondNum = 1; CondNum <= state.dataRefrigCase->NumRefrigCondensers; ++CondNum) {
7189 39 : if (Condenser(CondNum).NumSysAttach == 1) {
7190 37 : continue;
7191 : }
7192 2 : if (Condenser(CondNum).NumSysAttach < 1) {
7193 0 : ++state.dataRefrigCase->NumUnusedCondensers;
7194 0 : if (state.dataGlobal->DisplayExtraWarnings) {
7195 : // individual condenser names listed if DataGlobals::DisplayExtraWarnings option selected
7196 0 : ShowWarningError(state, format("{}: Refrigeration:Condenser=\"{}\" unused. ", RoutineName, Condenser(CondNum).Name));
7197 : } // display extra warnings - give a list of unused condensers
7198 : } // unused condenser
7199 2 : if (Condenser(CondNum).NumSysAttach > 1) {
7200 2 : ++state.dataRefrigCase->NumSimulationSharedCondensers;
7201 : } // looking for shared condensers
7202 : } // CondNum
7203 :
7204 15 : if ((state.dataRefrigCase->NumUnusedCondensers > 0) && (!state.dataGlobal->DisplayExtraWarnings)) {
7205 : // write to error file,
7206 : // summary number of unused condensers given if DataGlobals::DisplayExtraWarnings option not selected
7207 0 : ShowWarningError(state,
7208 0 : format("{}Refrigeration condenser -> {} unused refrigeration condensers found during input processing.",
7209 : RoutineName,
7210 0 : state.dataRefrigCase->NumUnusedCondensers));
7211 0 : ShowContinueError(state, " Those refrigeration condensers are in the input file but are not connected to a refrigeration system.");
7212 0 : ShowContinueError(state, " These unused refrigeration condensers will not be simulated.");
7213 0 : ShowContinueError(state, " Use Output:Diagnostics,DisplayUnusedObjects; to see them. ");
7214 : } // NumUnusedCondensers and displayextra warnings
7215 : } // DataHeatBalance::NumRefrigCondensers > 0
7216 :
7217 801 : if (state.dataRefrigCase->NumSimulationGasCooler > 0) {
7218 : // Check for presence of shared gas coolers and for unused gas coolers
7219 1 : state.dataRefrigCase->NumSimulationSharedGasCoolers = 0;
7220 1 : state.dataRefrigCase->NumUnusedGasCoolers = 0;
7221 2 : for (int GCNum = 1; GCNum <= state.dataRefrigCase->NumSimulationGasCooler; ++GCNum) {
7222 1 : if (GasCooler(GCNum).NumSysAttach == 1) {
7223 1 : continue;
7224 : }
7225 0 : if (GasCooler(GCNum).NumSysAttach < 1) {
7226 0 : ++state.dataRefrigCase->NumUnusedGasCoolers;
7227 0 : if (state.dataGlobal->DisplayExtraWarnings) {
7228 : // individual gas cooler names listed if DataGlobals::DisplayExtraWarnings option selected
7229 0 : ShowWarningError(state, format("{}: Refrigeration:GasCooler=\"{}\" unused. ", RoutineName, GasCooler(GCNum).Name));
7230 : } // display extra warnings - give a list of unused gas coolers
7231 : } // unused gas cooler
7232 0 : if (GasCooler(GCNum).NumSysAttach > 1) {
7233 0 : ++state.dataRefrigCase->NumSimulationSharedGasCoolers;
7234 : } // looking for shared gas coolers
7235 : } // GCNum
7236 :
7237 1 : if ((state.dataRefrigCase->NumUnusedGasCoolers > 0) && (!state.dataGlobal->DisplayExtraWarnings)) {
7238 : // write to error file,
7239 : // summary number of unused gas coolers given if DataGlobals::DisplayExtraWarnings option not selected
7240 0 : ShowWarningError(state,
7241 0 : format("{}Refrigeration gas cooler -> {} unused refrigeration gas cooler(s) found during input processing.",
7242 : RoutineName,
7243 0 : state.dataRefrigCase->NumUnusedGasCoolers));
7244 0 : ShowContinueError(state, " These refrigeration gas coolers are in the input file but are not connected to a refrigeration system.");
7245 0 : ShowContinueError(state, " These unused refrigeration gas coolers will not be simulated.");
7246 0 : ShowContinueError(state, " Use Output:Diagnostics,DisplayUnusedObjects; to see them. ");
7247 : } // NumUnusedGasCoolers and displayextra warnings
7248 : } // NumSimulationGasCooler > 0
7249 :
7250 : // echo input to eio file.
7251 801 : ReportRefrigerationComponents(state);
7252 :
7253 801 : if (ErrorsFound) {
7254 0 : ShowFatalError(state, format("{} Previous errors cause program termination", RoutineName));
7255 : }
7256 801 : }
7257 :
7258 801 : void SetupReportInput(EnergyPlusData &state)
7259 : {
7260 : // SUBROUTINE INFORMATION:
7261 : // AUTHOR Richard Raustad, FSEC
7262 : // DATE WRITTEN Oct/Nov 2004
7263 : // MODIFIED Hudson, ORNL July 2007, Stovall, ORNL, 2008 and 09
7264 : // MODIFIED Fricke, ORNL, Fall 2011, added transcritical CO2 refrigeration system variables
7265 : // RE-ENGINEERED na
7266 :
7267 : // PURPOSE OF THIS SUBROUTINE:
7268 : // Set up the report variables.
7269 :
7270 801 : auto &RefrigCase = state.dataRefrigCase->RefrigCase;
7271 801 : auto &RefrigRack = state.dataRefrigCase->RefrigRack;
7272 801 : auto &System = state.dataRefrigCase->System;
7273 801 : auto &TransSystem = state.dataRefrigCase->TransSystem;
7274 801 : auto &Condenser = state.dataRefrigCase->Condenser;
7275 801 : auto &Compressor = state.dataRefrigCase->Compressor;
7276 801 : auto &GasCooler = state.dataRefrigCase->GasCooler;
7277 801 : auto &Subcooler = state.dataRefrigCase->Subcooler;
7278 801 : auto &Secondary = state.dataRefrigCase->Secondary;
7279 801 : auto &WalkIn = state.dataRefrigCase->WalkIn;
7280 801 : auto &WarehouseCoil = state.dataRefrigCase->WarehouseCoil;
7281 801 : auto &CoilSysCredit = state.dataRefrigCase->CoilSysCredit;
7282 801 : auto &CaseWIZoneReport = state.dataRefrigCase->CaseWIZoneReport;
7283 :
7284 801 : std::string Walkin_and_zone_name; // concat name for walk-in/zone credit reporting
7285 :
7286 801 : if (state.dataRefrigCase->NumSimulationCases > 0) {
7287 : // Setup Report Variables for simulated Refrigerated Case (do not report unused cases)
7288 : // CurrentModuleObject='Refrigeration:Case'
7289 227 : for (int caseNum = 1; caseNum <= state.dataRefrigCase->NumSimulationCases; ++caseNum) {
7290 190 : auto &thisCase = RefrigCase(caseNum);
7291 190 : if (thisCase.NumSysAttach == 1) {
7292 380 : SetupOutputVariable(state,
7293 : "Refrigeration Case Evaporator Total Cooling Rate",
7294 : Constant::Units::W,
7295 190 : thisCase.TotalCoolingLoad,
7296 : OutputProcessor::TimeStepType::Zone,
7297 : OutputProcessor::StoreType::Average,
7298 190 : thisCase.Name);
7299 380 : SetupOutputVariable(state,
7300 : "Refrigeration Case Evaporator Total Cooling Energy",
7301 : Constant::Units::J,
7302 190 : thisCase.TotalCoolingEnergy,
7303 : OutputProcessor::TimeStepType::Zone,
7304 : OutputProcessor::StoreType::Sum,
7305 190 : thisCase.Name,
7306 : Constant::eResource::EnergyTransfer,
7307 : OutputProcessor::Group::Building,
7308 : OutputProcessor::EndUseCat::Refrigeration,
7309 : "", // End-use sub category
7310 190 : thisCase.ZoneName);
7311 380 : SetupOutputVariable(state,
7312 : "Refrigeration Case Evaporator Sensible Cooling Rate",
7313 : Constant::Units::W,
7314 190 : thisCase.SensCoolingEnergyRate,
7315 : OutputProcessor::TimeStepType::Zone,
7316 : OutputProcessor::StoreType::Average,
7317 190 : thisCase.Name);
7318 380 : SetupOutputVariable(state,
7319 : "Refrigeration Case Evaporator Sensible Cooling Energy",
7320 : Constant::Units::J,
7321 190 : thisCase.SensCoolingEnergy,
7322 : OutputProcessor::TimeStepType::Zone,
7323 : OutputProcessor::StoreType::Sum,
7324 190 : thisCase.Name);
7325 380 : SetupOutputVariable(state,
7326 : "Refrigeration Case Evaporator Latent Cooling Rate",
7327 : Constant::Units::W,
7328 190 : thisCase.LatCoolingEnergyRate,
7329 : OutputProcessor::TimeStepType::Zone,
7330 : OutputProcessor::StoreType::Average,
7331 190 : thisCase.Name);
7332 380 : SetupOutputVariable(state,
7333 : "Refrigeration Case Evaporator Latent Cooling Energy",
7334 : Constant::Units::J,
7335 190 : thisCase.LatCoolingEnergy,
7336 : OutputProcessor::TimeStepType::Zone,
7337 : OutputProcessor::StoreType::Sum,
7338 190 : thisCase.Name);
7339 :
7340 380 : SetupOutputVariable(state,
7341 : "Refrigeration Case Zone Sensible Cooling Rate",
7342 : Constant::Units::W,
7343 190 : thisCase.SensZoneCreditCoolRate,
7344 : OutputProcessor::TimeStepType::Zone,
7345 : OutputProcessor::StoreType::Average,
7346 190 : thisCase.Name);
7347 380 : SetupOutputVariable(state,
7348 : "Refrigeration Case Zone Sensible Cooling Energy",
7349 : Constant::Units::J,
7350 190 : thisCase.SensZoneCreditCool,
7351 : OutputProcessor::TimeStepType::Zone,
7352 : OutputProcessor::StoreType::Sum,
7353 190 : thisCase.Name);
7354 380 : SetupOutputVariable(state,
7355 : "Refrigeration Case Zone Sensible Heating Rate",
7356 : Constant::Units::W,
7357 190 : thisCase.SensZoneCreditHeatRate,
7358 : OutputProcessor::TimeStepType::Zone,
7359 : OutputProcessor::StoreType::Average,
7360 190 : thisCase.Name);
7361 380 : SetupOutputVariable(state,
7362 : "Refrigeration Case Zone Sensible Heating Energy",
7363 : Constant::Units::J,
7364 190 : thisCase.SensZoneCreditHeat,
7365 : OutputProcessor::TimeStepType::Zone,
7366 : OutputProcessor::StoreType::Sum,
7367 190 : thisCase.Name);
7368 :
7369 380 : SetupOutputVariable(state,
7370 : "Refrigeration Case Zone Latent Rate",
7371 : Constant::Units::W,
7372 190 : thisCase.LatZoneCreditRate,
7373 : OutputProcessor::TimeStepType::Zone,
7374 : OutputProcessor::StoreType::Average,
7375 190 : thisCase.Name);
7376 380 : SetupOutputVariable(state,
7377 : "Refrigeration Case Zone Latent Energy",
7378 : Constant::Units::J,
7379 190 : thisCase.LatZoneCredit,
7380 : OutputProcessor::TimeStepType::Zone,
7381 : OutputProcessor::StoreType::Sum,
7382 190 : thisCase.Name);
7383 :
7384 380 : SetupOutputVariable(state,
7385 : "Refrigeration Case Return Air Sensible Cooling Rate",
7386 : Constant::Units::W,
7387 190 : thisCase.SensHVACCreditCoolRate,
7388 : OutputProcessor::TimeStepType::Zone,
7389 : OutputProcessor::StoreType::Average,
7390 190 : thisCase.Name);
7391 380 : SetupOutputVariable(state,
7392 : "Refrigeration Case Return Air Sensible Cooling Energy",
7393 : Constant::Units::J,
7394 190 : thisCase.SensHVACCreditCool,
7395 : OutputProcessor::TimeStepType::Zone,
7396 : OutputProcessor::StoreType::Sum,
7397 190 : thisCase.Name);
7398 380 : SetupOutputVariable(state,
7399 : "Refrigeration Case Return Air Sensible Heating Rate",
7400 : Constant::Units::W,
7401 190 : thisCase.SensHVACCreditHeatRate,
7402 : OutputProcessor::TimeStepType::Zone,
7403 : OutputProcessor::StoreType::Average,
7404 190 : thisCase.Name);
7405 380 : SetupOutputVariable(state,
7406 : "Refrigeration Case Return Air Sensible Heating Energy",
7407 : Constant::Units::J,
7408 190 : thisCase.SensHVACCreditHeat,
7409 : OutputProcessor::TimeStepType::Zone,
7410 : OutputProcessor::StoreType::Sum,
7411 190 : thisCase.Name);
7412 :
7413 380 : SetupOutputVariable(state,
7414 : "Refrigeration Case Return Air Latent Rate",
7415 : Constant::Units::W,
7416 190 : thisCase.LatHVACCreditRate,
7417 : OutputProcessor::TimeStepType::Zone,
7418 : OutputProcessor::StoreType::Average,
7419 190 : thisCase.Name);
7420 380 : SetupOutputVariable(state,
7421 : "Refrigeration Case Return Air Latent Energy",
7422 : Constant::Units::J,
7423 190 : thisCase.LatHVACCredit,
7424 : OutputProcessor::TimeStepType::Zone,
7425 : OutputProcessor::StoreType::Sum,
7426 190 : thisCase.Name);
7427 :
7428 380 : SetupOutputVariable(state,
7429 : "Refrigeration Case Evaporator Fan Electricity Rate",
7430 : Constant::Units::W,
7431 190 : thisCase.ElecFanPower,
7432 : OutputProcessor::TimeStepType::Zone,
7433 : OutputProcessor::StoreType::Average,
7434 190 : thisCase.Name);
7435 380 : SetupOutputVariable(state,
7436 : "Refrigeration Case Evaporator Fan Electricity Energy",
7437 : Constant::Units::J,
7438 190 : thisCase.ElecFanConsumption,
7439 : OutputProcessor::TimeStepType::Zone,
7440 : OutputProcessor::StoreType::Sum,
7441 190 : thisCase.Name,
7442 : Constant::eResource::Electricity,
7443 : OutputProcessor::Group::Building,
7444 : OutputProcessor::EndUseCat::Refrigeration,
7445 : "General",
7446 190 : thisCase.ZoneName);
7447 380 : SetupOutputVariable(state,
7448 : "Refrigeration Case Lighting Electricity Rate",
7449 : Constant::Units::W,
7450 190 : thisCase.ElecLightingPower,
7451 : OutputProcessor::TimeStepType::Zone,
7452 : OutputProcessor::StoreType::Average,
7453 190 : thisCase.Name);
7454 380 : SetupOutputVariable(state,
7455 : "Refrigeration Case Lighting Electricity Energy",
7456 : Constant::Units::J,
7457 190 : thisCase.ElecLightingConsumption,
7458 : OutputProcessor::TimeStepType::Zone,
7459 : OutputProcessor::StoreType::Sum,
7460 190 : thisCase.Name,
7461 : Constant::eResource::Electricity,
7462 : OutputProcessor::Group::Building,
7463 : OutputProcessor::EndUseCat::Refrigeration,
7464 : "General",
7465 190 : thisCase.ZoneName);
7466 :
7467 : // Report defrost energy curve value only for cases having electric or hot-gas defrost with temperature termination
7468 190 : if (thisCase.defrostType == RefCaseDefrostType::ElectricTerm || thisCase.defrostType == RefCaseDefrostType::HotFluidTerm) {
7469 116 : SetupOutputVariable(state,
7470 : "Refrigeration Case Defrost Energy Correction Curve Value",
7471 : Constant::Units::None,
7472 58 : thisCase.DefEnergyCurveValue,
7473 : OutputProcessor::TimeStepType::Zone,
7474 : OutputProcessor::StoreType::Average,
7475 58 : thisCase.Name);
7476 : }
7477 :
7478 380 : SetupOutputVariable(state,
7479 : "Refrigeration Case Latent Credit Curve Value",
7480 : Constant::Units::None,
7481 190 : thisCase.LatEnergyCurveValue,
7482 : OutputProcessor::TimeStepType::Zone,
7483 : OutputProcessor::StoreType::Average,
7484 190 : thisCase.Name);
7485 :
7486 : // Report only for cases having anti-sweat heaters
7487 190 : if (thisCase.AntiSweatControlType > ASHtrCtrlType::None) {
7488 158 : SetupOutputVariable(state,
7489 : "Refrigeration Case Anti Sweat Electricity Rate",
7490 : Constant::Units::W,
7491 79 : thisCase.ElecAntiSweatPower,
7492 : OutputProcessor::TimeStepType::Zone,
7493 : OutputProcessor::StoreType::Average,
7494 79 : thisCase.Name);
7495 158 : SetupOutputVariable(state,
7496 : "Refrigeration Case Anti Sweat Electricity Energy",
7497 : Constant::Units::J,
7498 79 : thisCase.ElecAntiSweatConsumption,
7499 : OutputProcessor::TimeStepType::Zone,
7500 : OutputProcessor::StoreType::Sum,
7501 79 : thisCase.Name,
7502 : Constant::eResource::Electricity,
7503 : OutputProcessor::Group::Building,
7504 : OutputProcessor::EndUseCat::Refrigeration,
7505 : "General",
7506 79 : thisCase.ZoneName);
7507 : }
7508 :
7509 : // Report only for cases using electric defrost
7510 :
7511 190 : if (thisCase.defrostType == RefCaseDefrostType::Electric || thisCase.defrostType == RefCaseDefrostType::ElectricOnDemand ||
7512 162 : thisCase.defrostType == RefCaseDefrostType::ElectricTerm) {
7513 92 : SetupOutputVariable(state,
7514 : "Refrigeration Case Defrost Electricity Rate",
7515 : Constant::Units::W,
7516 46 : thisCase.ElecDefrostPower,
7517 : OutputProcessor::TimeStepType::Zone,
7518 : OutputProcessor::StoreType::Average,
7519 46 : thisCase.Name);
7520 92 : SetupOutputVariable(state,
7521 : "Refrigeration Case Defrost Electricity Energy",
7522 : Constant::Units::J,
7523 46 : thisCase.ElecDefrostConsumption,
7524 : OutputProcessor::TimeStepType::Zone,
7525 : OutputProcessor::StoreType::Sum,
7526 46 : thisCase.Name,
7527 : Constant::eResource::Electricity,
7528 : OutputProcessor::Group::Building,
7529 : OutputProcessor::EndUseCat::Refrigeration,
7530 : "General",
7531 46 : thisCase.ZoneName);
7532 : }
7533 :
7534 : // register refrigeration case credits as internal gains
7535 190 : if (thisCase.ActualZoneNum > 0) {
7536 190 : SetupZoneInternalGain(state,
7537 : thisCase.ActualZoneNum,
7538 : thisCase.Name,
7539 : DataHeatBalance::IntGainType::RefrigerationCase,
7540 : &thisCase.SensZoneCreditRate,
7541 : &thisCase.SensHVACCreditRate,
7542 : nullptr,
7543 : &thisCase.LatZoneCreditRate,
7544 : &thisCase.LatHVACCreditRate,
7545 : nullptr,
7546 : nullptr,
7547 : thisCase.ZoneRANode);
7548 : }
7549 : } // END IF (.NOT. RefrigCase(CaseNum)%unusedCase)
7550 : }
7551 : } // NumSimulationCases > 0
7552 :
7553 801 : if (state.dataRefrigCase->NumSimulationWalkIns > 0) {
7554 : // Setup Report Variables for simulated Walk In (do not report unused WalkIns)
7555 : // CurrentModuleObject='Refrigeration:WalkIn'
7556 31 : for (int walkInNum = 1; walkInNum <= state.dataRefrigCase->NumSimulationWalkIns; ++walkInNum) {
7557 17 : auto &walkin = WalkIn(walkInNum);
7558 17 : if (walkin.NumSysAttach == 1) { // ensure no unuseds reported
7559 34 : SetupOutputVariable(state,
7560 : "Refrigeration Walk In Evaporator Total Cooling Rate",
7561 : Constant::Units::W,
7562 17 : walkin.TotalCoolingLoad,
7563 : OutputProcessor::TimeStepType::Zone,
7564 : OutputProcessor::StoreType::Average,
7565 17 : walkin.Name);
7566 34 : SetupOutputVariable(state,
7567 : "Refrigeration Walk In Evaporator Total Cooling Energy",
7568 : Constant::Units::J,
7569 17 : walkin.TotalCoolingEnergy,
7570 : OutputProcessor::TimeStepType::Zone,
7571 : OutputProcessor::StoreType::Sum,
7572 17 : walkin.Name);
7573 34 : SetupOutputVariable(state,
7574 : "Refrigeration Walk In Evaporator Sensible Cooling Rate",
7575 : Constant::Units::W,
7576 17 : walkin.TotSensCoolingEnergyRate,
7577 : OutputProcessor::TimeStepType::Zone,
7578 : OutputProcessor::StoreType::Average,
7579 17 : walkin.Name);
7580 34 : SetupOutputVariable(state,
7581 : "Refrigeration Walk In Evaporator Sensible Cooling Energy",
7582 : Constant::Units::J,
7583 17 : walkin.TotSensCoolingEnergy,
7584 : OutputProcessor::TimeStepType::Zone,
7585 : OutputProcessor::StoreType::Sum,
7586 17 : walkin.Name);
7587 34 : SetupOutputVariable(state,
7588 : "Refrigeration Walk In Evaporator Latent Cooling Rate",
7589 : Constant::Units::W,
7590 17 : walkin.TotLatCoolingEnergyRate,
7591 : OutputProcessor::TimeStepType::Zone,
7592 : OutputProcessor::StoreType::Average,
7593 17 : walkin.Name);
7594 34 : SetupOutputVariable(state,
7595 : "Refrigeration Walk In Evaporator Latent Cooling Energy",
7596 : Constant::Units::J,
7597 17 : walkin.TotLatCoolingEnergy,
7598 : OutputProcessor::TimeStepType::Zone,
7599 : OutputProcessor::StoreType::Sum,
7600 17 : walkin.Name);
7601 34 : SetupOutputVariable(state,
7602 : "Refrigeration Walk In Ancillary Electricity Rate",
7603 : Constant::Units::W,
7604 17 : walkin.TotalElecPower,
7605 : OutputProcessor::TimeStepType::Zone,
7606 : OutputProcessor::StoreType::Average,
7607 17 : walkin.Name);
7608 34 : SetupOutputVariable(state,
7609 : "Refrigeration Walk In Ancillary Electricity Energy",
7610 : Constant::Units::J,
7611 17 : walkin.TotalElecConsumption,
7612 : OutputProcessor::TimeStepType::Zone,
7613 : OutputProcessor::StoreType::Sum,
7614 17 : walkin.Name);
7615 34 : SetupOutputVariable(state,
7616 : "Refrigeration Walk In Fan Electricity Rate",
7617 : Constant::Units::W,
7618 17 : walkin.ElecFanPower,
7619 : OutputProcessor::TimeStepType::Zone,
7620 : OutputProcessor::StoreType::Average,
7621 17 : walkin.Name);
7622 34 : SetupOutputVariable(state,
7623 : "Refrigeration Walk In Fan Electricity Energy",
7624 : Constant::Units::J,
7625 17 : walkin.ElecFanConsumption,
7626 : OutputProcessor::TimeStepType::Zone,
7627 : OutputProcessor::StoreType::Sum,
7628 17 : walkin.Name,
7629 : Constant::eResource::Electricity,
7630 : OutputProcessor::Group::Building,
7631 : OutputProcessor::EndUseCat::Refrigeration,
7632 : "General");
7633 34 : SetupOutputVariable(state,
7634 : "Refrigeration Walk In Lighting Electricity Rate",
7635 : Constant::Units::W,
7636 17 : walkin.ElecLightingPower,
7637 : OutputProcessor::TimeStepType::Zone,
7638 : OutputProcessor::StoreType::Average,
7639 17 : walkin.Name);
7640 34 : SetupOutputVariable(state,
7641 : "Refrigeration Walk In Lighting Electricity Energy",
7642 : Constant::Units::J,
7643 17 : walkin.ElecLightingConsumption,
7644 : OutputProcessor::TimeStepType::Zone,
7645 : OutputProcessor::StoreType::Sum,
7646 17 : walkin.Name,
7647 : Constant::eResource::Electricity,
7648 : OutputProcessor::Group::Building,
7649 : OutputProcessor::EndUseCat::Refrigeration,
7650 : "General");
7651 34 : SetupOutputVariable(state,
7652 : "Refrigeration Walk In Heater Electricity Rate",
7653 : Constant::Units::W,
7654 17 : walkin.ElecHeaterPower,
7655 : OutputProcessor::TimeStepType::Zone,
7656 : OutputProcessor::StoreType::Average,
7657 17 : walkin.Name);
7658 34 : SetupOutputVariable(state,
7659 : "Refrigeration Walk In Heater Electricity Energy",
7660 : Constant::Units::J,
7661 17 : walkin.ElecHeaterConsumption,
7662 : OutputProcessor::TimeStepType::Zone,
7663 : OutputProcessor::StoreType::Sum,
7664 17 : walkin.Name,
7665 : Constant::eResource::Electricity,
7666 : OutputProcessor::Group::Building,
7667 : OutputProcessor::EndUseCat::Refrigeration,
7668 : "General");
7669 :
7670 : // Report only for WalkIns using electric defrost
7671 17 : if (walkin.defrostType == DefrostType::Elec) {
7672 28 : SetupOutputVariable(state,
7673 : "Refrigeration Walk In Defrost Electricity Rate",
7674 : Constant::Units::W,
7675 14 : walkin.ElecDefrostPower,
7676 : OutputProcessor::TimeStepType::Zone,
7677 : OutputProcessor::StoreType::Average,
7678 14 : walkin.Name);
7679 28 : SetupOutputVariable(state,
7680 : "Refrigeration Walk In Defrost Electricity Energy",
7681 : Constant::Units::J,
7682 14 : walkin.ElecDefrostConsumption,
7683 : OutputProcessor::TimeStepType::Zone,
7684 : OutputProcessor::StoreType::Sum,
7685 14 : walkin.Name,
7686 : Constant::eResource::Electricity,
7687 : OutputProcessor::Group::Building,
7688 : OutputProcessor::EndUseCat::Refrigeration,
7689 : "General");
7690 : }
7691 :
7692 : // Report walkin variables that are specified for each zone exposed to the walkin
7693 : // For "IDOut" variable in SetupOutputVariable, need to create a single name that includes
7694 : // both the walk-in name and the zone name - see "Walkin_and_zone_name" concatenation
7695 : // This new variable name is important if using an rvi file!
7696 34 : for (int zoneId = 1; zoneId <= walkin.NumZones; ++zoneId) {
7697 :
7698 17 : Walkin_and_zone_name = walkin.Name + "InZone" + walkin.ZoneName(zoneId);
7699 :
7700 34 : SetupOutputVariable(state,
7701 : "Refrigeration Walk In Zone Sensible Cooling Rate",
7702 : Constant::Units::W,
7703 17 : walkin.SensZoneCreditCoolRate(zoneId),
7704 : OutputProcessor::TimeStepType::Zone,
7705 : OutputProcessor::StoreType::Average,
7706 : Walkin_and_zone_name);
7707 34 : SetupOutputVariable(state,
7708 : "Refrigeration Walk In Zone Sensible Cooling Energy",
7709 : Constant::Units::J,
7710 17 : walkin.SensZoneCreditCool(zoneId),
7711 : OutputProcessor::TimeStepType::Zone,
7712 : OutputProcessor::StoreType::Sum,
7713 : Walkin_and_zone_name);
7714 34 : SetupOutputVariable(state,
7715 : "Refrigeration Walk In Zone Sensible Heating Rate",
7716 : Constant::Units::W,
7717 17 : walkin.SensZoneCreditHeatRate(zoneId),
7718 : OutputProcessor::TimeStepType::Zone,
7719 : OutputProcessor::StoreType::Average,
7720 : Walkin_and_zone_name);
7721 34 : SetupOutputVariable(state,
7722 : "Refrigeration Walk In Zone Sensible Heating Energy",
7723 : Constant::Units::J,
7724 17 : walkin.SensZoneCreditHeat(zoneId),
7725 : OutputProcessor::TimeStepType::Zone,
7726 : OutputProcessor::StoreType::Sum,
7727 : Walkin_and_zone_name);
7728 34 : SetupOutputVariable(state,
7729 : "Refrigeration Walk In Zone Latent Rate",
7730 : Constant::Units::W,
7731 17 : walkin.LatZoneCreditRate(zoneId),
7732 : OutputProcessor::TimeStepType::Zone,
7733 : OutputProcessor::StoreType::Average,
7734 : Walkin_and_zone_name);
7735 34 : SetupOutputVariable(state,
7736 : "Refrigeration Walk In Zone Latent Energy",
7737 : Constant::Units::J,
7738 17 : walkin.LatZoneCredit(zoneId),
7739 : OutputProcessor::TimeStepType::Zone,
7740 : OutputProcessor::StoreType::Sum,
7741 : Walkin_and_zone_name);
7742 :
7743 17 : if (walkin.ZoneNum(zoneId) > 0) {
7744 34 : SetupZoneInternalGain(state,
7745 17 : walkin.ZoneNum(zoneId),
7746 : Walkin_and_zone_name,
7747 : DataHeatBalance::IntGainType::RefrigerationWalkIn,
7748 17 : &walkin.SensZoneCreditRate(zoneId),
7749 : nullptr,
7750 : nullptr,
7751 17 : &walkin.LatZoneCreditRate(zoneId));
7752 : }
7753 :
7754 : } // ZoneID
7755 : } //(.NOT. WalkIn( WalkInNum)%unusedWalkIn)
7756 : } // NumSimulationWalkIns
7757 : } // NumSimulationWalkIns > 0
7758 :
7759 801 : if (state.dataRefrigCase->NumSimulationRefrigAirChillers > 0) {
7760 : // Setup Report Variables for simulated Warehouse coils (do not report unused warehouse coils)
7761 : // CurrentModuleObject='Refrigeration:AirChiller'
7762 84 : for (int coilNum = 1; coilNum <= state.dataRefrigCase->NumSimulationRefrigAirChillers; ++coilNum) {
7763 83 : auto &coil = WarehouseCoil(coilNum);
7764 83 : if (coil.NumSysAttach == 1) { // ensure no unuseds reported
7765 166 : SetupOutputVariable(state,
7766 : "Refrigeration Zone Air Chiller Total Cooling Rate",
7767 : Constant::Units::W,
7768 83 : coil.TotalCoolingLoad,
7769 : OutputProcessor::TimeStepType::System,
7770 : OutputProcessor::StoreType::Average,
7771 83 : coil.Name);
7772 166 : SetupOutputVariable(state,
7773 : "Refrigeration Zone Air Chiller Total Cooling Energy",
7774 : Constant::Units::J,
7775 83 : coil.TotalCoolingEnergy,
7776 : OutputProcessor::TimeStepType::System,
7777 : OutputProcessor::StoreType::Sum,
7778 83 : coil.Name);
7779 166 : SetupOutputVariable(state,
7780 : "Refrigeration Zone Air Chiller Sensible Cooling Rate",
7781 : Constant::Units::W,
7782 83 : coil.SensCoolingEnergyRate,
7783 : OutputProcessor::TimeStepType::System,
7784 : OutputProcessor::StoreType::Average,
7785 83 : coil.Name);
7786 166 : SetupOutputVariable(state,
7787 : "Refrigeration Zone Air Chiller Sensible Cooling Energy",
7788 : Constant::Units::J,
7789 83 : coil.SensCoolingEnergy,
7790 : OutputProcessor::TimeStepType::System,
7791 : OutputProcessor::StoreType::Sum,
7792 83 : coil.Name);
7793 166 : SetupOutputVariable(state,
7794 : "Refrigeration Zone Air Chiller Latent Cooling Rate",
7795 : Constant::Units::W,
7796 83 : coil.LatCreditRate,
7797 : OutputProcessor::TimeStepType::System,
7798 : OutputProcessor::StoreType::Average,
7799 83 : coil.Name);
7800 166 : SetupOutputVariable(state,
7801 : "Refrigeration Zone Air Chiller Latent Cooling Energy",
7802 : Constant::Units::J,
7803 83 : coil.LatCreditEnergy,
7804 : OutputProcessor::TimeStepType::System,
7805 : OutputProcessor::StoreType::Sum,
7806 83 : coil.Name);
7807 166 : SetupOutputVariable(state,
7808 : "Refrigeration Zone Air Chiller Water Removed Mass Flow Rate",
7809 : Constant::Units::kg_s,
7810 83 : coil.LatKgPerS_ToZone,
7811 : OutputProcessor::TimeStepType::System,
7812 : OutputProcessor::StoreType::Average,
7813 83 : coil.Name);
7814 166 : SetupOutputVariable(state,
7815 : "Refrigeration Zone Air Chiller Total Electricity Rate",
7816 : Constant::Units::W,
7817 83 : coil.TotalElecPower,
7818 : OutputProcessor::TimeStepType::System,
7819 : OutputProcessor::StoreType::Average,
7820 83 : coil.Name);
7821 166 : SetupOutputVariable(state,
7822 : "Refrigeration Zone Air Chiller Total Electricity Energy",
7823 : Constant::Units::J,
7824 83 : coil.TotalElecConsumption,
7825 : OutputProcessor::TimeStepType::System,
7826 : OutputProcessor::StoreType::Sum,
7827 83 : coil.Name); // components are metered separately
7828 166 : SetupOutputVariable(state,
7829 : "Refrigeration Zone Air Chiller Fan Electricity Rate",
7830 : Constant::Units::W,
7831 83 : coil.ElecFanPower,
7832 : OutputProcessor::TimeStepType::System,
7833 : OutputProcessor::StoreType::Average,
7834 83 : coil.Name);
7835 166 : SetupOutputVariable(state,
7836 : "Refrigeration Zone Air Chiller Fan Electric Energy",
7837 : Constant::Units::J,
7838 83 : coil.ElecFanConsumption,
7839 : OutputProcessor::TimeStepType::System,
7840 : OutputProcessor::StoreType::Sum,
7841 83 : coil.Name,
7842 : Constant::eResource::Electricity,
7843 : OutputProcessor::Group::Building,
7844 : OutputProcessor::EndUseCat::Refrigeration,
7845 : "General");
7846 166 : SetupOutputVariable(state,
7847 : "Refrigeration Zone Air Chiller Heater Electricity Rate",
7848 : Constant::Units::W,
7849 83 : coil.ElecHeaterPower,
7850 : OutputProcessor::TimeStepType::System,
7851 : OutputProcessor::StoreType::Average,
7852 83 : coil.Name);
7853 166 : SetupOutputVariable(state,
7854 : "Refrigeration Zone Air Chiller Heater Electricity Energy",
7855 : Constant::Units::J,
7856 83 : coil.ElecHeaterConsumption,
7857 : OutputProcessor::TimeStepType::System,
7858 : OutputProcessor::StoreType::Sum,
7859 83 : coil.Name,
7860 : Constant::eResource::Electricity,
7861 : OutputProcessor::Group::Building,
7862 : OutputProcessor::EndUseCat::Refrigeration,
7863 : "General");
7864 166 : SetupOutputVariable(state,
7865 : "Refrigeration Zone Air Chiller Sensible Heat Ratio",
7866 : Constant::Units::None,
7867 83 : coil.SensHeatRatio,
7868 : OutputProcessor::TimeStepType::System,
7869 : OutputProcessor::StoreType::Average,
7870 83 : coil.Name);
7871 166 : SetupOutputVariable(state,
7872 : "Refrigeration Zone Air Chiller Frost Accumulation Mass",
7873 : Constant::Units::kg,
7874 83 : coil.KgFrost,
7875 : OutputProcessor::TimeStepType::System,
7876 : OutputProcessor::StoreType::Average,
7877 83 : coil.Name);
7878 166 : SetupOutputVariable(state,
7879 : "Refrigeration Zone Air Chiller Zone Total Cooling Rate",
7880 : Constant::Units::W,
7881 83 : coil.ReportTotalCoolCreditRate,
7882 : OutputProcessor::TimeStepType::System,
7883 : OutputProcessor::StoreType::Average,
7884 83 : coil.Name);
7885 166 : SetupOutputVariable(state,
7886 : "Refrigeration Zone Air Chiller Zone Total Cooling Energy",
7887 : Constant::Units::J,
7888 83 : coil.ReportTotalCoolCreditEnergy,
7889 : OutputProcessor::TimeStepType::System,
7890 : OutputProcessor::StoreType::Sum,
7891 83 : coil.Name);
7892 166 : SetupOutputVariable(state,
7893 : "Refrigeration Zone Air Chiller Zone Sensible Cooling Rate",
7894 : Constant::Units::W,
7895 83 : coil.ReportSensCoolCreditRate,
7896 : OutputProcessor::TimeStepType::System,
7897 : OutputProcessor::StoreType::Average,
7898 83 : coil.Name);
7899 166 : SetupOutputVariable(state,
7900 : "Refrigeration Zone Air Chiller Zone Sensible Cooling Energy",
7901 : Constant::Units::J,
7902 83 : coil.ReportSensCoolCreditEnergy,
7903 : OutputProcessor::TimeStepType::System,
7904 : OutputProcessor::StoreType::Sum,
7905 83 : coil.Name);
7906 166 : SetupOutputVariable(state,
7907 : "Refrigeration Zone Air Chiller Zone Heating Rate",
7908 : Constant::Units::W,
7909 83 : coil.ReportHeatingCreditRate,
7910 : OutputProcessor::TimeStepType::System,
7911 : OutputProcessor::StoreType::Average,
7912 83 : coil.Name);
7913 166 : SetupOutputVariable(state,
7914 : "Refrigeration Zone Air Chiller Zone Heating Energy",
7915 : Constant::Units::J,
7916 83 : coil.ReportHeatingCreditEnergy,
7917 : OutputProcessor::TimeStepType::System,
7918 : OutputProcessor::StoreType::Sum,
7919 83 : coil.Name);
7920 :
7921 : // Report only for Warehouse coils using electric defrost
7922 83 : if (coil.defrostType == DefrostType::Elec) {
7923 164 : SetupOutputVariable(state,
7924 : "Refrigeration Zone Air Chiller Defrost Electricity Rate",
7925 : Constant::Units::W,
7926 82 : coil.ElecDefrostPower,
7927 : OutputProcessor::TimeStepType::System,
7928 : OutputProcessor::StoreType::Average,
7929 82 : coil.Name);
7930 164 : SetupOutputVariable(state,
7931 : "Refrigeration Zone Air Chiller Defrost Electricity Energy",
7932 : Constant::Units::J,
7933 82 : coil.ElecDefrostConsumption,
7934 : OutputProcessor::TimeStepType::System,
7935 : OutputProcessor::StoreType::Sum,
7936 82 : coil.Name,
7937 : Constant::eResource::Electricity,
7938 : OutputProcessor::Group::Building,
7939 : OutputProcessor::EndUseCat::Refrigeration,
7940 : "General");
7941 : } // electric defrost coil
7942 : } //(.NOT. coil%unusedWarehouseCoil)
7943 : } // NumSimulationWarehouseCoils
7944 : } // NumSimulationRefrigAirChillers > 0
7945 :
7946 : // There are no report variables for Chiller sets because they are
7947 : // used to pass the demand to the coils, but are NOT used to provide the
7948 : // cooling energy to the zone (because more than one set may cool a zone)
7949 :
7950 : // Report sum of all refrigeration interactions with each zone
7951 :
7952 6002 : for (int zoneID = 1; zoneID <= state.dataGlobal->NumOfZones; ++zoneID) {
7953 5201 : if (state.dataRefrigCase->RefrigPresentInZone(zoneID)) {
7954 71 : if (state.dataRefrigCase->HaveCasesOrWalkins) {
7955 122 : SetupOutputVariable(state,
7956 : "Refrigeration Zone Case and Walk In Total Sensible Cooling Rate",
7957 : Constant::Units::W,
7958 61 : state.dataHeatBal->RefrigCaseCredit(zoneID).SenCaseCreditToZone,
7959 : OutputProcessor::TimeStepType::Zone,
7960 : OutputProcessor::StoreType::Average,
7961 61 : state.dataHeatBal->Zone(zoneID).Name);
7962 122 : SetupOutputVariable(state,
7963 : "Refrigeration Zone Case and Walk In Total Sensible Cooling Energy",
7964 : Constant::Units::J,
7965 61 : CaseWIZoneReport(zoneID).SenCaseCreditToZoneEnergy,
7966 : OutputProcessor::TimeStepType::Zone,
7967 : OutputProcessor::StoreType::Sum,
7968 61 : state.dataHeatBal->Zone(zoneID).Name);
7969 122 : SetupOutputVariable(state,
7970 : "Refrigeration Zone Case and Walk In Heating Rate",
7971 : Constant::Units::W,
7972 61 : CaseWIZoneReport(zoneID).HeatingToZoneRate,
7973 : OutputProcessor::TimeStepType::Zone,
7974 : OutputProcessor::StoreType::Average,
7975 61 : state.dataHeatBal->Zone(zoneID).Name);
7976 122 : SetupOutputVariable(state,
7977 : "Refrigeration Zone Case and Walk In Heating Energy",
7978 : Constant::Units::J,
7979 61 : CaseWIZoneReport(zoneID).HeatingToZoneEnergy,
7980 : OutputProcessor::TimeStepType::Zone,
7981 : OutputProcessor::StoreType::Sum,
7982 61 : state.dataHeatBal->Zone(zoneID).Name);
7983 122 : SetupOutputVariable(state,
7984 : "Refrigeration Zone Case and Walk In Sensible Cooling Rate",
7985 : Constant::Units::W,
7986 61 : CaseWIZoneReport(zoneID).SenCoolingToZoneRate,
7987 : OutputProcessor::TimeStepType::Zone,
7988 : OutputProcessor::StoreType::Average,
7989 61 : state.dataHeatBal->Zone(zoneID).Name);
7990 122 : SetupOutputVariable(state,
7991 : "Refrigeration Zone Case and Walk In Sensible Cooling Energy",
7992 : Constant::Units::J,
7993 61 : CaseWIZoneReport(zoneID).SenCoolingToZoneEnergy,
7994 : OutputProcessor::TimeStepType::Zone,
7995 : OutputProcessor::StoreType::Sum,
7996 61 : state.dataHeatBal->Zone(zoneID).Name);
7997 122 : SetupOutputVariable(state,
7998 : "Refrigeration Zone Case and Walk In Total Latent Cooling Rate",
7999 : Constant::Units::W,
8000 61 : CaseWIZoneReport(zoneID).LatCoolingToZoneRate,
8001 : OutputProcessor::TimeStepType::Zone,
8002 : OutputProcessor::StoreType::Average,
8003 61 : state.dataHeatBal->Zone(zoneID).Name);
8004 122 : SetupOutputVariable(state,
8005 : "Refrigeration Zone Case and Walk In Total Latent Cooling Energy",
8006 : Constant::Units::J,
8007 61 : CaseWIZoneReport(zoneID).LatCoolingToZoneEnergy,
8008 : OutputProcessor::TimeStepType::Zone,
8009 : OutputProcessor::StoreType::Sum,
8010 61 : state.dataHeatBal->Zone(zoneID).Name);
8011 122 : SetupOutputVariable(state,
8012 : "Refrigeration Zone Case and Walk In Total Cooling Rate",
8013 : Constant::Units::W,
8014 61 : CaseWIZoneReport(zoneID).TotCoolingToZoneRate,
8015 : OutputProcessor::TimeStepType::Zone,
8016 : OutputProcessor::StoreType::Average,
8017 61 : state.dataHeatBal->Zone(zoneID).Name);
8018 122 : SetupOutputVariable(state,
8019 : "Refrigeration Zone Case and Walk In Total Cooling Energy",
8020 : Constant::Units::J,
8021 61 : CaseWIZoneReport(zoneID).TotCoolingToZoneEnergy,
8022 : OutputProcessor::TimeStepType::Zone,
8023 : OutputProcessor::StoreType::Sum,
8024 61 : state.dataHeatBal->Zone(zoneID).Name);
8025 122 : SetupOutputVariable(state,
8026 : "Refrigeration Zone Case and Walk In Total Heat Transfer Rate",
8027 : Constant::Units::W,
8028 61 : CaseWIZoneReport(zoneID).TotHtXferToZoneRate,
8029 : OutputProcessor::TimeStepType::Zone,
8030 : OutputProcessor::StoreType::Average,
8031 61 : state.dataHeatBal->Zone(zoneID).Name);
8032 122 : SetupOutputVariable(state,
8033 : "Refrigeration Zone Case and Walk In Total Heat Transfer Energy",
8034 : Constant::Units::J,
8035 61 : CaseWIZoneReport(zoneID).TotHtXferToZoneEnergy,
8036 : OutputProcessor::TimeStepType::Zone,
8037 : OutputProcessor::StoreType::Sum,
8038 61 : state.dataHeatBal->Zone(zoneID).Name);
8039 : } // HaveCasesOrWalkIns
8040 :
8041 71 : if (state.dataRefrigCase->HaveChillers) {
8042 20 : SetupOutputVariable(state,
8043 : "Refrigeration Zone Air Chiller Sensible Heat Transfer Rate",
8044 : Constant::Units::W,
8045 10 : CoilSysCredit(zoneID).SenCreditToZoneRate,
8046 : OutputProcessor::TimeStepType::System,
8047 : OutputProcessor::StoreType::Average,
8048 10 : state.dataHeatBal->Zone(zoneID).Name);
8049 20 : SetupOutputVariable(state,
8050 : "Refrigeration Zone Air Chiller Sensible Heat Transfer Energy",
8051 : Constant::Units::J,
8052 10 : CoilSysCredit(zoneID).SenCreditToZoneEnergy,
8053 : OutputProcessor::TimeStepType::System,
8054 : OutputProcessor::StoreType::Sum,
8055 10 : state.dataHeatBal->Zone(zoneID).Name);
8056 20 : SetupOutputVariable(state,
8057 : "Refrigeration Zone Air Chiller Sensible Cooling Rate",
8058 : Constant::Units::W,
8059 10 : CoilSysCredit(zoneID).ReportSenCoolingToZoneRate,
8060 : OutputProcessor::TimeStepType::System,
8061 : OutputProcessor::StoreType::Average,
8062 10 : state.dataHeatBal->Zone(zoneID).Name);
8063 20 : SetupOutputVariable(state,
8064 : "Refrigeration Zone Air Chiller Sensible Cooling Energy",
8065 : Constant::Units::J,
8066 10 : CoilSysCredit(zoneID).ReportSenCoolingToZoneEnergy,
8067 : OutputProcessor::TimeStepType::System,
8068 : OutputProcessor::StoreType::Sum,
8069 10 : state.dataHeatBal->Zone(zoneID).Name);
8070 20 : SetupOutputVariable(state,
8071 : "Refrigeration Zone Air Chiller Latent Cooling Rate",
8072 : Constant::Units::W,
8073 10 : CoilSysCredit(zoneID).ReportLatCreditToZoneRate,
8074 : OutputProcessor::TimeStepType::System,
8075 : OutputProcessor::StoreType::Average,
8076 10 : state.dataHeatBal->Zone(zoneID).Name);
8077 20 : SetupOutputVariable(state,
8078 : "Refrigeration Zone Air Chiller Latent Cooling Energy",
8079 : Constant::Units::J,
8080 10 : CoilSysCredit(zoneID).ReportLatCreditToZoneEnergy,
8081 : OutputProcessor::TimeStepType::System,
8082 : OutputProcessor::StoreType::Sum,
8083 10 : state.dataHeatBal->Zone(zoneID).Name);
8084 20 : SetupOutputVariable(state,
8085 : "Refrigeration Zone Air Chiller Water Removed Mass Flow Rate",
8086 : Constant::Units::kg_s,
8087 10 : CoilSysCredit(zoneID).ReportH2ORemovedKgPerS_FromZoneRate,
8088 : OutputProcessor::TimeStepType::System,
8089 : OutputProcessor::StoreType::Average,
8090 10 : state.dataHeatBal->Zone(zoneID).Name);
8091 20 : SetupOutputVariable(state,
8092 : "Refrigeration Zone Air Chiller Total Cooling Rate",
8093 : Constant::Units::W,
8094 10 : CoilSysCredit(zoneID).ReportTotCoolingToZoneRate,
8095 : OutputProcessor::TimeStepType::System,
8096 : OutputProcessor::StoreType::Average,
8097 10 : state.dataHeatBal->Zone(zoneID).Name);
8098 20 : SetupOutputVariable(state,
8099 : "Refrigeration Zone Air Chiller Total Cooling Energy",
8100 : Constant::Units::J,
8101 10 : CoilSysCredit(zoneID).ReportTotCoolingToZoneEnergy,
8102 : OutputProcessor::TimeStepType::System,
8103 : OutputProcessor::StoreType::Sum,
8104 10 : state.dataHeatBal->Zone(zoneID).Name);
8105 20 : SetupOutputVariable(state,
8106 : "Refrigeration Zone Air Chiller Heating Rate",
8107 : Constant::Units::W,
8108 10 : CoilSysCredit(zoneID).ReportHeatingToZoneRate,
8109 : OutputProcessor::TimeStepType::System,
8110 : OutputProcessor::StoreType::Average,
8111 10 : state.dataHeatBal->Zone(zoneID).Name);
8112 20 : SetupOutputVariable(state,
8113 : "Refrigeration Zone Air Chiller Heating Energy",
8114 : Constant::Units::J,
8115 10 : CoilSysCredit(zoneID).ReportHeatingToZoneEnergy,
8116 : OutputProcessor::TimeStepType::System,
8117 : OutputProcessor::StoreType::Sum,
8118 10 : state.dataHeatBal->Zone(zoneID).Name);
8119 : } // HaveChillers
8120 : } // RefrigPresentInZone(ZoneID)
8121 : } // ZoneID
8122 :
8123 801 : if (state.dataRefrigCase->NumSimulationSecondarySystems > 0) {
8124 : // CurrentModuleObject='Refrigeration:SecondarySystem'
8125 3 : for (int secondNum = 1; secondNum <= state.dataRefrigCase->NumSimulationSecondarySystems; ++secondNum) {
8126 2 : auto &secondary = Secondary(secondNum);
8127 2 : if (secondary.NumSysAttach == 1) {
8128 2 : if (secondary.CoilFlag) { // secondary system serves chillers and is solved on HVAC time step
8129 0 : SetupOutputVariable(state,
8130 : "Refrigeration Air Chiller Secondary Loop Pump Electricity Rate",
8131 : Constant::Units::W,
8132 0 : secondary.PumpPowerTotal,
8133 : OutputProcessor::TimeStepType::System,
8134 : OutputProcessor::StoreType::Average,
8135 0 : secondary.Name);
8136 0 : SetupOutputVariable(state,
8137 : "Refrigeration Air Chiller Secondary Loop Pump Electricity Energy",
8138 : Constant::Units::J,
8139 0 : secondary.PumpElecEnergyTotal,
8140 : OutputProcessor::TimeStepType::System,
8141 : OutputProcessor::StoreType::Sum,
8142 0 : secondary.Name,
8143 : Constant::eResource::Electricity,
8144 : OutputProcessor::Group::Plant,
8145 : OutputProcessor::EndUseCat::Refrigeration,
8146 : secondary.EndUseSubcategory);
8147 0 : SetupOutputVariable(state,
8148 : "Refrigeration Air Chiller Secondary Loop Load Heat Transfer Rate",
8149 : Constant::Units::W,
8150 0 : secondary.TotalRefrigLoad,
8151 : OutputProcessor::TimeStepType::System,
8152 : OutputProcessor::StoreType::Average,
8153 0 : secondary.Name);
8154 0 : SetupOutputVariable(state,
8155 : "Refrigeration Air Chiller Secondary Loop Load Heat Transfer Energy",
8156 : Constant::Units::J,
8157 0 : secondary.TotalRefrigEnergy,
8158 : OutputProcessor::TimeStepType::System,
8159 : OutputProcessor::StoreType::Sum,
8160 0 : secondary.Name);
8161 0 : SetupOutputVariable(state,
8162 : "Refrigeration Air Chiller Secondary Loop Total Heat Transfer Rate",
8163 : Constant::Units::W,
8164 0 : secondary.TotalCoolingLoad,
8165 : OutputProcessor::TimeStepType::System,
8166 : OutputProcessor::StoreType::Average,
8167 0 : secondary.Name);
8168 0 : SetupOutputVariable(state,
8169 : "Refrigeration Air Chiller Secondary Loop Total Heat Transfer Energy",
8170 : Constant::Units::J,
8171 0 : secondary.TotalCoolingEnergy,
8172 : OutputProcessor::TimeStepType::System,
8173 : OutputProcessor::StoreType::Sum,
8174 0 : secondary.Name);
8175 0 : SetupOutputVariable(state,
8176 : "Refrigeration Air Chiller Secondary Loop Estimated Refrigerant Inventory Mass",
8177 : Constant::Units::kg,
8178 0 : secondary.RefInventory,
8179 : OutputProcessor::TimeStepType::System,
8180 : OutputProcessor::StoreType::Average,
8181 0 : secondary.Name);
8182 0 : SetupOutputVariable(state,
8183 : "Refrigeration Air Chiller Secondary Loop Volume Flow Rate",
8184 : Constant::Units::m3_s,
8185 0 : secondary.FlowVolActual,
8186 : OutputProcessor::TimeStepType::System,
8187 : OutputProcessor::StoreType::Average,
8188 0 : secondary.Name);
8189 0 : SetupOutputVariable(state,
8190 : "Refrigeration Air Chiller Secondary Loop Pipe Heat Gain Rate",
8191 : Constant::Units::W,
8192 0 : secondary.DistPipeHeatGain,
8193 : OutputProcessor::TimeStepType::System,
8194 : OutputProcessor::StoreType::Average,
8195 0 : secondary.Name);
8196 0 : SetupOutputVariable(state,
8197 : "Refrigeration Air Chiller Secondary Loop Pipe Heat Gain Energy",
8198 : Constant::Units::J,
8199 0 : secondary.DistPipeHeatGainEnergy,
8200 : OutputProcessor::TimeStepType::System,
8201 : OutputProcessor::StoreType::Sum,
8202 0 : secondary.Name);
8203 0 : SetupOutputVariable(state,
8204 : "Refrigeration Air Chiller Secondary Loop Receiver Heat Gain Rate",
8205 : Constant::Units::W,
8206 0 : secondary.ReceiverHeatGain,
8207 : OutputProcessor::TimeStepType::System,
8208 : OutputProcessor::StoreType::Average,
8209 0 : secondary.Name);
8210 0 : SetupOutputVariable(state,
8211 : "Refrigeration Air Chiller Secondary Loop Receiver Heat Gain Energy",
8212 : Constant::Units::J,
8213 0 : secondary.ReceiverHeatGainEnergy,
8214 : OutputProcessor::TimeStepType::System,
8215 : OutputProcessor::StoreType::Sum,
8216 0 : secondary.Name);
8217 : } else { // Secondary loop serves cases and walk-ins on zone(load) time step
8218 4 : SetupOutputVariable(state,
8219 : "Refrigeration Secondary Loop Pump Electricity Rate",
8220 : Constant::Units::W,
8221 2 : secondary.PumpPowerTotal,
8222 : OutputProcessor::TimeStepType::Zone,
8223 : OutputProcessor::StoreType::Average,
8224 2 : secondary.Name);
8225 4 : SetupOutputVariable(state,
8226 : "Refrigeration Secondary Loop Pump Electricity Energy",
8227 : Constant::Units::J,
8228 2 : secondary.PumpElecEnergyTotal,
8229 : OutputProcessor::TimeStepType::Zone,
8230 : OutputProcessor::StoreType::Sum,
8231 2 : secondary.Name,
8232 : Constant::eResource::Electricity,
8233 : OutputProcessor::Group::Plant,
8234 : OutputProcessor::EndUseCat::Refrigeration,
8235 : secondary.EndUseSubcategory);
8236 4 : SetupOutputVariable(state,
8237 : "Refrigeration Secondary Loop Load Heat Transfer Rate",
8238 : Constant::Units::W,
8239 2 : secondary.TotalRefrigLoad,
8240 : OutputProcessor::TimeStepType::Zone,
8241 : OutputProcessor::StoreType::Average,
8242 2 : secondary.Name);
8243 4 : SetupOutputVariable(state,
8244 : "Refrigeration Secondary Loop Load Heat Transfer Energy",
8245 : Constant::Units::J,
8246 2 : secondary.TotalRefrigEnergy,
8247 : OutputProcessor::TimeStepType::Zone,
8248 : OutputProcessor::StoreType::Sum,
8249 2 : secondary.Name);
8250 4 : SetupOutputVariable(state,
8251 : "Refrigeration Secondary Loop Total Heat Transfer Rate",
8252 : Constant::Units::W,
8253 2 : secondary.TotalCoolingLoad,
8254 : OutputProcessor::TimeStepType::Zone,
8255 : OutputProcessor::StoreType::Average,
8256 2 : secondary.Name);
8257 4 : SetupOutputVariable(state,
8258 : "Refrigeration Secondary Loop Total Heat Transfer Energy",
8259 : Constant::Units::J,
8260 2 : secondary.TotalCoolingEnergy,
8261 : OutputProcessor::TimeStepType::Zone,
8262 : OutputProcessor::StoreType::Sum,
8263 2 : secondary.Name);
8264 4 : SetupOutputVariable(state,
8265 : "Refrigeration Secondary Loop Estimated Refrigerant Inventory Mass",
8266 : Constant::Units::kg,
8267 2 : secondary.RefInventory,
8268 : OutputProcessor::TimeStepType::Zone,
8269 : OutputProcessor::StoreType::Average,
8270 2 : secondary.Name);
8271 4 : SetupOutputVariable(state,
8272 : "Refrigeration Secondary Loop Volume Flow Rate",
8273 : Constant::Units::m3_s,
8274 2 : secondary.FlowVolActual,
8275 : OutputProcessor::TimeStepType::Zone,
8276 : OutputProcessor::StoreType::Average,
8277 2 : secondary.Name);
8278 4 : SetupOutputVariable(state,
8279 : "Refrigeration Secondary Loop Pipe Heat Gain Rate",
8280 : Constant::Units::W,
8281 2 : secondary.DistPipeHeatGain,
8282 : OutputProcessor::TimeStepType::Zone,
8283 : OutputProcessor::StoreType::Average,
8284 2 : secondary.Name);
8285 4 : SetupOutputVariable(state,
8286 : "Refrigeration Secondary Loop Pipe Heat Gain Energy",
8287 : Constant::Units::J,
8288 2 : secondary.DistPipeHeatGainEnergy,
8289 : OutputProcessor::TimeStepType::Zone,
8290 : OutputProcessor::StoreType::Sum,
8291 2 : secondary.Name);
8292 4 : SetupOutputVariable(state,
8293 : "Refrigeration Secondary Loop Receiver Heat Gain Rate",
8294 : Constant::Units::W,
8295 2 : secondary.ReceiverHeatGain,
8296 : OutputProcessor::TimeStepType::Zone,
8297 : OutputProcessor::StoreType::Average,
8298 2 : secondary.Name);
8299 4 : SetupOutputVariable(state,
8300 : "Refrigeration Secondary Loop Receiver Heat Gain Energy",
8301 : Constant::Units::J,
8302 2 : secondary.ReceiverHeatGainEnergy,
8303 : OutputProcessor::TimeStepType::Zone,
8304 : OutputProcessor::StoreType::Sum,
8305 2 : secondary.Name);
8306 : } // NOT coilflag so on Zone timestep
8307 2 : if (secondary.ReceiverZoneNum > 0) {
8308 1 : SetupZoneInternalGain(state,
8309 : secondary.ReceiverZoneNum,
8310 : secondary.Name,
8311 : DataHeatBalance::IntGainType::RefrigerationSecondaryReceiver,
8312 : &secondary.ReceiverZoneHeatGain);
8313 : }
8314 2 : if (secondary.DistPipeZoneNum > 0) {
8315 2 : SetupZoneInternalGain(state,
8316 : secondary.DistPipeZoneNum,
8317 : secondary.Name,
8318 : DataHeatBalance::IntGainType::RefrigerationSecondaryPipe,
8319 : &secondary.DistPipeZoneHeatGain);
8320 : }
8321 : } // not an unused
8322 : } // NumSimulationSecondarySystems
8323 : } // NumSimulationSecondarySystems > 0
8324 :
8325 : // Setup Report Variables for Refrigeration Compressor Rack
8326 801 : if (state.dataRefrigCase->NumRefrigeratedRacks > 0) {
8327 : // CurrentModuleObject='Refrigeration:CompressorRack'
8328 92 : for (int rackNum = 1; rackNum <= state.dataRefrigCase->NumRefrigeratedRacks; ++rackNum) {
8329 61 : auto &rack = RefrigRack(rackNum);
8330 61 : if (rack.CoilFlag) { // rack serves chillers and is solved on HVAC time step
8331 0 : SetupOutputVariable(state,
8332 : "Refrigeration Air Chiller Compressor Rack Electricity Rate",
8333 : Constant::Units::W,
8334 0 : rack.RackCompressorPower,
8335 : OutputProcessor::TimeStepType::System,
8336 : OutputProcessor::StoreType::Average,
8337 0 : rack.Name);
8338 0 : SetupOutputVariable(state,
8339 : "Refrigeration Air Chiller Compressor Rack Electricity Energy",
8340 : Constant::Units::J,
8341 0 : rack.RackElecConsumption,
8342 : OutputProcessor::TimeStepType::System,
8343 : OutputProcessor::StoreType::Sum,
8344 0 : rack.Name,
8345 : Constant::eResource::Electricity,
8346 : OutputProcessor::Group::Plant,
8347 : OutputProcessor::EndUseCat::Refrigeration,
8348 : rack.EndUseSubcategory);
8349 0 : SetupOutputVariable(state,
8350 : "Refrigeration Air Chiller Compressor Rack Condenser Fan Electricity Rate",
8351 : Constant::Units::W,
8352 0 : rack.ActualCondenserFanPower,
8353 : OutputProcessor::TimeStepType::System,
8354 : OutputProcessor::StoreType::Average,
8355 0 : rack.Name);
8356 0 : SetupOutputVariable(state,
8357 : "Refrigeration Air Chiller Compressor Rack Condenser Fan Electricity Energy",
8358 : Constant::Units::J,
8359 0 : rack.CondenserFanConsumption,
8360 : OutputProcessor::TimeStepType::System,
8361 : OutputProcessor::StoreType::Sum,
8362 0 : rack.Name,
8363 : Constant::eResource::Electricity,
8364 : OutputProcessor::Group::Plant,
8365 : OutputProcessor::EndUseCat::Refrigeration,
8366 : rack.EndUseSubcategory);
8367 0 : SetupOutputVariable(state,
8368 : "Refrigeration Air Chiller Compressor Rack Total Heat Transfer Rate",
8369 : Constant::Units::W,
8370 0 : rack.RackCapacity,
8371 : OutputProcessor::TimeStepType::System,
8372 : OutputProcessor::StoreType::Average,
8373 0 : rack.Name);
8374 0 : SetupOutputVariable(state,
8375 : "Refrigeration Air Chiller Compressor Rack Total Heat Transfer Energy",
8376 : Constant::Units::J,
8377 0 : rack.RackCoolingEnergy,
8378 : OutputProcessor::TimeStepType::System,
8379 : OutputProcessor::StoreType::Sum,
8380 0 : rack.Name,
8381 : Constant::eResource::EnergyTransfer,
8382 : OutputProcessor::Group::Plant,
8383 : OutputProcessor::EndUseCat::Refrigeration,
8384 : rack.EndUseSubcategory);
8385 0 : SetupOutputVariable(state,
8386 : "Refrigeration Air Chiller Compressor Rack COP",
8387 : Constant::Units::W_W,
8388 0 : rack.RackCompressorCOP,
8389 : OutputProcessor::TimeStepType::System,
8390 : OutputProcessor::StoreType::Average,
8391 0 : rack.Name);
8392 :
8393 0 : if (rack.CondenserType == DataHeatBalance::RefrigCondenserType::Evap) {
8394 0 : SetupOutputVariable(state,
8395 : "Refrigeration Air Chiller Compressor Rack Evaporative Condenser Pump Electricity Rate",
8396 : Constant::Units::W,
8397 0 : rack.ActualEvapPumpPower,
8398 : OutputProcessor::TimeStepType::System,
8399 : OutputProcessor::StoreType::Average,
8400 0 : rack.Name);
8401 0 : SetupOutputVariable(state,
8402 : "Refrigeration Air Chiller Compressor Rack Evaporative Condenser Pump Electricity Energy",
8403 : Constant::Units::J,
8404 0 : rack.EvapPumpConsumption,
8405 : OutputProcessor::TimeStepType::System,
8406 : OutputProcessor::StoreType::Sum,
8407 0 : rack.Name,
8408 : Constant::eResource::Electricity,
8409 : OutputProcessor::Group::Plant,
8410 : OutputProcessor::EndUseCat::Refrigeration,
8411 : rack.EndUseSubcategory);
8412 0 : SetupOutputVariable(state,
8413 : "Refrigeration Air Chiller Compressor Rack Evaporative Condenser Basin Heater Electricity Rate",
8414 : Constant::Units::W,
8415 0 : rack.BasinHeaterPower,
8416 : OutputProcessor::TimeStepType::System,
8417 : OutputProcessor::StoreType::Average,
8418 0 : rack.Name);
8419 0 : SetupOutputVariable(state,
8420 : "Refrigeration Air Chiller Compressor Rack Evaporative Condenser Basin Heater Electricity Energy",
8421 : Constant::Units::J,
8422 0 : rack.BasinHeaterConsumption,
8423 : OutputProcessor::TimeStepType::System,
8424 : OutputProcessor::StoreType::Sum,
8425 0 : rack.Name,
8426 : Constant::eResource::Electricity,
8427 : OutputProcessor::Group::Plant,
8428 : OutputProcessor::EndUseCat::Refrigeration,
8429 : rack.EndUseSubcategory);
8430 0 : SetupOutputVariable(state,
8431 : "Refrigeration Air Chiller Compressor Rack Evaporative Condenser Water Volume Flow Rate",
8432 : Constant::Units::m3_s,
8433 0 : rack.EvapWaterConsumpRate,
8434 : OutputProcessor::TimeStepType::System,
8435 : OutputProcessor::StoreType::Average,
8436 0 : rack.Name);
8437 0 : SetupOutputVariable(state,
8438 : "Refrigeration Air Chiller Compressor Rack Evaporative Condenser Water Volume",
8439 : Constant::Units::m3,
8440 0 : rack.EvapWaterConsumption,
8441 : OutputProcessor::TimeStepType::System,
8442 : OutputProcessor::StoreType::Sum,
8443 0 : rack.Name,
8444 : Constant::eResource::Water,
8445 : OutputProcessor::Group::Plant,
8446 : OutputProcessor::EndUseCat::Refrigeration,
8447 : rack.EndUseSubcategory);
8448 : } // Evap condenser
8449 :
8450 0 : if (rack.HeatRejectionLocation == HeatRejLocation::Zone) {
8451 0 : SetupOutputVariable(state,
8452 : "Refrigeration Air Chiller Compressor Rack Zone Sensible Heating Rate",
8453 : Constant::Units::W,
8454 0 : rack.SensZoneCreditHeatRate,
8455 : OutputProcessor::TimeStepType::System,
8456 : OutputProcessor::StoreType::Average,
8457 0 : rack.Name);
8458 0 : SetupOutputVariable(state,
8459 : "Refrigeration Air Chiller Compressor Rack Zone Sensible Heating Energy",
8460 : Constant::Units::J,
8461 0 : rack.SensZoneCreditHeat,
8462 : OutputProcessor::TimeStepType::System,
8463 : OutputProcessor::StoreType::Sum,
8464 0 : rack.Name);
8465 :
8466 0 : SetupOutputVariable(state,
8467 : "Refrigeration Air Chiller Compressor Rack Return Air Sensible Heating Rate",
8468 : Constant::Units::W,
8469 0 : rack.SensHVACCreditHeatRate,
8470 : OutputProcessor::TimeStepType::System,
8471 : OutputProcessor::StoreType::Average,
8472 0 : rack.Name);
8473 0 : SetupOutputVariable(state,
8474 : "Refrigeration Air Chiller Compressor Rack Return Air Sensible Heating Energy",
8475 : Constant::Units::J,
8476 0 : rack.SensHVACCreditHeat,
8477 : OutputProcessor::TimeStepType::System,
8478 : OutputProcessor::StoreType::Sum,
8479 0 : rack.Name);
8480 :
8481 : // If CoilFlag is true and Location is Zone, GetRefrigerationInput ensures you must have a Heat Rejection Zone provided already
8482 0 : SetupZoneInternalGain(state,
8483 : rack.HeatRejectionZoneNum,
8484 : rack.Name,
8485 : DataHeatBalance::IntGainType::RefrigerationCompressorRack,
8486 : &rack.SensZoneCreditHeatRate,
8487 : &rack.SensHVACCreditHeatRate);
8488 :
8489 : } // LocationZone
8490 :
8491 : } else { // Rack serves cases and walkins on zone (load) time step
8492 :
8493 122 : SetupOutputVariable(state,
8494 : "Refrigeration Compressor Rack Electricity Rate",
8495 : Constant::Units::W,
8496 61 : rack.RackCompressorPower,
8497 : OutputProcessor::TimeStepType::Zone,
8498 : OutputProcessor::StoreType::Average,
8499 61 : rack.Name);
8500 122 : SetupOutputVariable(state,
8501 : "Refrigeration Compressor Rack Electricity Energy",
8502 : Constant::Units::J,
8503 61 : rack.RackElecConsumption,
8504 : OutputProcessor::TimeStepType::Zone,
8505 : OutputProcessor::StoreType::Sum,
8506 61 : rack.Name,
8507 : Constant::eResource::Electricity,
8508 : OutputProcessor::Group::Plant,
8509 : OutputProcessor::EndUseCat::Refrigeration,
8510 : rack.EndUseSubcategory);
8511 122 : SetupOutputVariable(state,
8512 : "Refrigeration Compressor Rack Condenser Fan Electricity Rate",
8513 : Constant::Units::W,
8514 61 : rack.ActualCondenserFanPower,
8515 : OutputProcessor::TimeStepType::Zone,
8516 : OutputProcessor::StoreType::Average,
8517 61 : rack.Name);
8518 122 : SetupOutputVariable(state,
8519 : "Refrigeration Compressor Rack Condenser Fan Electricity Energy",
8520 : Constant::Units::J,
8521 61 : rack.CondenserFanConsumption,
8522 : OutputProcessor::TimeStepType::Zone,
8523 : OutputProcessor::StoreType::Sum,
8524 61 : rack.Name,
8525 : Constant::eResource::Electricity,
8526 : OutputProcessor::Group::Plant,
8527 : OutputProcessor::EndUseCat::Refrigeration,
8528 : rack.EndUseSubcategory);
8529 122 : SetupOutputVariable(state,
8530 : "Refrigeration Compressor Rack Total Heat Transfer Rate",
8531 : Constant::Units::W,
8532 61 : rack.RackCapacity,
8533 : OutputProcessor::TimeStepType::Zone,
8534 : OutputProcessor::StoreType::Average,
8535 61 : rack.Name);
8536 122 : SetupOutputVariable(state,
8537 : "Refrigeration Compressor Rack Total Heat Transfer Energy",
8538 : Constant::Units::J,
8539 61 : rack.RackCoolingEnergy,
8540 : OutputProcessor::TimeStepType::Zone,
8541 : OutputProcessor::StoreType::Sum,
8542 61 : rack.Name,
8543 : Constant::eResource::EnergyTransfer,
8544 : OutputProcessor::Group::Plant,
8545 : OutputProcessor::EndUseCat::Refrigeration,
8546 : rack.EndUseSubcategory);
8547 122 : SetupOutputVariable(state,
8548 : "Refrigeration Compressor Rack COP",
8549 : Constant::Units::W_W,
8550 61 : rack.RackCompressorCOP,
8551 : OutputProcessor::TimeStepType::Zone,
8552 : OutputProcessor::StoreType::Average,
8553 61 : rack.Name);
8554 :
8555 61 : if (rack.CondenserType == DataHeatBalance::RefrigCondenserType::Evap) {
8556 4 : SetupOutputVariable(state,
8557 : "Refrigeration Compressor Rack Evaporative Condenser Pump Electricity Rate",
8558 : Constant::Units::W,
8559 2 : rack.ActualEvapPumpPower,
8560 : OutputProcessor::TimeStepType::Zone,
8561 : OutputProcessor::StoreType::Average,
8562 2 : rack.Name);
8563 4 : SetupOutputVariable(state,
8564 : "Refrigeration Compressor Rack Evaporative Condenser Pump Electricity Energy",
8565 : Constant::Units::J,
8566 2 : rack.EvapPumpConsumption,
8567 : OutputProcessor::TimeStepType::Zone,
8568 : OutputProcessor::StoreType::Sum,
8569 2 : rack.Name,
8570 : Constant::eResource::Electricity,
8571 : OutputProcessor::Group::Plant,
8572 : OutputProcessor::EndUseCat::Refrigeration,
8573 : rack.EndUseSubcategory);
8574 4 : SetupOutputVariable(state,
8575 : "Refrigeration Compressor Rack Evaporative Condenser Basin Heater Electricity Rate",
8576 : Constant::Units::W,
8577 2 : rack.BasinHeaterPower,
8578 : OutputProcessor::TimeStepType::Zone,
8579 : OutputProcessor::StoreType::Average,
8580 2 : rack.Name);
8581 4 : SetupOutputVariable(state,
8582 : "Refrigeration Compressor Rack Evaporative Condenser Basin Heater Electricity Energy",
8583 : Constant::Units::J,
8584 2 : rack.BasinHeaterConsumption,
8585 : OutputProcessor::TimeStepType::Zone,
8586 : OutputProcessor::StoreType::Sum,
8587 2 : rack.Name,
8588 : Constant::eResource::Electricity,
8589 : OutputProcessor::Group::Plant,
8590 : OutputProcessor::EndUseCat::Refrigeration,
8591 : rack.EndUseSubcategory);
8592 4 : SetupOutputVariable(state,
8593 : "Refrigeration Compressor Rack Evaporative Condenser Water Volume Flow Rate",
8594 : Constant::Units::m3_s,
8595 2 : rack.EvapWaterConsumpRate,
8596 : OutputProcessor::TimeStepType::Zone,
8597 : OutputProcessor::StoreType::Average,
8598 2 : rack.Name);
8599 4 : SetupOutputVariable(state,
8600 : "Refrigeration Compressor Rack Evaporative Condenser Water Volume",
8601 : Constant::Units::m3,
8602 2 : rack.EvapWaterConsumption,
8603 : OutputProcessor::TimeStepType::Zone,
8604 : OutputProcessor::StoreType::Sum,
8605 2 : rack.Name,
8606 : Constant::eResource::Water,
8607 : OutputProcessor::Group::Plant,
8608 : OutputProcessor::EndUseCat::Refrigeration,
8609 : rack.EndUseSubcategory);
8610 : } // condenser evap
8611 :
8612 61 : if (rack.HeatRejectionLocation == HeatRejLocation::Zone) {
8613 54 : SetupOutputVariable(state,
8614 : "Refrigeration Compressor Rack Zone Sensible Heating Rate",
8615 : Constant::Units::W,
8616 27 : rack.SensZoneCreditHeatRate,
8617 : OutputProcessor::TimeStepType::Zone,
8618 : OutputProcessor::StoreType::Average,
8619 27 : rack.Name);
8620 54 : SetupOutputVariable(state,
8621 : "Refrigeration Compressor Rack Zone Sensible Heating Energy",
8622 : Constant::Units::J,
8623 27 : rack.SensZoneCreditHeat,
8624 : OutputProcessor::TimeStepType::Zone,
8625 : OutputProcessor::StoreType::Sum,
8626 27 : rack.Name);
8627 :
8628 54 : SetupOutputVariable(state,
8629 : "Refrigeration Compressor Rack Return Air Sensible Heating Rate",
8630 : Constant::Units::W,
8631 27 : rack.SensHVACCreditHeatRate,
8632 : OutputProcessor::TimeStepType::Zone,
8633 : OutputProcessor::StoreType::Average,
8634 27 : rack.Name);
8635 54 : SetupOutputVariable(state,
8636 : "Refrigeration Compressor Rack Return Air Sensible Heating Energy",
8637 : Constant::Units::J,
8638 27 : rack.SensHVACCreditHeat,
8639 : OutputProcessor::TimeStepType::Zone,
8640 : OutputProcessor::StoreType::Sum,
8641 27 : rack.Name);
8642 :
8643 : // if Location is Zone, GetRefrigerationInputEither checks that you have at least one load and that either:
8644 : // * You have only cases, and they must be all in the same zone
8645 : // * Or you must have a Heat Rejection Zone provided
8646 27 : int rackZoneNum = -1;
8647 27 : if (rack.HeatRejectionZoneNum > 0) {
8648 0 : rackZoneNum = rack.HeatRejectionZoneNum;
8649 : } else {
8650 27 : rackZoneNum = RefrigCase(rack.CaseNum(1)).ActualZoneNum;
8651 : }
8652 27 : SetupZoneInternalGain(state,
8653 : rackZoneNum,
8654 : rack.Name,
8655 : DataHeatBalance::IntGainType::RefrigerationCompressorRack,
8656 : &rack.SensZoneCreditHeatRate,
8657 : &rack.SensHVACCreditHeatRate);
8658 :
8659 : } // location zone
8660 : } // Serves coils or case/walkin loads
8661 :
8662 61 : if (rack.CondenserType == DataHeatBalance::RefrigCondenserType::Water) { // on HVAC time step no matter what
8663 2 : SetupOutputVariable(state,
8664 : "Refrigeration Compressor Rack Condenser Mass Flow Rate",
8665 : Constant::Units::kg_s,
8666 1 : rack.MassFlowRate,
8667 : OutputProcessor::TimeStepType::System,
8668 : OutputProcessor::StoreType::Average,
8669 1 : rack.Name);
8670 :
8671 2 : SetupOutputVariable(state,
8672 : "Refrigeration Compressor Rack Condenser Heat Transfer Rate",
8673 : Constant::Units::W,
8674 1 : rack.CondLoad,
8675 : OutputProcessor::TimeStepType::System,
8676 : OutputProcessor::StoreType::Average,
8677 1 : rack.Name);
8678 :
8679 2 : SetupOutputVariable(state,
8680 : "Refrigeration Compressor Rack Condenser Heat Transfer Energy",
8681 : Constant::Units::J,
8682 1 : rack.CondEnergy,
8683 : OutputProcessor::TimeStepType::System,
8684 : OutputProcessor::StoreType::Sum,
8685 1 : rack.Name,
8686 : Constant::eResource::EnergyTransfer,
8687 : OutputProcessor::Group::Plant,
8688 : OutputProcessor::EndUseCat::Heating);
8689 :
8690 : } // Condenser cooling water
8691 : } // Refrigerated Racks
8692 : } // NumRefrigeratedRacks > 0
8693 :
8694 801 : if (state.dataRefrigCase->NumRefrigSystems > 0) {
8695 : // CurrentModuleObject='Refrigeration:System'
8696 56 : for (int refrigSysNum = 1; refrigSysNum <= state.dataRefrigCase->NumRefrigSystems; ++refrigSysNum) {
8697 41 : auto &sys = System(refrigSysNum);
8698 41 : if (sys.CoilFlag) { // system serves chillers and is solved on HVAC time step
8699 9 : if (sys.NumStages == 1) {
8700 18 : SetupOutputVariable(state,
8701 : "Refrigeration Air Chiller System Total Compressor Electricity Rate",
8702 : Constant::Units::W,
8703 9 : sys.TotCompPower,
8704 : OutputProcessor::TimeStepType::System,
8705 : OutputProcessor::StoreType::Average,
8706 9 : sys.Name);
8707 18 : SetupOutputVariable(state,
8708 : "Refrigeration Air Chiller System Total Compressor Electricity Energy",
8709 : Constant::Units::J,
8710 9 : sys.TotCompElecConsump,
8711 : OutputProcessor::TimeStepType::System,
8712 : OutputProcessor::StoreType::Sum,
8713 9 : sys.Name);
8714 0 : } else if (sys.NumStages == 2) {
8715 0 : SetupOutputVariable(state,
8716 : "Refrigeration Air Chiller System Total Low Stage Compressor Electricity Rate",
8717 : Constant::Units::W,
8718 0 : sys.TotCompPower,
8719 : OutputProcessor::TimeStepType::System,
8720 : OutputProcessor::StoreType::Average,
8721 0 : sys.Name);
8722 0 : SetupOutputVariable(state,
8723 : "Refrigeration Air Chiller System Total Low Stage Compressor Electricity Energy",
8724 : Constant::Units::J,
8725 0 : sys.TotCompElecConsump,
8726 : OutputProcessor::TimeStepType::System,
8727 : OutputProcessor::StoreType::Sum,
8728 0 : sys.Name);
8729 0 : SetupOutputVariable(state,
8730 : "Refrigeration Air Chiller System Total High Stage Compressor Electricity Rate",
8731 : Constant::Units::W,
8732 0 : sys.TotHiStageCompPower,
8733 : OutputProcessor::TimeStepType::System,
8734 : OutputProcessor::StoreType::Average,
8735 0 : sys.Name);
8736 0 : SetupOutputVariable(state,
8737 : "Refrigeration Air Chiller System Total High Stage Compressor Electricity Energy",
8738 : Constant::Units::J,
8739 0 : sys.TotHiStageCompElecConsump,
8740 : OutputProcessor::TimeStepType::System,
8741 : OutputProcessor::StoreType::Sum,
8742 0 : sys.Name);
8743 0 : SetupOutputVariable(state,
8744 : "Refrigeration Air Chiller System Total Low and High Stage Compressor Electricity Energy",
8745 : Constant::Units::J,
8746 0 : sys.TotCompElecConsumpTwoStage,
8747 : OutputProcessor::TimeStepType::System,
8748 : OutputProcessor::StoreType::Sum,
8749 0 : sys.Name);
8750 : } // NumStages
8751 18 : SetupOutputVariable(state,
8752 : "Refrigeration Air Chiller System Average Compressor COP",
8753 : Constant::Units::W_W,
8754 9 : sys.AverageCompressorCOP,
8755 : OutputProcessor::TimeStepType::System,
8756 : OutputProcessor::StoreType::Average,
8757 9 : sys.Name);
8758 18 : SetupOutputVariable(state,
8759 : "Refrigeration Air Chiller System Total Air Chiller Heat Transfer Rate",
8760 : Constant::Units::W,
8761 9 : sys.TotalCoolingLoad,
8762 : OutputProcessor::TimeStepType::System,
8763 : OutputProcessor::StoreType::Average,
8764 9 : sys.Name);
8765 18 : SetupOutputVariable(state,
8766 : "Refrigeration Air Chiller System Total Case and Walk In Heat Transfer Energy",
8767 : Constant::Units::J,
8768 9 : sys.TotalCoolingEnergy,
8769 : OutputProcessor::TimeStepType::System,
8770 : OutputProcessor::StoreType::Sum,
8771 9 : sys.Name);
8772 18 : SetupOutputVariable(state,
8773 : "Refrigeration Air Chiller System Total Transferred Load Heat Transfer Rate",
8774 : Constant::Units::W,
8775 9 : sys.TotTransferLoad,
8776 : OutputProcessor::TimeStepType::System,
8777 : OutputProcessor::StoreType::Average,
8778 9 : sys.Name);
8779 18 : SetupOutputVariable(state,
8780 : "Refrigeration Air Chiller System Total Transferred Load Heat Transfer Energy",
8781 : Constant::Units::J,
8782 9 : sys.TotTransferEnergy,
8783 : OutputProcessor::TimeStepType::System,
8784 : OutputProcessor::StoreType::Sum,
8785 9 : sys.Name);
8786 18 : SetupOutputVariable(state,
8787 : "Refrigeration Air Chiller System Total Suction Pipe Heat Gain Rate",
8788 : Constant::Units::W,
8789 9 : sys.PipeHeatLoad,
8790 : OutputProcessor::TimeStepType::System,
8791 : OutputProcessor::StoreType::Average,
8792 9 : sys.Name);
8793 18 : SetupOutputVariable(state,
8794 : "Refrigeration Air Chiller System Total Suction Pipe Heat Gain Energy",
8795 : Constant::Units::J,
8796 9 : sys.PipeHeatEnergy,
8797 : OutputProcessor::TimeStepType::System,
8798 : OutputProcessor::StoreType::Sum,
8799 9 : sys.Name);
8800 9 : if (sys.NumStages == 1) {
8801 18 : SetupOutputVariable(state,
8802 : "Refrigeration Air Chiller System Total Compressor Heat Transfer Rate",
8803 : Constant::Units::W,
8804 9 : sys.TotCompCapacity,
8805 : OutputProcessor::TimeStepType::System,
8806 : OutputProcessor::StoreType::Average,
8807 9 : sys.Name);
8808 18 : SetupOutputVariable(state,
8809 : "Refrigeration Air Chiller System Total Compressor Heat Transfer Energy",
8810 : Constant::Units::J,
8811 9 : sys.TotCompCoolingEnergy,
8812 : OutputProcessor::TimeStepType::System,
8813 : OutputProcessor::StoreType::Sum,
8814 9 : sys.Name); // indiv compressors go to meter, not system sum
8815 0 : } else if (sys.NumStages == 2) {
8816 0 : SetupOutputVariable(state,
8817 : "Refrigeration Air Chiller System Total Low Stage Compressor Heat Transfer Rate",
8818 : Constant::Units::W,
8819 0 : sys.TotCompCapacity,
8820 : OutputProcessor::TimeStepType::System,
8821 : OutputProcessor::StoreType::Average,
8822 0 : sys.Name);
8823 0 : SetupOutputVariable(state,
8824 : "Refrigeration Air Chiller System Total Low Stage Compressor Heat Transfer Energy",
8825 : Constant::Units::J,
8826 0 : sys.TotCompCoolingEnergy,
8827 : OutputProcessor::TimeStepType::System,
8828 : OutputProcessor::StoreType::Sum,
8829 0 : sys.Name); // indiv compressors go to meter, not system sum
8830 0 : SetupOutputVariable(state,
8831 : "Refrigeration Air Chiller System Total High Stage Compressor Heat Transfer Rate",
8832 : Constant::Units::W,
8833 0 : sys.TotHiStageCompCapacity,
8834 : OutputProcessor::TimeStepType::System,
8835 : OutputProcessor::StoreType::Average,
8836 0 : sys.Name);
8837 0 : SetupOutputVariable(state,
8838 : "Refrigeration Air Chiller System Total High Stage Compressor Heat Transfer Energy",
8839 : Constant::Units::J,
8840 0 : sys.TotHiStageCompCoolingEnergy,
8841 : OutputProcessor::TimeStepType::System,
8842 : OutputProcessor::StoreType::Sum,
8843 0 : sys.Name); // indiv compressors go to meter, not system sum
8844 : } // NumStages
8845 18 : SetupOutputVariable(state,
8846 : "Refrigeration Air Chiller System Net Rejected Heat Transfer Rate",
8847 : Constant::Units::W,
8848 9 : sys.NetHeatRejectLoad,
8849 : OutputProcessor::TimeStepType::System,
8850 : OutputProcessor::StoreType::Average,
8851 9 : sys.Name);
8852 18 : SetupOutputVariable(state,
8853 : "Refrigeration Air Chiller System Net Rejected Heat Transfer Energy",
8854 : Constant::Units::J,
8855 9 : sys.NetHeatRejectEnergy,
8856 : OutputProcessor::TimeStepType::System,
8857 : OutputProcessor::StoreType::Sum,
8858 9 : sys.Name);
8859 18 : SetupOutputVariable(state,
8860 : "Refrigeration Air Chiller System Estimated Refrigerant Inventory Mass",
8861 : Constant::Units::kg,
8862 9 : sys.RefInventory,
8863 : OutputProcessor::TimeStepType::System,
8864 : OutputProcessor::StoreType::Average,
8865 9 : sys.Name);
8866 9 : if (sys.NumStages == 1) {
8867 18 : SetupOutputVariable(state,
8868 : "Refrigeration Air Chiller System Estimated Refrigerant Mass Flow Rate",
8869 : Constant::Units::kg_s,
8870 9 : sys.RefMassFlowComps,
8871 : OutputProcessor::TimeStepType::System,
8872 : OutputProcessor::StoreType::Average,
8873 9 : sys.Name);
8874 0 : } else if (sys.NumStages == 2) {
8875 0 : SetupOutputVariable(state,
8876 : "Refrigeration Air Chiller System Estimated Low Stage Refrigerant Mass Flow Rate",
8877 : Constant::Units::kg_s,
8878 0 : sys.RefMassFlowComps,
8879 : OutputProcessor::TimeStepType::System,
8880 : OutputProcessor::StoreType::Average,
8881 0 : sys.Name);
8882 0 : SetupOutputVariable(state,
8883 : "Refrigeration Air Chiller System Estimated High Stage Refrigerant Mass Flow Rate",
8884 : Constant::Units::kg_s,
8885 0 : sys.RefMassFlowHiStageComps,
8886 : OutputProcessor::TimeStepType::System,
8887 : OutputProcessor::StoreType::Average,
8888 0 : sys.Name);
8889 : } // NumStages
8890 9 : if (sys.NumStages == 2) {
8891 0 : SetupOutputVariable(state,
8892 : "Refrigeration Air Chiller System Intercooler Temperature",
8893 : Constant::Units::C,
8894 0 : sys.TIntercooler,
8895 : OutputProcessor::TimeStepType::System,
8896 : OutputProcessor::StoreType::Average,
8897 0 : sys.Name);
8898 0 : SetupOutputVariable(state,
8899 : "Refrigeration Air Chiller System Intercooler Pressure",
8900 : Constant::Units::Pa,
8901 0 : sys.PIntercooler,
8902 : OutputProcessor::TimeStepType::System,
8903 : OutputProcessor::StoreType::Average,
8904 0 : sys.Name);
8905 : }
8906 18 : SetupOutputVariable(state,
8907 : "Refrigeration Air Chiller System Condensing Temperature",
8908 : Constant::Units::C,
8909 9 : sys.TCondense,
8910 : OutputProcessor::TimeStepType::System,
8911 : OutputProcessor::StoreType::Average,
8912 9 : sys.Name);
8913 18 : SetupOutputVariable(state,
8914 : "Refrigeration Air Chiller System Evaporating Temperature",
8915 : Constant::Units::C,
8916 9 : sys.TEvapNeeded,
8917 : OutputProcessor::TimeStepType::System,
8918 : OutputProcessor::StoreType::Average,
8919 9 : sys.Name);
8920 18 : SetupOutputVariable(state,
8921 : "Refrigeration Air Chiller System Suction Temperature",
8922 : Constant::Units::C,
8923 9 : sys.TCompIn,
8924 : OutputProcessor::TimeStepType::System,
8925 : OutputProcessor::StoreType::Average,
8926 9 : sys.Name);
8927 18 : SetupOutputVariable(state,
8928 : "Refrigeration Air Chiller System TXV Liquid Temperature",
8929 : Constant::Units::C,
8930 9 : sys.TLiqInActual,
8931 : OutputProcessor::TimeStepType::System,
8932 : OutputProcessor::StoreType::Average,
8933 9 : sys.Name);
8934 18 : SetupOutputVariable(state,
8935 : "Refrigeration Air Chiller System Liquid Suction Subcooler Heat Transfer Rate",
8936 : Constant::Units::W,
8937 9 : sys.LSHXTrans,
8938 : OutputProcessor::TimeStepType::System,
8939 : OutputProcessor::StoreType::Average,
8940 9 : sys.Name);
8941 18 : SetupOutputVariable(state,
8942 : "Refrigeration Air Chiller System Liquid Suction Subcooler Heat Transfer Energy",
8943 : Constant::Units::J,
8944 9 : sys.LSHXTransEnergy,
8945 : OutputProcessor::TimeStepType::System,
8946 : OutputProcessor::StoreType::Sum,
8947 9 : sys.Name);
8948 : } else { // NOT System(SysNum)%CoilFlag, so serving loads on zone timestep
8949 32 : if (sys.NumStages == 1) {
8950 60 : SetupOutputVariable(state,
8951 : "Refrigeration System Total Compressor Electricity Rate",
8952 : Constant::Units::W,
8953 30 : sys.TotCompPower,
8954 : OutputProcessor::TimeStepType::Zone,
8955 : OutputProcessor::StoreType::Average,
8956 30 : sys.Name);
8957 60 : SetupOutputVariable(state,
8958 : "Refrigeration System Total Compressor Electricity Energy",
8959 : Constant::Units::J,
8960 30 : sys.TotCompElecConsump,
8961 : OutputProcessor::TimeStepType::Zone,
8962 : OutputProcessor::StoreType::Sum,
8963 30 : sys.Name);
8964 2 : } else if (sys.NumStages == 2) {
8965 4 : SetupOutputVariable(state,
8966 : "Refrigeration System Total Low Stage Compressor Electricity Rate",
8967 : Constant::Units::W,
8968 2 : sys.TotCompPower,
8969 : OutputProcessor::TimeStepType::Zone,
8970 : OutputProcessor::StoreType::Average,
8971 2 : sys.Name);
8972 4 : SetupOutputVariable(state,
8973 : "Refrigeration System Total Low Stage Compressor Electricity Energy",
8974 : Constant::Units::J,
8975 2 : sys.TotCompElecConsump,
8976 : OutputProcessor::TimeStepType::Zone,
8977 : OutputProcessor::StoreType::Sum,
8978 2 : sys.Name);
8979 4 : SetupOutputVariable(state,
8980 : "Refrigeration System Total High Stage Compressor Electricity Rate",
8981 : Constant::Units::W,
8982 2 : sys.TotHiStageCompPower,
8983 : OutputProcessor::TimeStepType::Zone,
8984 : OutputProcessor::StoreType::Average,
8985 2 : sys.Name);
8986 4 : SetupOutputVariable(state,
8987 : "Refrigeration System Total High Stage Compressor Electricity Energy",
8988 : Constant::Units::J,
8989 2 : sys.TotHiStageCompElecConsump,
8990 : OutputProcessor::TimeStepType::Zone,
8991 : OutputProcessor::StoreType::Sum,
8992 2 : sys.Name);
8993 4 : SetupOutputVariable(state,
8994 : "Refrigeration System Total Low and High Stage Compressor Electricity Energy",
8995 : Constant::Units::J,
8996 2 : sys.TotCompElecConsumpTwoStage,
8997 : OutputProcessor::TimeStepType::Zone,
8998 : OutputProcessor::StoreType::Sum,
8999 2 : sys.Name);
9000 : } // NumStages
9001 64 : SetupOutputVariable(state,
9002 : "Refrigeration System Average Compressor COP",
9003 : Constant::Units::W_W,
9004 32 : sys.AverageCompressorCOP,
9005 : OutputProcessor::TimeStepType::Zone,
9006 : OutputProcessor::StoreType::Average,
9007 32 : sys.Name);
9008 64 : SetupOutputVariable(state,
9009 : "Refrigeration System Total Cases and Walk Ins Heat Transfer Rate",
9010 : Constant::Units::W,
9011 32 : sys.TotalCoolingLoad,
9012 : OutputProcessor::TimeStepType::Zone,
9013 : OutputProcessor::StoreType::Average,
9014 32 : sys.Name);
9015 64 : SetupOutputVariable(state,
9016 : "Refrigeration System Total Cases and Walk Ins Heat Transfer Energy",
9017 : Constant::Units::J,
9018 32 : sys.TotalCoolingEnergy,
9019 : OutputProcessor::TimeStepType::Zone,
9020 : OutputProcessor::StoreType::Sum,
9021 32 : sys.Name);
9022 64 : SetupOutputVariable(state,
9023 : "Refrigeration System Total Transferred Load Heat Transfer Rate",
9024 : Constant::Units::W,
9025 32 : sys.TotTransferLoad,
9026 : OutputProcessor::TimeStepType::Zone,
9027 : OutputProcessor::StoreType::Average,
9028 32 : sys.Name);
9029 64 : SetupOutputVariable(state,
9030 : "Refrigeration System Total Transferred Load Heat Transfer Energy",
9031 : Constant::Units::J,
9032 32 : sys.TotTransferEnergy,
9033 : OutputProcessor::TimeStepType::Zone,
9034 : OutputProcessor::StoreType::Sum,
9035 32 : sys.Name);
9036 64 : SetupOutputVariable(state,
9037 : "Refrigeration System Total Suction Pipe Heat Gain Rate",
9038 : Constant::Units::W,
9039 32 : sys.PipeHeatLoad,
9040 : OutputProcessor::TimeStepType::Zone,
9041 : OutputProcessor::StoreType::Average,
9042 32 : sys.Name);
9043 64 : SetupOutputVariable(state,
9044 : "Refrigeration System Total Suction Pipe Heat Gain Energy",
9045 : Constant::Units::J,
9046 32 : sys.PipeHeatEnergy,
9047 : OutputProcessor::TimeStepType::Zone,
9048 : OutputProcessor::StoreType::Sum,
9049 32 : sys.Name);
9050 32 : if (sys.NumStages == 1) {
9051 60 : SetupOutputVariable(state,
9052 : "Refrigeration System Total Compressor Heat Transfer Rate",
9053 : Constant::Units::W,
9054 30 : sys.TotCompCapacity,
9055 : OutputProcessor::TimeStepType::Zone,
9056 : OutputProcessor::StoreType::Average,
9057 30 : sys.Name);
9058 60 : SetupOutputVariable(state,
9059 : "Refrigeration System Total Compressor Heat Transfer Energy",
9060 : Constant::Units::J,
9061 30 : sys.TotCompCoolingEnergy,
9062 : OutputProcessor::TimeStepType::Zone,
9063 : OutputProcessor::StoreType::Sum,
9064 30 : sys.Name); // indiv compressors go to meter, not system sum
9065 2 : } else if (sys.NumStages == 2) {
9066 4 : SetupOutputVariable(state,
9067 : "Refrigeration System Total Low Stage Compressor Heat Transfer Rate",
9068 : Constant::Units::W,
9069 2 : sys.TotCompCapacity,
9070 : OutputProcessor::TimeStepType::Zone,
9071 : OutputProcessor::StoreType::Average,
9072 2 : sys.Name);
9073 4 : SetupOutputVariable(state,
9074 : "Refrigeration System Total Low Stage Compressor Heat Transfer Energy",
9075 : Constant::Units::J,
9076 2 : sys.TotCompCoolingEnergy,
9077 : OutputProcessor::TimeStepType::Zone,
9078 : OutputProcessor::StoreType::Sum,
9079 2 : sys.Name); // indiv compressors go to meter, not system sum
9080 4 : SetupOutputVariable(state,
9081 : "Refrigeration System Total High Stage Compressor Heat Transfer Rate",
9082 : Constant::Units::W,
9083 2 : sys.TotHiStageCompCapacity,
9084 : OutputProcessor::TimeStepType::Zone,
9085 : OutputProcessor::StoreType::Average,
9086 2 : sys.Name);
9087 4 : SetupOutputVariable(state,
9088 : "Refrigeration System Total High Stage Compressor Heat Transfer Energy",
9089 : Constant::Units::J,
9090 2 : sys.TotHiStageCompCoolingEnergy,
9091 : OutputProcessor::TimeStepType::Zone,
9092 : OutputProcessor::StoreType::Sum,
9093 2 : sys.Name); // indiv compressors go to meter, not system sum
9094 : } // NumStages
9095 64 : SetupOutputVariable(state,
9096 : "Refrigeration System Net Rejected Heat Transfer Rate",
9097 : Constant::Units::W,
9098 32 : sys.NetHeatRejectLoad,
9099 : OutputProcessor::TimeStepType::Zone,
9100 : OutputProcessor::StoreType::Average,
9101 32 : sys.Name);
9102 64 : SetupOutputVariable(state,
9103 : "Refrigeration System Net Rejected Heat Transfer Energy",
9104 : Constant::Units::J,
9105 32 : sys.NetHeatRejectEnergy,
9106 : OutputProcessor::TimeStepType::Zone,
9107 : OutputProcessor::StoreType::Sum,
9108 32 : sys.Name);
9109 64 : SetupOutputVariable(state,
9110 : "Refrigeration System Estimated Refrigerant Inventory Mass",
9111 : Constant::Units::kg,
9112 32 : sys.RefInventory,
9113 : OutputProcessor::TimeStepType::Zone,
9114 : OutputProcessor::StoreType::Average,
9115 32 : sys.Name);
9116 32 : if (sys.NumStages == 1) {
9117 60 : SetupOutputVariable(state,
9118 : "Refrigeration System Estimated Refrigerant Mass Flow Rate",
9119 : Constant::Units::kg_s,
9120 30 : sys.RefMassFlowComps,
9121 : OutputProcessor::TimeStepType::Zone,
9122 : OutputProcessor::StoreType::Average,
9123 30 : sys.Name);
9124 2 : } else if (sys.NumStages == 2) {
9125 4 : SetupOutputVariable(state,
9126 : "Refrigeration System Estimated Low Stage Refrigerant Mass Flow Rate",
9127 : Constant::Units::kg_s,
9128 2 : sys.RefMassFlowComps,
9129 : OutputProcessor::TimeStepType::Zone,
9130 : OutputProcessor::StoreType::Average,
9131 2 : sys.Name);
9132 4 : SetupOutputVariable(state,
9133 : "Refrigeration System Estimated High Stage Refrigerant Mass Flow Rate",
9134 : Constant::Units::kg_s,
9135 2 : sys.RefMassFlowHiStageComps,
9136 : OutputProcessor::TimeStepType::Zone,
9137 : OutputProcessor::StoreType::Average,
9138 2 : sys.Name);
9139 : } // NumStages
9140 32 : if (sys.NumStages == 2) {
9141 4 : SetupOutputVariable(state,
9142 : "Refrigeration System Intercooler Temperature",
9143 : Constant::Units::C,
9144 2 : sys.TIntercooler,
9145 : OutputProcessor::TimeStepType::Zone,
9146 : OutputProcessor::StoreType::Average,
9147 2 : sys.Name);
9148 4 : SetupOutputVariable(state,
9149 : "Refrigeration System Intercooler Pressure",
9150 : Constant::Units::Pa,
9151 2 : sys.PIntercooler,
9152 : OutputProcessor::TimeStepType::Zone,
9153 : OutputProcessor::StoreType::Average,
9154 2 : sys.Name);
9155 : }
9156 64 : SetupOutputVariable(state,
9157 : "Refrigeration System Condensing Temperature",
9158 : Constant::Units::C,
9159 32 : sys.TCondense,
9160 : OutputProcessor::TimeStepType::Zone,
9161 : OutputProcessor::StoreType::Average,
9162 32 : sys.Name);
9163 64 : SetupOutputVariable(state,
9164 : "Refrigeration System Evaporating Temperature",
9165 : Constant::Units::C,
9166 32 : sys.TEvapNeeded,
9167 : OutputProcessor::TimeStepType::Zone,
9168 : OutputProcessor::StoreType::Average,
9169 32 : sys.Name);
9170 64 : SetupOutputVariable(state,
9171 : "Refrigeration System Suction Pipe Suction Temperature",
9172 : Constant::Units::C,
9173 32 : sys.TCompIn,
9174 : OutputProcessor::TimeStepType::Zone,
9175 : OutputProcessor::StoreType::Average,
9176 32 : sys.Name);
9177 64 : SetupOutputVariable(state,
9178 : "Refrigeration System Thermostatic Expansion Valve Liquid Temperature",
9179 : Constant::Units::C,
9180 32 : sys.TLiqInActual,
9181 : OutputProcessor::TimeStepType::Zone,
9182 : OutputProcessor::StoreType::Average,
9183 32 : sys.Name);
9184 64 : SetupOutputVariable(state,
9185 : "Refrigeration System Liquid Suction Subcooler Heat Transfer Rate",
9186 : Constant::Units::W,
9187 32 : sys.LSHXTrans,
9188 : OutputProcessor::TimeStepType::Zone,
9189 : OutputProcessor::StoreType::Average,
9190 32 : sys.Name);
9191 64 : SetupOutputVariable(state,
9192 : "Refrigeration System Liquid Suction Subcooler Heat Transfer Energy",
9193 : Constant::Units::J,
9194 32 : sys.LSHXTransEnergy,
9195 : OutputProcessor::TimeStepType::Zone,
9196 : OutputProcessor::StoreType::Sum,
9197 32 : sys.Name);
9198 : } // System(coilflag)
9199 :
9200 41 : if (sys.SystemRejectHeatToZone) {
9201 3 : if (Condenser(sys.CondenserNum(1)).InletAirZoneNum > 0) {
9202 3 : SetupZoneInternalGain(state,
9203 3 : Condenser(sys.CondenserNum(1)).InletAirZoneNum,
9204 : sys.Name,
9205 : DataHeatBalance::IntGainType::RefrigerationSystemAirCooledCondenser,
9206 : &sys.NetHeatRejectLoad);
9207 : }
9208 :
9209 3 : if (sys.SuctionPipeActualZoneNum > 0) {
9210 0 : SetupZoneInternalGain(state,
9211 : sys.SuctionPipeActualZoneNum,
9212 : sys.Name,
9213 : DataHeatBalance::IntGainType::RefrigerationSystemSuctionPipe,
9214 : &sys.PipeHeatLoad);
9215 : }
9216 : }
9217 : } // numrefrigsystems
9218 :
9219 : // Report Compressor ENERGY here, not on system level for meters.
9220 191 : for (int compNum = 1; compNum <= state.dataRefrigCase->NumSimulationCompressors; ++compNum) {
9221 176 : auto &comp = Compressor(compNum);
9222 : // CurrentModuleObject='Refrigeration:Compressor'
9223 176 : if (comp.NumSysAttach == 1) { // only set up reports for compressors that are used once and only once
9224 176 : if (comp.CoilFlag) { // Compressor serving system with chillers on HVAC time step
9225 142 : SetupOutputVariable(state,
9226 : "Refrigeration Air Chiller System Compressor Electricity Rate",
9227 : Constant::Units::W,
9228 71 : comp.Power,
9229 : OutputProcessor::TimeStepType::System,
9230 : OutputProcessor::StoreType::Average,
9231 71 : comp.Name);
9232 142 : SetupOutputVariable(state,
9233 : "Refrigeration Air Chiller System Compressor Electricity Energy",
9234 : Constant::Units::J,
9235 71 : comp.ElecConsumption,
9236 : OutputProcessor::TimeStepType::System,
9237 : OutputProcessor::StoreType::Sum,
9238 71 : comp.Name,
9239 : Constant::eResource::Electricity,
9240 : OutputProcessor::Group::Plant,
9241 : OutputProcessor::EndUseCat::Refrigeration,
9242 : comp.EndUseSubcategory);
9243 142 : SetupOutputVariable(state,
9244 : "Refrigeration Air Chiller System Compressor Heat Transfer Rate",
9245 : Constant::Units::W,
9246 71 : comp.Capacity,
9247 : OutputProcessor::TimeStepType::System,
9248 : OutputProcessor::StoreType::Average,
9249 71 : comp.Name);
9250 142 : SetupOutputVariable(state,
9251 : "Refrigeration Air Chiller System Compressor Heat Transfer Energy",
9252 : Constant::Units::J,
9253 71 : comp.CoolingEnergy,
9254 : OutputProcessor::TimeStepType::System,
9255 : OutputProcessor::StoreType::Sum,
9256 71 : comp.Name);
9257 142 : SetupOutputVariable(state,
9258 : "Refrigeration Air Chiller System Compressor Runtime Fraction",
9259 : Constant::Units::None,
9260 71 : comp.LoadFactor,
9261 : OutputProcessor::TimeStepType::System,
9262 : OutputProcessor::StoreType::Average,
9263 71 : comp.Name);
9264 : } else { // serve cases/walkins on zone time step
9265 210 : SetupOutputVariable(state,
9266 : "Refrigeration Compressor Electricity Rate",
9267 : Constant::Units::W,
9268 105 : comp.Power,
9269 : OutputProcessor::TimeStepType::Zone,
9270 : OutputProcessor::StoreType::Average,
9271 105 : comp.Name);
9272 210 : SetupOutputVariable(state,
9273 : "Refrigeration Compressor Electricity Energy",
9274 : Constant::Units::J,
9275 105 : comp.ElecConsumption,
9276 : OutputProcessor::TimeStepType::Zone,
9277 : OutputProcessor::StoreType::Sum,
9278 105 : comp.Name,
9279 : Constant::eResource::Electricity,
9280 : OutputProcessor::Group::Plant,
9281 : OutputProcessor::EndUseCat::Refrigeration,
9282 : comp.EndUseSubcategory);
9283 210 : SetupOutputVariable(state,
9284 : "Refrigeration Compressor Heat Transfer Rate",
9285 : Constant::Units::W,
9286 105 : comp.Capacity,
9287 : OutputProcessor::TimeStepType::Zone,
9288 : OutputProcessor::StoreType::Average,
9289 105 : comp.Name);
9290 210 : SetupOutputVariable(state,
9291 : "Refrigeration Compressor Heat Transfer Energy",
9292 : Constant::Units::J,
9293 105 : comp.CoolingEnergy,
9294 : OutputProcessor::TimeStepType::Zone,
9295 : OutputProcessor::StoreType::Sum,
9296 105 : comp.Name);
9297 210 : SetupOutputVariable(state,
9298 : "Refrigeration Compressor Runtime Fraction",
9299 : Constant::Units::None,
9300 105 : comp.LoadFactor,
9301 : OutputProcessor::TimeStepType::Zone,
9302 : OutputProcessor::StoreType::Average,
9303 105 : comp.Name);
9304 : } // Serve coils on HVAC time step or cases/walkins on Zone time step
9305 : } // NumSysAttach
9306 : } // CompNum on NumSimulationCompressors
9307 :
9308 : // Report Variables for Refrigeration Condensers
9309 54 : for (int condNum = 1; condNum <= state.dataRefrigCase->NumRefrigCondensers; ++condNum) {
9310 39 : auto &cond = Condenser(condNum);
9311 : // CurrentModuleObject='Refrigeration:Condenser:*'
9312 39 : if (cond.CoilFlag) { // Condenser serving system with chillers on HVAC time step
9313 18 : SetupOutputVariable(state,
9314 : "Refrigeration Air Chiller System Condenser Heat Transfer Rate",
9315 : Constant::Units::W,
9316 9 : cond.CondLoad,
9317 : OutputProcessor::TimeStepType::System,
9318 : OutputProcessor::StoreType::Average,
9319 9 : cond.Name);
9320 18 : SetupOutputVariable(state,
9321 : "Refrigeration Air Chiller System Condenser Heat Transfer Energy",
9322 : Constant::Units::J,
9323 9 : cond.CondEnergy,
9324 : OutputProcessor::TimeStepType::System,
9325 : OutputProcessor::StoreType::Sum,
9326 9 : cond.Name);
9327 :
9328 9 : if (cond.CondenserType != DataHeatBalance::RefrigCondenserType::Cascade) {
9329 18 : SetupOutputVariable(state,
9330 : "Refrigeration Air Chiller System Condenser Total Recovered Heat Transfer Rate",
9331 : Constant::Units::W,
9332 9 : cond.TotalHeatRecoveredLoad,
9333 : OutputProcessor::TimeStepType::System,
9334 : OutputProcessor::StoreType::Average,
9335 9 : cond.Name);
9336 18 : SetupOutputVariable(state,
9337 : "Refrigeration Air Chiller System Condenser Total Recovered Heat Transfer Energy",
9338 : Constant::Units::J,
9339 9 : cond.TotalHeatRecoveredEnergy,
9340 : OutputProcessor::TimeStepType::System,
9341 : OutputProcessor::StoreType::Sum,
9342 9 : cond.Name);
9343 18 : SetupOutputVariable(state,
9344 : "Refrigeration Air Chiller System Condenser Non Refrigeration Recovered Heat Transfer Rate",
9345 : Constant::Units::W,
9346 9 : cond.ExternalHeatRecoveredLoad,
9347 : OutputProcessor::TimeStepType::System,
9348 : OutputProcessor::StoreType::Average,
9349 9 : cond.Name);
9350 18 : SetupOutputVariable(state,
9351 : "Refrigeration Air Chiller System Condenser Non Refrigeration Recovered Heat Transfer Energy",
9352 : Constant::Units::J,
9353 9 : cond.ExternalEnergyRecovered,
9354 : OutputProcessor::TimeStepType::System,
9355 : OutputProcessor::StoreType::Sum,
9356 9 : cond.Name);
9357 18 : SetupOutputVariable(state,
9358 : "Refrigeration Air Chiller System Condenser Defrost Recovered Heat Transfer Rate",
9359 : Constant::Units::W,
9360 9 : cond.InternalHeatRecoveredLoad,
9361 : OutputProcessor::TimeStepType::System,
9362 : OutputProcessor::StoreType::Average,
9363 9 : cond.Name);
9364 18 : SetupOutputVariable(state,
9365 : "Refrigeration Air Chiller System Condenser Defrost Recovered Heat Transfer Energy",
9366 : Constant::Units::J,
9367 9 : cond.InternalEnergyRecovered,
9368 : OutputProcessor::TimeStepType::System,
9369 : OutputProcessor::StoreType::Sum,
9370 9 : cond.Name);
9371 : } // not cascade because recovered energy on cascade systems passed up to higher temperature system
9372 :
9373 9 : if (cond.CondenserType == DataHeatBalance::RefrigCondenserType::Air) {
9374 18 : SetupOutputVariable(state,
9375 : "Refrigeration Air Chiller System Condenser Fan Electricity Rate",
9376 : Constant::Units::W,
9377 9 : cond.ActualFanPower,
9378 : OutputProcessor::TimeStepType::System,
9379 : OutputProcessor::StoreType::Average,
9380 9 : cond.Name);
9381 18 : SetupOutputVariable(state,
9382 : "Refrigeration Air Chiller System Condenser Fan Electricity Energy",
9383 : Constant::Units::J,
9384 9 : cond.FanElecEnergy,
9385 : OutputProcessor::TimeStepType::System,
9386 : OutputProcessor::StoreType::Sum,
9387 9 : cond.Name,
9388 : Constant::eResource::Electricity,
9389 : OutputProcessor::Group::Plant,
9390 : OutputProcessor::EndUseCat::Refrigeration,
9391 : cond.EndUseSubcategory);
9392 : } // Air cooled
9393 :
9394 9 : if (cond.CondenserType == DataHeatBalance::RefrigCondenserType::Evap) {
9395 0 : SetupOutputVariable(state,
9396 : "Refrigeration Air Chiller System Condenser Fan Electricity Rate",
9397 : Constant::Units::W,
9398 0 : cond.ActualFanPower,
9399 : OutputProcessor::TimeStepType::System,
9400 : OutputProcessor::StoreType::Average,
9401 0 : cond.Name);
9402 0 : SetupOutputVariable(state,
9403 : "Refrigeration Air Chiller System Condenser Fan Electricity Energy",
9404 : Constant::Units::J,
9405 0 : cond.FanElecEnergy,
9406 : OutputProcessor::TimeStepType::System,
9407 : OutputProcessor::StoreType::Sum,
9408 0 : cond.Name,
9409 : Constant::eResource::Electricity,
9410 : OutputProcessor::Group::Plant,
9411 : OutputProcessor::EndUseCat::Refrigeration,
9412 : cond.EndUseSubcategory);
9413 0 : SetupOutputVariable(state,
9414 : "Refrigeration Air Chiller System Condenser Pump Electricity Rate",
9415 : Constant::Units::W,
9416 0 : cond.ActualEvapPumpPower,
9417 : OutputProcessor::TimeStepType::System,
9418 : OutputProcessor::StoreType::Average,
9419 0 : cond.Name);
9420 0 : SetupOutputVariable(state,
9421 : "Refrigeration Air Chiller System Condenser Pump Electricity Energy",
9422 : Constant::Units::J,
9423 0 : cond.EvapPumpConsumption,
9424 : OutputProcessor::TimeStepType::System,
9425 : OutputProcessor::StoreType::Sum,
9426 0 : cond.Name,
9427 : Constant::eResource::Electricity,
9428 : OutputProcessor::Group::Plant,
9429 : OutputProcessor::EndUseCat::Refrigeration,
9430 : cond.EndUseSubcategory);
9431 0 : SetupOutputVariable(state,
9432 : "Refrigeration Air Chiller System Condenser Basin Heater Electricity Rate",
9433 : Constant::Units::W,
9434 0 : cond.BasinHeaterPower,
9435 : OutputProcessor::TimeStepType::System,
9436 : OutputProcessor::StoreType::Average,
9437 0 : cond.Name);
9438 0 : SetupOutputVariable(state,
9439 : "Refrigeration Air Chiller System Condenser Basin Heater Electricity Energy",
9440 : Constant::Units::J,
9441 0 : cond.BasinHeaterConsumption,
9442 : OutputProcessor::TimeStepType::System,
9443 : OutputProcessor::StoreType::Sum,
9444 0 : cond.Name,
9445 : Constant::eResource::Electricity,
9446 : OutputProcessor::Group::Plant,
9447 : OutputProcessor::EndUseCat::Refrigeration,
9448 : cond.EndUseSubcategory);
9449 0 : SetupOutputVariable(state,
9450 : "Refrigeration Air Chiller System Condenser Evaporated Water Volume Flow Rate",
9451 : Constant::Units::m3_s,
9452 0 : cond.EvapWaterConsumpRate,
9453 : OutputProcessor::TimeStepType::System,
9454 : OutputProcessor::StoreType::Average,
9455 0 : cond.Name);
9456 0 : SetupOutputVariable(state,
9457 : "Refrigeration Air Chiller System Condenser Evaporated Water Volume",
9458 : Constant::Units::m3,
9459 0 : cond.EvapWaterConsumption,
9460 : OutputProcessor::TimeStepType::System,
9461 : OutputProcessor::StoreType::Sum,
9462 0 : cond.Name,
9463 : Constant::eResource::Water,
9464 : OutputProcessor::Group::Plant,
9465 : OutputProcessor::EndUseCat::Refrigeration,
9466 : cond.EndUseSubcategory);
9467 : } // Evaporative Condenser Variables
9468 :
9469 9 : if (cond.CondenserType == DataHeatBalance::RefrigCondenserType::Water) {
9470 0 : SetupOutputVariable(state,
9471 : "Refrigeration Air Chiller System Condenser Fluid Mass Flow Rate",
9472 : Constant::Units::kg_s,
9473 0 : cond.MassFlowRate,
9474 : OutputProcessor::TimeStepType::System,
9475 : OutputProcessor::StoreType::Average,
9476 0 : cond.Name);
9477 :
9478 : } // Water-cooled Condenser variables
9479 :
9480 : } else { // Serving loads/systems with cases and walkins on zone time step
9481 :
9482 60 : SetupOutputVariable(state,
9483 : "Refrigeration System Condenser Heat Transfer Rate",
9484 : Constant::Units::W,
9485 30 : cond.CondLoad,
9486 : OutputProcessor::TimeStepType::Zone,
9487 : OutputProcessor::StoreType::Average,
9488 30 : cond.Name);
9489 60 : SetupOutputVariable(state,
9490 : "Refrigeration System Condenser Heat Transfer Energy",
9491 : Constant::Units::J,
9492 30 : cond.CondEnergy,
9493 : OutputProcessor::TimeStepType::Zone,
9494 : OutputProcessor::StoreType::Sum,
9495 30 : cond.Name);
9496 :
9497 30 : if (cond.CondenserType != DataHeatBalance::RefrigCondenserType::Cascade) {
9498 58 : SetupOutputVariable(state,
9499 : "Refrigeration System Condenser Total Recovered Heat Transfer Rate",
9500 : Constant::Units::W,
9501 29 : cond.TotalHeatRecoveredLoad,
9502 : OutputProcessor::TimeStepType::Zone,
9503 : OutputProcessor::StoreType::Average,
9504 29 : cond.Name);
9505 58 : SetupOutputVariable(state,
9506 : "Refrigeration System Condenser Total Recovered Heat Transfer Energy",
9507 : Constant::Units::J,
9508 29 : cond.TotalHeatRecoveredEnergy,
9509 : OutputProcessor::TimeStepType::Zone,
9510 : OutputProcessor::StoreType::Sum,
9511 29 : cond.Name);
9512 58 : SetupOutputVariable(state,
9513 : "Refrigeration System Condenser Non Refrigeration Recovered Heat Transfer Rate",
9514 : Constant::Units::W,
9515 29 : cond.ExternalHeatRecoveredLoad,
9516 : OutputProcessor::TimeStepType::Zone,
9517 : OutputProcessor::StoreType::Average,
9518 29 : cond.Name);
9519 58 : SetupOutputVariable(state,
9520 : "Refrigeration System Condenser Non Refrigeration Recovered Heat Transfer Energy",
9521 : Constant::Units::J,
9522 29 : cond.ExternalEnergyRecovered,
9523 : OutputProcessor::TimeStepType::Zone,
9524 : OutputProcessor::StoreType::Sum,
9525 29 : cond.Name);
9526 58 : SetupOutputVariable(state,
9527 : "Refrigeration System Condenser Defrost Recovered Heat Transfer Rate",
9528 : Constant::Units::W,
9529 29 : cond.InternalHeatRecoveredLoad,
9530 : OutputProcessor::TimeStepType::Zone,
9531 : OutputProcessor::StoreType::Average,
9532 29 : cond.Name);
9533 58 : SetupOutputVariable(state,
9534 : "Refrigeration System Condenser Defrost Recovered Heat Transfer Energy",
9535 : Constant::Units::J,
9536 29 : cond.InternalEnergyRecovered,
9537 : OutputProcessor::TimeStepType::Zone,
9538 : OutputProcessor::StoreType::Sum,
9539 29 : cond.Name);
9540 : } // not cascade because recovered energy on cascade systems passed up to higher temperature system
9541 :
9542 30 : if (cond.CondenserType == DataHeatBalance::RefrigCondenserType::Air) {
9543 50 : SetupOutputVariable(state,
9544 : "Refrigeration System Condenser Fan Electricity Rate",
9545 : Constant::Units::W,
9546 25 : cond.ActualFanPower,
9547 : OutputProcessor::TimeStepType::Zone,
9548 : OutputProcessor::StoreType::Average,
9549 25 : cond.Name);
9550 50 : SetupOutputVariable(state,
9551 : "Refrigeration System Condenser Fan Electricity Energy",
9552 : Constant::Units::J,
9553 25 : cond.FanElecEnergy,
9554 : OutputProcessor::TimeStepType::Zone,
9555 : OutputProcessor::StoreType::Sum,
9556 25 : cond.Name,
9557 : Constant::eResource::Electricity,
9558 : OutputProcessor::Group::Plant,
9559 : OutputProcessor::EndUseCat::Refrigeration,
9560 : cond.EndUseSubcategory);
9561 : } // Air cooled
9562 :
9563 30 : if (cond.CondenserType == DataHeatBalance::RefrigCondenserType::Evap) {
9564 6 : SetupOutputVariable(state,
9565 : "Refrigeration System Condenser Fan Electricity Rate",
9566 : Constant::Units::W,
9567 3 : cond.ActualFanPower,
9568 : OutputProcessor::TimeStepType::Zone,
9569 : OutputProcessor::StoreType::Average,
9570 3 : cond.Name);
9571 6 : SetupOutputVariable(state,
9572 : "Refrigeration System Condenser Fan Electricity Energy",
9573 : Constant::Units::J,
9574 3 : cond.FanElecEnergy,
9575 : OutputProcessor::TimeStepType::Zone,
9576 : OutputProcessor::StoreType::Sum,
9577 3 : cond.Name,
9578 : Constant::eResource::Electricity,
9579 : OutputProcessor::Group::Plant,
9580 : OutputProcessor::EndUseCat::Refrigeration,
9581 : cond.EndUseSubcategory);
9582 6 : SetupOutputVariable(state,
9583 : "Refrigeration System Condenser Pump Electricity Rate",
9584 : Constant::Units::W,
9585 3 : cond.ActualEvapPumpPower,
9586 : OutputProcessor::TimeStepType::Zone,
9587 : OutputProcessor::StoreType::Average,
9588 3 : cond.Name);
9589 6 : SetupOutputVariable(state,
9590 : "Refrigeration System Condenser Pump Electricity Energy",
9591 : Constant::Units::J,
9592 3 : cond.EvapPumpConsumption,
9593 : OutputProcessor::TimeStepType::Zone,
9594 : OutputProcessor::StoreType::Sum,
9595 3 : cond.Name,
9596 : Constant::eResource::Electricity,
9597 : OutputProcessor::Group::Plant,
9598 : OutputProcessor::EndUseCat::Refrigeration,
9599 : cond.EndUseSubcategory);
9600 6 : SetupOutputVariable(state,
9601 : "Refrigeration System Condenser Basin Heater Electricity Rate",
9602 : Constant::Units::W,
9603 3 : cond.BasinHeaterPower,
9604 : OutputProcessor::TimeStepType::Zone,
9605 : OutputProcessor::StoreType::Average,
9606 3 : cond.Name);
9607 6 : SetupOutputVariable(state,
9608 : "Refrigeration System Condenser Basin Heater Electricity Energy",
9609 : Constant::Units::J,
9610 3 : cond.BasinHeaterConsumption,
9611 : OutputProcessor::TimeStepType::Zone,
9612 : OutputProcessor::StoreType::Sum,
9613 3 : cond.Name,
9614 : Constant::eResource::Electricity,
9615 : OutputProcessor::Group::Plant,
9616 : OutputProcessor::EndUseCat::Refrigeration,
9617 : cond.EndUseSubcategory);
9618 6 : SetupOutputVariable(state,
9619 : "Refrigeration System Condenser Evaporated Water Volume Flow Rate",
9620 : Constant::Units::m3_s,
9621 3 : cond.EvapWaterConsumpRate,
9622 : OutputProcessor::TimeStepType::Zone,
9623 : OutputProcessor::StoreType::Average,
9624 3 : cond.Name);
9625 6 : SetupOutputVariable(state,
9626 : "Refrigeration System Condenser Evaporated Water Volume",
9627 : Constant::Units::m3,
9628 3 : cond.EvapWaterConsumption,
9629 : OutputProcessor::TimeStepType::Zone,
9630 : OutputProcessor::StoreType::Sum,
9631 3 : cond.Name,
9632 : Constant::eResource::Water,
9633 : OutputProcessor::Group::Plant,
9634 : OutputProcessor::EndUseCat::Refrigeration,
9635 : cond.EndUseSubcategory);
9636 : } // Evaporative Condenser Variables
9637 :
9638 30 : if (cond.CondenserType == DataHeatBalance::RefrigCondenserType::Water) {
9639 2 : SetupOutputVariable(state,
9640 : "Refrigeration System Condenser Water Mass Flow Rate",
9641 : Constant::Units::kg_s,
9642 1 : cond.MassFlowRate,
9643 : OutputProcessor::TimeStepType::System,
9644 : OutputProcessor::StoreType::Average,
9645 1 : cond.Name);
9646 :
9647 : } // Water-cooled Condenser variables
9648 : } // Condenser%CoilFlag to distinguish HVAC vs Zone time steps
9649 : } // CondNum on DataHeatBalance::NumRefrigCondensers
9650 :
9651 15 : if (state.dataRefrigCase->NumSimulationSubcoolers > 0) {
9652 3 : for (int subcoolNum = 1; subcoolNum <= state.dataRefrigCase->NumSimulationSubcoolers; ++subcoolNum) {
9653 2 : auto &cooler = Subcooler(subcoolNum);
9654 : // CurrentModuleObject='Refrigeration:Subcooler'
9655 2 : if (cooler.CoilFlag) { // Subcooler serving system with chillers on HVAC time step
9656 0 : if (cooler.subcoolerType == SubcoolerType::Mechanical) {
9657 0 : SetupOutputVariable(state,
9658 : "Refrigeration Air Chiller System Mechanical Subcooler Heat Transfer Rate",
9659 : Constant::Units::W,
9660 0 : cooler.MechSCTransLoad,
9661 : OutputProcessor::TimeStepType::Zone,
9662 : OutputProcessor::StoreType::Average,
9663 0 : cooler.Name);
9664 0 : SetupOutputVariable(state,
9665 : "Refrigeration Air Chiller System Mechanical Subcooler Heat Transfer Energy",
9666 : Constant::Units::J,
9667 0 : cooler.MechSCTransEnergy,
9668 : OutputProcessor::TimeStepType::Zone,
9669 : OutputProcessor::StoreType::Sum,
9670 0 : cooler.Name);
9671 : }
9672 : } else { // Subcooler on system serving cases and/or walkins
9673 2 : if (cooler.subcoolerType == SubcoolerType::Mechanical) {
9674 2 : SetupOutputVariable(state,
9675 : "Refrigeration System Mechanical Subcooler Heat Transfer Rate",
9676 : Constant::Units::W,
9677 1 : cooler.MechSCTransLoad,
9678 : OutputProcessor::TimeStepType::System,
9679 : OutputProcessor::StoreType::Average,
9680 1 : cooler.Name);
9681 2 : SetupOutputVariable(state,
9682 : "Refrigeration System Mechanical Subcooler Heat Transfer Energy",
9683 : Constant::Units::J,
9684 1 : cooler.MechSCTransEnergy,
9685 : OutputProcessor::TimeStepType::System,
9686 : OutputProcessor::StoreType::Sum,
9687 1 : cooler.Name);
9688 : }
9689 : } // Subcoolers on system serving chillers
9690 : } // Subcoolnum on NumSimulationSubcoolers
9691 : } // NumSimulationSubcoolers > 0
9692 :
9693 : } // NumRefrigSystems > 0
9694 :
9695 801 : if (state.dataRefrigCase->NumTransRefrigSystems > 0) {
9696 : // CurrentModuleObject='Refrigeration:TranscriticalSystem'
9697 2 : for (int refrigSysNum = 1; refrigSysNum <= state.dataRefrigCase->NumTransRefrigSystems; ++refrigSysNum) {
9698 1 : auto &sys = TransSystem(refrigSysNum);
9699 : // for both SingleStage and TwoStage systems (medium temperature loads present)
9700 2 : SetupOutputVariable(state,
9701 : "Refrigeration Transcritical System Total High Pressure Compressor Electricity Rate",
9702 : Constant::Units::W,
9703 1 : sys.TotCompPowerHP,
9704 : OutputProcessor::TimeStepType::Zone,
9705 : OutputProcessor::StoreType::Average,
9706 1 : sys.Name);
9707 2 : SetupOutputVariable(state,
9708 : "Refrigeration Transcritical System Total High Pressure Compressor Electricity Energy",
9709 : Constant::Units::J,
9710 1 : sys.TotCompElecConsumpHP,
9711 : OutputProcessor::TimeStepType::Zone,
9712 : OutputProcessor::StoreType::Sum,
9713 1 : sys.Name);
9714 2 : SetupOutputVariable(state,
9715 : "Refrigeration Transcritical System Total Compressor Electricity Energy",
9716 : Constant::Units::J,
9717 1 : sys.TotCompElecConsump,
9718 : OutputProcessor::TimeStepType::Zone,
9719 : OutputProcessor::StoreType::Sum,
9720 1 : sys.Name);
9721 2 : SetupOutputVariable(state,
9722 : "Refrigeration Transcritical System Average COP",
9723 : Constant::Units::W_W,
9724 1 : sys.AverageCompressorCOP,
9725 : OutputProcessor::TimeStepType::Zone,
9726 : OutputProcessor::StoreType::Average,
9727 1 : sys.Name);
9728 2 : SetupOutputVariable(state,
9729 : "Refrigeration Transcritical System Medium Temperature Cases and Walk Ins Heat Transfer Rate",
9730 : Constant::Units::W,
9731 1 : sys.TotalCoolingLoadMT,
9732 : OutputProcessor::TimeStepType::Zone,
9733 : OutputProcessor::StoreType::Average,
9734 1 : sys.Name);
9735 2 : SetupOutputVariable(state,
9736 : "Refrigeration Transcritical System Medium Temperature Cases and Walk Ins Heat Transfer Energy",
9737 : Constant::Units::J,
9738 1 : sys.TotalCoolingEnergyMT,
9739 : OutputProcessor::TimeStepType::Zone,
9740 : OutputProcessor::StoreType::Sum,
9741 1 : sys.Name);
9742 2 : SetupOutputVariable(state,
9743 : "Refrigeration Transcritical System Total Cases and Walk Ins Heat Transfer Energy",
9744 : Constant::Units::J,
9745 1 : sys.TotalCoolingEnergy,
9746 : OutputProcessor::TimeStepType::Zone,
9747 : OutputProcessor::StoreType::Sum,
9748 1 : sys.Name);
9749 2 : SetupOutputVariable(state,
9750 : "Refrigeration Transcritical System Medium Temperature Suction Pipe Heat Transfer Rate",
9751 : Constant::Units::W,
9752 1 : sys.PipeHeatLoadMT,
9753 : OutputProcessor::TimeStepType::Zone,
9754 : OutputProcessor::StoreType::Average,
9755 1 : sys.Name);
9756 2 : SetupOutputVariable(state,
9757 : "Refrigeration Transcritical System Medium Temperature Suction Pipe Heat Transfer Energy",
9758 : Constant::Units::J,
9759 1 : sys.PipeHeatEnergyMT,
9760 : OutputProcessor::TimeStepType::Zone,
9761 : OutputProcessor::StoreType::Sum,
9762 1 : sys.Name);
9763 2 : SetupOutputVariable(state,
9764 : "Refrigeration Transcritical System High Pressure Compressor Heat Transfer Rate",
9765 : Constant::Units::W,
9766 1 : sys.TotCompCapacityHP,
9767 : OutputProcessor::TimeStepType::Zone,
9768 : OutputProcessor::StoreType::Average,
9769 1 : sys.Name);
9770 2 : SetupOutputVariable(state,
9771 : "Refrigeration Transcritical System High Pressure Compressor Heat Transfer Energy",
9772 : Constant::Units::J,
9773 1 : sys.TotCompCoolingEnergyHP,
9774 : OutputProcessor::TimeStepType::Zone,
9775 : OutputProcessor::StoreType::Sum,
9776 1 : sys.Name); // indiv compressors go to meter, not system sum
9777 2 : SetupOutputVariable(state,
9778 : "Refrigeration Transcritical System Net Rejected Heat Transfer Rate",
9779 : Constant::Units::W,
9780 1 : sys.NetHeatRejectLoad,
9781 : OutputProcessor::TimeStepType::Zone,
9782 : OutputProcessor::StoreType::Average,
9783 1 : sys.Name);
9784 2 : SetupOutputVariable(state,
9785 : "Refrigeration Transcritical System Net Rejected Heat Transfer Energy",
9786 : Constant::Units::J,
9787 1 : sys.NetHeatRejectEnergy,
9788 : OutputProcessor::TimeStepType::Zone,
9789 : OutputProcessor::StoreType::Sum,
9790 1 : sys.Name);
9791 2 : SetupOutputVariable(state,
9792 : "Refrigeration Transcritical System Estimated Refrigerant Inventory Mass",
9793 : Constant::Units::kg,
9794 1 : sys.RefInventory,
9795 : OutputProcessor::TimeStepType::Zone,
9796 : OutputProcessor::StoreType::Average,
9797 1 : sys.Name);
9798 2 : SetupOutputVariable(state,
9799 : "Refrigeration Transcritical System Refrigerant Mass Flow Rate",
9800 : Constant::Units::kg_s,
9801 1 : sys.RefMassFlowComps,
9802 : OutputProcessor::TimeStepType::Zone,
9803 : OutputProcessor::StoreType::Average,
9804 1 : sys.Name);
9805 2 : SetupOutputVariable(state,
9806 : "Refrigeration Transcritical System Medium Temperature Evaporating Temperature",
9807 : Constant::Units::C,
9808 1 : sys.TEvapNeededMT,
9809 : OutputProcessor::TimeStepType::Zone,
9810 : OutputProcessor::StoreType::Average,
9811 1 : sys.Name);
9812 2 : SetupOutputVariable(state,
9813 : "Refrigeration Transcritical System Medium Temperature Suction Temperature",
9814 : Constant::Units::C,
9815 1 : sys.TCompInHP,
9816 : OutputProcessor::TimeStepType::Zone,
9817 : OutputProcessor::StoreType::Average,
9818 1 : sys.Name);
9819 1 : if (sys.transSysType == TransSysType::TwoStage) { // for TwoStage system only (low temperature loads present)
9820 2 : SetupOutputVariable(state,
9821 : "Refrigeration Transcritical System Low Pressure Compressor Electricity Rate",
9822 : Constant::Units::W,
9823 1 : sys.TotCompPowerLP,
9824 : OutputProcessor::TimeStepType::Zone,
9825 : OutputProcessor::StoreType::Average,
9826 1 : sys.Name);
9827 2 : SetupOutputVariable(state,
9828 : "Refrigeration Transcritical System Low Pressure Compressor Electricity Energy",
9829 : Constant::Units::J,
9830 1 : sys.TotCompElecConsumpLP,
9831 : OutputProcessor::TimeStepType::Zone,
9832 : OutputProcessor::StoreType::Sum,
9833 1 : sys.Name);
9834 2 : SetupOutputVariable(state,
9835 : "Refrigeration Transcritical System Low Temperature Cases and Walk Ins Heat Transfer Rate",
9836 : Constant::Units::W,
9837 1 : sys.TotalCoolingLoadLT,
9838 : OutputProcessor::TimeStepType::Zone,
9839 : OutputProcessor::StoreType::Average,
9840 1 : sys.Name);
9841 2 : SetupOutputVariable(state,
9842 : "Refrigeration Transcritical System Low Temperature Cases and Walk Ins Heat Transfer Energy",
9843 : Constant::Units::J,
9844 1 : sys.TotalCoolingEnergyLT,
9845 : OutputProcessor::TimeStepType::Zone,
9846 : OutputProcessor::StoreType::Sum,
9847 1 : sys.Name);
9848 2 : SetupOutputVariable(state,
9849 : "Refrigeration Transcritical System Low Temperature Suction Pipe Heat Transfer Rate",
9850 : Constant::Units::W,
9851 1 : sys.PipeHeatLoadLT,
9852 : OutputProcessor::TimeStepType::Zone,
9853 : OutputProcessor::StoreType::Average,
9854 1 : sys.Name);
9855 2 : SetupOutputVariable(state,
9856 : "Refrigeration Transcritical System Low Temperature Suction Pipe Heat Transfer Energy",
9857 : Constant::Units::J,
9858 1 : sys.PipeHeatEnergyLT,
9859 : OutputProcessor::TimeStepType::Zone,
9860 : OutputProcessor::StoreType::Sum,
9861 1 : sys.Name);
9862 2 : SetupOutputVariable(state,
9863 : "Refrigeration Transcritical System Low Pressure Compressor Heat Transfer Rate",
9864 : Constant::Units::W,
9865 1 : sys.TotCompCapacityLP,
9866 : OutputProcessor::TimeStepType::Zone,
9867 : OutputProcessor::StoreType::Average,
9868 1 : sys.Name);
9869 2 : SetupOutputVariable(state,
9870 : "Refrigeration Transcritical System Low Pressure Compressor Heat Transfer Energy",
9871 : Constant::Units::J,
9872 1 : sys.TotCompCoolingEnergyLP,
9873 : OutputProcessor::TimeStepType::Zone,
9874 : OutputProcessor::StoreType::Sum,
9875 1 : sys.Name); // indiv compressors go to meter, not system sum
9876 2 : SetupOutputVariable(state,
9877 : "Refrigeration Transcritical System Low Temperature Evaporating Temperature",
9878 : Constant::Units::C,
9879 1 : sys.TEvapNeededLT,
9880 : OutputProcessor::TimeStepType::Zone,
9881 : OutputProcessor::StoreType::Average,
9882 1 : sys.Name);
9883 2 : SetupOutputVariable(state,
9884 : "Refrigeration Transcritical System Low Temperature Suction Temperature",
9885 : Constant::Units::C,
9886 1 : sys.TCompInLP,
9887 : OutputProcessor::TimeStepType::Zone,
9888 : OutputProcessor::StoreType::Average,
9889 1 : sys.Name);
9890 : } // (sys%TransSysType == 2)
9891 :
9892 1 : if (sys.SystemRejectHeatToZone) {
9893 0 : if (GasCooler(sys.GasCoolerNum(1)).InletAirZoneNum > 0) {
9894 0 : SetupZoneInternalGain(state,
9895 0 : GasCooler(sys.GasCoolerNum(1)).InletAirZoneNum,
9896 : sys.Name,
9897 : DataHeatBalance::IntGainType::RefrigerationTransSysAirCooledGasCooler,
9898 : &sys.NetHeatRejectLoad);
9899 : }
9900 : } // (sys%SystemRejectHeatToZone)
9901 1 : if (sys.SuctionPipeActualZoneNumMT > 0) {
9902 0 : SetupZoneInternalGain(state,
9903 : sys.SuctionPipeActualZoneNumMT,
9904 : sys.Name,
9905 : DataHeatBalance::IntGainType::RefrigerationTransSysSuctionPipeMT,
9906 : &sys.PipeHeatLoadMT);
9907 : } // sys%SuctionPipeActualZoneNumMT > 0
9908 1 : if (sys.SuctionPipeActualZoneNumLT > 0) {
9909 0 : SetupZoneInternalGain(state,
9910 : sys.SuctionPipeActualZoneNumLT,
9911 : sys.Name,
9912 : DataHeatBalance::IntGainType::RefrigerationTransSysSuctionPipeLT,
9913 : &sys.PipeHeatLoadLT);
9914 : } // sys%SuctionPipeActualZoneNumLT > 0
9915 :
9916 : // Report Compressor ENERGY here, not on system level for meters.
9917 : // LP compressors
9918 4 : for (int compIndex = 1; compIndex <= sys.NumCompressorsLP; ++compIndex) {
9919 3 : int compNum = sys.CompressorNumLP(compIndex);
9920 : // CurrentModuleObject='Refrigeration:Compressor'
9921 3 : if (Compressor(compNum).NumSysAttach == 1) { // only set up reports for compressors that are used once and only once
9922 6 : SetupOutputVariable(state,
9923 : "Refrigeration Compressor Electricity Rate",
9924 : Constant::Units::W,
9925 3 : Compressor(compNum).Power,
9926 : OutputProcessor::TimeStepType::Zone,
9927 : OutputProcessor::StoreType::Average,
9928 3 : Compressor(compNum).Name);
9929 6 : SetupOutputVariable(state,
9930 : "Refrigeration Compressor Electricity Energy",
9931 : Constant::Units::J,
9932 3 : Compressor(compNum).ElecConsumption,
9933 : OutputProcessor::TimeStepType::Zone,
9934 : OutputProcessor::StoreType::Sum,
9935 3 : Compressor(compNum).Name,
9936 : Constant::eResource::Electricity,
9937 : OutputProcessor::Group::Plant,
9938 : OutputProcessor::EndUseCat::Refrigeration,
9939 3 : Compressor(compNum).EndUseSubcategory);
9940 6 : SetupOutputVariable(state,
9941 : "Refrigeration Compressor Heat Transfer Rate",
9942 : Constant::Units::W,
9943 3 : Compressor(compNum).Capacity,
9944 : OutputProcessor::TimeStepType::Zone,
9945 : OutputProcessor::StoreType::Average,
9946 3 : Compressor(compNum).Name);
9947 6 : SetupOutputVariable(state,
9948 : "Refrigeration Compressor Heat Transfer Energy",
9949 : Constant::Units::J,
9950 3 : Compressor(compNum).CoolingEnergy,
9951 : OutputProcessor::TimeStepType::Zone,
9952 : OutputProcessor::StoreType::Sum,
9953 3 : Compressor(compNum).Name);
9954 6 : SetupOutputVariable(state,
9955 : "Refrigeration Compressor Runtime Fraction",
9956 : Constant::Units::None,
9957 3 : Compressor(compNum).LoadFactor,
9958 : OutputProcessor::TimeStepType::Zone,
9959 : OutputProcessor::StoreType::Average,
9960 3 : Compressor(compNum).Name);
9961 : } // NumSysAttach
9962 : } // sys%NumCompressorsLP
9963 :
9964 : // HP compressors
9965 4 : for (int compIndex = 1; compIndex <= sys.NumCompressorsHP; ++compIndex) {
9966 3 : int compNum = sys.CompressorNumHP(compIndex);
9967 : // CurrentModuleObject='Refrigeration:Compressor'
9968 3 : if (Compressor(compNum).NumSysAttach == 1) { // only set up reports for compressors that are used once and only once
9969 6 : SetupOutputVariable(state,
9970 : "Refrigeration Compressor Electricity Rate",
9971 : Constant::Units::W,
9972 3 : Compressor(compNum).Power,
9973 : OutputProcessor::TimeStepType::Zone,
9974 : OutputProcessor::StoreType::Average,
9975 3 : Compressor(compNum).Name);
9976 6 : SetupOutputVariable(state,
9977 : "Refrigeration Compressor Electricity Energy",
9978 : Constant::Units::J,
9979 3 : Compressor(compNum).ElecConsumption,
9980 : OutputProcessor::TimeStepType::Zone,
9981 : OutputProcessor::StoreType::Sum,
9982 3 : Compressor(compNum).Name,
9983 : Constant::eResource::Electricity,
9984 : OutputProcessor::Group::Plant,
9985 : OutputProcessor::EndUseCat::Refrigeration,
9986 3 : Compressor(compNum).EndUseSubcategory);
9987 6 : SetupOutputVariable(state,
9988 : "Refrigeration Compressor Heat Transfer Rate",
9989 : Constant::Units::W,
9990 3 : Compressor(compNum).Capacity,
9991 : OutputProcessor::TimeStepType::Zone,
9992 : OutputProcessor::StoreType::Average,
9993 3 : Compressor(compNum).Name);
9994 6 : SetupOutputVariable(state,
9995 : "Refrigeration Compressor Heat Transfer Energy",
9996 : Constant::Units::J,
9997 3 : Compressor(compNum).CoolingEnergy,
9998 : OutputProcessor::TimeStepType::Zone,
9999 : OutputProcessor::StoreType::Sum,
10000 3 : Compressor(compNum).Name);
10001 6 : SetupOutputVariable(state,
10002 : "Refrigeration Compressor Runtime Fraction",
10003 : Constant::Units::None,
10004 3 : Compressor(compNum).LoadFactor,
10005 : OutputProcessor::TimeStepType::Zone,
10006 : OutputProcessor::StoreType::Average,
10007 3 : Compressor(compNum).Name);
10008 : } // NumSysAttach
10009 : } // sys%NumCompressorsHP
10010 :
10011 : } // NumTransRefrigSystems
10012 : } // (NumTransRefrigSystems > 0)
10013 :
10014 801 : if (state.dataRefrigCase->NumSimulationGasCooler > 0) {
10015 2 : for (int GCNum = 1; GCNum <= state.dataRefrigCase->NumSimulationGasCooler; ++GCNum) {
10016 1 : auto &cooler = GasCooler(GCNum);
10017 : // CurrentModuleObject='Refrigeration:GasCooler:AirCooled'
10018 2 : SetupOutputVariable(state,
10019 : "Refrigeration Transcritical System Gas Cooler Heat Transfer Rate",
10020 : Constant::Units::W,
10021 1 : cooler.GasCoolerLoad,
10022 : OutputProcessor::TimeStepType::Zone,
10023 : OutputProcessor::StoreType::Average,
10024 1 : cooler.Name);
10025 2 : SetupOutputVariable(state,
10026 : "Refrigeration Transcritical System Gas Cooler Heat Transfer Energy",
10027 : Constant::Units::J,
10028 1 : cooler.GasCoolerEnergy,
10029 : OutputProcessor::TimeStepType::Zone,
10030 : OutputProcessor::StoreType::Sum,
10031 1 : cooler.Name);
10032 2 : SetupOutputVariable(state,
10033 : "Refrigeration Transcritical System Gas Cooler Fan Electricity Rate",
10034 : Constant::Units::W,
10035 1 : cooler.ActualFanPower,
10036 : OutputProcessor::TimeStepType::Zone,
10037 : OutputProcessor::StoreType::Average,
10038 1 : cooler.Name);
10039 2 : SetupOutputVariable(state,
10040 : "Refrigeration Transcritical System Gas Cooler Fan Electricity Energy",
10041 : Constant::Units::J,
10042 1 : cooler.FanElecEnergy,
10043 : OutputProcessor::TimeStepType::Zone,
10044 : OutputProcessor::StoreType::Sum,
10045 1 : cooler.Name,
10046 : Constant::eResource::Electricity,
10047 : OutputProcessor::Group::Plant,
10048 : OutputProcessor::EndUseCat::Refrigeration,
10049 : cooler.EndUseSubcategory);
10050 2 : SetupOutputVariable(state,
10051 : "Refrigeration Transcritical System Gas Cooler Outlet Temperature",
10052 : Constant::Units::C,
10053 1 : cooler.TGasCoolerOut,
10054 : OutputProcessor::TimeStepType::Zone,
10055 : OutputProcessor::StoreType::Average,
10056 1 : cooler.Name);
10057 2 : SetupOutputVariable(state,
10058 : "Refrigeration Transcritical System Gas Cooler Outlet Pressure",
10059 : Constant::Units::Pa,
10060 1 : cooler.PGasCoolerOut,
10061 : OutputProcessor::TimeStepType::Zone,
10062 : OutputProcessor::StoreType::Average,
10063 1 : cooler.Name);
10064 2 : SetupOutputVariable(state,
10065 : "Refrigeration Transcritical System Gas Cooler Defrost Recovered Heat Transfer Rate",
10066 : Constant::Units::W,
10067 1 : cooler.InternalHeatRecoveredLoad,
10068 : OutputProcessor::TimeStepType::Zone,
10069 : OutputProcessor::StoreType::Average,
10070 1 : cooler.Name);
10071 2 : SetupOutputVariable(state,
10072 : "Refrigeration Transcritical System Gas Cooler Defrost Recovered Heat Transfer Energy",
10073 : Constant::Units::J,
10074 1 : cooler.InternalEnergyRecovered,
10075 : OutputProcessor::TimeStepType::Zone,
10076 : OutputProcessor::StoreType::Sum,
10077 1 : cooler.Name);
10078 : } // GCNum on NumSimulationGasCooler
10079 : } // (NumSimulationGasCooler >0)
10080 801 : }
10081 :
10082 468509 : void InitRefrigeration(EnergyPlusData &state)
10083 : {
10084 : // SUBROUTINE INFORMATION:
10085 : // AUTHOR Richard Raustad, FSEC
10086 : // DATE WRITTEN Oct/Nov 2004
10087 : // MODIFIED Hudson, ORNL July 2007, Stovall, ORNL, 2008
10088 : // RE-ENGINEERED na
10089 :
10090 : // PURPOSE OF THIS SUBROUTINE:
10091 : // Initialize (zero) global variables before simulating compressor racks and refrigerated cases
10092 : // Several variables in this module are accumulative. For example, unmet compressor loads are carried over
10093 : // to the next time step. Ice loads are accumulated until melted by a defrost. Because this module can be
10094 : // called multiple times during any single time step, these summations need to be saved ONLY on the last time
10095 : // through any given time step.
10096 :
10097 : // It is necessary to decrease the condenser load by the amount of heat used elsewhere
10098 : // via desuperheating water heaters and heating coils.
10099 : // Because the refrigeration system is solved before the HVAC time step loops, the
10100 : // refrigeration system must use the values lagged from the previous time step. In
10101 : // terms of energy, this should balance out and is preferable to not making the correction,
10102 : // in which case the condenser cooling water/air/fan energy are charged with energy
10103 : // loads that have been accounted elsewhere. For consistency, the lagged value must be used,
10104 : // even if the Zone time step is repeated. Therefore, the lagged variables are saved
10105 : // here for use during successive iterations of same zone/load time step.
10106 :
10107 : // METHODOLOGY EMPLOYED:
10108 : // Global variables for Case Credit are located in DataHeatBalance. To Zone variables are used in the Air Heat
10109 : // Balance in ZoneTempPredictorCorrector to calculate the zone load. To HVAC variables are used in
10110 : // ZoneEquipmentManager to add the portion of case credits attributed to the HVAC system to the zone return air node.
10111 :
10112 : // Because we can't know apriori whether or not the time step will be repeated, we save the most recent
10113 : // addition/subtraction to/from each accumulating variable. If the time step is repeated,
10114 : // this most recent addition/subtraction is reversed before the rest of the refrigeration simulation begins.
10115 :
10116 : // Used to adjust accumulative variables when time step is repeated
10117 :
10118 468509 : auto &RefrigCase = state.dataRefrigCase->RefrigCase;
10119 468509 : auto &RefrigRack = state.dataRefrigCase->RefrigRack;
10120 468509 : auto &System = state.dataRefrigCase->System;
10121 468509 : auto &TransSystem = state.dataRefrigCase->TransSystem;
10122 468509 : auto &Condenser = state.dataRefrigCase->Condenser;
10123 468509 : auto &Compressor = state.dataRefrigCase->Compressor;
10124 468509 : auto &GasCooler = state.dataRefrigCase->GasCooler;
10125 468509 : auto &Secondary = state.dataRefrigCase->Secondary;
10126 468509 : auto &WalkIn = state.dataRefrigCase->WalkIn;
10127 468509 : auto &WarehouseCoil = state.dataRefrigCase->WarehouseCoil;
10128 468509 : auto &CoilSysCredit = state.dataRefrigCase->CoilSysCredit;
10129 468509 : auto &CaseWIZoneReport = state.dataRefrigCase->CaseWIZoneReport;
10130 :
10131 : // Zero display case, air-coil, and walk-in cooler credits (summed by zone)
10132 : // to 0 each zone or sys time step
10133 : // These 'casecredit' variables are also used to transfer energy from zone-located
10134 : // compressor-rack condenser heat rejection, heat absorption by distribution piping,
10135 : // suction piping, and receiver shells to zone
10136 468509 : if (state.dataGlobal->NumOfZones > 0) {
10137 468509 : if (state.dataRefrigCase->UseSysTimeStep) {
10138 5343915 : for (int i = CoilSysCredit.l(), e = CoilSysCredit.u(); i <= e; ++i) {
10139 4987654 : CoilSysCredit(i).reset();
10140 : }
10141 : } // UseSysTimeStep = true
10142 :
10143 : // Can arrive here when load call to refrigeration looks for cases/walkin systems and usetimestep is false
10144 580757 : if ((!state.dataRefrigCase->UseSysTimeStep) &&
10145 112248 : ((state.dataRefrigCase->NumSimulationCases > 0) || (state.dataRefrigCase->NumSimulationWalkIns > 0))) {
10146 :
10147 3963942 : for (auto &credit : state.dataHeatBal->RefrigCaseCredit) {
10148 3854585 : credit.reset();
10149 109357 : }
10150 3963942 : for (auto &zoneReport : CaseWIZoneReport) {
10151 3854585 : zoneReport.reset();
10152 : }
10153 : }
10154 : }
10155 :
10156 468509 : if (state.dataRefrigCase->NumSimulationCases > 0) {
10157 : // RefrigCase ALLOCATED to NumSimulationCases
10158 591937 : for (auto &refrig : RefrigCase) {
10159 482580 : refrig.reset_init();
10160 : }
10161 : } // NumSimulationCases
10162 :
10163 468509 : if (state.dataRefrigCase->NumSimulationWalkIns > 0) {
10164 : // WalkIn ALLOCATED to NumSimulationWalkIns
10165 96655 : for (int i = WalkIn.l(), e = WalkIn.u(); i <= e; ++i) {
10166 56999 : WalkIn(i).reset_init();
10167 : }
10168 : }
10169 :
10170 468509 : if (state.dataRefrigCase->HaveChillers) {
10171 : // HaveChillers is TRUE when NumSimulationRefrigAirChillers > 0
10172 : // WarehouseCoil ALLOCATED to NumSimulationRefrigAirChillers
10173 30168768 : for (int i = WarehouseCoil.l(), e = WarehouseCoil.u(); i <= e; ++i) {
10174 29809616 : WarehouseCoil(i).reset_init();
10175 : }
10176 : }
10177 :
10178 468509 : if (state.dataRefrigCase->HaveRefrigRacks) {
10179 : // HaveRefrigRacks TRUE when NumRefrigeratedRacks > 0
10180 : // RefrigRack ALLOCATED to NumRefrigeratedRacks
10181 257106 : for (int i = RefrigRack.l(), e = RefrigRack.u(); i <= e; ++i) {
10182 171176 : RefrigRack(i).reset_init();
10183 : }
10184 257106 : for (auto &e : state.dataHeatBal->HeatReclaimRefrigeratedRack) {
10185 171176 : e.AvailCapacity = 0.0;
10186 85930 : }
10187 : // Note don't reset basin heat to zero when no load because heater would remain on
10188 : // RefrigRack.BasinHeaterPower = 0.0;
10189 : // RefrigRack.BasinHeaterConsumption = 0.0;
10190 : }
10191 :
10192 468509 : if (state.dataRefrigCase->NumRefrigCondensers > 0) {
10193 : // Condenser ALLOCATED to DataHeatBalance::NumRefrigCondensers
10194 3714544 : for (int i = Condenser.l(), e = Condenser.u(); i <= e; ++i) {
10195 3315736 : Condenser(i).reset_init();
10196 : }
10197 : // N don't reset basin heat to zero when no load because heater would remain on
10198 3714544 : for (auto &e : state.dataHeatBal->HeatReclaimRefrigCondenser) {
10199 3315736 : e.AvailCapacity = 0.0;
10200 3315736 : e.AvailTemperature = 0.0;
10201 398808 : }
10202 : }
10203 :
10204 468509 : if (state.dataRefrigCase->NumSimulationGasCooler > 0) {
10205 : // GasCooler ALLOCATED to NumSimulationGasCooler
10206 4056 : for (int i = GasCooler.l(), e = GasCooler.u(); i <= e; ++i) {
10207 2028 : GasCooler(i).reset_init();
10208 : }
10209 : }
10210 :
10211 468509 : if (state.dataRefrigCase->NumSimulationCompressors > 0) {
10212 : // Compressor ALLOCATED to NumSimulationCompressors
10213 26215838 : for (int i = Compressor.l(), e = Compressor.u(); i <= e; ++i) {
10214 25815002 : Compressor(i).reset_init();
10215 : }
10216 : }
10217 :
10218 468509 : if (state.dataRefrigCase->HaveDetailedRefrig) {
10219 : // HaveDetailedRefrig is TRUE when NumRefrigSystems > 0
10220 : // System is ALLOCATED to NumRefrigSystems
10221 3718600 : for (int i = System.l(), e = System.u(); i <= e; ++i) {
10222 3319792 : System(i).reset_init();
10223 : }
10224 : }
10225 :
10226 468509 : if (state.dataRefrigCase->HaveDetailedTransRefrig) {
10227 : // HaveDetailedTransRefrig is TRUE when NumTransRefrigSystems > 0
10228 : // TransSystem is ALLOCATED to NumTransRefrigSystems
10229 4056 : for (int i = TransSystem.l(), e = TransSystem.u(); i <= e; ++i) {
10230 2028 : TransSystem(i).reset_init();
10231 : }
10232 : }
10233 :
10234 468509 : if (state.dataRefrigCase->NumSimulationSecondarySystems > 0) {
10235 : // Secondary is ALLOCATED to NumSimulationSecondarySystems
10236 6084 : for (int i = Secondary.l(), e = Secondary.u(); i <= e; ++i) {
10237 4056 : Secondary(i).reset_init();
10238 : }
10239 : }
10240 :
10241 : // Accumulative and carry-over variables are not zeroed at start of each time step, only at beginning of environment
10242 468509 : if (state.dataGlobal->BeginEnvrnFlag && state.dataRefrigCase->InitRefrigerationMyBeginEnvrnFlag) {
10243 321 : if (state.dataRefrigCase->NumSimulationCases > 0) {
10244 1700 : for (int i = RefrigCase.l(), e = RefrigCase.u(); i <= e; ++i) {
10245 1385 : RefrigCase(i).reset_init_accum();
10246 : }
10247 : }
10248 321 : if (state.dataRefrigCase->NumRefrigSystems > 0) {
10249 399 : for (auto &e : System) {
10250 288 : e.UnmetEnergy = 0.0;
10251 : }
10252 : }
10253 321 : if (state.dataRefrigCase->NumSimulationWalkIns > 0) {
10254 249 : for (auto &e : WalkIn) {
10255 144 : e.KgFrost = 0.0;
10256 144 : e.StoredEnergy = 0.0;
10257 : }
10258 249 : for (int walkInID = 1; walkInID <= state.dataRefrigCase->NumSimulationWalkIns; ++walkInID) {
10259 144 : WalkIn(walkInID).IceTemp = WalkIn(walkInID).TEvapDesign;
10260 : }
10261 : }
10262 321 : if (state.dataRefrigCase->NumSimulationRefrigAirChillers > 0) {
10263 504 : for (auto &e : WarehouseCoil) {
10264 498 : e.KgFrost = 0.0;
10265 498 : e.KgFrostSaved = 0.0;
10266 : }
10267 504 : for (int coilID = 1; coilID <= state.dataRefrigCase->NumSimulationRefrigAirChillers; ++coilID) {
10268 498 : WarehouseCoil(coilID).IceTemp = WarehouseCoil(coilID).TEvapDesign;
10269 498 : WarehouseCoil(coilID).IceTempSaved = WarehouseCoil(coilID).TEvapDesign;
10270 : }
10271 : }
10272 321 : if (state.dataRefrigCase->NumSimulationSecondarySystems > 0) {
10273 18 : for (auto &e : Secondary) {
10274 12 : e.UnmetEnergy = 0.0;
10275 : }
10276 : }
10277 321 : if (state.dataRefrigCase->NumRefrigeratedRacks > 0) {
10278 772 : for (auto &e : state.dataHeatBal->HeatReclaimRefrigeratedRack) {
10279 514 : e.HVACDesuperheaterReclaimedHeatTotal = 0.0;
10280 514 : e.WaterHeatingDesuperheaterReclaimedHeatTotal = 0.0;
10281 258 : }
10282 772 : for (auto &e : RefrigRack) {
10283 514 : e.LaggedUsedWaterHeater = 0.0;
10284 514 : e.LaggedUsedHVACCoil = 0.0;
10285 : }
10286 : }
10287 321 : if (state.dataRefrigCase->NumRefrigCondensers > 0) {
10288 387 : for (auto &e : state.dataHeatBal->HeatReclaimRefrigCondenser) {
10289 276 : e.HVACDesuperheaterReclaimedHeatTotal = 0.0;
10290 276 : e.WaterHeatingDesuperheaterReclaimedHeatTotal = 0.0;
10291 111 : }
10292 387 : for (auto &e : Condenser) {
10293 276 : e.LaggedUsedWaterHeater = 0.0;
10294 276 : e.LaggedUsedHVACCoil = 0.0;
10295 : }
10296 : }
10297 609 : for (int systemId = 1; systemId <= state.dataRefrigCase->NumRefrigSystems; ++systemId) {
10298 288 : if (allocated(System(systemId).MechSCLoad)) {
10299 6 : System(systemId).MechSCLoad = 0.0;
10300 : }
10301 288 : System(systemId).LSHXTrans = 0.0;
10302 288 : System(systemId).LSHXTransEnergy = 0.0;
10303 : }
10304 :
10305 321 : if (state.dataGlobal->TimeStepsInHour > 0.0) {
10306 321 : state.dataRefrigCase->TimeStepFraction = 1.0 / double(state.dataGlobal->TimeStepsInHour);
10307 : }
10308 321 : state.dataRefrigCase->InitRefrigerationMyBeginEnvrnFlag = false;
10309 :
10310 : } // ( DataGlobals::BeginEnvrnFlag && MyBeginEnvrnFlag )
10311 :
10312 468509 : if (!state.dataGlobal->BeginEnvrnFlag) {
10313 467398 : state.dataRefrigCase->InitRefrigerationMyBeginEnvrnFlag = true;
10314 : }
10315 :
10316 : // Avoid multiplying accumulation if go through zone/load time step more than once.
10317 468509 : if (!state.dataGlobal->WarmupFlag) { // because no accumulation is done during warm up
10318 : // Can arrive here when load call to refrigeration looks for cases/walkin systems and usetimestep is .FALSE.
10319 49616 : if ((!state.dataRefrigCase->UseSysTimeStep) &&
10320 14688 : ((state.dataRefrigCase->NumSimulationCases > 0) || (state.dataRefrigCase->NumSimulationWalkIns > 0))) {
10321 : // Used to determine whether the zone time step is a repetition
10322 14496 : Real64 MyCurrentTime = (state.dataGlobal->HourOfDay - 1) + state.dataGlobal->TimeStep * state.dataRefrigCase->TimeStepFraction;
10323 14496 : if (std::abs(MyCurrentTime - state.dataRefrigCase->MyCurrentTimeSaved) < MySmallNumber) {
10324 : // If the time step is repeated, need to return to correct values at start of time step
10325 0 : if (state.dataRefrigCase->NumSimulationCases > 0) {
10326 0 : for (int caseID = 1; caseID <= state.dataRefrigCase->NumSimulationCases; ++caseID) {
10327 0 : RefrigCase(caseID).DefrostEnergy = RefrigCase(caseID).DefrostEnergySaved;
10328 0 : RefrigCase(caseID).StockingEnergy = RefrigCase(caseID).StockingEnergySaved;
10329 0 : RefrigCase(caseID).WarmEnvEnergy = RefrigCase(caseID).WarmEnvEnergySaved;
10330 0 : RefrigCase(caseID).KgFrost = RefrigCase(caseID).KgFrostSaved;
10331 0 : RefrigCase(caseID).StoredEnergy = RefrigCase(caseID).StoredEnergySaved;
10332 : } // CaseID
10333 : } // NumSimulationCases
10334 0 : if (state.dataRefrigCase->NumSimulationWalkIns > 0) {
10335 0 : for (int walkInID = 1; walkInID <= state.dataRefrigCase->NumSimulationWalkIns; ++walkInID) {
10336 0 : WalkIn(walkInID).KgFrost = WalkIn(walkInID).KgFrostSaved;
10337 0 : WalkIn(walkInID).StoredEnergy = WalkIn(walkInID).StoredEnergySaved;
10338 0 : WalkIn(walkInID).IceTemp = WalkIn(walkInID).IceTempSaved;
10339 : }
10340 : }
10341 0 : if (state.dataRefrigCase->NumRefrigSystems > 0) {
10342 0 : for (int systemID = 1; systemID <= state.dataRefrigCase->NumRefrigSystems; ++systemID) {
10343 0 : if (System(systemID).CoilFlag) {
10344 0 : continue;
10345 : }
10346 0 : System(systemID).UnmetEnergy = System(systemID).UnmetEnergySaved;
10347 : }
10348 : }
10349 0 : if (state.dataRefrigCase->NumTransRefrigSystems > 0) {
10350 0 : for (int systemID = 1; systemID <= state.dataRefrigCase->NumTransRefrigSystems; ++systemID) {
10351 0 : TransSystem(systemID).UnmetEnergyMT = TransSystem(systemID).UnmetEnergySavedMT;
10352 0 : TransSystem(systemID).UnmetEnergyLT = TransSystem(systemID).UnmetEnergySavedLT;
10353 : }
10354 : }
10355 0 : if (state.dataRefrigCase->NumSimulationSecondarySystems > 0) {
10356 0 : for (int secondID = 1; secondID <= state.dataRefrigCase->NumSimulationSecondarySystems; ++secondID) {
10357 0 : if (Secondary(secondID).CoilFlag) {
10358 0 : continue;
10359 : }
10360 0 : Secondary(secondID).UnmetEnergy = Secondary(secondID).UnmetEnergySaved;
10361 : }
10362 : }
10363 :
10364 : } else {
10365 : // First time through this Zone time step, so set saved values to those in place at start of this time step
10366 14496 : state.dataRefrigCase->MyCurrentTimeSaved = MyCurrentTime;
10367 14496 : if (state.dataRefrigCase->NumSimulationCases > 0) {
10368 80640 : for (int caseID = 1; caseID <= state.dataRefrigCase->NumSimulationCases; ++caseID) {
10369 66144 : RefrigCase(caseID).DefrostEnergySaved = RefrigCase(caseID).DefrostEnergy;
10370 66144 : RefrigCase(caseID).StockingEnergySaved = RefrigCase(caseID).StockingEnergy;
10371 66144 : RefrigCase(caseID).WarmEnvEnergySaved = RefrigCase(caseID).WarmEnvEnergy;
10372 66144 : RefrigCase(caseID).KgFrostSaved = RefrigCase(caseID).KgFrost;
10373 66144 : RefrigCase(caseID).StoredEnergySaved = RefrigCase(caseID).StoredEnergy;
10374 : } // caseid
10375 : } // numsimulationcases
10376 14496 : if (state.dataRefrigCase->NumSimulationWalkIns > 0) {
10377 13248 : for (int walkInID = 1; walkInID <= state.dataRefrigCase->NumSimulationWalkIns; ++walkInID) {
10378 7776 : WalkIn(walkInID).KgFrostSaved = WalkIn(walkInID).KgFrost;
10379 7776 : WalkIn(walkInID).StoredEnergySaved = WalkIn(walkInID).StoredEnergy;
10380 7776 : WalkIn(walkInID).IceTempSaved = WalkIn(walkInID).IceTemp;
10381 : }
10382 : }
10383 14496 : if (state.dataRefrigCase->NumRefrigSystems > 0) {
10384 17568 : for (int systemID = 1; systemID <= state.dataRefrigCase->NumRefrigSystems; ++systemID) {
10385 12096 : if (System(systemID).CoilFlag) {
10386 0 : continue;
10387 : }
10388 12096 : System(systemID).UnmetEnergySaved = System(systemID).UnmetEnergy;
10389 : }
10390 : }
10391 14496 : if (state.dataRefrigCase->NumTransRefrigSystems > 0) {
10392 576 : for (int systemID = 1; systemID <= state.dataRefrigCase->NumTransRefrigSystems; ++systemID) {
10393 288 : TransSystem(systemID).UnmetEnergySavedMT = TransSystem(systemID).UnmetEnergyMT;
10394 288 : TransSystem(systemID).UnmetEnergySavedLT = TransSystem(systemID).UnmetEnergyLT;
10395 : }
10396 : }
10397 14496 : if (state.dataRefrigCase->NumSimulationSecondarySystems > 0) {
10398 864 : for (int secondID = 1; secondID <= state.dataRefrigCase->NumSimulationSecondarySystems; ++secondID) {
10399 576 : if (Secondary(secondID).CoilFlag) {
10400 0 : continue;
10401 : }
10402 576 : Secondary(secondID).UnmetEnergySaved = Secondary(secondID).UnmetEnergy;
10403 : }
10404 : }
10405 : // Following lagged variables set for consistency to value calculated prev time through HVAC time step loops
10406 14496 : if (allocated(state.dataHeatBal->HeatReclaimRefrigeratedRack)) {
10407 33888 : for (int IRack = 1; IRack <= state.dataRefrigCase->NumRefrigeratedRacks; ++IRack) {
10408 45120 : RefrigRack(IRack).LaggedUsedHVACCoil =
10409 22560 : state.dataHeatBal->HeatReclaimRefrigeratedRack(IRack).HVACDesuperheaterReclaimedHeatTotal;
10410 22560 : RefrigRack(IRack).LaggedUsedWaterHeater =
10411 22560 : state.dataHeatBal->HeatReclaimRefrigeratedRack(IRack).WaterHeatingDesuperheaterReclaimedHeatTotal;
10412 : }
10413 : }
10414 14496 : if (allocated(state.dataHeatBal->HeatReclaimRefrigCondenser)) {
10415 16992 : for (int ICond = 1; ICond <= state.dataRefrigCase->NumRefrigCondensers; ++ICond) {
10416 23040 : Condenser(ICond).LaggedUsedHVACCoil =
10417 11520 : state.dataHeatBal->HeatReclaimRefrigCondenser(ICond).HVACDesuperheaterReclaimedHeatTotal;
10418 11520 : Condenser(ICond).LaggedUsedWaterHeater =
10419 11520 : state.dataHeatBal->HeatReclaimRefrigCondenser(ICond).WaterHeatingDesuperheaterReclaimedHeatTotal;
10420 : }
10421 : }
10422 : } // repeating same time step
10423 :
10424 : } else { // using UseSysTimeStep as a flag for a chiller system
10425 :
10426 : // Used to determine whether the system time step is a repetition
10427 20432 : Real64 MyStepStartTime = state.dataGlobal->CurrentTime - state.dataGlobal->TimeStepZone + state.dataHVACGlobal->SysTimeElapsed;
10428 20432 : if (std::abs(MyStepStartTime - state.dataRefrigCase->MyStepStartTimeSaved) < MySmallNumber) {
10429 : // If the time step is repeated, need to return to correct values at start of time step
10430 19576 : if (state.dataRefrigCase->NumSimulationRefrigAirChillers > 0) {
10431 1644384 : for (int coilID = 1; coilID <= state.dataRefrigCase->NumSimulationRefrigAirChillers; ++coilID) {
10432 1624808 : WarehouseCoil(coilID).KgFrost = WarehouseCoil(coilID).KgFrostSaved;
10433 1624808 : WarehouseCoil(coilID).IceTemp = WarehouseCoil(coilID).IceTempSaved;
10434 : }
10435 : }
10436 : } else { // First time through this system time step or hvac loop,
10437 : // so set saved values to those in place at start of this time step
10438 856 : state.dataRefrigCase->MyStepStartTimeSaved = MyStepStartTime;
10439 856 : if (state.dataRefrigCase->NumSimulationRefrigAirChillers > 0) {
10440 71904 : for (int coilID = 1; coilID <= state.dataRefrigCase->NumSimulationRefrigAirChillers; ++coilID) {
10441 71048 : WarehouseCoil(coilID).KgFrostSaved = WarehouseCoil(coilID).KgFrost;
10442 71048 : WarehouseCoil(coilID).IceTempSaved = WarehouseCoil(coilID).IceTemp;
10443 : }
10444 : }
10445 : // Following lagged variables set for consistency to value calculated prev time through HVAC time step loops
10446 856 : if (allocated(state.dataHeatBal->HeatReclaimRefrigeratedRack)) {
10447 0 : for (int IRack = 1; IRack <= state.dataRefrigCase->NumRefrigeratedRacks; ++IRack) {
10448 0 : RefrigRack(IRack).LaggedUsedHVACCoil =
10449 0 : state.dataHeatBal->HeatReclaimRefrigeratedRack(IRack).HVACDesuperheaterReclaimedHeatTotal;
10450 0 : RefrigRack(IRack).LaggedUsedWaterHeater =
10451 0 : state.dataHeatBal->HeatReclaimRefrigeratedRack(IRack).WaterHeatingDesuperheaterReclaimedHeatTotal;
10452 : }
10453 : }
10454 856 : if (allocated(state.dataHeatBal->HeatReclaimRefrigCondenser)) {
10455 8560 : for (int ICond = 1; ICond <= state.dataRefrigCase->NumRefrigCondensers; ++ICond) {
10456 15408 : Condenser(ICond).LaggedUsedHVACCoil =
10457 7704 : state.dataHeatBal->HeatReclaimRefrigCondenser(ICond).HVACDesuperheaterReclaimedHeatTotal;
10458 7704 : Condenser(ICond).LaggedUsedWaterHeater =
10459 7704 : state.dataHeatBal->HeatReclaimRefrigCondenser(ICond).WaterHeatingDesuperheaterReclaimedHeatTotal;
10460 : }
10461 : }
10462 : } // if first time
10463 : } //(.NOT. UseSysTimeStep)
10464 :
10465 : } // warm up flag
10466 :
10467 468509 : if (state.dataGlobal->AnyEnergyManagementSystemInModel) {
10468 30183 : if (state.dataRefrigCase->NumRefrigSystems > 0) {
10469 32526 : for (int systemID = 1; systemID <= state.dataRefrigCase->NumRefrigSystems; ++systemID) {
10470 21684 : if (System(systemID).EMSOverrideOnTCondenseMin) {
10471 0 : System(systemID).TCondenseMin = System(systemID).EMSOverrideValueTCondenseMin;
10472 : } else {
10473 21684 : System(systemID).TCondenseMin = System(systemID).TCondenseMinInput;
10474 : }
10475 : }
10476 : }
10477 : }
10478 468509 : }
10479 :
10480 71428 : void InitRefrigerationPlantConnections(EnergyPlusData &state)
10481 : {
10482 :
10483 : // SUBROUTINE INFORMATION:
10484 : // AUTHOR B. Griffith
10485 : // DATE WRITTEN Dec 2010
10486 : // MODIFIED na
10487 : // RE-ENGINEERED na
10488 :
10489 : // PURPOSE OF THIS SUBROUTINE:
10490 : // do inits that should only occur when component model routines
10491 : // are entered from plant, for water cooled Condensers and Refrigeration Racks
10492 :
10493 : static constexpr std::string_view RoutineName = "InitRefrigerationPlantConnections";
10494 :
10495 71428 : auto &RefrigRack = state.dataRefrigCase->RefrigRack;
10496 71428 : auto &Condenser = state.dataRefrigCase->Condenser;
10497 :
10498 : // initialize plant topology information, if applicable
10499 71428 : if (state.dataRefrigCase->MyReferPlantScanFlag && allocated(state.dataPlnt->PlantLoop)) {
10500 4 : for (int RefCondLoop = 1; RefCondLoop <= state.dataRefrigCase->NumRefrigCondensers; ++RefCondLoop) {
10501 2 : if (Condenser(RefCondLoop).CondenserType != DataHeatBalance::RefrigCondenserType::Water) {
10502 1 : continue;
10503 : }
10504 :
10505 1 : bool errFlag = false;
10506 2 : PlantUtilities::ScanPlantLoopsForObject(state,
10507 1 : Condenser(RefCondLoop).Name,
10508 : DataPlant::PlantEquipmentType::RefrigSystemWaterCondenser,
10509 1 : Condenser(RefCondLoop).plantLoc,
10510 : errFlag,
10511 : _,
10512 : _,
10513 : _,
10514 : _,
10515 : _);
10516 1 : if (errFlag) {
10517 0 : ShowFatalError(state, "InitRefrigerationPlantConnections: Program terminated due to previous condition(s).");
10518 : }
10519 :
10520 1 : Real64 rho = state.dataPlnt->PlantLoop(Condenser(RefCondLoop).plantLoc.loopNum).glycol->getDensity(state, 20.0, RoutineName);
10521 :
10522 1 : if (Condenser(RefCondLoop).FlowType == CndsrFlowType::Constant) {
10523 0 : Condenser(RefCondLoop).MassFlowRateMax = Condenser(RefCondLoop).DesVolFlowRate * rho;
10524 1 : } else if (Condenser(RefCondLoop).FlowType == CndsrFlowType::Variable) {
10525 1 : Condenser(RefCondLoop).MassFlowRateMax = Condenser(RefCondLoop).VolFlowRateMax * rho;
10526 : }
10527 : }
10528 :
10529 6 : for (int RefCompRackLoop = 1; RefCompRackLoop <= state.dataRefrigCase->NumRefrigeratedRacks; ++RefCompRackLoop) {
10530 4 : if (RefrigRack(RefCompRackLoop).CondenserType != DataHeatBalance::RefrigCondenserType::Water) {
10531 3 : continue;
10532 : }
10533 :
10534 1 : bool errFlag = false;
10535 2 : PlantUtilities::ScanPlantLoopsForObject(state,
10536 1 : RefrigRack(RefCompRackLoop).Name,
10537 : DataPlant::PlantEquipmentType::RefrigerationWaterCoolRack,
10538 1 : RefrigRack(RefCompRackLoop).plantLoc,
10539 : errFlag,
10540 : _,
10541 : _,
10542 : _,
10543 : _,
10544 : _);
10545 1 : if (errFlag) {
10546 0 : ShowFatalError(state, "InitRefrigerationPlantConnections: Program terminated due to previous condition(s).");
10547 : }
10548 :
10549 1 : Real64 rho = state.dataPlnt->PlantLoop(RefrigRack(RefCompRackLoop).plantLoc.loopNum).glycol->getDensity(state, 20.0, RoutineName);
10550 :
10551 1 : if (RefrigRack(RefCompRackLoop).FlowType == CndsrFlowType::Constant) {
10552 0 : RefrigRack(RefCompRackLoop).MassFlowRateMax = RefrigRack(RefCompRackLoop).DesVolFlowRate * rho;
10553 1 : } else if (RefrigRack(RefCompRackLoop).FlowType == CndsrFlowType::Variable) {
10554 1 : RefrigRack(RefCompRackLoop).MassFlowRateMax = RefrigRack(RefCompRackLoop).VolFlowRateMax * rho;
10555 : }
10556 : }
10557 :
10558 2 : state.dataRefrigCase->MyReferPlantScanFlag = false;
10559 71426 : } else if (state.dataRefrigCase->MyReferPlantScanFlag && !state.dataGlobal->AnyPlantInModel) {
10560 0 : state.dataRefrigCase->MyReferPlantScanFlag = false;
10561 : }
10562 :
10563 71428 : if (state.dataGlobal->BeginEnvrnFlag && state.dataRefrigCase->InitRefrigerationPlantConnectionsMyBeginEnvrnFlag) {
10564 :
10565 : // do plant inits, if applicable
10566 12 : if (!state.dataRefrigCase->MyReferPlantScanFlag) {
10567 24 : for (int RefCondLoop = 1; RefCondLoop <= state.dataRefrigCase->NumRefrigCondensers; ++RefCondLoop) {
10568 12 : if (Condenser(RefCondLoop).CondenserType != DataHeatBalance::RefrigCondenserType::Water) {
10569 6 : continue;
10570 : }
10571 :
10572 6 : Real64 rho = state.dataPlnt->PlantLoop(Condenser(RefCondLoop).plantLoc.loopNum).glycol->getDensity(state, 20.0, RoutineName);
10573 :
10574 6 : if (Condenser(RefCondLoop).FlowType == CndsrFlowType::Constant) {
10575 0 : Condenser(RefCondLoop).MassFlowRateMax = Condenser(RefCondLoop).DesVolFlowRate * rho;
10576 6 : } else if (Condenser(RefCondLoop).FlowType == CndsrFlowType::Variable) {
10577 6 : Condenser(RefCondLoop).MassFlowRateMax = Condenser(RefCondLoop).VolFlowRateMax * rho;
10578 : }
10579 :
10580 18 : PlantUtilities::InitComponentNodes(
10581 6 : state, 0.0, Condenser(RefCondLoop).MassFlowRateMax, Condenser(RefCondLoop).InletNode, Condenser(RefCondLoop).OutletNode);
10582 : }
10583 36 : for (int RefCompRackLoop = 1; RefCompRackLoop <= state.dataRefrigCase->NumRefrigeratedRacks; ++RefCompRackLoop) {
10584 24 : if (RefrigRack(RefCompRackLoop).CondenserType != DataHeatBalance::RefrigCondenserType::Water) {
10585 18 : continue;
10586 : }
10587 :
10588 6 : Real64 rho = state.dataPlnt->PlantLoop(RefrigRack(RefCompRackLoop).plantLoc.loopNum).glycol->getDensity(state, 20.0, RoutineName);
10589 :
10590 6 : if (RefrigRack(RefCompRackLoop).FlowType == CndsrFlowType::Constant) {
10591 0 : RefrigRack(RefCompRackLoop).MassFlowRateMax = RefrigRack(RefCompRackLoop).DesVolFlowRate * rho;
10592 6 : } else if (RefrigRack(RefCompRackLoop).FlowType == CndsrFlowType::Variable) {
10593 6 : RefrigRack(RefCompRackLoop).MassFlowRateMax = RefrigRack(RefCompRackLoop).VolFlowRateMax * rho;
10594 : }
10595 :
10596 18 : PlantUtilities::InitComponentNodes(state,
10597 : 0.0,
10598 6 : RefrigRack(RefCompRackLoop).MassFlowRateMax,
10599 6 : RefrigRack(RefCompRackLoop).InletNode,
10600 6 : RefrigRack(RefCompRackLoop).OutletNode);
10601 : }
10602 : }
10603 12 : state.dataRefrigCase->InitRefrigerationPlantConnectionsMyBeginEnvrnFlag = false;
10604 :
10605 : } //(DataGlobals::BeginEnvrnFlag .AND. MyBeginEnvrnFlag)
10606 :
10607 71428 : if (!state.dataGlobal->BeginEnvrnFlag) {
10608 70656 : state.dataRefrigCase->InitRefrigerationPlantConnectionsMyBeginEnvrnFlag = true;
10609 : }
10610 71428 : }
10611 :
10612 170642 : void RefrigRackData::CalcRackSystem(EnergyPlusData &state)
10613 : {
10614 :
10615 : // SUBROUTINE INFORMATION:
10616 : // AUTHOR Richard Raustad, FSEC
10617 : // DATE WRITTEN Oct/Nov 2004
10618 : // MODIFIED Shirey, FSEC Dec 2004; Hudson, ORNL Feb 2007, July 2007
10619 : // RE-ENGINEERED na
10620 :
10621 : // PURPOSE OF THIS SUBROUTINE:
10622 : // Calculate compressor rack load, power, energy consumption, and condenser fan/pump power and consumption
10623 :
10624 : // METHODOLOGY EMPLOYED:
10625 : // Loop through cases attached to each rack and determine total load on compressor rack
10626 :
10627 : // REFERENCES:
10628 : // "Impact of ASHRAE Standard 62-1989 on Florida Supermarkets",
10629 : // Florida Solar Energy Center, FSEC-CR-910-96, Final Report, Oct. 1996
10630 :
10631 : Real64 COPFTempOutput; // Curve value for COPFTemp curve object
10632 : Real64 CondenserFrac; // Fraction of condenser power as a function of outdoor temperature
10633 : Real64 TotalHeatRejectedToZone; // Total compressor and condenser fan heat rejected to zone (based on CaseRAFactor)
10634 : int HeatRejectZoneNum; // Index to zone where heat is rejected
10635 : int HeatRejectZoneNodeNum; // Index to zone where heat is rejected
10636 : Real64 OutWbTemp; // Outdoor wet bulb temp at condenser air inlet node [C]
10637 : Real64 OutDbTemp; // Outdoor dry bulb temp at condenser air inlet node [C]
10638 : Real64 EffectTemp; // Effective outdoor temp when using evap condenser cooling [C]
10639 : Real64 HumRatIn; // Humidity ratio of inlet air to condenser [kg/kg]
10640 : Real64 HumRatOut; // Humidity ratio of outlet air from condenser (assumed saturated) [kg/kg]
10641 : Real64 BPress; // Barometric pressure at condenser air inlet node [Pa]
10642 : bool EvapAvail; // Control for evap condenser availability
10643 :
10644 170642 : auto &RefrigCase = state.dataRefrigCase->RefrigCase;
10645 170642 : auto &WalkIn = state.dataRefrigCase->WalkIn;
10646 170642 : auto &WarehouseCoil = state.dataRefrigCase->WarehouseCoil;
10647 170642 : auto &AirChillerSet = state.dataRefrigCase->AirChillerSet;
10648 :
10649 170642 : state.dataRefrigCase->TotalRackDeliveredCapacity = 0.0;
10650 170642 : state.dataRefrigCase->CompressorCOPactual = 0.0;
10651 170642 : state.dataRefrigCase->TotalCompressorPower = 0.0;
10652 170642 : state.dataRefrigCase->TotalCondenserFanPower = 0.0;
10653 170642 : state.dataRefrigCase->TotalCondenserPumpPower = 0.0;
10654 170642 : state.dataRefrigCase->TotalBasinHeatPower = 0.0;
10655 170642 : state.dataRefrigCase->TotalCondenserHeat = 0.0;
10656 170642 : TotalHeatRejectedToZone = 0.0;
10657 170642 : state.dataRefrigCase->TotalEvapWaterUseRate = 0.0;
10658 170642 : state.dataRefrigCase->RackSenCreditToZone = 0.0;
10659 170642 : state.dataRefrigCase->RackSenCreditToHVAC = 0.0;
10660 170642 : CondenserFrac = 0.0;
10661 170642 : EvapAvail = true;
10662 170642 : HeatRejectZoneNum = 0;
10663 170642 : HeatRejectZoneNodeNum = 0;
10664 :
10665 : // Loads for chiller sets are set in call to zone equipment element "SimAirChillerSet"
10666 : // (all chiller coils within a set are located in the same zone)
10667 : // (note non-zone, such as refrigeration, and zone equip, such as airchillersets, called at diff times)
10668 : // Loads are then defined for each chiller coil within the set in "CalculateAirChillerSet"
10669 : // In that subroutine, dispatch coils within each set in order specified for each zone
10670 : // Below will assign loads to refrigeration system or secondary loop
10671 : // Note that this routine will go through all refrigeration systems, but loads for multiple systems
10672 : // with interactions will not be known for the initial calls with first HVAC time step. They will,
10673 : // however, be repeated when the last chiller set is called from ZoneEquipmentManager
10674 : // that's why important where init goes, don't want to zero out data should keep
10675 170642 : if (state.dataRefrigCase->UseSysTimeStep) {
10676 0 : for (int CoilSetIndex = 1; CoilSetIndex <= state.dataRefrigCase->NumRefrigChillerSets; ++CoilSetIndex) {
10677 0 : AirChillerSet(CoilSetIndex).CalculateAirChillerSets(state);
10678 : }
10679 : }
10680 :
10681 170642 : if (this->NumCoils > 0) {
10682 0 : for (int CoilIndex = 1; CoilIndex <= this->NumCoils; ++CoilIndex) {
10683 0 : int CoilID = this->CoilNum(CoilIndex);
10684 : // already CALLed CalculateCoil(CoilID) in CoilSet specified order
10685 : // increment TotalCoolingLoad for Compressors/condenser on each system
10686 0 : state.dataRefrigCase->TotalRackDeliveredCapacity += WarehouseCoil(CoilID).TotalCoolingLoad;
10687 : // System(SysNum)%TotalCondDefrostCredit=System(SysNum)%TotalCondDefrostCredit + WarehouseCoil(CoilID)%HotDefrostCondCredit
10688 : } // NumCoils systems
10689 : } // System(SysNum)%NumCoils > 0
10690 :
10691 170642 : if (this->NumCases > 0) {
10692 408654 : for (int caseNum = 1; caseNum <= this->NumCases; ++caseNum) {
10693 238012 : int CaseID = this->CaseNum(caseNum);
10694 238012 : RefrigCase(CaseID).CalculateCase(state);
10695 :
10696 : // add evaporator load for all cases connected to rack
10697 238012 : state.dataRefrigCase->TotalRackDeliveredCapacity += RefrigCase(CaseID).TotalCoolingLoad;
10698 :
10699 : // sensible and latent case credits already calculated in "CalculateCase"
10700 : // Now need to calculate amount of condenser heat rejection that should be applied to zone
10701 : // (used when HeatRejectionLocation = LocationZone)
10702 : // if walk-ins are served by rack, user must specify heat rejection zone and 100% of heat
10703 : // rejection goes to that zone - that is, no heat rejection goes to the HVAC return air
10704 238012 : if (this->HeatRejectionLocation == HeatRejLocation::Zone) {
10705 62310 : if (this->NumWalkIns == 0) {
10706 62310 : TotalHeatRejectedToZone += RefrigCase(CaseID).TotalCoolingLoad * (1.0 - state.dataRefrigCase->CaseRAFactor);
10707 : // CaseRAFactor is a module variable calculated in CalculateCase
10708 : // find zone number of first case on rack (all cases are in the same zone
10709 : // if HeatRejectionLocation = LocationZone and no walk-ins)
10710 62310 : HeatRejectZoneNum = RefrigCase(this->CaseNum(1)).ActualZoneNum;
10711 62310 : HeatRejectZoneNodeNum = RefrigCase(this->CaseNum(1)).ZoneNodeNum;
10712 : } else { // have walk ins so no reduction in condenser heat rejection for caseRA factor
10713 0 : TotalHeatRejectedToZone += RefrigCase(CaseID).TotalCoolingLoad;
10714 : } // no walk ins
10715 : }
10716 : } // NumCases
10717 : } // Numcases on rack > 0
10718 :
10719 170642 : if (this->NumWalkIns > 0) {
10720 0 : for (int WalkInIndex = 1; WalkInIndex <= this->NumWalkIns; ++WalkInIndex) {
10721 0 : int WalkInID = this->WalkInNum(WalkInIndex);
10722 0 : WalkIn(WalkInID).CalculateWalkIn(state);
10723 0 : state.dataRefrigCase->TotalRackDeliveredCapacity += WalkIn(WalkInID).TotalCoolingLoad;
10724 0 : if (this->HeatRejectionLocation == HeatRejLocation::Zone) {
10725 0 : TotalHeatRejectedToZone += WalkIn(WalkInID).TotalCoolingLoad;
10726 0 : HeatRejectZoneNum = this->HeatRejectionZoneNum;
10727 0 : HeatRejectZoneNodeNum = this->HeatRejectionZoneNodeNum;
10728 : } // reject heat to zone
10729 : } // WalkInIndex
10730 : } // NumWalkIns>0
10731 :
10732 170642 : if (this->HeatRejectionLocation == HeatRejLocation::Zone) {
10733 62310 : COPFTempOutput = Curve::CurveValue(state, this->COPFTempPtr, state.dataLoopNodes->Node(HeatRejectZoneNodeNum).Temp);
10734 62310 : EvapAvail = false;
10735 : } else {
10736 108332 : if (this->OutsideAirNodeNum != 0) {
10737 106310 : OutDbTemp = state.dataLoopNodes->Node(this->OutsideAirNodeNum).Temp;
10738 106310 : BPress = state.dataLoopNodes->Node(this->OutsideAirNodeNum).Press;
10739 : } else {
10740 2022 : OutDbTemp = state.dataEnvrn->OutDryBulbTemp;
10741 2022 : BPress = state.dataEnvrn->OutBaroPress;
10742 : }
10743 108332 : EffectTemp = OutDbTemp;
10744 :
10745 : // IF schedule exists, evap condenser can be scheduled OFF
10746 : // Check schedule to determine evap condenser availability
10747 108332 : if (this->evapAvailSched != nullptr && this->evapAvailSched->getCurrentVal() == 0) {
10748 0 : EvapAvail = false;
10749 : }
10750 :
10751 : // Evaporative condensers will have their water flow shut off in cold months to avoid
10752 : // 'spectacular' icing problems. Ideally, the user will use the evaporative schedule input
10753 : // to set such a schedule. However, sometimes, users will use a single input deck to model
10754 : // one building in multiple climates, and may not think to put in such a schedule in the colder
10755 : // climates. To accommodate such applications, the variable EvapCutOutTdb is used as an extra
10756 : // check.
10757 108332 : if (OutDbTemp < EvapCutOutTdb) {
10758 49276 : EvapAvail = false;
10759 : }
10760 :
10761 108332 : if (this->CondenserType == DataHeatBalance::RefrigCondenserType::Evap && EvapAvail) {
10762 : // determine temps for evap cooling
10763 2026 : if (this->OutsideAirNodeNum != 0) {
10764 2026 : HumRatIn = state.dataLoopNodes->Node(this->OutsideAirNodeNum).HumRat;
10765 : } else {
10766 0 : HumRatIn = state.dataEnvrn->OutHumRat;
10767 : } // outsideairnode
10768 2026 : OutWbTemp = Psychrometrics::PsyTwbFnTdbWPb(state, OutDbTemp, HumRatIn, BPress);
10769 2026 : EffectTemp = OutWbTemp + (1.0 - this->EvapEffect) * (OutDbTemp - OutWbTemp);
10770 : } // evapAvail
10771 :
10772 : // Obtain water-cooled condenser inlet/outlet temps
10773 108332 : if (this->CondenserType == DataHeatBalance::RefrigCondenserType::Water) {
10774 2022 : this->InletTemp = state.dataLoopNodes->Node(this->InletNode).Temp;
10775 2022 : EffectTemp = state.dataLoopNodes->Node(this->InletNode).Temp + 5.0; // includes approach temp
10776 2022 : if (this->InletTemp < this->InletTempMin) {
10777 0 : if (this->LowTempWarnIndex == 0) {
10778 0 : ShowWarningMessage(state, format("Refrigeration:CompressorRack: {}", this->Name));
10779 0 : ShowContinueError(state,
10780 : "Water-cooled condenser inlet temp lower than minimum allowed temp. Check returning water temperature "
10781 : "and/or minimum temperature setpoints.");
10782 : } // LowTempWarnIndex
10783 0 : ShowRecurringWarningErrorAtEnd(state,
10784 0 : "Refrigeration Compressor Rack " + this->Name +
10785 : " - Condenser inlet temp lower than minimum allowed ... continues",
10786 0 : this->LowTempWarnIndex);
10787 : // END IF !LowTempWarn
10788 : } // InletTempMin
10789 : } // DataHeatBalance::RefrigCondenserType::Water
10790 :
10791 108332 : COPFTempOutput = Curve::CurveValue(state, this->COPFTempPtr, EffectTemp);
10792 : } // Location Zone
10793 :
10794 170642 : state.dataRefrigCase->CompressorCOPactual = this->RatedCOP * COPFTempOutput;
10795 :
10796 170642 : if (state.dataRefrigCase->CompressorCOPactual > 0.0) {
10797 170642 : state.dataRefrigCase->TotalCompressorPower = state.dataRefrigCase->TotalRackDeliveredCapacity / state.dataRefrigCase->CompressorCOPactual;
10798 170642 : state.dataRefrigCase->TotalCondenserHeat = state.dataRefrigCase->TotalCompressorPower + state.dataRefrigCase->TotalRackDeliveredCapacity;
10799 : } else {
10800 0 : if (this->ShowCOPWarning) {
10801 0 : ShowWarningError(state, format("Refrigeration:CompressorRack: {}", this->Name));
10802 0 : ShowContinueError(state, " The calculated COP has a value of zero or is negative. Refer to Engineering Documentation for");
10803 0 : ShowContinueError(state, " further explanation of Compressor Rack COP as a Function of Temperature Curve.");
10804 0 : this->ShowCOPWarning = false;
10805 : }
10806 : }
10807 :
10808 : // calculate condenser fan usage here if not water-cooled; if water-cooled, fan is in separate tower object
10809 : // fan loads > 0 only if the connected cases are operating
10810 170642 : if (state.dataRefrigCase->TotalRackDeliveredCapacity > 0.0 && this->CondenserType != DataHeatBalance::RefrigCondenserType::Water) {
10811 166236 : if (this->TotCondFTempPtr != 0) {
10812 83268 : if (this->HeatRejectionLocation == HeatRejLocation::Zone) {
10813 : CondenserFrac =
10814 15356 : max(0.0, min(1.0, Curve::CurveValue(state, this->TotCondFTempPtr, state.dataLoopNodes->Node(HeatRejectZoneNodeNum).Temp)));
10815 15356 : state.dataRefrigCase->TotalCondenserFanPower = this->CondenserFanPower * CondenserFrac;
10816 15356 : state.dataHeatBal->RefrigCaseCredit(HeatRejectZoneNum).SenCaseCreditToZone += this->CondenserFanPower * CondenserFrac;
10817 : } else {
10818 67912 : CondenserFrac = max(0.0, min(1.0, Curve::CurveValue(state, this->TotCondFTempPtr, EffectTemp)));
10819 67912 : state.dataRefrigCase->TotalCondenserFanPower = this->CondenserFanPower * CondenserFrac;
10820 : } // location zone
10821 : } else {
10822 82968 : CondenserFrac = 1.0;
10823 82968 : state.dataRefrigCase->TotalCondenserFanPower = this->CondenserFanPower * CondenserFrac;
10824 : } // TotCondFTempPtr
10825 : } // Cooling Water type
10826 :
10827 : // calculate evap water use and water pump power, if applicable
10828 : // assumes pump runs whenever evap cooling is available to minimize scaling
10829 170642 : if (this->CondenserType == DataHeatBalance::RefrigCondenserType::Evap && EvapAvail) {
10830 2026 : state.dataRefrigCase->TotalCondenserPumpPower = this->EvapPumpPower;
10831 2026 : HumRatOut = Psychrometrics::PsyWFnTdbTwbPb(state, EffectTemp, OutWbTemp, BPress);
10832 8104 : state.dataRefrigCase->TotalEvapWaterUseRate = this->CondenserAirFlowRate * CondenserFrac *
10833 4052 : Psychrometrics::PsyRhoAirFnPbTdbW(state, BPress, OutDbTemp, HumRatIn) * (HumRatOut - HumRatIn) /
10834 2026 : Psychrometrics::RhoH2O(EffectTemp);
10835 : } // evapAvail
10836 : // calculate basin water heater load
10837 170642 : if (this->CondenserType == DataHeatBalance::RefrigCondenserType::Evap) {
10838 4044 : if ((state.dataRefrigCase->TotalRackDeliveredCapacity == 0.0) && (EvapAvail) && (OutDbTemp < this->BasinHeaterSetPointTemp)) {
10839 0 : state.dataRefrigCase->TotalBasinHeatPower = max(0.0, this->BasinHeaterPowerFTempDiff * (this->BasinHeaterSetPointTemp - OutDbTemp));
10840 : // provide warning if no heater power exists
10841 0 : if (state.dataRefrigCase->TotalBasinHeatPower == 0.0) {
10842 0 : if (this->EvapFreezeWarnIndex == 0) {
10843 0 : ShowWarningMessage(
10844 : state,
10845 0 : format("Refrigeration Compressor Rack {} - Evap cooling of condenser underway with no basin heater power", this->Name));
10846 0 : ShowContinueError(state, "and condenser inlet air dry-bulb temp at or below the basin heater setpoint temperature.");
10847 0 : ShowContinueErrorTimeStamp(state, "Continuing simulation.");
10848 : } // EvapFreezeWarnIndex == 0
10849 0 : ShowRecurringWarningErrorAtEnd(state,
10850 0 : "Refrigeration Compressor Rack " + this->Name +
10851 : " - Evap cooling of condenser underway with no basin heater power ... continues",
10852 0 : this->EvapFreezeWarnIndex);
10853 : // END IF
10854 : } // TotalBasinHeatPower == 0 when at outdoor freezing conditions
10855 : } // cap
10856 : } // evap condenser type
10857 :
10858 : // add in compressor and condenser fan power to rack heat rejection variables if the heat rejection location is to the zone
10859 : // if walk-ins are served by rack, user must specify heat rejection zone and 100% of heat
10860 : // rejection goes to that zone - that is, no condenser heat rejection goes to the HVAC return air
10861 170642 : if (this->HeatRejectionLocation == HeatRejLocation::Zone) {
10862 62310 : state.dataRefrigCase->TotalCondenserHeat = state.dataRefrigCase->TotalRackDeliveredCapacity + state.dataRefrigCase->TotalCompressorPower +
10863 62310 : state.dataRefrigCase->TotalCondenserFanPower;
10864 62310 : if (HeatRejectZoneNum > 0 && state.dataRefrigCase->TotalRackDeliveredCapacity > 0.0) {
10865 61674 : if (this->NumWalkIns == 0) {
10866 : // rack report variables for condenser heat to Zone and/or HVAC
10867 : // The difference between TotalHeatRejectedToZone and TotalRackDeliveredCapacity is the heat sent to return air
10868 123348 : state.dataRefrigCase->RackSenCreditToZone =
10869 61674 : state.dataRefrigCase->TotalCondenserHeat * (TotalHeatRejectedToZone / state.dataRefrigCase->TotalRackDeliveredCapacity);
10870 61674 : state.dataRefrigCase->RackSenCreditToHVAC = state.dataRefrigCase->TotalCondenserHeat - state.dataRefrigCase->RackSenCreditToZone;
10871 : } else { // walkins present and no rack heat rejection goes to return air
10872 0 : state.dataRefrigCase->RackSenCreditToZone = state.dataRefrigCase->TotalCondenserHeat;
10873 0 : state.dataRefrigCase->RackSenCreditToHVAC = 0.0;
10874 : } // walkins present
10875 : // Update globals for use in Air Heat Balance and Zone Equipment Manager
10876 61674 : state.dataHeatBal->RefrigCaseCredit(HeatRejectZoneNum).SenCaseCreditToZone += state.dataRefrigCase->RackSenCreditToZone;
10877 :
10878 61674 : state.dataHeatBal->RefrigCaseCredit(HeatRejectZoneNum).SenCaseCreditToHVAC += state.dataRefrigCase->RackSenCreditToHVAC;
10879 : } // zone # > 0 and tot del cap > 0
10880 : } // rack heat rejection to zone
10881 170642 : }
10882 :
10883 170642 : void RefrigRackData::ReportRackSystem(EnergyPlusData &state, int const RackNum)
10884 : {
10885 :
10886 : // SUBROUTINE INFORMATION:
10887 : // AUTHOR Richard Raustad, FSEC
10888 : // DATE WRITTEN Oct/Nov 2004
10889 : // MODIFIED Hudson, ORNL Feb 2007, July 2007
10890 : // RE-ENGINEERED na
10891 :
10892 : // PURPOSE OF THIS SUBROUTINE:
10893 : // To report compressor rack variables
10894 :
10895 170642 : Real64 localTimeStep = (state.dataRefrigCase->UseSysTimeStep) ? state.dataHVACGlobal->TimeStepSys : state.dataGlobal->TimeStepZone;
10896 170642 : Real64 localTimeStepSec = localTimeStep * Constant::rSecsInHour;
10897 :
10898 170642 : this->RackCompressorPower = state.dataRefrigCase->TotalCompressorPower;
10899 170642 : this->RackElecConsumption = state.dataRefrigCase->TotalCompressorPower * localTimeStepSec;
10900 170642 : this->ActualCondenserFanPower = state.dataRefrigCase->TotalCondenserFanPower;
10901 170642 : this->CondenserFanConsumption = state.dataRefrigCase->TotalCondenserFanPower * localTimeStepSec;
10902 170642 : this->RackCapacity = state.dataRefrigCase->TotalRackDeliveredCapacity;
10903 170642 : this->RackCoolingEnergy = state.dataRefrigCase->TotalRackDeliveredCapacity * localTimeStepSec;
10904 170642 : this->RackCompressorCOP = state.dataRefrigCase->CompressorCOPactual;
10905 170642 : this->SensHVACCreditHeatRate = state.dataRefrigCase->RackSenCreditToHVAC;
10906 170642 : this->SensHVACCreditHeat = state.dataRefrigCase->RackSenCreditToHVAC * localTimeStepSec;
10907 170642 : this->SensZoneCreditHeatRate = state.dataRefrigCase->RackSenCreditToZone;
10908 170642 : this->SensZoneCreditHeat = state.dataRefrigCase->RackSenCreditToZone * localTimeStepSec;
10909 170642 : this->EvapWaterConsumpRate = state.dataRefrigCase->TotalEvapWaterUseRate;
10910 170642 : this->EvapWaterConsumption = state.dataRefrigCase->TotalEvapWaterUseRate * localTimeStepSec;
10911 170642 : this->ActualEvapPumpPower = state.dataRefrigCase->TotalCondenserPumpPower;
10912 170642 : this->EvapPumpConsumption = state.dataRefrigCase->TotalCondenserPumpPower * localTimeStepSec;
10913 170642 : this->BasinHeaterPower = state.dataRefrigCase->TotalBasinHeatPower;
10914 170642 : this->BasinHeaterConsumption = state.dataRefrigCase->TotalBasinHeatPower * localTimeStepSec;
10915 170642 : this->CondLoad = state.dataRefrigCase->TotalCondenserHeat;
10916 170642 : this->CondEnergy = state.dataRefrigCase->TotalCondenserHeat * localTimeStepSec;
10917 : // Set total rack heat rejection used for heat reclaim. Do not allow heat reclaim on stand alone (indoor) display cases.
10918 170642 : if (this->HeatRejectionLocation == HeatRejLocation::Zone) {
10919 62310 : state.dataHeatBal->HeatReclaimRefrigeratedRack(RackNum).AvailCapacity = 0.0;
10920 : } else {
10921 108332 : state.dataHeatBal->HeatReclaimRefrigeratedRack(RackNum).AvailCapacity =
10922 108332 : state.dataRefrigCase->TotalRackDeliveredCapacity * (1.0 + 1.0 / state.dataRefrigCase->CompressorCOPactual);
10923 : }
10924 :
10925 : // set water system demand request (if needed)
10926 170642 : if (this->EvapWaterSupplyMode == WaterSupply::FromTank) {
10927 2022 : int DemandARRID = this->EvapWaterTankDemandARRID;
10928 2022 : int RackTankID = this->EvapWaterSupTankID;
10929 2022 : state.dataWaterData->WaterStorage(RackTankID).VdotRequestDemand(DemandARRID) = this->EvapWaterConsumpRate;
10930 : }
10931 :
10932 170642 : SumZoneImpacts(state);
10933 170642 : }
10934 :
10935 481120 : void RefrigCaseData::CalculateCase(EnergyPlusData &state) // Absolute pointer to refrigerated case
10936 : {
10937 :
10938 : // SUBROUTINE INFORMATION:
10939 : // AUTHOR Richard Raustad and Don Shirey, FSEC
10940 : // DATE WRITTEN Oct/Nov 2004
10941 : // MODIFIED Therese Stovall, ORNL, May 2008
10942 : // RE-ENGINEERED na
10943 :
10944 : // PURPOSE OF THIS SUBROUTINE:
10945 : // To model refrigerated cases.
10946 :
10947 : // METHODOLOGY EMPLOYED:
10948 : // Case performance is based on a latent component calculated using a user input curve object. The sensible
10949 : // component is made up of all equipment loads (fan, light, anti-sweat) and the sensible case credit
10950 : // calculated during initialization. A master schedule is used for the refrigerated case operation and
10951 : // additional schedules control the lights and defrost operation.
10952 : // The fan is assumed to be off for Hot-Gas and Electric defrost.
10953 :
10954 : // Unmet loads are accumulated to be met the following time step. This usually occurs only during the
10955 : // defrost period, so the case calls for full capacity at the end of defrost to make up for the sensible
10956 : // case gains during the defrost period. This feature is also used if needed for restocking loads.
10957 :
10958 : // REFERENCES:
10959 :
10960 : // "Calculation of Humidity Effects on Energy Requirements of Refrigerated Display Cases",
10961 : // R. H. Howell, Ph. D., P.E., ASHRAE Paper, 3687 (CH-93-16-4) (RP-596)
10962 :
10963 : // "Effects of Store Relative Humidity on Refrigerated Display Case Performance",
10964 : // R. H. Howell, Ph. D., P.E., ASHRAE Paper, 3686 (CH-93-16-1) (RP-596)
10965 :
10966 : // "Analysis of Supermarket Dehumidification Alternatives",
10967 : // Electric Power Research Institute, EPRI TR-100352, Project 2891-03 Final Report, Nov. 1992.
10968 :
10969 : // "Impact of ASHRAE Standard 62-1989 on Florida Supermarkets",
10970 : // Florida Solar Energy Center, FSEC-CR-910-96, Final Report, Oct. 1996
10971 :
10972 481120 : Real64 CaseCreditFraction(0.0); // Reduction in case credits due to e.g., reduced door openings at night
10973 481120 : Real64 DefrostSchedule(0.0); // Display case defrost schedule
10974 481120 : Real64 DefrostDripDownSchedule(0.0); // Display case drip-down schedule (allows coil to drain after defrost)
10975 481120 : Real64 DefrostRatio(0.0); // ratio of defrost energy at current zone temp/humrat to defrost
10976 : // capacity at design condition
10977 481120 : Real64 LatentRatio(0.0); // ratio of latent capacity at current zone temp/humrat to
10978 : // latent capacity at design condition
10979 481120 : Real64 LatentCap_Actual(0.0); // Refrigerated case latent capacity at specific operating conditions
10980 481120 : Real64 LatentCaseCredit(0.0); // Latent case credit delivered to zone (W)
10981 481120 : Real64 SensibleCap_Actual(0.0); // Refrigerated case sensible capacity at specific operating conditions
10982 481120 : Real64 SensibleLoadPrime(0.0); // Sensible load due to cond, conv, rad, infil (W)
10983 481120 : Real64 TotalCap_Actual(0.0); // Refrigerated case total capacity at specific operating conditions
10984 481120 : Real64 TotalLightingLoad(0.0); // Total lighting energy rate (W)
10985 481120 : Real64 TotalFan(0.0); // Total fan energy rate (W)
10986 481120 : Real64 TotalAntiSweat(0.0); // Total anti-sweat heater energy rate (W)
10987 :
10988 : // Refrigerated display case defrost type (parameters)
10989 : // DefNone = 0
10990 : // DefOffCycle = 1
10991 : // DefHotFluid = 2
10992 : // DefHotFluidOnDemand = 3 (not available)
10993 : // DefHotFluidTerm = 4
10994 : // DefElectric = 5
10995 : // DefElectricOnDemand = 6 (not available)
10996 : // DefElectricTerm = 7
10997 :
10998 481120 : state.dataRefrigCase->CaseRAFactor = 0.0;
10999 :
11000 : // Zone relative humidity (%)
11001 481120 : Real64 ZoneRHPercent = Psychrometrics::PsyRhFnTdbWPb(state,
11002 481120 : state.dataLoopNodes->Node(this->ZoneNodeNum).Temp,
11003 481120 : state.dataLoopNodes->Node(this->ZoneNodeNum).HumRat,
11004 481120 : state.dataEnvrn->OutBaroPress) *
11005 481120 : 100.0;
11006 :
11007 : // Zone dew point (C)
11008 481120 : Real64 ZoneDewPoint = Psychrometrics::PsyTdpFnWPb(state, state.dataLoopNodes->Node(this->ZoneNodeNum).HumRat, state.dataEnvrn->OutBaroPress);
11009 :
11010 : // Display case operating temperature
11011 481120 : Real64 TCase = this->Temperature;
11012 :
11013 : // GET ALL SCHEDULES (note all schedules can be fractions if on/off a portion of time step)
11014 : // case schedule should be coincident with the zone time step otherwise the simulation proceeds
11015 :
11016 : // Current value of case operating (availability) schedule
11017 481120 : Real64 CaseSchedule = this->availSched->getCurrentVal();
11018 481120 : if (CaseSchedule <= 0) {
11019 0 : return;
11020 : }
11021 : // get defrost schedule
11022 481120 : if (this->defrostType > RefCaseDefrostType::None) {
11023 386698 : DefrostSchedule = this->defrostSched->getCurrentVal();
11024 386698 : DefrostDripDownSchedule = this->defrostDripDownSched->getCurrentVal();
11025 : // next statement In case user doesn't understand concept of drip down schedule
11026 386698 : DefrostDripDownSchedule = max(DefrostDripDownSchedule, DefrostSchedule);
11027 : } else {
11028 94422 : DefrostSchedule = 0.0;
11029 94422 : DefrostDripDownSchedule = 0.0;
11030 : }
11031 :
11032 : // get product stocking schedule and load due to product stocking, if no schedule exists load is 0
11033 481120 : Real64 StockingSchedule = (this->stockingSched != nullptr) ? this->stockingSched->getCurrentVal() : 0.0;
11034 :
11035 : // get lighting schedule and total load due to lighting
11036 481120 : Real64 LightingSchedule = this->lightingSched->getCurrentVal();
11037 :
11038 : // if case credit reduction fraction schedule exists, modify both sensible and latent case credits
11039 : // according to schedule - used to account for variable case envelope, such as night covers.
11040 481120 : CaseCreditFraction = (this->caseCreditFracSched != nullptr) ? this->caseCreditFracSched->getCurrentVal() : 1.0;
11041 :
11042 : // CALCULATE AUX LOADS DUE TO LIGHTS, FAN AND STOCKING
11043 481120 : TotalLightingLoad = this->DesignLighting * LightingSchedule;
11044 :
11045 : // Lighting energy to case
11046 481120 : Real64 TotalLightToCase = TotalLightingLoad * this->LightingFractionToCase;
11047 :
11048 : // Lighting energy to zone
11049 481120 : Real64 TotalLightToZone = TotalLightingLoad - TotalLightToCase;
11050 : // cycle fan according to defrost schedule
11051 : // turn fan on for none or off-cycle defrost types
11052 481120 : if (this->defrostType == RefCaseDefrostType::None || this->defrostType == RefCaseDefrostType::OffCycle) {
11053 244504 : TotalFan = this->DesignFanPower;
11054 : } else {
11055 236616 : TotalFan = this->DesignFanPower * (1.0 - DefrostDripDownSchedule);
11056 : }
11057 : // get load due to product stocking
11058 : // accumulate stocking loads for reporting to help evaluate any cumulative unmet loads problems
11059 : // only accumulate energy during actual simulation (so same if DD's are switched)
11060 :
11061 : // Total load due to stocking case product (W)
11062 481120 : Real64 StockingLoad = StockingSchedule * this->Length;
11063 481120 : if (!state.dataGlobal->WarmupFlag) {
11064 66144 : Real64 DeltaStockingEnergy = (StockingLoad * state.dataGlobal->TimeStepZoneSec);
11065 66144 : this->StockingEnergy += DeltaStockingEnergy;
11066 : } // warm up
11067 : // CALCULTE ALL LOADS INFLUENCED BY ZONE TEMPERATURE AND RH
11068 : // Anti-sweat heater capacity
11069 481120 : switch (this->AntiSweatControlType) {
11070 319378 : case ASHtrCtrlType::None: {
11071 319378 : TotalAntiSweat = 0.0;
11072 319378 : } break;
11073 0 : case ASHtrCtrlType::Constant: {
11074 0 : TotalAntiSweat = this->AntiSweatPower;
11075 0 : } break;
11076 78172 : case ASHtrCtrlType::Linear: {
11077 78172 : TotalAntiSweat =
11078 78172 : this->AntiSweatPower * min(1.0, max(0.0, 1.0 - (this->RatedAmbientRH - ZoneRHPercent) / (this->RatedAmbientRH - this->HumAtZeroAS)));
11079 78172 : TotalAntiSweat = max(this->MinimumASPower, TotalAntiSweat);
11080 78172 : } break;
11081 0 : case ASHtrCtrlType::DewPoint: {
11082 0 : TotalAntiSweat = this->AntiSweatPower * min(1.0, max(0.0, (ZoneDewPoint - TCase) / (this->RatedAmbientDewPoint - TCase)));
11083 0 : TotalAntiSweat = max(this->MinimumASPower, TotalAntiSweat);
11084 0 : } break;
11085 83570 : case ASHtrCtrlType::HeatBalance: {
11086 83570 : if (this->Rcase > 0.0) {
11087 83570 : TotalAntiSweat = (((ZoneDewPoint - state.dataLoopNodes->Node(this->ZoneNodeNum).Temp) * this->Height / Rair) +
11088 83570 : ((ZoneDewPoint - TCase) * this->Height / this->Rcase));
11089 83570 : TotalAntiSweat = min(this->AntiSweatPower, max(this->MinimumASPower, TotalAntiSweat));
11090 : } else {
11091 0 : TotalAntiSweat = 0.0;
11092 : }
11093 83570 : } break;
11094 0 : default: {
11095 : // should never execute this CASE statement
11096 0 : TotalAntiSweat = 0.0;
11097 0 : } break;
11098 : }
11099 481120 : TotalAntiSweat *= this->Length;
11100 :
11101 : // Anti-sweat heater energy to case
11102 481120 : Real64 TotalASHeaterToCase = this->ASHeaterFractionToCase * TotalAntiSweat;
11103 :
11104 : // Anti-sweat heater energy to zone
11105 481120 : Real64 TotalASHeaterToZone = TotalAntiSweat - TotalASHeaterToCase;
11106 :
11107 : // latent capacity correction term at off-design conditions
11108 481120 : switch (this->LatentEnergyCurveType) {
11109 375512 : case EnergyEqnForm::CaseTemperatureMethod: {
11110 375512 : Real64 LatCapModFrac = Curve::CurveValue(state, this->LatCapCurvePtr, TCase);
11111 375512 : LatentRatio = max(0.0, (1.0 - (this->RatedAmbientRH - ZoneRHPercent) * LatCapModFrac));
11112 375512 : } break;
11113 36392 : case EnergyEqnForm::RHCubic: {
11114 36392 : LatentRatio = max(0.0, Curve::CurveValue(state, this->LatCapCurvePtr, ZoneRHPercent));
11115 36392 : } break;
11116 69216 : case EnergyEqnForm::DPCubic: {
11117 69216 : LatentRatio = max(0.0, Curve::CurveValue(state, this->LatCapCurvePtr, ZoneDewPoint));
11118 69216 : } break;
11119 0 : default:
11120 0 : break;
11121 : }
11122 :
11123 : // calculate latent case load (assumes no moisture load due to stocking)
11124 : // assume sensible case credits continue to accumulate in case during defrost/dripdown,
11125 : // but latent credits/load and capacity only applied outside dripdownschedule
11126 :
11127 : // Latent load placed on case at actual zone conditions (W)
11128 481120 : Real64 LatentLoad = this->DesignLatentCap * LatentRatio * CaseCreditFraction * (1.0 - DefrostDripDownSchedule);
11129 481120 : LatentCaseCredit = -LatentLoad;
11130 : // adjust sensible loads and case credit for actual zone temperature
11131 : // If zone temp rises above rated ambient temperature, total load can exceed case design capacity,
11132 : // so unmet cooling loads are accumulated to meet in the next time step. (Case credit fraction allows
11133 : // extra insulation, e.g. night covers, or imitating a better insulated walk-in cooler)
11134 :
11135 : // used to look at extra sensible load due to excursions in zone T
11136 481120 : Real64 ZoneTempFactor = (state.dataLoopNodes->Node(ZoneNodeNum).Temp - TCase) / (this->RatedAmbientTemp - TCase);
11137 481120 : SensibleLoadPrime = this->DesignSensCaseCredit * ZoneTempFactor * CaseCreditFraction;
11138 :
11139 : // Sensible load due to heaters, lighting (W)
11140 481120 : Real64 SensibleLoadAux = TotalLightToCase + TotalASHeaterToCase + TotalFan + StockingLoad;
11141 :
11142 : // Total sensible load on case, may not = capacity applied (W)
11143 481120 : Real64 SensibleLoadTotal = SensibleLoadPrime + SensibleLoadAux;
11144 : // include lighting and anti-sweat power not attributed to case load to sensible case credit
11145 :
11146 : // Sensible case credit delivered to zone (W)
11147 481120 : Real64 SensibleCaseCredit = TotalLightToZone + TotalASHeaterToZone - SensibleLoadPrime;
11148 :
11149 : // FROST: keep track of frost build up on evaporator coil
11150 : // avoid accumulation during warm-up to avoid reverse dd test problem
11151 481120 : if (!state.dataGlobal->WarmupFlag) {
11152 66144 : Real64 DeltaFreezeKgFrost = LatentLoad * state.dataGlobal->TimeStepZoneSec / IcetoVaporEnthalpy;
11153 66144 : this->KgFrost += DeltaFreezeKgFrost;
11154 : }
11155 :
11156 481120 : if (TCase > TempTooHotToFrost) {
11157 36392 : this->KgFrost = 0.0;
11158 : }
11159 :
11160 481120 : Real64 DefrostLoad_Actual(0.0); // heat load on case due to defrost (W)
11161 481120 : Real64 DefrostCap_Actual(0.0); // power used to defrost (W)
11162 :
11163 : // DEFROST CALCULATIONS
11164 481120 : if (DefrostSchedule > 0.0) {
11165 9649 : if (this->defrostType != RefCaseDefrostType::None && this->defrostType != RefCaseDefrostType::OffCycle) {
11166 7297 : DefrostCap_Actual = this->DesignDefrostCap * DefrostSchedule;
11167 7297 : if (this->defrostType == RefCaseDefrostType::ElectricTerm || this->defrostType == RefCaseDefrostType::HotFluidTerm) {
11168 : // calculate correction term for temperature termination defrost control
11169 3248 : switch (this->DefrostEnergyCurveType) {
11170 3248 : case EnergyEqnForm::CaseTemperatureMethod: {
11171 3248 : Real64 DefCapModFrac = Curve::CurveValue(state, this->DefCapCurvePtr, TCase);
11172 3248 : DefrostRatio = max(0.0, (1.0 - (this->RatedAmbientRH - ZoneRHPercent) * DefCapModFrac));
11173 3248 : } break;
11174 0 : case EnergyEqnForm::RHCubic: {
11175 0 : DefrostRatio = max(0.0, Curve::CurveValue(state, this->DefCapCurvePtr, ZoneRHPercent));
11176 0 : } break;
11177 0 : case EnergyEqnForm::DPCubic: {
11178 0 : DefrostRatio = max(0.0, Curve::CurveValue(state, this->DefCapCurvePtr, ZoneDewPoint));
11179 0 : } break;
11180 0 : case EnergyEqnForm::None: {
11181 0 : DefrostRatio = 1.0;
11182 0 : } break;
11183 0 : default:
11184 0 : break;
11185 : }
11186 3248 : DefrostCap_Actual *= DefrostRatio;
11187 : }
11188 :
11189 : // frost load at start of time step (kg of ice)
11190 7297 : Real64 StartFrostKg = this->KgFrost;
11191 :
11192 : // Energy form of defrost capacity (J)
11193 7297 : Real64 defrostEnergy = DefrostCap_Actual * state.dataGlobal->TimeStepZoneSec;
11194 :
11195 : // Frost melted by defrost during a time step (kg)
11196 7297 : Real64 FrostMeltedKg = min(defrostEnergy / IceMeltEnthalpy, StartFrostKg);
11197 7297 : this->KgFrost -= FrostMeltedKg;
11198 :
11199 : // Reduce defrost heat load on case by amount of ice melted during time step
11200 : // However, don't reduce the defrost capacity applied
11201 :
11202 7297 : DefrostLoad_Actual = DefrostCap_Actual - FrostMeltedKg * IceMeltEnthalpy / state.dataGlobal->TimeStepZone / Constant::rSecsInHour;
11203 :
11204 7297 : if (!state.dataGlobal->WarmupFlag) { // avoid reverse dd test problems
11205 : // keep running total of defrost energy above that needed to melt frost for use in evaluating
11206 : // problems of excessive unmet loads
11207 1008 : this->DeltaDefrostEnergy = max(0.0, (defrostEnergy - (FrostMeltedKg * IceMeltEnthalpy)));
11208 1008 : this->DefrostEnergy += this->DeltaDefrostEnergy;
11209 : }
11210 : // If hot brine or hot gas is used for defrost, need to reduce condenser load
11211 : // Note this condenser credit is not applied in compressor-rack systems.
11212 7297 : if (this->defrostType != RefCaseDefrostType::Electric && this->defrostType != RefCaseDefrostType::ElectricOnDemand &&
11213 4256 : this->defrostType != RefCaseDefrostType::ElectricTerm) {
11214 3248 : this->HotDefrostCondCredit = DefrostCap_Actual * DefrostSchedule;
11215 : }
11216 7297 : } else { // no defrost or off-cycle defrost
11217 2352 : DefrostCap_Actual = 0.0;
11218 2352 : DefrostLoad_Actual = 0.0;
11219 2352 : this->KgFrost = 0.0;
11220 : // Off-Cycle defrost is assumed to melt all the ice
11221 : } // defrost type
11222 :
11223 : } else { // DefrostSchedule = 0, so no defrost load or capacity
11224 471471 : DefrostLoad_Actual = 0.0;
11225 471471 : DefrostCap_Actual = 0.0;
11226 : } // Defrost calculations
11227 :
11228 : //*** See if capacity meets load and manage accumulated stored energy ***********************************
11229 : // total load on case at zone conditions (W)
11230 481120 : Real64 TotalLoad_Actual = SensibleLoadTotal + LatentLoad + DefrostLoad_Actual;
11231 :
11232 : // Rate needed to serve all stored energy during single time step (W)
11233 481120 : Real64 StoredEnergyRate = this->StoredEnergy / state.dataGlobal->TimeStepZone / Constant::rSecsInHour;
11234 481120 : Real64 LoadRequested = TotalLoad_Actual + StoredEnergyRate;
11235 :
11236 : // prorate available cooling capacity for portion of time off due to drip down.
11237 481120 : Real64 CapAvail = this->DesignRatedCap * (1.0 - DefrostDripDownSchedule);
11238 481120 : if (CapAvail >= LoadRequested) {
11239 : // Have more at least as much capacity available as needed, even counting stored energy
11240 459305 : TotalCap_Actual = LoadRequested;
11241 459305 : SensibleCap_Actual = SensibleLoadTotal + StoredEnergyRate;
11242 459305 : LatentCap_Actual = LatentLoad;
11243 459305 : this->StoredEnergy = 0.0;
11244 : } else {
11245 : // Don't have as much capacity as needed (during dripdown or period following dripdown)
11246 21815 : TotalCap_Actual = CapAvail;
11247 21815 : LatentCap_Actual = min(LatentLoad, CapAvail); // Latent load should never be > capavail, but just in case...
11248 21815 : SensibleCap_Actual = TotalCap_Actual - LatentCap_Actual;
11249 21815 : if (!state.dataGlobal->WarmupFlag) {
11250 7285 : this->StoredEnergy += (TotalLoad_Actual - CapAvail) * state.dataGlobal->TimeStepZoneSec;
11251 : }
11252 : } // CapAvail vs Load requested
11253 :
11254 : // Reset DefrostLoad_Actual to zero for non-electric defrost types, for reporting purposes
11255 481120 : if (this->defrostType != RefCaseDefrostType::Electric && this->defrostType != RefCaseDefrostType::ElectricOnDemand &&
11256 398164 : this->defrostType != RefCaseDefrostType::ElectricTerm) {
11257 361772 : DefrostCap_Actual = 0.0;
11258 : }
11259 :
11260 481120 : Real64 caseRAFraction = min(0.8, this->RAFrac);
11261 481120 : state.dataRefrigCase->CaseRAFactor = (1.0 - ((0.8 - caseRAFraction) / 0.8)) * 0.5;
11262 :
11263 : // Update globals for use in ZoneTemperaturePredictorCorrector (Air Heat Balance) and
11264 : // Zone Equipment Manager. Sum case credits to zone and case credits to HVAC
11265 :
11266 : //** this needs a moisture variable NonAirSystemMoistureResponse (equivalent of NonAirSystemResponse) to properly
11267 : //** allocate moisture to the zone when the HVAC system is off.
11268 :
11269 : // Amount of sensible case credit applied to zone load (W)
11270 481120 : Real64 CaseSenCreditToZone = SensibleCaseCredit * (1.0 - state.dataRefrigCase->CaseRAFactor);
11271 :
11272 : // Amount of latent case credit applied to zone load (W)
11273 481120 : Real64 CaseLatCreditToZone = LatentCaseCredit * (1.0 - state.dataRefrigCase->CaseRAFactor);
11274 :
11275 : // Amount of sensible case credit applied to HVAC RA duct (W)
11276 481120 : Real64 CaseSenCreditToHVAC = SensibleCaseCredit * state.dataRefrigCase->CaseRAFactor;
11277 :
11278 : // Amount of latent case credit applied to HVAC RA duct (W)
11279 481120 : Real64 CaseLatCreditToHVAC = LatentCaseCredit * state.dataRefrigCase->CaseRAFactor;
11280 :
11281 481120 : state.dataHeatBal->RefrigCaseCredit(this->ActualZoneNum).SenCaseCreditToZone += CaseSenCreditToZone;
11282 481120 : state.dataHeatBal->RefrigCaseCredit(this->ActualZoneNum).LatCaseCreditToZone += CaseLatCreditToZone;
11283 481120 : state.dataHeatBal->RefrigCaseCredit(this->ActualZoneNum).SenCaseCreditToHVAC += CaseSenCreditToHVAC;
11284 481120 : state.dataHeatBal->RefrigCaseCredit(this->ActualZoneNum).LatCaseCreditToHVAC += CaseLatCreditToHVAC;
11285 :
11286 : // ReportRefrigeratedCase(CaseID)
11287 481120 : this->TotalCoolingLoad = TotalCap_Actual;
11288 481120 : this->TotalCoolingEnergy = TotalCap_Actual * state.dataGlobal->TimeStepZoneSec;
11289 481120 : this->SensCoolingEnergyRate = SensibleCap_Actual;
11290 481120 : this->SensCoolingEnergy = SensibleCap_Actual * state.dataGlobal->TimeStepZoneSec;
11291 481120 : this->LatCoolingEnergyRate = LatentCap_Actual;
11292 481120 : this->LatCoolingEnergy = LatentCap_Actual * state.dataGlobal->TimeStepZoneSec;
11293 :
11294 481120 : this->SensZoneCreditRate = CaseSenCreditToZone; // both positive or negative
11295 : // This rate can be positive or negative, split into separate output variables and always report positive value
11296 481120 : if (CaseSenCreditToZone <= 0.0) {
11297 446081 : this->SensZoneCreditCoolRate = -CaseSenCreditToZone;
11298 446081 : this->SensZoneCreditCool = -CaseSenCreditToZone * state.dataGlobal->TimeStepZoneSec;
11299 446081 : this->SensZoneCreditHeatRate = 0.0;
11300 446081 : this->SensZoneCreditHeat = 0.0;
11301 : } else {
11302 35039 : this->SensZoneCreditHeatRate = CaseSenCreditToZone;
11303 35039 : this->SensZoneCreditHeat = CaseSenCreditToZone * state.dataGlobal->TimeStepZoneSec;
11304 35039 : this->SensZoneCreditCoolRate = 0.0;
11305 35039 : this->SensZoneCreditCool = 0.0;
11306 : }
11307 :
11308 : // This rate should always be negative
11309 481120 : this->LatZoneCreditRate = CaseLatCreditToZone;
11310 481120 : this->LatZoneCredit = CaseLatCreditToZone * state.dataGlobal->TimeStepZoneSec;
11311 :
11312 481120 : this->SensHVACCreditRate = CaseSenCreditToHVAC;
11313 : // This rate can be positive or negative, split into separate output variables and always report positive value
11314 481120 : if (CaseSenCreditToHVAC <= 0.0) {
11315 448082 : this->SensHVACCreditCoolRate = -CaseSenCreditToHVAC;
11316 448082 : this->SensHVACCreditCool = -CaseSenCreditToHVAC * state.dataGlobal->TimeStepZoneSec;
11317 448082 : this->SensHVACCreditHeatRate = 0.0;
11318 448082 : this->SensHVACCreditHeat = 0.0;
11319 : } else {
11320 33038 : this->SensHVACCreditHeatRate = CaseSenCreditToHVAC;
11321 33038 : this->SensHVACCreditHeat = CaseSenCreditToHVAC * state.dataGlobal->TimeStepZoneSec;
11322 33038 : this->SensHVACCreditCoolRate = 0.0;
11323 33038 : this->SensHVACCreditCool = 0.0;
11324 : }
11325 :
11326 : // This rate should always be negative
11327 481120 : this->LatHVACCreditRate = CaseLatCreditToHVAC;
11328 481120 : this->LatHVACCredit = CaseLatCreditToHVAC * state.dataGlobal->TimeStepZoneSec;
11329 :
11330 481120 : this->ElecFanPower = TotalFan;
11331 481120 : this->ElecFanConsumption = TotalFan * state.dataGlobal->TimeStepZoneSec;
11332 481120 : this->ElecAntiSweatPower = TotalAntiSweat;
11333 481120 : this->ElecAntiSweatConsumption = TotalAntiSweat * state.dataGlobal->TimeStepZoneSec;
11334 481120 : this->ElecLightingPower = TotalLightingLoad;
11335 481120 : this->ElecLightingConsumption = TotalLightingLoad * state.dataGlobal->TimeStepZoneSec;
11336 481120 : this->ElecDefrostPower = DefrostCap_Actual;
11337 481120 : this->ElecDefrostConsumption = DefrostCap_Actual * state.dataGlobal->TimeStepZoneSec;
11338 :
11339 481120 : this->DefEnergyCurveValue = DefrostRatio;
11340 481120 : this->LatEnergyCurveValue = LatentRatio;
11341 :
11342 : //**************************************************************************************************
11343 : // Cap Energy and Kg Frost to avoid floating overflow errors
11344 : // 1-time warning is issued. It should be rare but could happen with unrealistic inputs.
11345 :
11346 : // Collect extra sensible load above design for possible warning if that is determining factor in
11347 : // excessively large stored energy
11348 481120 : if ((ZoneTempFactor * CaseCreditFraction) > 1.0) {
11349 111143 : if (!state.dataGlobal->WarmupFlag) {
11350 14973 : Real64 DeltaWarmEnvEnergy = (SensibleLoadPrime - this->DesignSensCaseCredit) * state.dataGlobal->TimeStepZoneSec;
11351 14973 : this->WarmEnvEnergy += DeltaWarmEnvEnergy;
11352 : }
11353 : }
11354 :
11355 481120 : if (this->DefrostEnergy > MyLargeNumber) {
11356 0 : this->DefrostEnergy = MyLargeNumber;
11357 : }
11358 481120 : if (this->WarmEnvEnergy > MyLargeNumber) {
11359 0 : this->WarmEnvEnergy = MyLargeNumber;
11360 : }
11361 481120 : if (this->StockingEnergy > MyLargeNumber) {
11362 0 : this->StockingEnergy = MyLargeNumber;
11363 : }
11364 481120 : if (this->StoredEnergy > MyLargeNumber) {
11365 0 : this->StoredEnergy = MyLargeNumber;
11366 0 : if (this->ShowStoreEnergyWarning) {
11367 0 : ShowWarningError(state, format("Refrigeration:Case: {}", this->Name));
11368 0 : if (this->StockingEnergy >= this->DefrostEnergy) {
11369 0 : if (this->StockingEnergy >= this->WarmEnvEnergy) {
11370 0 : ShowContinueError(state, " This case has insufficient capacity to meet excess energy associated with stocking.");
11371 0 : ShowContinueError(state, " Refer to documentation for further explanation of product stocking requirements and");
11372 0 : ShowContinueError(state, " Total Cooling Capacity.");
11373 : } else {
11374 0 : ShowContinueError(state,
11375 : " This case has insufficient capacity to meet excess energy associated with a zone environment temperature "
11376 : "greater than the design ambient for the case.");
11377 0 : ShowContinueError(state, " Refer to documentation for further explanation of ");
11378 0 : ShowContinueError(state, " Total Cooling Capacity.");
11379 : } // Stocking energy > warm environment energy
11380 : } else {
11381 0 : if (this->DefrostEnergy >= this->WarmEnvEnergy) {
11382 0 : ShowContinueError(state, " This case has insufficient capacity to meet excess energy associated with defrost.");
11383 0 : ShowContinueError(state, " Refer to documentation for further explanation of defrost control requirements and");
11384 0 : ShowContinueError(state, " recommendations regarding Total Cooling Capacity, Sensible Heat Ratio, and Defrost Capacity.");
11385 : } else {
11386 0 : ShowContinueError(state,
11387 : " This case has insufficient capacity to meet excess energy associated with a zone environment temperature "
11388 : "greater than the design ambient for the case.");
11389 0 : ShowContinueError(state, " Refer to documentation for further explanation of ");
11390 0 : ShowContinueError(state, " Total Cooling Capacity.");
11391 : } // defrost energy > warm environment energy
11392 : } // stock > defrost ELSE
11393 0 : this->ShowStoreEnergyWarning = false; // only give this warning once for any one case
11394 : } // showstoreenergy warning true
11395 : } // stored energy > large number
11396 :
11397 481120 : if (this->KgFrost > MyLargeNumber) {
11398 0 : this->KgFrost = MyLargeNumber;
11399 0 : if (this->ShowFrostWarning) {
11400 0 : ShowWarningError(state, format("Refrigeration:Case: {}", this->Name));
11401 0 : ShowContinueError(state, " This case has insufficient defrost capacity to remove the excess frost accumulation.");
11402 0 : ShowContinueError(state, " Refer to documentation for further explanation of product stocking requirements and");
11403 0 : ShowContinueError(state, " recommendations regarding Total Cooling Capacity, Sensible Heat Ratio, and Latent Heat Ratio.");
11404 0 : this->ShowFrostWarning = false;
11405 : }
11406 : }
11407 : }
11408 :
11409 1 : PlantComponent *RefrigCondenserData::factory(EnergyPlusData &state, std::string const &objectName)
11410 : {
11411 : // Process the input data for boilers if it hasn't been done already
11412 1 : if (state.dataRefrigCase->GetRefrigerationInputFlag) {
11413 0 : CheckRefrigerationInput(state);
11414 0 : state.dataRefrigCase->GetRefrigerationInputFlag = false;
11415 : }
11416 : // Now look for this particular object in list
11417 2 : for (auto &obj : state.dataRefrigCase->Condenser) {
11418 2 : if (obj.Name == objectName) {
11419 1 : return &obj;
11420 : }
11421 : }
11422 : // If we didn't find it, fatal
11423 : ShowFatalError(state, format("LocalRefrigCondenserFactory: Error getting inputs for object named: {}", objectName)); // LCOV_EXCL_LINE
11424 : // Shut up the compiler
11425 : return nullptr; // LCOV_EXCL_LINE
11426 : }
11427 :
11428 5 : void RefrigCondenserData::onInitLoopEquip(EnergyPlusData &state, [[maybe_unused]] const PlantLocation &calledFromLocation)
11429 : {
11430 5 : InitRefrigeration(state);
11431 5 : InitRefrigerationPlantConnections(state);
11432 5 : }
11433 :
11434 35133 : void RefrigCondenserData::simulate(EnergyPlusData &state,
11435 : [[maybe_unused]] const PlantLocation &calledFromLocation,
11436 : bool const FirstHVACIteration,
11437 : [[maybe_unused]] Real64 &CurLoad,
11438 : [[maybe_unused]] bool const RunFlag)
11439 : {
11440 :
11441 : // SUBROUTINE INFORMATION:
11442 : // AUTHOR Randy Hudson, ORNL
11443 : // DATE WRITTEN July 2007
11444 : // MODIFIED Therese Stovall, ORNL May 2008
11445 : // Brent Griffith, NREL Oct 2010, generalize fluid properties
11446 : // plant upgrades, moved where called from to SimPlantEquip from ManageNonZoneEquipment
11447 : // RE-ENGINEERED na
11448 :
11449 : // PURPOSE OF THIS SUBROUTINE:
11450 : // Simulates the water-cooled refrigeration condenser object.
11451 : // Modified to add condensers for detailed refrigeration systems and to
11452 : // avoid double-counting heat rejection that has been used in desuperheater
11453 : // hvac coils or water heaters.
11454 :
11455 : // METHODOLOGY EMPLOYED:
11456 : // Called from SimPlantEquip in PlantLoopEquipment , previously was called from Non-Zone Equipment Manager
11457 : // Flow is requested and the actual available flow is set. The outlet temperature is calculated.
11458 :
11459 : static constexpr std::string_view RoutineName("SimRefrigCondenser");
11460 35133 : int PlantInletNode(0);
11461 35133 : int PlantOutletNode(0);
11462 35133 : PlantLocation PlantLoc{};
11463 :
11464 35133 : InitRefrigerationPlantConnections(state);
11465 :
11466 35133 : std::string TypeName;
11467 35133 : std::string ErrIntro;
11468 :
11469 : // set variables depending upon system type
11470 35133 : PlantInletNode = this->InletNode;
11471 35133 : PlantOutletNode = this->OutletNode;
11472 35133 : PlantLoc = this->plantLoc;
11473 :
11474 35133 : state.dataRefrigCase->TotalCondenserHeat = this->CondLoad;
11475 35133 : TypeName = "Refrigeration:Condenser:WaterCooled";
11476 35133 : ErrIntro = "Condenser for refrigeration system ";
11477 :
11478 : // Current condenser is water cooled
11479 : // Make demand request on first HVAC iteration
11480 :
11481 : // get cooling fluid properties
11482 35133 : Real64 rho = state.dataPlnt->PlantLoop(PlantLoc.loopNum).glycol->getDensity(state, this->InletTemp, RoutineName);
11483 35133 : Real64 Cp = state.dataPlnt->PlantLoop(PlantLoc.loopNum).glycol->getSpecificHeat(state, this->InletTemp, RoutineName);
11484 :
11485 35133 : if (this->FlowType == CndsrFlowType::Variable && state.dataRefrigCase->TotalCondenserHeat > 0.0) {
11486 :
11487 34752 : this->OutletTemp = this->outletTempSched->getCurrentVal();
11488 :
11489 34752 : if (this->OutletTemp == this->InletTemp) {
11490 :
11491 0 : if (this->HighInletWarnIndex == 0) {
11492 0 : ShowSevereError(
11493 : state,
11494 0 : format("{}, \"{}\" : has inlet water temp equal to desired outlet temp. Excessive flow resulting. ", ErrIntro, this->Name));
11495 0 : ShowContinueError(state, "cooling water is not cold enough to reach desired outlet temperature");
11496 : }
11497 0 : ShowRecurringWarningErrorAtEnd(state,
11498 0 : ErrIntro + ", \"" + this->Name + "\" : has inlet water temp equal to desired outlet temp.... continues. ",
11499 0 : this->HighInletWarnIndex);
11500 0 : this->VolFlowRate = 9999.0;
11501 0 : this->MassFlowRate = this->VolFlowRate * rho;
11502 : } else {
11503 34752 : Real64 DeltaT = this->OutletTemp - this->InletTemp;
11504 34752 : this->MassFlowRate = state.dataRefrigCase->TotalCondenserHeat / Cp / DeltaT;
11505 : // Check for maximum flow in the component
11506 34752 : if (this->MassFlowRate > this->MassFlowRateMax) {
11507 0 : if (this->HighFlowWarnIndex == 0) {
11508 0 : ShowWarningMessage(state, format("{}{}", TypeName, this->Name));
11509 0 : ShowContinueError(state, "Requested condenser water mass flow rate greater than maximum allowed value. ");
11510 0 : ShowContinueError(state, "Flow reset to maximum value.");
11511 : } // HighFlowWarnIndex
11512 0 : ShowRecurringWarningErrorAtEnd(
11513 0 : state, ErrIntro + this->Name + " - Flow rate higher than maximum allowed ... continues", this->HighFlowWarnIndex);
11514 : // END IF
11515 0 : this->MassFlowRate = this->MassFlowRateMax;
11516 : }
11517 : } // compare outlet T to inlet T
11518 :
11519 381 : } else if (this->FlowType == CndsrFlowType::Constant && state.dataRefrigCase->TotalCondenserHeat > 0.0) {
11520 : // this part for constant flow condition
11521 0 : this->VolFlowRate = this->DesVolFlowRate;
11522 0 : this->MassFlowRate = this->VolFlowRate * rho;
11523 :
11524 381 : } else if (state.dataRefrigCase->TotalCondenserHeat == 0.0) {
11525 381 : this->MassFlowRate = 0.0;
11526 :
11527 : } // on flow type
11528 : // check against plant, might get changed.
11529 35133 : PlantUtilities::SetComponentFlowRate(state, this->MassFlowRate, PlantInletNode, PlantOutletNode, PlantLoc);
11530 :
11531 35133 : this->VolFlowRate = this->MassFlowRate / rho;
11532 :
11533 35133 : if (this->MassFlowRate > 0) {
11534 32550 : this->OutletTemp = state.dataRefrigCase->TotalCondenserHeat / (this->MassFlowRate * Cp) + state.dataLoopNodes->Node(PlantInletNode).Temp;
11535 : } else {
11536 2583 : this->OutletTemp = this->InletTemp;
11537 2583 : if ((state.dataRefrigCase->TotalCondenserHeat > 0.0) && (!FirstHVACIteration)) {
11538 :
11539 128 : ShowRecurringWarningErrorAtEnd(
11540 : state,
11541 32 : TypeName + this->Name +
11542 : "Water-cooled condenser has no cooling water flow. Heat is not being rejected from compressor rack condenser.",
11543 16 : this->NoFlowWarnIndex);
11544 : }
11545 : }
11546 : // Check outlet water temp for max value
11547 35133 : if (this->OutletTemp > this->OutletTempMax) {
11548 0 : if (this->HighTempWarnIndex == 0) {
11549 0 : ShowWarningMessage(state, format("{}{}", TypeName, this->Name));
11550 0 : ShowContinueError(state,
11551 : "Water-cooled condenser outlet temp higher than maximum allowed temp. Check flow rates and/or temperature setpoints.");
11552 : }
11553 0 : ShowRecurringWarningErrorAtEnd(
11554 0 : state, ErrIntro + this->Name + " - Condenser outlet temp higher than maximum allowed ... continues", this->HighTempWarnIndex);
11555 : }
11556 :
11557 35133 : this->UpdateCondenserOutletNode(state);
11558 35133 : }
11559 :
11560 1 : PlantComponent *RefrigRackData::factory(EnergyPlusData &state, std::string const &objectName)
11561 : {
11562 : // Process the input data for boilers if it hasn't been done already
11563 1 : if (state.dataRefrigCase->GetRefrigerationInputFlag) {
11564 0 : CheckRefrigerationInput(state);
11565 0 : state.dataRefrigCase->GetRefrigerationInputFlag = false;
11566 : }
11567 : // Now look for this particular object in list
11568 2 : for (auto &obj : state.dataRefrigCase->RefrigRack) {
11569 2 : if (obj.Name == objectName) {
11570 1 : return &obj;
11571 : }
11572 : }
11573 : // If we didn't find it, fatal
11574 : ShowFatalError(state, format("LocalRefrigRackFactory: Error getting inputs for object named: {}", objectName)); // LCOV_EXCL_LINE
11575 : // Shut up the compiler
11576 : return nullptr; // LCOV_EXCL_LINE
11577 : }
11578 :
11579 5 : void RefrigRackData::onInitLoopEquip(EnergyPlusData &state, [[maybe_unused]] const PlantLocation &calledFromLocation)
11580 : {
11581 5 : InitRefrigeration(state);
11582 5 : InitRefrigerationPlantConnections(state);
11583 5 : }
11584 :
11585 36285 : void RefrigRackData::simulate(EnergyPlusData &state,
11586 : [[maybe_unused]] const PlantLocation &calledFromLocation,
11587 : bool const FirstHVACIteration,
11588 : [[maybe_unused]] Real64 &CurLoad,
11589 : [[maybe_unused]] bool const RunFlag)
11590 : {
11591 :
11592 : // SUBROUTINE INFORMATION:
11593 : // AUTHOR Randy Hudson, ORNL
11594 : // DATE WRITTEN July 2007
11595 : // MODIFIED Therese Stovall, ORNL May 2008
11596 : // Brent Griffith, NREL Oct 2010, generalize fluid properties
11597 : // plant upgrades, moved where called from to SimPlantEquip from ManageNonZoneEquipment
11598 : // RE-ENGINEERED na
11599 :
11600 : // PURPOSE OF THIS SUBROUTINE:
11601 : // Simulates the water-cooled refrigeration condenser object.
11602 : // Modified to add condensers for detailed refrigeration systems and to
11603 : // avoid double-counting heat rejection that has been used in desuperheater
11604 : // hvac coils or water heaters.
11605 :
11606 : // METHODOLOGY EMPLOYED:
11607 : // Called from SimPlantEquip in PlantLoopEquipment , previously was called from Non-Zone Equipment Manager
11608 : // Flow is requested and the actual available flow is set. The outlet temperature is calculated.
11609 :
11610 : static constexpr std::string_view RoutineName("SimRefrigCondenser");
11611 36285 : int PlantInletNode(0);
11612 36285 : int PlantOutletNode(0);
11613 36285 : PlantLocation PlantLoc{};
11614 :
11615 36285 : InitRefrigerationPlantConnections(state);
11616 :
11617 36285 : std::string TypeName;
11618 36285 : std::string ErrIntro;
11619 :
11620 : // set variables depending upon system type
11621 36285 : PlantInletNode = this->InletNode;
11622 36285 : PlantOutletNode = this->OutletNode;
11623 36285 : PlantLoc = this->plantLoc;
11624 :
11625 72570 : state.dataRefrigCase->TotalCondenserHeat =
11626 36285 : state.dataHeatBal->HeatReclaimRefrigeratedRack(this->MyIdx).AvailCapacity - this->LaggedUsedWaterHeater - this->LaggedUsedHVACCoil;
11627 36285 : TypeName = "Refrigeration:CompressorRack:";
11628 36285 : ErrIntro = "Condenser for refrigeration rack ";
11629 :
11630 : // Current condenser is water cooled
11631 : // Make demand request on first HVAC iteration
11632 :
11633 : // get cooling fluid properties
11634 36285 : Real64 rho = state.dataPlnt->PlantLoop(PlantLoc.loopNum).glycol->getDensity(state, this->InletTemp, RoutineName);
11635 36285 : Real64 Cp = state.dataPlnt->PlantLoop(PlantLoc.loopNum).glycol->getSpecificHeat(state, this->InletTemp, RoutineName);
11636 :
11637 36285 : if (this->FlowType == CndsrFlowType::Variable && state.dataRefrigCase->TotalCondenserHeat > 0.0) {
11638 35904 : this->OutletTemp = this->outletTempSched->getCurrentVal();
11639 :
11640 35904 : if (this->OutletTemp == this->InletTemp) {
11641 :
11642 0 : if (this->HighInletWarnIndex == 0) {
11643 0 : ShowSevereError(
11644 : state,
11645 0 : format("{}, \"{}\" : has inlet water temp equal to desired outlet temp. Excessive flow resulting. ", ErrIntro, this->Name));
11646 0 : ShowContinueError(state, "cooling water is not cold enough to reach desired outlet temperature");
11647 : }
11648 0 : ShowRecurringWarningErrorAtEnd(state,
11649 0 : ErrIntro + ", \"" + this->Name + "\" : has inlet water temp equal to desired outlet temp.... continues. ",
11650 0 : this->HighInletWarnIndex);
11651 0 : this->VolFlowRate = 9999.0;
11652 0 : this->MassFlowRate = this->VolFlowRate * rho;
11653 : } else {
11654 35904 : Real64 DeltaT = this->OutletTemp - this->InletTemp;
11655 35904 : this->MassFlowRate = state.dataRefrigCase->TotalCondenserHeat / Cp / DeltaT;
11656 : // Check for maximum flow in the component
11657 35904 : if (this->MassFlowRate > this->MassFlowRateMax) {
11658 0 : if (this->HighFlowWarnIndex == 0) {
11659 0 : ShowWarningMessage(state, format("{}{}", TypeName, this->Name));
11660 0 : ShowContinueError(state, "Requested condenser water mass flow rate greater than maximum allowed value. ");
11661 0 : ShowContinueError(state, "Flow reset to maximum value.");
11662 : } // HighFlowWarnIndex
11663 0 : ShowRecurringWarningErrorAtEnd(
11664 0 : state, ErrIntro + this->Name + " - Flow rate higher than maximum allowed ... continues", this->HighFlowWarnIndex);
11665 : // END IF
11666 0 : this->MassFlowRate = this->MassFlowRateMax;
11667 : }
11668 : } // compare outlet T to inlet T
11669 :
11670 381 : } else if (this->FlowType == CndsrFlowType::Constant && state.dataRefrigCase->TotalCondenserHeat > 0.0) {
11671 : // this part for constant flow condition
11672 0 : this->VolFlowRate = this->DesVolFlowRate;
11673 0 : this->MassFlowRate = this->VolFlowRate * rho;
11674 :
11675 381 : } else if (state.dataRefrigCase->TotalCondenserHeat == 0.0) {
11676 381 : this->MassFlowRate = 0.0;
11677 :
11678 : } // on flow type
11679 : // check against plant, might get changed.
11680 36285 : PlantUtilities::SetComponentFlowRate(state, this->MassFlowRate, PlantInletNode, PlantOutletNode, PlantLoc);
11681 :
11682 36285 : this->VolFlowRate = this->MassFlowRate / rho;
11683 :
11684 36285 : if (this->MassFlowRate > 0) {
11685 33630 : this->OutletTemp = state.dataRefrigCase->TotalCondenserHeat / (this->MassFlowRate * Cp) + state.dataLoopNodes->Node(PlantInletNode).Temp;
11686 : } else {
11687 2655 : this->OutletTemp = this->InletTemp;
11688 2655 : if ((state.dataRefrigCase->TotalCondenserHeat > 0.0) && (!FirstHVACIteration)) {
11689 :
11690 128 : ShowRecurringWarningErrorAtEnd(
11691 : state,
11692 32 : TypeName + this->Name +
11693 : "Water-cooled condenser has no cooling water flow. Heat is not being rejected from compressor rack condenser.",
11694 16 : this->NoFlowWarnIndex);
11695 : }
11696 : }
11697 : // Check outlet water temp for max value
11698 36285 : if (this->OutletTemp > this->OutletTempMax) {
11699 0 : if (this->HighTempWarnIndex == 0) {
11700 0 : ShowWarningMessage(state, format("{}{}", TypeName, this->Name));
11701 0 : ShowContinueError(state,
11702 : "Water-cooled condenser outlet temp higher than maximum allowed temp. Check flow rates and/or temperature setpoints.");
11703 : }
11704 0 : ShowRecurringWarningErrorAtEnd(
11705 0 : state, ErrIntro + this->Name + " - Condenser outlet temp higher than maximum allowed ... continues", HighTempWarnIndex);
11706 : }
11707 :
11708 36285 : this->UpdateCondenserOutletNode(state);
11709 36285 : }
11710 :
11711 35133 : void RefrigCondenserData::UpdateCondenserOutletNode(EnergyPlusData &state) const
11712 : {
11713 :
11714 : // SUBROUTINE INFORMATION:
11715 : // AUTHOR Randy Hudson, ORNL
11716 : // DATE WRITTEN July 2007
11717 : // MODIFIED na
11718 : // RE-ENGINEERED na
11719 :
11720 : // PURPOSE OF THIS SUBROUTINE:
11721 : // Updates the node variables with local variables.
11722 :
11723 : // Pass all variables from inlet to outlet node
11724 35133 : PlantUtilities::SafeCopyPlantNode(state, this->InletNode, this->OutletNode);
11725 :
11726 : // Set outlet node variables that are possibly changed
11727 35133 : state.dataLoopNodes->Node(this->OutletNode).Temp = this->OutletTemp;
11728 35133 : }
11729 0 : void RefrigCondenserData::oneTimeInit([[maybe_unused]] EnergyPlusData &state)
11730 : {
11731 0 : }
11732 1 : void RefrigCondenserData::oneTimeInit_new([[maybe_unused]] EnergyPlusData &state)
11733 : {
11734 1 : }
11735 :
11736 36285 : void RefrigRackData::UpdateCondenserOutletNode(EnergyPlusData &state) const
11737 : {
11738 :
11739 : // SUBROUTINE INFORMATION:
11740 : // AUTHOR Randy Hudson, ORNL
11741 : // DATE WRITTEN July 2007
11742 : // MODIFIED na
11743 : // RE-ENGINEERED na
11744 :
11745 : // PURPOSE OF THIS SUBROUTINE:
11746 : // Updates the node variables with local variables.
11747 :
11748 : // Pass all variables from inlet to outlet node
11749 36285 : PlantUtilities::SafeCopyPlantNode(state, this->InletNode, this->OutletNode);
11750 :
11751 : // Set outlet node variables that are possibly changed
11752 36285 : state.dataLoopNodes->Node(this->OutletNode).Temp = this->OutletTemp;
11753 36285 : }
11754 0 : void RefrigRackData::oneTimeInit([[maybe_unused]] EnergyPlusData &state)
11755 : {
11756 0 : }
11757 :
11758 1 : void RefrigRackData::oneTimeInit_new([[maybe_unused]] EnergyPlusData &state)
11759 : {
11760 1 : }
11761 :
11762 395801 : void SimulateDetailedRefrigerationSystems(EnergyPlusData &state)
11763 : {
11764 :
11765 : // SUBROUTINE INFORMATION:
11766 : // AUTHOR Therese Stovall, ORNL, Assisted by Hugh Henderson
11767 : // DATE WRITTEN Spring 2008
11768 : // Based upon ManageRefrigeratedCaseRacks by Richard Raustad, FSEC
11769 : // Oct/Nov 2004, and MODIFIED by Shirey, FSEC Dec 2004
11770 : // RE-ENGINEERED na
11771 :
11772 : // PURPOSE OF THIS SUBROUTINE:
11773 : // This subroutine is called to simulate detailed refrigeration systems
11774 :
11775 : // METHODOLOGY EMPLOYED:
11776 : // Each refrigeration system is modeled by first simulating the attached refrigerated cases. The sum
11777 : // of the total heat transfer for all attached cases determines the load on the compressor rack.
11778 : // Iterations are used here to account for load transfer between independent refrigeration systems
11779 : // via mechanical subcoolers.
11780 : // The logical variable, UseSysTimeStep, determines whether we are evaluating only systems driven by
11781 : // ZoneEquipmentManager on the system time step, or only system driven by HVACManager on the zone time step.
11782 :
11783 : static constexpr std::string_view RoutineName = "SimulateDetailedRefrigerationSystems";
11784 395801 : Real64 constexpr MaxDelTFloatFrac = 0.5; // max fraction allowed for difference between case and evaporator temperature
11785 :
11786 395801 : auto &RefrigCase = state.dataRefrigCase->RefrigCase;
11787 395801 : auto &System = state.dataRefrigCase->System;
11788 395801 : auto &Condenser = state.dataRefrigCase->Condenser;
11789 395801 : auto &Subcooler = state.dataRefrigCase->Subcooler;
11790 395801 : auto &Secondary = state.dataRefrigCase->Secondary;
11791 395801 : auto &WalkIn = state.dataRefrigCase->WalkIn;
11792 395801 : auto &WarehouseCoil = state.dataRefrigCase->WarehouseCoil;
11793 395801 : auto &AirChillerSet = state.dataRefrigCase->AirChillerSet;
11794 395801 : auto &CoilSysCredit = state.dataRefrigCase->CoilSysCredit;
11795 :
11796 395801 : Real64 localTimeStep = (state.dataRefrigCase->UseSysTimeStep) ? state.dataHVACGlobal->TimeStepSys : state.dataGlobal->TimeStepZone;
11797 395801 : Real64 localTimeStepSec = localTimeStep * Constant::rSecsInHour;
11798 :
11799 : // Cascade condenser assumes a constant approach delta T (Tcond - Tevap), not f(load)
11800 :
11801 : // Loads for chiller sets are set in call to zone equipment element "SimAirChillerSet"
11802 : // (all chiller coils within a set are located in the same zone)
11803 : // (note non-zone, such as refrigeration, and zone equip, such as airchillersets, called at diff times)
11804 : // Loads are then defined for each chiller coil within the set in "CalculateAirChillerSet"
11805 : // In that subroutine, dispatch coils within each set in order specified for each zone
11806 : // Below will assign loads to refrigeration system or secondary loop
11807 : // Note that this routine will go through all refrigeration systems, but loads for multiple systems
11808 : // with interactions will not be known for the initial calls with first HVAC time step. They will,
11809 : // however, be repeated when the last chiller set is called from ZoneEquipmentManager
11810 : // that's why important where init goes, don't want to zero out data should keep
11811 395801 : if (state.dataRefrigCase->UseSysTimeStep) {
11812 3918805 : for (int CoilSetIndex = 1; CoilSetIndex <= state.dataRefrigCase->NumRefrigChillerSets; ++CoilSetIndex) {
11813 3562550 : AirChillerSet(CoilSetIndex).CalculateAirChillerSets(state);
11814 : }
11815 : }
11816 :
11817 : // Do refrigeration system loop outside of iterative solution to initialize time step and
11818 : // calculate case, walk-in, and secondary loop loads (that won't change during balance
11819 : // of refrigeration system iterations) and prepare initial estimates for the iterative system solution
11820 3689276 : for (auto &thisSys : System) {
11821 : // Only do those systems appropriate for this analysis, supermarket type on load time step or coil type on sys time step
11822 3293475 : if (((!state.dataRefrigCase->UseSysTimeStep) && (!thisSys.CoilFlag)) || ((state.dataRefrigCase->UseSysTimeStep) && (thisSys.CoilFlag))) {
11823 3293475 : if (thisSys.NumCases > 0) {
11824 278610 : for (int CaseIndex = 1; CaseIndex <= thisSys.NumCases; ++CaseIndex) {
11825 214800 : auto &thisCase = RefrigCase(thisSys.CaseNum(CaseIndex));
11826 214800 : thisCase.CalculateCase(state);
11827 : // TevapDesign calc in Get Input to meet lowest evap temp of any load on the system.
11828 : // Tevap needed is either fixed at this design value,
11829 : // or allowed to float to meet lowest T needed among all loads served by the system
11830 : // (Floating Tevap = Design Tevap unless load <= Design cap)
11831 214800 : if (thisSys.CompSuctControl == CompressorSuctionPressureCtrl::ConstantSuctionTemperature) {
11832 200646 : thisSys.TEvapNeeded = thisSys.TEvapDesign;
11833 : } else { // calculate floating T evap
11834 14154 : Real64 LoadFrac = min(1.0, (thisCase.TotalCoolingLoad / thisCase.DesignRatedCap));
11835 14154 : Real64 MaxTEvap = thisCase.Temperature - (thisCase.Temperature - thisCase.EvapTempDesign) * max(LoadFrac, MaxDelTFloatFrac);
11836 : // Compare Tevap for this case to max allowed for all previous cases on this suction group and set at the MINIMUM of the
11837 : // two
11838 14154 : if (CaseIndex == 1) { // note use case index, not caseid here to get first case on this suction group/system
11839 4044 : thisSys.TEvapNeeded = MaxTEvap;
11840 : } else {
11841 10110 : thisSys.TEvapNeeded = min(MaxTEvap, thisSys.TEvapNeeded);
11842 : }
11843 : } // floating or constant evap temperature
11844 : // increment TotalCoolingLoad for Compressors/condenser on each system and defrost condenser credits for heat recovery
11845 214800 : thisSys.TotalCoolingLoad += thisCase.TotalCoolingLoad;
11846 214800 : thisSys.TotalCondDefrostCredit += thisCase.HotDefrostCondCredit;
11847 : } // NumCases
11848 : } // Num of cases > 0
11849 :
11850 3293475 : if (thisSys.NumWalkIns > 0) {
11851 105612 : for (int WalkInIndex = 1; WalkInIndex <= thisSys.NumWalkIns; ++WalkInIndex) {
11852 52806 : auto &thisWalkIn = WalkIn(thisSys.WalkInNum(WalkInIndex));
11853 52806 : thisWalkIn.CalculateWalkIn(state);
11854 52806 : if (thisSys.CompSuctControl == CompressorSuctionPressureCtrl::ConstantSuctionTemperature) {
11855 50784 : thisSys.TEvapNeeded = thisSys.TEvapDesign;
11856 : } else { // calculate floating T evap
11857 2022 : Real64 LoadFrac = min(1.0, (thisWalkIn.TotalCoolingLoad / thisWalkIn.DesignRatedCap));
11858 : Real64 MaxTEvap =
11859 2022 : thisWalkIn.Temperature - (thisWalkIn.Temperature - thisWalkIn.TEvapDesign) * max(LoadFrac, MaxDelTFloatFrac);
11860 : // Compare maxTevap for this walk in to max allowed for cases and for all
11861 : // previous walk ins on this suction group and set at the MINIMUM of the two
11862 2022 : if (WalkInIndex == 1 && thisSys.NumCases == 0) {
11863 0 : thisSys.TEvapNeeded = MaxTEvap;
11864 : } else {
11865 2022 : thisSys.TEvapNeeded = min(MaxTEvap, thisSys.TEvapNeeded);
11866 : }
11867 : } // floating or constant evap temperature
11868 : // increment TotalCoolingLoad for Compressors/condenser on each system
11869 52806 : thisSys.TotalCoolingLoad += thisWalkIn.TotalCoolingLoad;
11870 52806 : thisSys.TotalCondDefrostCredit += thisWalkIn.HotDefrostCondCredit;
11871 : } // NumWalkIns systems
11872 : } // thisSys%NumWalkIns > 0
11873 :
11874 3293475 : if (thisSys.NumCoils > 0) {
11875 32775460 : for (int CoilIndex = 1; CoilIndex <= thisSys.NumCoils; ++CoilIndex) {
11876 29569165 : int CoilID = thisSys.CoilNum(CoilIndex);
11877 : // already CALLed CalculateCoil(CoilID) in CoilSet specified order
11878 29569165 : thisSys.TEvapNeeded = thisSys.TEvapDesign; // floating or constant evap temperature
11879 : // increment TotalCoolingLoad for Compressors/condenser on each system
11880 29569165 : thisSys.TotalCoolingLoad += WarehouseCoil(CoilID).TotalCoolingLoad;
11881 29569165 : thisSys.TotalCondDefrostCredit += WarehouseCoil(CoilID).HotDefrostCondCredit;
11882 : } // NumCoils systems
11883 : } // thisSys%NumCoils > 0
11884 :
11885 3293475 : if (thisSys.NumSecondarys > 0) {
11886 8088 : for (int SecondIndex = 1; SecondIndex <= thisSys.NumSecondarys; ++SecondIndex) {
11887 4044 : int SecondID = thisSys.SecondaryNum(SecondIndex);
11888 4044 : Secondary(SecondID).CalculateSecondary(state, SecondID);
11889 4044 : if (thisSys.CompSuctControl == CompressorSuctionPressureCtrl::ConstantSuctionTemperature) {
11890 4044 : thisSys.TEvapNeeded = thisSys.TEvapDesign;
11891 : } else { // check for lowest T evap design among the secondary systems and
11892 : // Compare Tevap for this second to max allowed for cases, walk ins, and
11893 : // for all previous secondary loops on this suction group and set
11894 : // at the MINIMUM (note secondary loops control capacity with
11895 : // brine flow rate, so don't float above their design evap temperature)
11896 0 : if (SecondIndex == 1 && thisSys.NumNonCascadeLoads == 0) {
11897 0 : thisSys.TEvapNeeded = Secondary(SecondID).TEvapDesign;
11898 : } else {
11899 0 : thisSys.TEvapNeeded = min(Secondary(SecondID).TEvapDesign, thisSys.TEvapNeeded);
11900 : }
11901 : } // floating or constant evap temperature
11902 : // increment TotalCoolingLoad for Compressors/condenser on each system
11903 4044 : thisSys.SumSecondaryLoopLoad += Secondary(SecondID).TotalCoolingLoad;
11904 4044 : thisSys.TotalCondDefrostCredit += Secondary(SecondID).HotDefrostCondCredit;
11905 : } // NumSecondarys systems
11906 : } // thisSys%NumSecondarys > 0
11907 :
11908 : // add suction pipe heat gains (W) if input by user
11909 : // Suction pipe heat gains aren't included in the reported total system load, but are heat gains that must be met in
11910 : // condenser and compressor loads. However, secondary dist piping and receiver gains are included
11911 : // in the total secondary system loads.
11912 3293475 : thisSys.PipeHeatLoad = 0.0;
11913 3293475 : if (thisSys.SumUASuctionPiping > MySmallNumber) {
11914 4044 : Real64 SuctionPipeZoneTemp = state.dataLoopNodes->Node(thisSys.SuctionPipeZoneNodeNum)
11915 4044 : .Temp; // Temperature for zone identified as environment for suction pipe heat gains, C
11916 4044 : thisSys.PipeHeatLoad = thisSys.SumUASuctionPiping * (SuctionPipeZoneTemp - thisSys.TEvapNeeded);
11917 : // pipe heat load is a positive number (ie. heat absorbed by pipe, so needs to be subtracted
11918 : // from refrigcasecredit (- for cooling zone, + for heating zone)
11919 4044 : int SuctionPipeActualZoneNum = thisSys.SuctionPipeActualZoneNum;
11920 4044 : if (state.dataRefrigCase->UseSysTimeStep) {
11921 0 : CoilSysCredit(SuctionPipeActualZoneNum).SenCreditToZoneRate -= thisSys.PipeHeatLoad;
11922 0 : CoilSysCredit(SuctionPipeActualZoneNum).ReportSenCoolingToZoneRate = -CoilSysCredit(SuctionPipeActualZoneNum).SenCreditToZoneRate;
11923 : }
11924 : // Can arrive here when load call to refrigeration looks for cases/walkin systems and usetimestep is .FALSE.
11925 8088 : if ((!state.dataRefrigCase->UseSysTimeStep) &&
11926 4044 : ((state.dataRefrigCase->NumSimulationCases > 0) || (state.dataRefrigCase->NumSimulationWalkIns > 0))) {
11927 4044 : state.dataHeatBal->RefrigCaseCredit(SuctionPipeActualZoneNum).SenCaseCreditToZone -= thisSys.PipeHeatLoad;
11928 : } // UseSysTimeStep
11929 : }
11930 : } //(((.NOT. UseSysTimeStep).AND.(.NOT. System(SysNum)%CoilFlag)).OR.((UseSysTimeStep).AND.(System(SysNum)%CoilFlag)))
11931 : } // SysNum
11932 :
11933 : // Need to know if mechanical subcoolers or cascade condensers or shared condensers
11934 : // are present. If so, energy transfer between
11935 : // detailed refrigeration systems requires additional iteration at this level.
11936 :
11937 395801 : int StartMechSubcoolLoop(3); // if no mechanical subcoolers transfer energy between system,
11938 789580 : if ((state.dataRefrigCase->NumSimulationMechSubcoolers > 0) || (state.dataRefrigCase->NumSimulationCascadeCondensers > 0) ||
11939 789580 : (state.dataRefrigCase->NumSimulationSharedCondensers > 0) || (state.dataRefrigCase->NumSimulationRefrigAirChillers > 0)) {
11940 364343 : StartMechSubcoolLoop = 1;
11941 : }
11942 :
11943 395801 : bool FirstSCLoop = true; // Flag first time through multi-system loop used when mech subcoolers present
11944 :
11945 1520288 : for (int LoopNum = StartMechSubcoolLoop; LoopNum <= 3;
11946 : ++LoopNum) { // Note, for cascade cond loads compared requiring 5 iterations to 3, no difference.
11947 :
11948 10866948 : for (int SysNum = 1; SysNum <= state.dataRefrigCase->NumRefrigSystems; ++SysNum) {
11949 9742461 : auto &thisSys = System(SysNum);
11950 : // Only do those systems appropriate for this analysis, supermarket type on load time step or coil type on sys time step
11951 9742461 : if (((!state.dataRefrigCase->UseSysTimeStep) && (!thisSys.CoilFlag)) || ((state.dataRefrigCase->UseSysTimeStep) && (thisSys.CoilFlag))) {
11952 9742461 : thisSys.SumMechSCLoad = 0.0;
11953 9742461 : thisSys.SumCascadeLoad = 0.0;
11954 9742461 : thisSys.SumCascadeCondCredit = 0.0;
11955 9742461 : thisSys.SumMechSCBenefit = 0.0;
11956 :
11957 9742461 : if ((state.dataRefrigCase->NumSimulationMechSubcoolers > 0) && (!FirstSCLoop)) {
11958 : // This loop places load on system providing mechanical subcooling
11959 24264 : for (int SubcoolID = 1; SubcoolID <= state.dataRefrigCase->NumSimulationSubcoolers; ++SubcoolID) {
11960 16176 : if (Subcooler(SubcoolID).subcoolerType == SubcoolerType::LiquidSuction) {
11961 8088 : continue;
11962 : }
11963 8088 : if (Subcooler(SubcoolID).MechSourceSysID != SysNum) {
11964 4044 : continue;
11965 : }
11966 : // don't have summechscload until second subcooler pass, set to zero on first pass
11967 4044 : thisSys.SumMechSCLoad += thisSys.MechSCLoad(SubcoolID);
11968 : // subcooler should not drive Tevap for supplying system,
11969 : // but check to see if T controlled can be met or if Tevap is at a higher temperature
11970 4044 : if (Subcooler(SubcoolID).MechControlTliqOut < thisSys.TEvapNeeded) {
11971 0 : ShowWarningError(state, format("Refrigeration:System: {}", thisSys.Name));
11972 0 : ShowContinueError(state, " Evaporating temperature greater than the controlled ");
11973 0 : ShowContinueError(state, format(" liquid outlet temperature for SUBCOOLER:{}", Subcooler(SubcoolID).Name));
11974 : }
11975 : } // SubcoolId
11976 :
11977 8088 : if (thisSys.NumSubcoolers > 0) {
11978 12132 : for (int SubcoolerIndex = 1; SubcoolerIndex <= thisSys.NumSubcoolers; ++SubcoolerIndex) {
11979 8088 : int SubcoolID = thisSys.SubcoolerNum(SubcoolerIndex);
11980 8088 : if (Subcooler(SubcoolID).subcoolerType == SubcoolerType::LiquidSuction) {
11981 4044 : continue;
11982 : }
11983 4044 : thisSys.SumMechSCBenefit = Subcooler(SubcoolID).MechSCTransLoad;
11984 : } // subcoolerindex
11985 : } // System(sysid)%numsubcoolers > 0
11986 : } // NumSimulationMechSubcoolers > 0 and not first loop
11987 :
11988 : // This loop places load on system absorbing heat from cascade condenser and &
11989 : // condenser heat reclaim credits from hot gas/brine defrosts
11990 9742461 : if ((thisSys.NumCascadeLoads > 0) && (!FirstSCLoop)) {
11991 8088 : for (int CascadeLoadIndex = 1; CascadeLoadIndex <= thisSys.NumCascadeLoads; ++CascadeLoadIndex) {
11992 4044 : int CascadeLoadID = thisSys.CascadeLoadNum(CascadeLoadIndex);
11993 4044 : if (thisSys.CompSuctControl == CompressorSuctionPressureCtrl::ConstantSuctionTemperature) {
11994 4044 : thisSys.TEvapNeeded = thisSys.TEvapDesign;
11995 : } else { // check for lowest T evap design among the CascadeLoad systems and
11996 : // Compare Tevap for this Cascade to max allowed for cases, walk ins, and
11997 : // for all previous CascadeLoad loops on this suction group and set
11998 : // at the MINIMUM
11999 0 : if (Condenser(CascadeLoadID).CascadeTempControl == CascadeCndsrTempCtrlType::TempSet) {
12000 : // if float then set tevap based upon other loads
12001 0 : if (CascadeLoadIndex == 1 && thisSys.NumNonCascadeLoads == 0) {
12002 0 : thisSys.TEvapNeeded = Condenser(CascadeLoadID).CascadeRatedEvapTemp;
12003 : } else {
12004 0 : thisSys.TEvapNeeded = min(Condenser(CascadeLoadID).CascadeRatedEvapTemp, thisSys.TEvapNeeded);
12005 : }
12006 : }
12007 : } // floating or constant system evap temperature
12008 : // increment Cascade condenser Loads for Compressors/condenser on each system
12009 : // place any defrost credits on the same system absorbing the cascade condenser load
12010 : // (CascadeSysID identifies the condenser producing the defrost credits, that is, the lower temp system)
12011 4044 : thisSys.SumCascadeLoad += Condenser(CascadeLoadID).CondLoad;
12012 4044 : thisSys.SumCascadeCondCredit += System(Condenser(CascadeLoadID).CascadeSysID).TotalCondDefrostCredit;
12013 :
12014 : } // NumCascadeLoads
12015 : } // thisSys%NumCascadeLoads > 0
12016 :
12017 : // only calc detailed system if have load (could be zero first time through if only load is cascade condenser)
12018 9742461 : thisSys.TotalSystemLoad = thisSys.TotalCoolingLoad + thisSys.SumSecondaryLoopLoad + thisSys.SumMechSCLoad + thisSys.SumCascadeLoad;
12019 9742461 : if (thisSys.TotalSystemLoad > 0.0) {
12020 9166860 : thisSys.CpSatVapEvap = thisSys.refrig->getSatSpecificHeat(state, thisSys.TEvapNeeded, 1.0, RoutineName);
12021 9166860 : thisSys.HCaseOut =
12022 9166860 : thisSys.refrig->getSatEnthalpy(state, thisSys.TEvapNeeded, 1.0, RoutineName) + thisSys.CpSatVapEvap * CaseSuperheat;
12023 : // Establish estimates to start solution loop
12024 9166860 : switch (Condenser(thisSys.CondenserNum(1)).CondenserType) {
12025 9142596 : case DataHeatBalance::RefrigCondenserType::Air: {
12026 9142596 : thisSys.TCondense = state.dataEnvrn->OutDryBulbTemp + 16.7;
12027 : // 16.7C is delta T at rating point for air-cooled condensers, just estimate, so ok for zone-located condensers
12028 9142596 : } break;
12029 16176 : case DataHeatBalance::RefrigCondenserType::Evap: {
12030 16176 : thisSys.TCondense = state.dataEnvrn->OutDryBulbTemp + 15.0;
12031 : // 15C is delta T at rating point for evap-cooled condensers
12032 16176 : } break;
12033 2022 : case DataHeatBalance::RefrigCondenserType::Water: {
12034 : // define starting estimate at temperature of water exiting condenser
12035 2022 : thisSys.TCondense = state.dataLoopNodes->Node(Condenser(thisSys.CondenserNum(1)).OutletNode).Temp;
12036 2022 : } break;
12037 6066 : case DataHeatBalance::RefrigCondenserType::Cascade: {
12038 : //?Don't need estimate for cascade condenser because it doesn't iterate?
12039 6066 : } break;
12040 0 : default:
12041 0 : break;
12042 : }
12043 :
12044 : // Produce first time step estimates, assume no subcoolers
12045 9166860 : thisSys.HSatLiqCond = thisSys.refrig->getSatEnthalpy(state, thisSys.TCondense, 0.0, RoutineName);
12046 9166860 : thisSys.CpSatLiqCond = thisSys.refrig->getSatSpecificHeat(state, thisSys.TCondense, 0.0, RoutineName);
12047 9166860 : thisSys.HCaseIn = thisSys.HSatLiqCond - thisSys.CpSatLiqCond * Condenser(thisSys.CondenserNum(1)).RatedSubcool;
12048 9166860 : thisSys.RefMassFlowtoLoads = thisSys.TotalSystemLoad / (thisSys.HCaseOut - thisSys.HCaseIn);
12049 9166860 : thisSys.RefMassFlowComps = thisSys.RefMassFlowtoLoads;
12050 :
12051 9166860 : if (thisSys.NumStages == 2) { // Two-stage compression system
12052 : // Initial guess for high-stage mass flow rate in two-stage compression systems
12053 4044 : thisSys.RefMassFlowHiStageComps = thisSys.RefMassFlowComps / 0.65;
12054 : }
12055 :
12056 9166860 : thisSys.CalcDetailedSystem(state, SysNum);
12057 :
12058 : bool DeRate; // If true, need to derate aircoils because load can't be met by system
12059 :
12060 : // With air chiller coils, don't use unmet energy, instead reduce capacity on coils to match avail compressor/cond capacity
12061 : // current loads on compressor, exclusive of unmet loads from prev time steps
12062 9166860 : Real64 CurrentLoads = thisSys.TotalSystemLoad + thisSys.LSHXTrans; // because compressor capacity rated from txv to comp inlet
12063 9166860 : if ((thisSys.CoilFlag) && (CurrentLoads > (thisSys.TotCompCapacity * 1.001))) {
12064 90934 : DeRate = true;
12065 90934 : FinalRateCoils(state, DeRate, SourceType::DetailedSystem, SysNum, CurrentLoads, thisSys.TotCompCapacity);
12066 90934 : thisSys.TotalCoolingLoad = 0.0;
12067 90934 : thisSys.TotalCondDefrostCredit = 0.0;
12068 1127963 : for (int CoilIndex = 1; CoilIndex <= thisSys.NumCoils; ++CoilIndex) {
12069 1037029 : int CoilID = thisSys.CoilNum(CoilIndex);
12070 : // already CALLed CalculateCoil(CoilID) in CoilSet specified order
12071 1037029 : if (thisSys.CompSuctControl == CompressorSuctionPressureCtrl::ConstantSuctionTemperature) {
12072 1037029 : thisSys.TEvapNeeded = thisSys.TEvapDesign;
12073 : } else { // calculate floating T evap
12074 0 : thisSys.TEvapNeeded = thisSys.TEvapDesign;
12075 0 : ShowWarningError(state, format("Refrigeration:System: {}", thisSys.Name));
12076 0 : ShowContinueError(state, " Floating evaporator temperature model not yet available for warehouse coil systems. ");
12077 : } // floating or constant evap temperature
12078 : // increment TotalCoolingLoad for Compressors/condenser on each system
12079 1037029 : thisSys.TotalCoolingLoad += WarehouseCoil(CoilID).TotalCoolingLoad;
12080 1037029 : thisSys.TotalCondDefrostCredit += WarehouseCoil(CoilID).HotDefrostCondCredit;
12081 : } // NumCoils systems
12082 90934 : if (thisSys.NumStages == 2 &&
12083 0 : thisSys.TotHiStageCompCapacity < (thisSys.TotalCoolingLoad + thisSys.LSHXTrans + thisSys.TotCompPower)) {
12084 0 : ShowRecurringWarningErrorAtEnd(state,
12085 0 : "Refrigeration:System: " + thisSys.Name +
12086 : ":The specified high-stage compressors for this system are unable to meet the sum "
12087 : "of the refrigeration loads, ",
12088 0 : thisSys.HiStageWarnIndex1);
12089 0 : ShowRecurringContinueErrorAtEnd(
12090 0 : state, " subcooler loads (if any), and low-stage compressor loads for this system.", thisSys.HiStageWarnIndex2);
12091 : } // Hi-stage capacity<(load+LSHX load + lo-stage compressor load)
12092 : } // CoilFlag (Numcoils > 0) and load > capacity
12093 :
12094 : } // thisSys%TotalSystemLoad > 0
12095 : } //(((.NOT. UseSysTimeStep).AND.(.NOT. thisSys%CoilFlag)).OR.((UseSysTimeStep).AND.(thisSys%CoilFlag)))
12096 : } // SysNum over NumRefrigSystems
12097 1124487 : FirstSCLoop = false;
12098 : } // LoopNum, three times for buildings with multiple detailed systems connected with mechanical subcoolers
12099 : // or cascade condensers or shared condensers or warehouse coils that might need to be de-rated
12100 :
12101 : // Dealing with unmet load has to be done outside iterative loop
12102 3689276 : for (int SysNum = 1; SysNum <= state.dataRefrigCase->NumRefrigSystems; ++SysNum) {
12103 3293475 : auto &thisSys = System(SysNum);
12104 : // Only do those systems appropriate for this analysis, supermarket type on load time step or coil type on sys time step
12105 6586950 : if ((((!state.dataRefrigCase->UseSysTimeStep) && (!thisSys.CoilFlag)) || ((state.dataRefrigCase->UseSysTimeStep) && (thisSys.CoilFlag))) &&
12106 3293475 : (!state.dataGlobal->WarmupFlag)) {
12107 194256 : Real64 CurrentLoads = thisSys.TotalSystemLoad + thisSys.LSHXTrans; // because compressor capacity rated from txv to comp inlet
12108 194256 : Real64 CurrentHiStageLoads(0.0); // Current loads on high-stage compressor, exclusive of unmet loads from
12109 194256 : if (thisSys.NumStages == 2) {
12110 576 : CurrentHiStageLoads = CurrentLoads + thisSys.TotCompPower;
12111 : } // NumStages==2
12112 194256 : if (thisSys.CoilFlag) {
12113 : // don't use 'unmet energy' with air chillers, see 'derate'
12114 182160 : thisSys.UnmetEnergy = 0.0;
12115 182160 : thisSys.UnmetHiStageEnergy = 0.0;
12116 : } else {
12117 : // Meeting current and possibly some portion of the previously unmet energy
12118 : // perhaps future interest in reporting percent of installed capacity used(or number of compressors) ?
12119 : // If the system compressors were unable to meet the current loads, save energy to be met in succeeding time step
12120 : // Note the unmet energy is turned into a rate and applied to the system load at the start of calccompressor
12121 12096 : thisSys.UnmetEnergy += (CurrentLoads - thisSys.TotCompCapacity) * state.dataGlobal->TimeStepZoneSec;
12122 12096 : if (thisSys.NumStages == 2) {
12123 576 : thisSys.UnmetHiStageEnergy += (CurrentHiStageLoads - thisSys.TotHiStageCompCapacity) * state.dataGlobal->TimeStepZoneSec;
12124 : }
12125 12096 : if (thisSys.UnmetEnergy > MyLargeNumber) {
12126 0 : thisSys.UnmetEnergy = MyLargeNumber;
12127 0 : if (state.dataRefrigCase->ShowUnmetEnergyWarning(SysNum)) {
12128 0 : ShowWarningError(state, format("Refrigeration:System: {}", thisSys.Name));
12129 0 : ShowContinueError(state, " The specified compressors for this system are unable to meet ");
12130 0 : ShowContinueError(state, " the sum of the refrigerated case loads and subcooler loads (if any) for this system.");
12131 0 : state.dataRefrigCase->ShowUnmetEnergyWarning(SysNum) = false;
12132 : } // show warning
12133 : } // > mylarge number
12134 12096 : if (thisSys.UnmetHiStageEnergy > MyLargeNumber) {
12135 0 : thisSys.UnmetHiStageEnergy = MyLargeNumber;
12136 0 : if (state.dataRefrigCase->ShowHiStageUnmetEnergyWarning(SysNum)) {
12137 0 : ShowWarningError(state, format("Refrigeration:System: {}", thisSys.Name));
12138 0 : ShowContinueError(state, " The specified high-stage compressors for this system are unable to meet ");
12139 0 : ShowContinueError(state, " the sum of the refrigerated case loads, subcooler loads (if any) and ");
12140 0 : ShowContinueError(state, " low-stage compressor loads for this system.");
12141 0 : state.dataRefrigCase->ShowHiStageUnmetEnergyWarning(SysNum) = false;
12142 : } // show warning
12143 : } // > mylarge number
12144 : } // numcoils > 0
12145 :
12146 : // Zone-located air-cooled condenser reject heat also has to be outside iterative loop
12147 194256 : if (thisSys.SystemRejectHeatToZone) {
12148 864 : int CondInletAirZoneNum = Condenser(thisSys.CondenserNum(1)).InletAirZoneNum;
12149 864 : if (state.dataRefrigCase->UseSysTimeStep) {
12150 0 : CoilSysCredit(CondInletAirZoneNum).SenCreditToZoneRate += thisSys.NetHeatRejectLoad; // Adding heat is positive
12151 0 : CoilSysCredit(CondInletAirZoneNum).ReportSenCoolingToZoneRate = -CoilSysCredit(CondInletAirZoneNum).SenCreditToZoneRate;
12152 : }
12153 : // Can arrive here when load call to refrigeration looks for cases/walkin systems and usetimestep is .FALSE.
12154 1728 : if ((!state.dataRefrigCase->UseSysTimeStep) &&
12155 864 : ((state.dataRefrigCase->NumSimulationCases > 0) || (state.dataRefrigCase->NumSimulationWalkIns > 0))) {
12156 864 : state.dataHeatBal->RefrigCaseCredit(CondInletAirZoneNum).SenCaseCreditToZone +=
12157 864 : thisSys.NetHeatRejectLoad; // Adding heat is positive
12158 : } // UseSystimestep
12159 : } // Reject heat to zone
12160 :
12161 : // Report variables
12162 194256 : thisSys.TotTransferLoad = thisSys.SumMechSCLoad - thisSys.SumMechSCBenefit + thisSys.SumSecondaryLoopLoad + thisSys.SumCascadeLoad;
12163 194256 : thisSys.TotTransferEnergy = thisSys.TotTransferLoad * localTimeStepSec;
12164 194256 : thisSys.PipeHeatEnergy = thisSys.PipeHeatLoad * localTimeStepSec;
12165 194256 : thisSys.TotalCoolingEnergy = thisSys.TotalCoolingLoad * localTimeStepSec;
12166 : } //(((.NOT. UseSysTimeStep).AND.(.NOT. System(SysNum)%CoilFlag)).OR.((UseSysTimeStep).AND.(System(SysNum)%CoilFlag))).and.not
12167 : // WarmupFlag
12168 : } // SysNum = 1,NumRefrigSystems
12169 :
12170 : // Update for sending to zone equipment manager. (note report variables are summed elsewhere)
12171 : // LatOutputProvided = CoilSysCredit(ZoneNum)%LatKgPerS_ToZoneRate
12172 : // SysOutputProvided = CoilSysCredit(ZoneNum)%SenCreditToZoneRate
12173 : // Note that case credit is negative for cooling, thus subtract positive value calculated for coil
12174 : // Note this is done whether or not the coils are derated.
12175 395801 : if (state.dataRefrigCase->UseSysTimeStep) {
12176 5343825 : for (int ZoneNum = 1; ZoneNum <= state.dataGlobal->NumOfZones; ++ZoneNum) {
12177 4987570 : auto &zoneCredit = CoilSysCredit(ZoneNum);
12178 418955880 : for (int CoilID = 1; CoilID <= state.dataRefrigCase->NumSimulationRefrigAirChillers; ++CoilID) {
12179 413968310 : auto &coil = WarehouseCoil(CoilID);
12180 413968310 : if (coil.ZoneNum != ZoneNum) {
12181 384399145 : continue;
12182 : }
12183 29569165 : zoneCredit.SenCreditToZoneRate -= coil.SensCreditRate;
12184 29569165 : zoneCredit.SenCreditToZoneEnergy = zoneCredit.SenCreditToZoneRate * localTimeStepSec;
12185 29569165 : zoneCredit.LatKgPerS_ToZoneRate -= coil.LatKgPerS_ToZone;
12186 29569165 : zoneCredit.LatCreditToZoneRate -= coil.LatCreditRate;
12187 29569165 : zoneCredit.LatCreditToZoneEnergy -= coil.LatCreditEnergy;
12188 : }
12189 : }
12190 : }
12191 :
12192 395801 : SumZoneImpacts(state);
12193 395801 : }
12194 :
12195 2022 : void SimulateDetailedTransRefrigSystems(EnergyPlusData &state)
12196 : {
12197 :
12198 : // SUBROUTINE INFORMATION:
12199 : // AUTHOR Brian A. Fricke, ORNL
12200 : // DATE WRITTEN Fall 2011
12201 : // RE-ENGINEERED na
12202 :
12203 : // PURPOSE OF THIS SUBROUTINE:
12204 : // This subroutine is called to simulate detailed transcritical CO2 refrigeration systems
12205 :
12206 : // METHODOLOGY EMPLOYED:
12207 : // Each refrigeration system is modeled by first simulating the attached refrigerated cases and
12208 : // walk-ins. The sum of the total heat transfer for all attached cases and walk-ins determines
12209 : // the load on the compressors. Iterations are used here to account for sharing of gas coolers
12210 : // between independent refrigeration systems.
12211 :
12212 : static constexpr std::string_view RoutineName = "SimulateDetailedTransRefrigSystems";
12213 :
12214 2022 : auto &RefrigCase = state.dataRefrigCase->RefrigCase;
12215 2022 : auto &TransSystem = state.dataRefrigCase->TransSystem;
12216 2022 : auto &GasCooler = state.dataRefrigCase->GasCooler;
12217 2022 : auto &WalkIn = state.dataRefrigCase->WalkIn;
12218 :
12219 2022 : Real64 localTimeStep = (state.dataRefrigCase->UseSysTimeStep) ? state.dataHVACGlobal->TimeStepSys : state.dataGlobal->TimeStepZone;
12220 2022 : Real64 localTimeStepSec = localTimeStep * Constant::rSecsInHour;
12221 :
12222 : // Do transcritical CO2 refrigeration system loop outside of iterative solution to initialize time step and
12223 : // calculate case and and walk-ins (that won't change during balance of refrigeration system iterations)
12224 : // and prepare initial estimates for the iterative system solution
12225 :
12226 : // TransCritSysFlag = .TRUE.
12227 4044 : for (auto &thisSys : TransSystem) {
12228 : // Only do those systems appropriate for this analysis, supermarket type on load time step
12229 2022 : if (thisSys.NumCasesMT > 0) {
12230 8088 : for (int CaseIndex = 1; CaseIndex <= thisSys.NumCasesMT; ++CaseIndex) {
12231 6066 : int CaseID = thisSys.CaseNumMT(CaseIndex);
12232 6066 : RefrigCase(CaseID).CalculateCase(state);
12233 : // TEvapDesignMT calc in Get Input to meet lowest evap temp of any MT load on the system.
12234 : // TEvapNeededMT is fixed at this design value.
12235 6066 : thisSys.TEvapNeededMT = thisSys.TEvapDesignMT;
12236 : // increment TotalCoolingLoad for Compressors/gas cooler on each system and defrost gas cooler credits for heat recovery
12237 6066 : thisSys.TotalCoolingLoadMT += RefrigCase(CaseID).TotalCoolingLoad;
12238 6066 : thisSys.TotalCondDefrostCredit += RefrigCase(CaseID).HotDefrostCondCredit;
12239 : } // NumCasesMT
12240 : } // Num of MT cases > 0
12241 :
12242 2022 : if (thisSys.NumCasesLT > 0) {
12243 10110 : for (int CaseIndex = 1; CaseIndex <= thisSys.NumCasesLT; ++CaseIndex) {
12244 8088 : int CaseID = thisSys.CaseNumLT(CaseIndex);
12245 8088 : RefrigCase(CaseID).CalculateCase(state);
12246 : // TEvapDesignLT calc in Get Input to meet lowest evap temp of any LT load on the system.
12247 : // TEvapNeededLT is fixed at this design value.
12248 8088 : thisSys.TEvapNeededLT = thisSys.TEvapDesignLT;
12249 : // increment TotalCoolingLoad for Compressors/gas cooler on each system and defrost gas cooler credits for heat recovery
12250 8088 : thisSys.TotalCoolingLoadLT += RefrigCase(CaseID).TotalCoolingLoad;
12251 8088 : thisSys.TotalCondDefrostCredit += RefrigCase(CaseID).HotDefrostCondCredit;
12252 : } // NumCasesLT
12253 : } // Num of LT cases > 0
12254 :
12255 2022 : if (thisSys.NumWalkInsMT > 0) {
12256 0 : for (int WalkInIndex = 1; WalkInIndex <= thisSys.NumWalkInsMT; ++WalkInIndex) {
12257 0 : int WalkInID = thisSys.WalkInNumMT(WalkInIndex);
12258 0 : WalkIn(WalkInID).CalculateWalkIn(state);
12259 : // TEvapDesignMT calc in Get Input to meet lowest evap temp of any MT load on the system.
12260 : // TEvapNeededMT is fixed at this design value.
12261 0 : thisSys.TEvapNeededMT = thisSys.TEvapDesignMT;
12262 : // increment TotalCoolingLoad for Compressors/gas cooler on each system
12263 0 : thisSys.TotalCoolingLoadMT += WalkIn(WalkInID).TotalCoolingLoad;
12264 0 : thisSys.TotalCondDefrostCredit += WalkIn(WalkInID).HotDefrostCondCredit;
12265 : } // NumWalkInsMT systems
12266 : } // thisSys%NumWalkInsMT > 0
12267 :
12268 2022 : if (thisSys.NumWalkInsLT > 0) {
12269 4044 : for (int WalkInIndex = 1; WalkInIndex <= thisSys.NumWalkInsLT; ++WalkInIndex) {
12270 2022 : int WalkInID = thisSys.WalkInNumLT(WalkInIndex);
12271 2022 : WalkIn(WalkInID).CalculateWalkIn(state);
12272 : // TEvapDesignLT calc in Get Input to meet lowest evap temp of any LT load on the system.
12273 : // TEvapNeeded is fixed at this design value.
12274 2022 : thisSys.TEvapNeededLT = thisSys.TEvapDesignLT;
12275 : // increment TotalCoolingLoad for Compressors/gas cooler on each system
12276 2022 : thisSys.TotalCoolingLoadLT += WalkIn(WalkInID).TotalCoolingLoad;
12277 2022 : thisSys.TotalCondDefrostCredit += WalkIn(WalkInID).HotDefrostCondCredit;
12278 : } // NumWalkInsLT systems
12279 : } // thisSys%NumWalkInsLT > 0
12280 :
12281 : // add suction pipe heat gains (W) if input by user
12282 : // Suction pipe heat gains aren't included in the reported total system load, but are heat gains that must be met in
12283 : // gas cooler and compressor loads.
12284 2022 : thisSys.PipeHeatLoadMT = 0.0;
12285 2022 : if (thisSys.SumUASuctionPipingMT > MySmallNumber) {
12286 0 : Real64 SuctionPipeZoneTemp = state.dataLoopNodes->Node(thisSys.SuctionPipeZoneNodeNumMT).Temp;
12287 0 : thisSys.PipeHeatLoadMT = thisSys.SumUASuctionPipingMT * (SuctionPipeZoneTemp - thisSys.TEvapNeededMT);
12288 : // pipe heat load is a positive number (ie. heat absorbed by pipe, so needs to be subtracted
12289 : // from refrigcasecredit (- for cooling zone, + for heating zone)
12290 0 : int SuctionPipeActualZoneNum = thisSys.SuctionPipeActualZoneNumMT;
12291 : // Can arrive here when load call to refrigeration looks for cases/walkin systems and usetimestep is .FALSE.
12292 0 : if ((!state.dataRefrigCase->UseSysTimeStep) &&
12293 0 : ((state.dataRefrigCase->NumSimulationCases > 0) || (state.dataRefrigCase->NumSimulationWalkIns > 0))) {
12294 0 : state.dataHeatBal->RefrigCaseCredit(SuctionPipeActualZoneNum).SenCaseCreditToZone -= thisSys.PipeHeatLoadMT;
12295 : } // UseSysTimeStep
12296 : }
12297 :
12298 2022 : thisSys.PipeHeatLoadLT = 0.0;
12299 2022 : if (thisSys.SumUASuctionPipingLT > MySmallNumber) {
12300 0 : Real64 SuctionPipeZoneTemp = state.dataLoopNodes->Node(thisSys.SuctionPipeZoneNodeNumLT).Temp;
12301 0 : thisSys.PipeHeatLoadLT = thisSys.SumUASuctionPipingLT * (SuctionPipeZoneTemp - thisSys.TEvapNeededLT);
12302 : // pipe heat load is a positive number (ie. heat absorbed by pipe, so needs to be subtracted
12303 : // from refrigcasecredit (- for cooling zone, + for heating zone)
12304 0 : int SuctionPipeActualZoneNum = thisSys.SuctionPipeActualZoneNumLT;
12305 : // Can arrive here when load call to refrigeration looks for cases/walkin systems and usetimestep is .FALSE.
12306 0 : if ((!state.dataRefrigCase->UseSysTimeStep) &&
12307 0 : ((state.dataRefrigCase->NumSimulationCases > 0) || (state.dataRefrigCase->NumSimulationWalkIns > 0))) {
12308 0 : state.dataHeatBal->RefrigCaseCredit(SuctionPipeActualZoneNum).SenCaseCreditToZone -= thisSys.PipeHeatLoadLT;
12309 : } // UseSysTimeStep
12310 : }
12311 :
12312 : } // SysNum
12313 :
12314 : // Need to know if shared gas coolers are present. If so, energy
12315 : // transfer between detailed transcritical refrigeration systems
12316 : // requires additional iteration at this level.
12317 :
12318 2022 : int StartMechSubcoolLoop(3); // if no mechanical subcoolers transfer energy between system, don't loop
12319 2022 : if (state.dataRefrigCase->NumSimulationSharedGasCoolers > 0) {
12320 0 : StartMechSubcoolLoop = 1;
12321 : }
12322 :
12323 4044 : for (int LoopNum = StartMechSubcoolLoop; LoopNum <= 3; ++LoopNum) {
12324 4044 : for (int SysNum = 1; SysNum <= state.dataRefrigCase->NumTransRefrigSystems; ++SysNum) {
12325 2022 : auto &sys = TransSystem(SysNum);
12326 : // Only do those systems appropriate for this analysis, supermarket type on load time step or coil type on sys time step
12327 : // only calc detailed system if have load
12328 2022 : sys.TotalSystemLoadMT = sys.TotalCoolingLoadMT;
12329 2022 : if (sys.transSysType == TransSysType::TwoStage) {
12330 2022 : sys.TotalSystemLoadLT = sys.TotalCoolingLoadLT;
12331 : }
12332 2022 : sys.TotalSystemLoad = sys.TotalSystemLoadLT + sys.TotalSystemLoadMT;
12333 2022 : if (sys.TotalSystemLoad > 0.0) {
12334 2022 : if (sys.transSysType == TransSysType::TwoStage) {
12335 2022 : sys.CpSatVapEvapLT = sys.refrig->getSatSpecificHeat(state, sys.TEvapNeededLT, 1.0, RoutineName);
12336 2022 : sys.HCaseOutLT = sys.refrig->getSatEnthalpy(state, sys.TEvapNeededLT, 1.0, RoutineName) + sys.CpSatVapEvapLT * TransCaseSuperheat;
12337 : }
12338 2022 : sys.CpSatVapEvapMT = sys.refrig->getSatSpecificHeat(state, sys.TEvapNeededMT, 1.0, RoutineName);
12339 2022 : sys.HCaseOutMT = sys.refrig->getSatEnthalpy(state, sys.TEvapNeededMT, 1.0, RoutineName) + sys.CpSatVapEvapMT * TransCaseSuperheat;
12340 :
12341 : // Produce first time step estimates.
12342 : // Assume no subcoolers and neglect flow through bypass.
12343 2022 : sys.TReceiver = sys.refrig->getSatTemperature(state, sys.PReceiver, RoutineName);
12344 2022 : sys.HSatLiqReceiver = sys.refrig->getSatEnthalpy(state, sys.TReceiver, 0.0, RoutineName);
12345 2022 : sys.CpSatLiqReceiver = sys.refrig->getSatSpecificHeat(state, sys.TReceiver, 0.0, RoutineName);
12346 2022 : sys.HCaseInMT = sys.HSatLiqReceiver;
12347 2022 : sys.HCaseInLT = sys.HSatLiqReceiver;
12348 2022 : sys.RefMassFlowtoLTLoads = 0.0;
12349 2022 : sys.RefMassFlowCompsLP = 0.0;
12350 2022 : sys.DelHSubcoolerDis = 0.0;
12351 2022 : sys.DelHSubcoolerSuc = 0.0;
12352 2022 : if (sys.transSysType == TransSysType::TwoStage) {
12353 2022 : sys.RefMassFlowtoLTLoads = sys.TotalSystemLoadLT / (sys.HCaseOutLT - sys.HCaseInLT);
12354 2022 : sys.RefMassFlowCompsLP = sys.RefMassFlowtoLTLoads;
12355 : } // (thisSys%TransSysType == 2)
12356 2022 : sys.RefMassFlowtoMTLoads = sys.TotalSystemLoadMT / (sys.HCaseOutMT - sys.HCaseInMT);
12357 2022 : sys.RefMassFlowCompsHP = sys.RefMassFlowtoLTLoads + sys.RefMassFlowtoMTLoads;
12358 :
12359 2022 : sys.CalcDetailedTransSystem(state, SysNum);
12360 : // TransCritSysFlag = .FALSE.
12361 :
12362 : } // TransSystem(SysNum)%TotalSystemLoad > 0
12363 : } // SysNum over NumRefrigSystems
12364 : } // LoopNum, three times for buildings with multiple detailed systems connected with shared gas coolers
12365 :
12366 : // Unmet load is done outside iterative loop
12367 4044 : for (int SysNum = 1; SysNum <= state.dataRefrigCase->NumTransRefrigSystems; ++SysNum) {
12368 2022 : auto &sys = TransSystem(SysNum);
12369 : // Only do those systems appropriate for this analysis, supermarket type on load time step or coil type on sys time step
12370 2022 : if ((!state.dataRefrigCase->UseSysTimeStep) && (!state.dataGlobal->WarmupFlag)) {
12371 288 : Real64 CurrentLoads = sys.TotalSystemLoad;
12372 : // Meeting current and possibly some portion of the previously unmet energy
12373 : // perhaps future interest in reporting percent of installed capacity used(or number of compressors) ?
12374 : // If the system compressors were unable to meet the current loads, save energy to be met in succeeding time step
12375 : // Note the unmet energy is turned into a rate and applied to the system load at the start of calccompressor
12376 288 : sys.UnmetEnergy += (CurrentLoads - sys.TotCompCapacity) * state.dataGlobal->TimeStepZoneSec;
12377 :
12378 288 : if (sys.UnmetEnergy > MyLargeNumber) {
12379 0 : sys.UnmetEnergy = MyLargeNumber;
12380 0 : if (state.dataRefrigCase->ShowUnmetEnergyWarningTrans(SysNum)) {
12381 0 : ShowWarningError(state, format("Refrigeration:TranscriticalSystem: {}", sys.Name));
12382 0 : ShowContinueError(state, " The specified compressors for this system are unable to meet ");
12383 0 : ShowContinueError(state, " the sum of the refrigerated case loads and subcooler loads (if any) for this system.");
12384 0 : state.dataRefrigCase->ShowUnmetEnergyWarningTrans(SysNum) = false;
12385 : } // show warning
12386 : } // > mylarge number
12387 :
12388 : // Zone-located air-cooled gas cooler reject heat also has to be outside iterative loop
12389 288 : if (sys.SystemRejectHeatToZone) {
12390 0 : int CondInletAirZoneNum = GasCooler(sys.GasCoolerNum(1)).InletAirZoneNum;
12391 : // Can arrive here when load call to refrigeration looks for cases/walkin systems and usetimestep is .FALSE.
12392 0 : if ((!state.dataRefrigCase->UseSysTimeStep) &&
12393 0 : ((state.dataRefrigCase->NumSimulationCases > 0) || (state.dataRefrigCase->NumSimulationWalkIns > 0))) {
12394 0 : state.dataHeatBal->RefrigCaseCredit(CondInletAirZoneNum).SenCaseCreditToZone += sys.NetHeatRejectLoad; // Adding heat is positive
12395 : } // UseSystimestep
12396 : } // Reject heat to zone
12397 :
12398 : // Report variables
12399 288 : sys.PipeHeatEnergy = (sys.PipeHeatLoadMT + sys.PipeHeatLoadLT) * localTimeStepSec;
12400 288 : sys.TotalCoolingEnergy = (sys.TotalCoolingLoadMT + sys.TotalCoolingLoadMT) * localTimeStepSec;
12401 : } //(.NOT. UseSysTimeStep).AND. (.not. WarmupFlag)
12402 : } // SysNum = 1,NumTransRefrigSystems
12403 :
12404 : // Update for sending to zone equipment manager. (note report variables are summed elsewhere)
12405 :
12406 2022 : SumZoneImpacts(state);
12407 2022 : }
12408 :
12409 9166860 : void RefrigSystemData::CalcDetailedSystem(EnergyPlusData &state, int const SysNum)
12410 : {
12411 :
12412 : // SUBROUTINE INFORMATION:
12413 : // AUTHOR Therese Stovall, ORNL, Assisted by Hugh Henderson
12414 : // DATE WRITTEN Spring 2008
12415 : // Using condenser solution algorithms written by Richard Raustad, FSEC
12416 : // Oct/Nov 2004, and MODIFIED by Shirey, FSEC Dec 2004, and Hudson, ORNL in 2007
12417 : // RE-ENGINEERED na
12418 :
12419 : // PURPOSE OF THIS SUBROUTINE:
12420 : // Find the power and energy needed to meet the refrigeration loads for a particular detailed
12421 : // refrigeration system comprised of multiple cases, one condenser, and multiple compressors.
12422 :
12423 : // METHODOLOGY EMPLOYED:
12424 : // Sum the refrigeration loads on the system and determine the required evaporating temperature.
12425 : // Using the initial estimate for condensing temperature, dispatch the compressors to
12426 : // determine the needed power, energy consumption, and refrigerant mass flow.
12427 : // Calculate the condenser fan/pump power and consumption.
12428 : // Calculate the condensing temperature as a function of environment and load.
12429 : // Resolve the impact of subcooler heat transfer between and among systems
12430 : // Iterate until the calculated refrigerant mass flow through the compressors converges, which
12431 : // typically requires less than 5 iterations. This was found to be more sensitive than converging
12432 : // upon the calculated condensing temperature.
12433 :
12434 : // REFERENCES:
12435 : // "Impact of ASHRAE Standard 62-1989 on Florida Supermarkets",
12436 : // Florida Solar Energy Center, FSEC-CR-910-96, Final Report, Oct. 1996
12437 :
12438 : // Kyle A. Manske, Performance Optimization of Industrial Refrigeration Systems,
12439 : // A thesis submitted in partial fulfillment of the requirements for the degree of
12440 : // Master of Science, University of Wisconsin-Madison, 1999
12441 :
12442 9166860 : Real64 constexpr ErrorTol(0.001); // Iterative solution tolerance
12443 :
12444 9166860 : bool NotBalanced = true;
12445 9166860 : int NumIter = 0;
12446 9166860 : Real64 ErrorMassFlowComps(0.0); // Error in calculated low stage compressor mass flow (single- or two-stage systems)
12447 9166860 : Real64 ErrorMassFlowHiStageComps(0.0); // Error in calculated high-stage compressor mass flow (two-stage systems only)
12448 :
12449 : // Balance This Refrigeration System using calculated refrigerant flow
12450 9166860 : Real64 MassFlowHiStageCompsStart(0.0); // Mass flow through high-stage compressors (two-stage systems only)
12451 :
12452 37454940 : while (NotBalanced) {
12453 : // Set values for iteration convergence tolerance check
12454 28288080 : ++NumIter;
12455 : // Mass flow through (low-stage) compressors (single- or two-stage systems)
12456 28288080 : Real64 MassFlowCompsStart = this->RefMassFlowComps;
12457 :
12458 28288080 : if (this->NumStages == 2) { // Two-stage systems
12459 14160 : MassFlowHiStageCompsStart = this->RefMassFlowHiStageComps;
12460 : }
12461 :
12462 28288080 : if (this->NumSubcoolers > 0) {
12463 24888 : this->CalculateSubcoolers(state);
12464 : }
12465 28288080 : this->CalculateCompressors(state);
12466 28288080 : this->CalculateCondensers(state, SysNum);
12467 28288080 : this->RefMassFlowtoLoads = this->TotalSystemLoad / (this->HCaseOut - this->HCaseIn);
12468 28288080 : if (NumIter < 2) {
12469 9166860 : continue;
12470 : }
12471 : // Previously did error check on calculated Tcondense, but not sensitive enough
12472 19121220 : if ((this->RefMassFlowtoLoads == 0.0) || (MassFlowCompsStart == 0.0)) { //.OR. (MassFlowCasesStart == 0.0)
12473 0 : ShowWarningError(state, format("Refrigeration:System: {} showing zero refrigeration flow.", this->Name));
12474 : } else {
12475 19121220 : ErrorMassFlowComps = std::abs(MassFlowCompsStart - this->RefMassFlowComps) / MassFlowCompsStart;
12476 19121220 : if (this->NumStages == 2) { // Two-stage systems
12477 10116 : ErrorMassFlowHiStageComps = std::abs(MassFlowHiStageCompsStart - this->RefMassFlowHiStageComps) / MassFlowCompsStart;
12478 : }
12479 : } // denominator zero check
12480 19121220 : if (NumIter > 20) {
12481 0 : break;
12482 : }
12483 19121220 : if (ErrorMassFlowComps < ErrorTol) {
12484 9169498 : if (this->NumStages == 1 || (this->NumStages == 2 && ErrorMassFlowHiStageComps < ErrorTol)) {
12485 9166860 : NotBalanced = false;
12486 : }
12487 : }
12488 : } // error check
12489 9166860 : }
12490 :
12491 2022 : void TransRefrigSystemData::CalcDetailedTransSystem(EnergyPlusData &state, int const SysNum)
12492 : {
12493 :
12494 : // SUBROUTINE INFORMATION:
12495 : // AUTHOR Brian A. Fricke, ORNL
12496 : // DATE WRITTEN Fall 2011
12497 : // MODIFIED na
12498 : // RE-ENGINEERED na
12499 :
12500 : // PURPOSE OF THIS SUBROUTINE:
12501 : // Find the power and energy needed to meet the refrigeration loads for a detailed transcritical
12502 : // CO2 refrigeration system comprised of multiple cases and walk-ins, one gas cooler, and
12503 : // multiple compressors.
12504 :
12505 : // METHODOLOGY EMPLOYED:
12506 : // Sum the refrigeration loads on the system and determine the required evaporating temperature.
12507 : // Dispatch the compressors to determine the needed power, energy consumption, and refrigerant
12508 : // mass flow. Calculate the gas cooler fan power and consumption. Calculate the gas cooler
12509 : // outlet temperature and pressure as a function of ambient temperature. Iterate until the
12510 : // calculated refrigerant mass flow through the receiver bypass converges, which typically
12511 : // requires less than 5 iterations.
12512 :
12513 2022 : Real64 constexpr ErrorTol(0.001); // Iterative solution tolerance
12514 :
12515 2022 : int NumIter(0); // Iteration counter
12516 2022 : bool NotBalanced(true); // Flag to indicate convergence, based on system balance
12517 2022 : Real64 MassFlowStart(0.5); // Initial refrigerant mass flow through receiver bypass
12518 : Real64 ErrorMassFlow; // Error in calculated refrigerant mass flow through receiver bypass
12519 :
12520 12550 : while (NotBalanced) {
12521 10701 : ++NumIter;
12522 :
12523 10701 : if (this->NumGasCoolers >= 1) {
12524 10701 : this->CalcGasCooler(state, SysNum);
12525 : }
12526 10701 : this->CalculateTransCompressors(state);
12527 10701 : if (NumIter < 2) {
12528 2022 : continue;
12529 : }
12530 8679 : if ((this->RefMassFlowReceiverBypass == 0.0) || (MassFlowStart == 0.0)) {
12531 0 : ShowSevereError(state,
12532 0 : format("Refrigeration:TranscriticalSystem: {} showing zero refrigerant flow through receiver bypass.", this->Name));
12533 0 : ShowContinueError(state, format("Receiver Bypass Flow = {:.6R}", this->RefMassFlowReceiverBypass));
12534 0 : ShowContinueError(state, "Check input file to ensure that refrigeration loads on this system are not zero.");
12535 : } else {
12536 8679 : ErrorMassFlow = std::abs(MassFlowStart - this->RefMassFlowReceiverBypass) / MassFlowStart;
12537 8679 : MassFlowStart = this->RefMassFlowReceiverBypass;
12538 : } // denominator zero check
12539 8679 : if (NumIter > 20) {
12540 173 : break;
12541 : }
12542 8506 : if (ErrorMassFlow < ErrorTol) {
12543 1849 : NotBalanced = false;
12544 : }
12545 : } // error check
12546 2022 : }
12547 :
12548 28288080 : void RefrigSystemData::CalculateCondensers(EnergyPlusData &state, int const SysNum)
12549 : {
12550 :
12551 : // SUBROUTINE INFORMATION:
12552 : // AUTHOR Therese Stovall and C. R. Hudson, ORNL, Assisted by Hugh Henderson
12553 : // DATE WRITTEN Spring 2008
12554 : // Using condenser solution algorithms written by Richard Raustad, FSEC
12555 : // Oct/Nov 2004, and MODIFIED by Shirey, FSEC Dec 2004, and Hudson, ORNL in 2007
12556 : // RE-ENGINEERED na
12557 :
12558 : // PURPOSE OF THIS SUBROUTINE:
12559 : // Find the condenser heat rejection for a particular detailed
12560 : // refrigeration system and condensing temperature (part of iterative soln for cond temp).
12561 :
12562 : // METHODOLOGY EMPLOYED:
12563 : // Calculate the condenser fan/pump power and consumption
12564 : // using manufacturer's rating data and fan power correlations
12565 : // from ASHRAE and evaporative effectiveness based on enthalpy
12566 : // similar to work done by Manske.
12567 :
12568 : // From Heejin Cho, Re variable frequency drive fans,
12569 : // "From HVAC forums, I learned that it is common practice to set a
12570 : // minimum frequency at 15 or 20 Hz to protect motors from overheating. The
12571 : // full speed is at 60 Hz. The ratio of minimum and maximum frequencies
12572 : // will correspond to the ratio of minimum and maximum flow rates."
12573 :
12574 : // REFERENCES:
12575 : // "Impact of ASHRAE Standard 62-1989 on Florida Supermarkets",
12576 : // Florida Solar Energy Center, FSEC-CR-910-96, Final Report, Oct. 1996
12577 :
12578 : // Kyle A. Manske, Performance Optimization of Industrial Refrigeration Systems,
12579 : // A thesis submitted in partial fulfillment of the requirements for the degree of
12580 : // Master of Science, University of Wisconsin-Madison, 1999
12581 :
12582 : // Lawrence Berkeley Laboratory and Resource Dynamics, Improving Fan System Performance,
12583 : // A Sourcebook for Industry, DOE/GO-102003-1294, April 2003
12584 :
12585 28288080 : Real64 constexpr BleedRateConstant = 5.0E-10; // water purge rate for evaporative
12586 : // condensers (m3/W-s) equal to 3 GPM per 100 tons (BAC Engineering Reference)
12587 :
12588 28288080 : auto &System = state.dataRefrigCase->System;
12589 28288080 : auto &Condenser = state.dataRefrigCase->Condenser;
12590 :
12591 : int CondID; // Condenser Number
12592 : int CondCreditWarnIndex1; // Used to sum up warning count
12593 : int CondCreditWarnIndex2; // Used to sum up warning count
12594 : int CondCreditWarnIndex3; // Used to sum up warning count
12595 : int CondCreditWarnIndex4; // Used to sum up warning count
12596 : int CondCreditWarnIndex5; // Used to sum up warning count
12597 : int CondCreditWarnIndex6; // Used to sum up warning count
12598 : int CondCreditWarnIndex7; // Used to sum up warning count
12599 : int Sysloop; // counter over number of systems attached to this condenser
12600 : int SystemID; // System number rejecting heat to this condenser
12601 : bool EvapAvail; // Control for evap condenser availability
12602 :
12603 : Real64 AirVolRatio; // Ratio of air volume needed to remove load relative to design load
12604 : Real64 AirDensity; // Density of air at condenser inlet [kg/m3]
12605 : Real64 AirDensityDry; // Density of dry air at condenser inlet temperature [kg/m3]
12606 : Real64 ActualFanPower; // Fan power after adjustments for partially loaded condenser [W]
12607 : Real64 BPress; // Barometric pressure at condenser air inlet node [Pa]
12608 : Real64 CapFac; // Capacity Factor
12609 : Real64 Effectiveness; // for evap condenser, =capacity/max cap, where max cap is cap if Tairout equal Tcondense
12610 : Real64 EnthalpyAtTcond; // enthalpy of saturated air at Tcondense
12611 : Real64 EnthalpyAirIn; // Enthalpy of air entering condenser [J/kg]
12612 : Real64 EnthalpyAirOut; // Enthalpy of air leaving condenser [J/kg]
12613 : Real64 FanMinAirFlowRatio; // Minimum fan air flow ratio
12614 : Real64 FanPowerRatio; // Calculated fan power ratio
12615 28288080 : Real64 HRCF(0.0); // Heat Rejection Capacity Factor (convention for evap condensers)
12616 : Real64 HRCFFullFlow; // Heat Rejection Capacity Factor at full air flow
12617 : Real64 HumRatIn; // Humidity ratio of inlet air to condenser [kg/kg]
12618 : Real64 HumRatOut; // Humidity ratio of outlet air from condenser (assumed saturated) [kg/kg]
12619 28288080 : Real64 OutWbTemp(0.0); // Outdoor wet bulb temp at condenser air inlet node [C]
12620 : Real64 OutDbTemp; // Outdoor dry bulb temp at condenser air inlet node [C]
12621 : Real64 PurgeRate; // Rate of water blow-down/bleed/purge in evap condenser (m3/s)
12622 : Real64 RatedFanPower; // local variable equal to input condenser value
12623 : Real64 RatedAirFlowRate; // local variable equal to input condenser value
12624 : Real64 SinkTemp; // Heat sink temperature used to derate fan power at reduced loads [C]
12625 : Real64 TCondCalc; // Calculated Condensing temperature
12626 : Real64 TotalCondDefrostCreditLocal; // total cond credit from hot gas/brine defr for cases etc. served
12627 : // directly by all systems served by this condenser [W]
12628 : Real64 TotalCondDefCredfromSysID; // cond credit for single system [W]
12629 28288080 : Real64 TotalLoadFromThisSystem(0.0); // total heat rejection load from the detailed system id'd in subroutine call [W]
12630 : Real64 TotalLoadFromSystems; // total heat rejection load from all systems served by this condenser [W]
12631 :
12632 28288080 : Real64 localTimeStep = (state.dataRefrigCase->UseSysTimeStep) ? state.dataHVACGlobal->TimeStepSys : state.dataGlobal->TimeStepZone;
12633 28288080 : Real64 localTimeStepSec = localTimeStep * Constant::rSecsInHour;
12634 :
12635 : // Initialize this condenser for this time step
12636 28288080 : state.dataRefrigCase->TotalCondenserPumpPower = 0.0;
12637 28288080 : state.dataRefrigCase->TotalBasinHeatPower = 0.0;
12638 28288080 : state.dataRefrigCase->TotalCondenserHeat = 0.0;
12639 28288080 : state.dataRefrigCase->TotalEvapWaterUseRate = 0.0;
12640 28288080 : ActualFanPower = 0.0;
12641 28288080 : TotalCondDefrostCreditLocal = 0.0;
12642 28288080 : TotalLoadFromSystems = 0.0;
12643 28288080 : EvapAvail = true;
12644 28288080 : CondID = this->CondenserNum(1);
12645 28288080 : auto &condenser = Condenser(CondID);
12646 28288080 : RatedFanPower = condenser.RatedFanPower;
12647 28288080 : RatedAirFlowRate = condenser.RatedAirFlowRate;
12648 28288080 : FanMinAirFlowRatio = condenser.FanMinAirFlowRatio;
12649 28288080 : CondCreditWarnIndex1 = condenser.CondCreditWarnIndex1;
12650 28288080 : CondCreditWarnIndex2 = condenser.CondCreditWarnIndex2;
12651 28288080 : CondCreditWarnIndex3 = condenser.CondCreditWarnIndex3;
12652 28288080 : CondCreditWarnIndex4 = condenser.CondCreditWarnIndex4;
12653 28288080 : CondCreditWarnIndex5 = condenser.CondCreditWarnIndex5;
12654 28288080 : CondCreditWarnIndex6 = condenser.CondCreditWarnIndex6;
12655 28288080 : CondCreditWarnIndex7 = condenser.CondCreditWarnIndex7;
12656 :
12657 : // Sum total condenser load and defrost credits for all systems connected to this condenser
12658 : // The system values will match the last time that system was solved, so some of the values may be
12659 : // from the previous overall solution iteration. However, solution goes through 3 iterations if
12660 : // there are any shared condensers, so that's ok.
12661 56665425 : for (Sysloop = 1; Sysloop <= condenser.NumSysAttach; ++Sysloop) {
12662 28377345 : SystemID = condenser.SysNum(Sysloop);
12663 28377345 : TotalCondDefCredfromSysID = System(SystemID).TotalCondDefrostCredit + System(SystemID).SumCascadeCondCredit;
12664 28377345 : TotalCondDefrostCreditLocal += TotalCondDefCredfromSysID;
12665 : // total heat rejection load from a single detailed system [W]
12666 : Real64 TotalLoadFromSysID =
12667 28377345 : System(SystemID).TotalSystemLoad + System(SystemID).TotCompPower + System(SystemID).TotHiStageCompPower + System(SystemID).PipeHeatLoad;
12668 28377345 : TotalLoadFromSystems += TotalLoadFromSysID;
12669 28377345 : if (SystemID == SysNum) {
12670 28288080 : TotalLoadFromThisSystem = TotalLoadFromSysID;
12671 : }
12672 : } // Sysloop over every system connected to this condenser
12673 :
12674 : // for cascade condensers, condenser defrost credit gets passed on to the primary system condenser
12675 28288080 : if (condenser.CondenserType == DataHeatBalance::RefrigCondenserType::Cascade) {
12676 12133 : TotalCondDefrostCreditLocal = 0.0;
12677 : }
12678 :
12679 : // Calculate Total Heat rejection needed. Assume hermetic compressors - conservative assumption
12680 : // Note that heat rejection load carried by desuperheater hvac coils or water heaters is the
12681 : // lagged variable from the previous time step because these are calculated after the refrigeration
12682 : // system is solved.
12683 28288080 : condenser.ExternalHeatRecoveredLoad = condenser.LaggedUsedWaterHeater + condenser.LaggedUsedHVACCoil;
12684 28288080 : condenser.InternalHeatRecoveredLoad = TotalCondDefrostCreditLocal;
12685 28288080 : condenser.TotalHeatRecoveredLoad = condenser.ExternalHeatRecoveredLoad + TotalCondDefrostCreditLocal;
12686 :
12687 28288080 : state.dataRefrigCase->TotalCondenserHeat = TotalLoadFromSystems - TotalCondDefrostCreditLocal - condenser.ExternalHeatRecoveredLoad;
12688 28288080 : if (state.dataRefrigCase->TotalCondenserHeat < 0.0) {
12689 :
12690 6 : state.dataRefrigCase->TotalCondenserHeat = 0.0;
12691 6 : if (!state.dataGlobal->WarmupFlag) {
12692 48 : ShowRecurringWarningErrorAtEnd(state,
12693 12 : "Refrigeration:System: " + this->Name +
12694 : ":heat reclaimed(defrost,other purposes) >current condenser load. ",
12695 : CondCreditWarnIndex1);
12696 48 : ShowRecurringContinueErrorAtEnd(
12697 : state, "For heat recovered for defrost: ASHRAE rule of thumb: <= 25% of the load on a rack ", CondCreditWarnIndex2);
12698 48 : ShowRecurringContinueErrorAtEnd(
12699 : state, "should be in defrost at the same time. Consider diversifying defrost schedules.", CondCreditWarnIndex3);
12700 48 : ShowRecurringContinueErrorAtEnd(
12701 : state,
12702 : "For heat recovered for other purposes: this warning may be an artifact of refrigeration calculation at the load",
12703 : CondCreditWarnIndex4);
12704 48 : ShowRecurringContinueErrorAtEnd(
12705 : state,
12706 : "time step and heat recovery at the system time step. In that case, and ONLY if it occurs a large number of times",
12707 : CondCreditWarnIndex5);
12708 48 : ShowRecurringContinueErrorAtEnd(
12709 : state, "(relative to the number of time steps in the simulation), there may be a mis-match between the", CondCreditWarnIndex6);
12710 48 : ShowRecurringContinueErrorAtEnd(
12711 : state, "operating schedules of the refrigeration system and the heat recovery load.", CondCreditWarnIndex7);
12712 : } // not warmup
12713 : } // total condenser heat < 0
12714 :
12715 : // Water side of water-cooled condensers simulated in SimRefrigCondenser,
12716 : // Here, we just need load and condensing temperatures.
12717 : // Condensing temperature a fixed delta (the rated approach temperature) from inlet water temp so long as above minimum.
12718 : // Note, if condensing temperature falls below minimum, get warning and reset but no change in water-side calculations.
12719 28288080 : if (condenser.CondenserType == DataHeatBalance::RefrigCondenserType::Water) {
12720 : // Obtain water-cooled condenser inlet/outlet temps
12721 6066 : condenser.InletTemp = state.dataLoopNodes->Node(condenser.InletNode).Temp;
12722 6066 : TCondCalc = state.dataLoopNodes->Node(condenser.InletNode).Temp + condenser.RatedApproachT;
12723 6066 : if ((condenser.InletTemp < condenser.InletTempMin) || (TCondCalc < this->TCondenseMin)) {
12724 0 : this->TCondense = this->TCondenseMin;
12725 : // condenser.LowTempWarn += 1;
12726 0 : if (condenser.LowTempWarnIndex == 0) {
12727 0 : ShowWarningMessage(state, format("Refrigeration:Condenser:WaterCooled {}", condenser.Name));
12728 0 : ShowContinueError(state,
12729 : "Water-cooled condenser inlet temp lower than minimum allowed temp. Check returning water temperature and/or "
12730 : "minimum temperature setpoints relative to minimum allowed condensing temperature.");
12731 : }
12732 0 : ShowRecurringWarningErrorAtEnd(state,
12733 0 : "Refrigeration:Condenser:WaterCooled " + condenser.Name +
12734 : " - Condenser inlet temp lower than minimum allowed ... continues",
12735 0 : condenser.LowTempWarnIndex);
12736 : // END IF
12737 : } else {
12738 6066 : this->TCondense = TCondCalc;
12739 : }
12740 :
12741 28282014 : } else if ((condenser.CondenserType == DataHeatBalance::RefrigCondenserType::Air) ||
12742 75727 : (condenser.CondenserType == DataHeatBalance::RefrigCondenserType::Evap)) {
12743 : // Condensing Temp, fan and other aux loads for air-cooled or evap-cooled
12744 :
12745 : // The rated capacity of air-cooled condenser was adjusted for elevation in get input step
12746 28269881 : CapFac = state.dataRefrigCase->TotalCondenserHeat / condenser.RatedCapacity;
12747 : // See whether condenser is at ground level or if other air conditions(ie node) have been specified.
12748 : // Note that air-cooled condensers can draw air from, and reject heat to, a conditioned zone
12749 : // But evaporative condensers cannot.
12750 : // Provides effective condensing temperature for air-cooled condenser (or evap if evap is scheduled off)
12751 28269881 : if (condenser.InletAirNodeNum != 0) {
12752 28269881 : OutDbTemp = state.dataLoopNodes->Node(condenser.InletAirNodeNum).Temp;
12753 28269881 : BPress = state.dataLoopNodes->Node(condenser.InletAirNodeNum).Press;
12754 28269881 : HumRatIn = state.dataLoopNodes->Node(condenser.InletAirNodeNum).HumRat;
12755 : } else {
12756 0 : OutDbTemp = state.dataEnvrn->OutDryBulbTemp;
12757 0 : BPress = state.dataEnvrn->OutBaroPress;
12758 0 : HumRatIn = state.dataEnvrn->OutHumRat;
12759 : }
12760 28269881 : AirDensity = Psychrometrics::PsyRhoAirFnPbTdbW(state, BPress, OutDbTemp, HumRatIn);
12761 28269881 : AirDensityDry = Psychrometrics::PsyRhoAirFnPbTdbW(state, BPress, OutDbTemp, 0.0);
12762 : // Evaporative condensers will have their water flow shut off in cold months to avoid
12763 : // 'spectacular' icing problems. Ideally, the user will use the evaporative schedule input
12764 : // to set such a schedule. However, sometimes, users will use a single input deck to model
12765 : // one building in multiple climates, and may not think to put in such a schedule in the colder
12766 : // climates. To accommodate such applications, the variable EvapCutOutTdb is used as an extra
12767 : // check.
12768 :
12769 28269881 : if (OutDbTemp < EvapCutOutTdb) {
12770 18346736 : EvapAvail = false;
12771 : }
12772 :
12773 : // Check schedule to determine evap condenser availability
12774 : // IF schedule exists, evap condenser can be scheduled OFF
12775 28333475 : if ((condenser.CondenserType == DataHeatBalance::RefrigCondenserType::Evap) && (condenser.evapAvailSched != nullptr) &&
12776 63594 : (condenser.evapAvailSched->getCurrentVal() == 0)) {
12777 32675 : EvapAvail = false;
12778 : }
12779 :
12780 : // Calculate condensing temperatures for air-cooled and evap-cooled
12781 28269881 : if (condenser.CondenserType == DataHeatBalance::RefrigCondenserType::Evap) {
12782 : // Manufacturer's HRCF regressed to produce a function of the form:
12783 : // (Tcondense-Twb)=A1 + A2*hrcf + A3/hrcf + A4*Twb
12784 : // HRCF defined as rated capacity divided by load
12785 : // Apply ARI490 elevation correction factor here for evap condenser, then apply hrcf limits
12786 63594 : if (CapFac > 0.0) {
12787 63594 : HRCF = condenser.EvapElevFact / CapFac;
12788 : // Condenser(CondNum)%EvapElevFact=1.0d0-3.074D-5*Elevation
12789 : } else {
12790 0 : HRCF = MyLargeNumber;
12791 : }
12792 63594 : HRCF = min(HRCF, condenser.MaxCapFacEvap);
12793 63594 : HRCF = max(HRCF, condenser.MinCapFacEvap);
12794 63594 : if (EvapAvail) {
12795 30919 : OutWbTemp = Psychrometrics::PsyTwbFnTdbWPb(state, OutDbTemp, HumRatIn, BPress);
12796 30919 : SinkTemp = OutWbTemp;
12797 : } else { // evaporative condenser with water spray scheduled off so use Tdb
12798 32675 : HRCF /= 3.0; // reference Menske, cap of evap cond operating dry about 1/3 of rated cap
12799 32675 : HRCF = max(HRCF, condenser.MinCapFacEvap);
12800 32675 : SinkTemp = OutDbTemp;
12801 : } // evap avail, still in evap condenser
12802 63594 : TCondCalc = condenser.EvapCoeff1 + condenser.EvapCoeff2 * HRCF + condenser.EvapCoeff3 / HRCF + (1.0 + condenser.EvapCoeff4) * SinkTemp;
12803 : } else { // air-cooled condenser
12804 : // MinCondLoad and TempSlope came from condenser capacity curve, using curve backwards
12805 28206287 : TCondCalc = OutDbTemp + (state.dataRefrigCase->TotalCondenserHeat - condenser.MinCondLoad) * condenser.TempSlope;
12806 28206287 : SinkTemp = OutDbTemp;
12807 : } // if evap-cooled condenser
12808 :
12809 : // Fan energy calculations apply to both air- and evap-cooled condensers
12810 : // Compare calculated condensing temps to minimum allowed to determine fan power/operating mode
12811 28269881 : if (TCondCalc >= this->TCondenseMin) {
12812 7947730 : this->TCondense = TCondCalc;
12813 7947730 : ActualFanPower = RatedFanPower;
12814 7947730 : AirVolRatio = 1.0;
12815 :
12816 : } else { // need to reduce fan speed to reduce air flow and keep Tcond at or above Tcond min
12817 20322151 : this->TCondense = this->TCondenseMin;
12818 20322151 : TCondCalc = this->TCondenseMin;
12819 : // recalculate CapFac at current delta T
12820 20322151 : if (condenser.CondenserType == DataHeatBalance::RefrigCondenserType::Air) {
12821 : // current maximum condenser capacity at delta T present for minimum condensing temperature [W]
12822 20307174 : Real64 CurMaxCapacity = Curve::CurveValue(state, condenser.CapCurvePtr, (this->TCondenseMin - OutDbTemp));
12823 20307174 : CapFac = state.dataRefrigCase->TotalCondenserHeat / CurMaxCapacity;
12824 20307174 : AirVolRatio = max(FanMinAirFlowRatio, std::pow(CapFac, CondAirVolExponentDry)); // Fans limited by minimum air flow ratio
12825 20307174 : AirVolRatio = min(AirVolRatio, 1.0);
12826 : } else { // condenser.CondenserType == DataHeatBalance::RefrigCondenserType::Evap
12827 14977 : HRCFFullFlow = HRCF;
12828 : // if evap condenser need to back calculate the operating capacity using HRCF relationship, given known Tcond
12829 14977 : Real64 QuadBterm = condenser.EvapCoeff1 - (this->TCondense - SinkTemp) + condenser.EvapCoeff4 * SinkTemp;
12830 14977 : Real64 Sqrtterm = pow_2(QuadBterm) - 4.0 * condenser.EvapCoeff2 * condenser.EvapCoeff3;
12831 14977 : if (Sqrtterm < 0.0) { // only happens for very high wet bulb temps
12832 0 : HRCF = condenser.EvapElevFact * condenser.MaxCapFacEvap;
12833 0 : if (!EvapAvail) {
12834 0 : HRCF /= 3.0;
12835 : }
12836 0 : HRCF = max(HRCF, condenser.MinCapFacEvap);
12837 : } else {
12838 14977 : HRCF = condenser.EvapElevFact * (-QuadBterm - std::sqrt(Sqrtterm)) / (2.0 * condenser.EvapCoeff2);
12839 14977 : if (!EvapAvail) {
12840 9883 : HRCF /= 3.0;
12841 : }
12842 14977 : HRCF = min(HRCF, condenser.MaxCapFacEvap);
12843 14977 : HRCF = max(HRCF, condenser.MinCapFacEvap);
12844 : } // sqrtterm
12845 14977 : CapFac = HRCF / HRCFFullFlow; // note, HRCFFullFlow previously limited between min and max,so can't be zero
12846 14977 : if (EvapAvail) {
12847 5094 : AirVolRatio = max(FanMinAirFlowRatio, std::pow(CapFac, CondAirVolExponentEvap)); // Fans limited by minimum air flow ratio
12848 : } else { // evap not available
12849 9883 : AirVolRatio = max(FanMinAirFlowRatio, std::pow(CapFac, CondAirVolExponentDry)); // Fans limited by minimum air flow ratio
12850 : } // evap available
12851 14977 : AirVolRatio = min(AirVolRatio, 1.0);
12852 : } // condenser type = DataHeatBalance::RefrigCondenserType::Air with else for evap
12853 :
12854 20322151 : switch (condenser.FanSpeedControlType) {
12855 71213 : case FanSpeedCtrlType::VariableSpeed: { // fan power law, adjusted for reality, applies
12856 71213 : FanPowerRatio = std::pow(AirVolRatio, 2.5);
12857 71213 : ActualFanPower = FanPowerRatio * RatedFanPower;
12858 71213 : } break;
12859 39240 : case FanSpeedCtrlType::ConstantSpeed: {
12860 39240 : ActualFanPower = AirVolRatio * std::exp(1.0 - AirVolRatio) * RatedFanPower;
12861 39240 : } break;
12862 0 : case FanSpeedCtrlType::ConstantSpeedLinear: {
12863 0 : ActualFanPower = AirVolRatio * RatedFanPower;
12864 0 : } break;
12865 20211698 : case FanSpeedCtrlType::TwoSpeed: {
12866 : // low speed setting of 1/2 fan speed can give up to 60% of capacity.
12867 : // 1/2 speed corresponds to ~1/8 power consumption (FanHalfSpeedRatio = 1/(2**2.5) = 0.1768)
12868 : // dampers are used to control flow within those two ranges as in FanConstantSpeed
12869 20211698 : Real64 const air_vol_fan_power_fac(std::exp(1.0 - AirVolRatio) * RatedFanPower);
12870 20211698 : ActualFanPower = AirVolRatio * air_vol_fan_power_fac;
12871 20211698 : if (CapFac < CapFac60Percent) {
12872 20204163 : ActualFanPower = ((AirVolRatio + 0.4) * FanHalfSpeedRatio) * air_vol_fan_power_fac;
12873 : }
12874 20211698 : } break;
12875 0 : default:
12876 0 : break;
12877 : } // fan speed control type
12878 : } // Tcondense >= Tcondense minimum
12879 :
12880 28269881 : if ((condenser.CondenserType == DataHeatBalance::RefrigCondenserType::Evap) && (EvapAvail)) {
12881 : // calculate evap water use, need to include bleed down/purge water as well as water
12882 : // actually evaporated. Use BAC Engineering Reference value of 3 gpm/100 tons because it's more
12883 : // conservative than the ASHRAE value.
12884 : // Also, based on experience, running the evap water when outdoor T near freezing
12885 : // leads to 'spectacular' ice, so schedule evap off when Tdb <=4 C.
12886 : // Calculate bleed/purge rate of water loss as a function of capacity, 3 gpm/100 tons refrigeration
12887 30919 : PurgeRate = state.dataRefrigCase->TotalCondenserHeat * BleedRateConstant;
12888 30919 : EnthalpyAirIn = Psychrometrics::PsyHFnTdbW(OutDbTemp, HumRatIn);
12889 : // calculate effectiveness at rated conditions, so use Tcondcalc)
12890 30919 : EnthalpyAtTcond = Psychrometrics::PsyHFnTdbRhPb(state, TCondCalc, 1.0, BPress);
12891 30919 : Effectiveness = state.dataRefrigCase->TotalCondenserHeat / (RatedAirFlowRate * AirDensity * (EnthalpyAtTcond - EnthalpyAirIn));
12892 : // need to limit max effectiveness for errors due to working beyond limits of HRCF in manuf data
12893 30919 : Effectiveness = min(Effectiveness, 0.9);
12894 30919 : EnthalpyAirOut = EnthalpyAirIn + Effectiveness * (EnthalpyAtTcond - EnthalpyAirIn);
12895 : // Air leaving the evaporative condenser is saturated
12896 30919 : Real64 TAirOut = Psychrometrics::PsyTsatFnHPb(state, EnthalpyAirOut, BPress);
12897 30919 : HumRatOut = Psychrometrics::PsyWFnTdpPb(state, TAirOut, BPress);
12898 61838 : state.dataRefrigCase->TotalEvapWaterUseRate =
12899 30919 : PurgeRate + RatedAirFlowRate * AirVolRatio * AirDensityDry * (HumRatOut - HumRatIn) / Psychrometrics::RhoH2O(OutWbTemp);
12900 : // assumes evap water pump runs whenever evap cooling is available to minimize scaling
12901 30919 : state.dataRefrigCase->TotalCondenserPumpPower = condenser.EvapPumpPower;
12902 : // calculate basin water heater load
12903 30919 : if (state.dataRefrigCase->TotalCondenserHeat == 0.0 && OutDbTemp < condenser.BasinHeaterSetPointTemp) {
12904 0 : state.dataRefrigCase->TotalBasinHeatPower =
12905 0 : max(0.0, condenser.BasinHeaterPowerFTempDiff * (condenser.BasinHeaterSetPointTemp - OutDbTemp));
12906 : // provide warning if no heater power exists
12907 0 : if (state.dataRefrigCase->TotalBasinHeatPower == 0.0) {
12908 : // condenser.EvapFreezeWarn = condenser.EvapFreezeWarn + 1;
12909 0 : if (condenser.EvapFreezeWarnIndex == 0) {
12910 0 : ShowWarningMessage(
12911 : state,
12912 0 : format("Refrigeration Condenser {} - Evap cooling of condenser underway with no basin heater power", condenser.Name));
12913 0 : ShowContinueError(state, "and condenser inlet air dry-bulb temp at or below the basin heater setpoint temperature.");
12914 0 : ShowContinueErrorTimeStamp(state, "Continuing simulation.");
12915 : }
12916 0 : ShowRecurringWarningErrorAtEnd(state,
12917 0 : "Refrigeration Condenser " + condenser.Name +
12918 : " - Evap cooling of condenser underway with no basin heater power ... continues",
12919 0 : condenser.EvapFreezeWarnIndex);
12920 : // END IF !freeze warnings <= 5
12921 : } // basin power == 0
12922 : } // no load and cold outside
12923 : } // EvapAvail
12924 :
12925 28282014 : } else if (condenser.CondenserType ==
12926 : DataHeatBalance::RefrigCondenserType::Cascade) { // continuing Condenser type = water, (evap or air), or cascade
12927 : // Cascade condenser does not iterate. Condensing temperature specified as a load on higher temp system
12928 : // or floats to meet other loads on that system
12929 : // therese ** future - here and for new phase change heat exchanger - need to handle unmet loads!
12930 :
12931 12133 : this->TCondense = condenser.RatedTCondense;
12932 :
12933 12133 : if ((this->NumNonCascadeLoads > 0) && (condenser.CascadeTempControl == CascadeCndsrTempCtrlType::TempFloat)) {
12934 0 : this->TCondense = System(condenser.CascadeSinkSystemID).TEvapNeeded + condenser.RatedApproachT;
12935 0 : if (this->TCondense < this->TCondenseMin) {
12936 0 : this->TCondense = this->TCondenseMin;
12937 0 : ShowRecurringWarningErrorAtEnd(state,
12938 0 : "Refrigeration Condenser " + condenser.Name +
12939 : " - Cascade condenser floating condensing temperature less than specified minimum condensing "
12940 : "temperature. Minimum specified temperature used for system below cascade condenser. No "
12941 : "correction made for system absorbing heat rejected by the cascade condenser.",
12942 0 : condenser.EvapFreezeWarnIndex);
12943 : } // floating condensing temperature less than specified min for system
12944 : } // floating temperature
12945 : } // Condenser type = water, (evap or air), or cascade
12946 :
12947 28288080 : condenser.ActualFanPower = ActualFanPower;
12948 28288080 : condenser.FanElecEnergy = ActualFanPower * localTimeStepSec;
12949 28288080 : condenser.EvapWaterConsumpRate = state.dataRefrigCase->TotalEvapWaterUseRate;
12950 28288080 : condenser.EvapWaterConsumption = state.dataRefrigCase->TotalEvapWaterUseRate * localTimeStepSec;
12951 28288080 : condenser.ActualEvapPumpPower = state.dataRefrigCase->TotalCondenserPumpPower;
12952 28288080 : condenser.EvapPumpConsumption = state.dataRefrigCase->TotalCondenserPumpPower * localTimeStepSec;
12953 28288080 : condenser.BasinHeaterPower = state.dataRefrigCase->TotalBasinHeatPower;
12954 28288080 : condenser.BasinHeaterConsumption = state.dataRefrigCase->TotalBasinHeatPower * localTimeStepSec;
12955 28288080 : condenser.CondLoad = state.dataRefrigCase->TotalCondenserHeat;
12956 28288080 : condenser.CondEnergy = state.dataRefrigCase->TotalCondenserHeat * localTimeStepSec;
12957 28288080 : condenser.CondCreditWarnIndex1 = CondCreditWarnIndex1;
12958 28288080 : condenser.CondCreditWarnIndex2 = CondCreditWarnIndex2;
12959 28288080 : condenser.CondCreditWarnIndex3 = CondCreditWarnIndex3;
12960 28288080 : condenser.CondCreditWarnIndex4 = CondCreditWarnIndex4;
12961 28288080 : condenser.CondCreditWarnIndex5 = CondCreditWarnIndex5;
12962 28288080 : condenser.CondCreditWarnIndex6 = CondCreditWarnIndex6;
12963 28288080 : condenser.CondCreditWarnIndex7 = CondCreditWarnIndex7;
12964 28288080 : condenser.ExternalEnergyRecovered = condenser.ExternalHeatRecoveredLoad * localTimeStepSec;
12965 28288080 : condenser.InternalEnergyRecovered = condenser.InternalHeatRecoveredLoad * localTimeStepSec;
12966 28288080 : condenser.TotalHeatRecoveredEnergy = condenser.TotalHeatRecoveredLoad * localTimeStepSec;
12967 28288080 : this->NetHeatRejectLoad = state.dataRefrigCase->TotalCondenserHeat * TotalLoadFromThisSystem / TotalLoadFromSystems;
12968 28288080 : this->NetHeatRejectEnergy = this->NetHeatRejectLoad * localTimeStepSec;
12969 :
12970 : // set water system demand request (if needed)
12971 28288080 : if (condenser.EvapWaterSupplyMode == WaterSupply::FromTank) {
12972 63594 : state.dataWaterData->WaterStorage(condenser.EvapWaterSupTankID).VdotRequestDemand(condenser.EvapWaterTankDemandARRID) =
12973 63594 : condenser.EvapWaterConsumpRate;
12974 : }
12975 28288080 : }
12976 :
12977 10701 : void TransRefrigSystemData::CalcGasCooler(EnergyPlusData &state, int const SysNum)
12978 : {
12979 :
12980 : // SUBROUTINE INFORMATION:
12981 : // AUTHOR Brian A. Fricke, ORNL
12982 : // DATE WRITTEN Fall 2011
12983 : // MODIFIED na
12984 : // RE-ENGINEERED na
12985 :
12986 : // PURPOSE OF THIS SUBROUTINE:
12987 : // Find the gas cooler outlet temperature, the optimum gas cooler pressure, heat rejection,
12988 : // fan power, and fan energy for a detailed transcritical CO2 refrigeration system.
12989 :
12990 : // METHODOLOGY EMPLOYED:
12991 : // For a specified gas cooler outlet temperature in transcritical operation, there is an optimal gas cooler
12992 : // pressure which produces the highest COP. A curve-fit equation similar to that presented by Ge and Tassou
12993 : // (2011) and Sawalha (2008) is used to determine the optimum gas cooler pressure for a given gas cooler
12994 : // outlet temperature. In subcritical operation, the condensing temperature and pressure are allowed to
12995 : // float with ambient conditions, above the minimum condensing temperature.
12996 :
12997 : // REFERENCES:
12998 : // Ge, Y.T., and S.A. Tassou. 2011. Performance evaluation and optimal design of supermarket refrigeration
12999 : // systems with supermarket model "SuperSim", Part I: Model description and validation. International
13000 : // Journal of Refrigeration 34: 527-539.
13001 : // Ge, Y.T., and S.A. Tassou. 2011. Performance evaluation and optimal design of supermarket refrigeration
13002 : // systems with supermarket model "SuperSim", Part II: Model applications. International Journal of
13003 : // Refrigeration 34: 540-549.
13004 : // Sawalha, S. 2008. Theoretical evaluation of trans-critical CO2 systems in supermarket refrigeration,
13005 : // Part I: Modeling, simulation and optimization of two system solutions. International Journal of
13006 : // Refrigeration 31: 516-524.
13007 : // Sawalha, S. 2008. Theoretical evaluation of trans-critical CO2 systems in supermarket refrigeration,
13008 : // Part II: System modifications and comparisons of different solutions. International Journal of
13009 : // Refrigeration 31: 525-534.
13010 :
13011 : static constexpr std::string_view RoutineName = "RefrigeratedCase:CalcGasCooler";
13012 :
13013 10701 : auto &TransSystem = state.dataRefrigCase->TransSystem;
13014 10701 : auto &GasCooler = state.dataRefrigCase->GasCooler;
13015 :
13016 : int GasCoolerCreditWarnIndex; // Warning counter
13017 : Real64 ActualFanPower; // Fan power after adjustments for partially loaded gas cooler [W]
13018 : Real64 AirVolRatio; // Ratio of air volume needed to remove load relative to design load
13019 : Real64 FanMinAirFlowRatio; // Minimum fan air flow ratio
13020 : Real64 FanPowerRatio; // Calculated fan power ratio
13021 : Real64 OutDbTemp; // Outdoor dry bulb temperature at gas cooler air inlet node [C]
13022 : Real64 RatedFanPower; // Rated fan power for this gas cooler [W]
13023 : Real64 TotalCondDefCredfromSysID; // Gas cooler defrost credit for single system [W]
13024 : Real64 TotalCondDefrostCreditLocal; // Total gas cooler credit from hot gas/brine defrost for cases etc. served
13025 : // directly by all systems served by this gas cooler [W]
13026 : Real64 TotalGasCoolerHeat; // Total gas cooler heat from system [W]
13027 : Real64 TotalLoadFromSysID; // Total heat rejection load from a single detailed system [W]
13028 : Real64 TotalLoadFromSystems; // Total heat rejection load from all systems served by this condenser [W]
13029 10701 : Real64 TotalLoadFromThisSystem(0.0); // Total heat rejection load from the detailed system identified in subroutine call [W]
13030 :
13031 10701 : Real64 localTimeStep = (state.dataRefrigCase->UseSysTimeStep) ? state.dataHVACGlobal->TimeStepSys : state.dataGlobal->TimeStepZone;
13032 10701 : Real64 localTimeStepSec = localTimeStep * Constant::rSecsInHour;
13033 :
13034 : // Initialize this gas cooler for this time step
13035 10701 : ActualFanPower = 0.0;
13036 10701 : TotalCondDefrostCreditLocal = 0.0;
13037 10701 : TotalLoadFromSystems = 0.0;
13038 10701 : int GasCoolerID = this->GasCoolerNum(1);
13039 10701 : auto &cooler = GasCooler(GasCoolerID);
13040 10701 : RatedFanPower = cooler.RatedFanPower;
13041 10701 : FanMinAirFlowRatio = cooler.FanMinAirFlowRatio;
13042 10701 : GasCoolerCreditWarnIndex = cooler.GasCoolerCreditWarnIndex;
13043 :
13044 21402 : for (int Sysloop = 1; Sysloop <= cooler.NumSysAttach; ++Sysloop) {
13045 10701 : int SystemID = cooler.SysNum(Sysloop);
13046 10701 : TotalCondDefCredfromSysID = TransSystem(SystemID).TotalCondDefrostCredit;
13047 10701 : TotalCondDefrostCreditLocal += TotalCondDefCredfromSysID;
13048 10701 : TotalLoadFromSysID = TransSystem(SystemID).TotalSystemLoadLT + TransSystem(SystemID).TotalSystemLoadMT +
13049 10701 : TransSystem(SystemID).TotCompPowerLP + TransSystem(SystemID).TotCompPowerHP + TransSystem(SystemID).PipeHeatLoadLT +
13050 10701 : TransSystem(SystemID).PipeHeatLoadMT;
13051 10701 : TotalLoadFromSystems += TotalLoadFromSysID;
13052 10701 : if (SystemID == SysNum) {
13053 10701 : TotalLoadFromThisSystem = TotalLoadFromSysID;
13054 : }
13055 : } // Sysloop over every system connected to this gas cooler
13056 :
13057 : // Calculate Total Heat rejection needed.
13058 10701 : cooler.InternalHeatRecoveredLoad = TotalCondDefrostCreditLocal;
13059 10701 : cooler.TotalHeatRecoveredLoad = TotalCondDefrostCreditLocal;
13060 10701 : TotalGasCoolerHeat = TotalLoadFromSystems - TotalCondDefrostCreditLocal;
13061 :
13062 10701 : if (TotalGasCoolerHeat < 0.0) {
13063 0 : TotalGasCoolerHeat = 0.0;
13064 0 : if (!state.dataGlobal->WarmupFlag) {
13065 0 : ShowRecurringWarningErrorAtEnd(state,
13066 0 : "Refrigeration:TranscriticalSystem: " + this->Name +
13067 : ":heat reclaimed (defrost,other purposes) is greater than current gas cooler load. ASHRAE rule of "
13068 : "thumb: <= 25% of the load on a system should be in defrost at the same time. Consider "
13069 : "diversifying defrost schedules.",
13070 : GasCoolerCreditWarnIndex);
13071 : }
13072 : } // total gas cooler heat < 0
13073 :
13074 : // The rated capacity of air-cooled gas cooler was adjusted for elevation in get input step
13075 10701 : Real64 CapFac = TotalGasCoolerHeat / cooler.RatedCapacity;
13076 : // See whether gas cooler is at ground level or if other air conditions (ie node) have been specified.
13077 : // Note that air-cooled gas coolers can draw air from, and reject heat to, a conditioned zone.
13078 10701 : if (cooler.InletAirNodeNum != 0) {
13079 0 : OutDbTemp = state.dataLoopNodes->Node(cooler.InletAirNodeNum).Temp;
13080 : } else {
13081 10701 : OutDbTemp = state.dataEnvrn->OutDryBulbTemp;
13082 : }
13083 : // Determine gas cooler outlet temperature and pressure
13084 : // Transcritical: Gas cooler outlet temperature based on ambient temperature and approach temperature.
13085 : // Determine optimum gas cooler pressure to maximize COP.
13086 : // Subcritical: Allow condensing temperature and pressure to float between minimum condensing temperature and
13087 : // transition temperature.
13088 10701 : if (OutDbTemp > cooler.TransitionTemperature) { // Gas cooler in transcritical operation
13089 4375 : cooler.TGasCoolerOut = OutDbTemp + cooler.GasCoolerApproachT;
13090 4375 : cooler.PGasCoolerOut = 1.0e5 * (2.3083 * state.dataEnvrn->OutDryBulbTemp + 11.9);
13091 4375 : if (cooler.PGasCoolerOut < 7.5e6) { // Ensure gas cooler pressure is at least 7.5 MPa for transcritical operation
13092 427 : cooler.PGasCoolerOut = 7.5e6;
13093 : }
13094 4375 : cooler.HGasCoolerOut = this->refrig->getSupHeatEnthalpy(state, cooler.TGasCoolerOut, cooler.PGasCoolerOut, RoutineName);
13095 4375 : cooler.TransOpFlag = true;
13096 : } else { // Gas cooler in subcritical operation
13097 6326 : cooler.TGasCoolerOut = OutDbTemp + cooler.SubcriticalTempDiff;
13098 6326 : if (cooler.TGasCoolerOut > 30.978) { // Gas temperature should be less than critical temperature
13099 1966 : cooler.PGasCoolerOut = 7.2e6; // Fix the pressure to be subcritical
13100 1966 : cooler.TGasCoolerOut = this->refrig->getSatTemperature(state, cooler.PGasCoolerOut, RoutineName);
13101 4360 : } else if (cooler.TGasCoolerOut > cooler.MinCondTemp) { // Allow condensing temperature to float above the minimum
13102 4360 : cooler.PGasCoolerOut = this->refrig->getSatPressure(state, cooler.TGasCoolerOut, RoutineName);
13103 : } else { // Don't allow condensing temperature to drop below minimum
13104 0 : cooler.TGasCoolerOut = cooler.MinCondTemp;
13105 0 : cooler.PGasCoolerOut = this->refrig->getSatPressure(state, cooler.TGasCoolerOut, RoutineName);
13106 : }
13107 6326 : cooler.HGasCoolerOut = this->refrig->getSatEnthalpy(state, cooler.TGasCoolerOut, 0.0, RoutineName);
13108 6326 : cooler.TransOpFlag = false;
13109 : } // (OutDbTemp > TransitionTemperature)
13110 :
13111 10701 : if (cooler.TGasCoolerOut < 30.978) {
13112 7126 : cooler.CpGasCoolerOut = this->refrig->getSatSpecificHeat(state, cooler.TGasCoolerOut, 0.0, RoutineName);
13113 : } else {
13114 3575 : cooler.CpGasCoolerOut = 0.0;
13115 : }
13116 :
13117 : // Gas cooler fan energy calculations
13118 10701 : AirVolRatio = max(FanMinAirFlowRatio, std::pow(CapFac, CondAirVolExponentDry)); // Fans limited by minimum air flow ratio
13119 :
13120 10701 : switch (cooler.FanSpeedControlType) {
13121 0 : case FanSpeedCtrlType::VariableSpeed: { // fan power law, adjusted for reality, applies
13122 0 : FanPowerRatio = std::pow(AirVolRatio, 2.5);
13123 0 : ActualFanPower = FanPowerRatio * RatedFanPower;
13124 0 : } break;
13125 10701 : case FanSpeedCtrlType::ConstantSpeed: {
13126 10701 : ActualFanPower = AirVolRatio * std::exp(1.0 - AirVolRatio) * RatedFanPower;
13127 10701 : } break;
13128 0 : case FanSpeedCtrlType::ConstantSpeedLinear: {
13129 0 : ActualFanPower = AirVolRatio * RatedFanPower;
13130 0 : } break;
13131 0 : case FanSpeedCtrlType::TwoSpeed: {
13132 : // low speed setting of 1/2 fan speed can give up to 60% of capacity.
13133 : // 1/2 speed corresponds to ~1/8 power consumption (FanHalfSpeedRatio = 1/(2**2.5) = 0.1768)
13134 : // dampers are used to control flow within those two ranges as in FanConstantSpeed
13135 0 : ActualFanPower = AirVolRatio * std::exp(1.0 - AirVolRatio) * RatedFanPower;
13136 0 : if (CapFac < CapFac60Percent) {
13137 0 : ActualFanPower = ((AirVolRatio + 0.4) * (FanHalfSpeedRatio)) * std::exp(1.0 - AirVolRatio) * RatedFanPower;
13138 : }
13139 0 : } break;
13140 0 : default:
13141 0 : break;
13142 : } // fan speed control type
13143 :
13144 10701 : cooler.ActualFanPower = ActualFanPower;
13145 10701 : cooler.FanElecEnergy = ActualFanPower * localTimeStepSec;
13146 10701 : cooler.GasCoolerLoad = TotalGasCoolerHeat;
13147 10701 : cooler.GasCoolerEnergy = TotalGasCoolerHeat * localTimeStepSec;
13148 10701 : cooler.GasCoolerCreditWarnIndex = GasCoolerCreditWarnIndex;
13149 10701 : cooler.InternalEnergyRecovered = cooler.InternalHeatRecoveredLoad * localTimeStepSec;
13150 10701 : cooler.TotalHeatRecoveredEnergy = cooler.TotalHeatRecoveredLoad * localTimeStepSec;
13151 10701 : this->NetHeatRejectLoad = TotalGasCoolerHeat * TotalLoadFromThisSystem / TotalLoadFromSystems;
13152 10701 : this->NetHeatRejectEnergy = this->NetHeatRejectLoad * localTimeStepSec;
13153 10701 : }
13154 :
13155 28288080 : void RefrigSystemData::CalculateCompressors(EnergyPlusData &state)
13156 : {
13157 :
13158 : // SUBROUTINE INFORMATION:
13159 : // AUTHOR Therese Stovall, ORNL, Assisted by Hugh Henderson
13160 : // DATE WRITTEN Spring 2008
13161 : // MODIFIED Brian Fricke, ORNL, March 2012, added two-stage compression
13162 : // RE-ENGINEERED na
13163 :
13164 : // PURPOSE OF THIS SUBROUTINE:
13165 : // Find the Compressor power, energy, capacity, and efficiency for a particular detailed
13166 : // refrigeration system. Routine is capable of modeling single-stage and two-stage
13167 : // compression refrigeration systems.
13168 :
13169 : // METHODOLOGY EMPLOYED:
13170 : // USe ARI compressor performance curves, the evaporating temperature and condensing temperature
13171 :
13172 : // REFERENCES:
13173 : // "Impact of ASHRAE Standard 62-1989 on Florida Supermarkets",
13174 : // Florida Solar Energy Center, FSEC-CR-910-96, Final Report, Oct. 1996
13175 :
13176 : // ARI Standard 540, 2004, Standard for Performance Rating of Positive Displacement Refrigerant
13177 : // Compressors and Compressor Units, Air-Conditioning & Refrigeration Institute,Arlington VA
13178 :
13179 : // SUBROUTINE PARAMETER DEFINITIONS:
13180 : // Following constants approp for R22, R134a, R404a, R507, R410a, R407c, future allow input?
13181 : // May want to allow input to reflect larger pipes selected to reduce delta P and increase compressor efficiency.
13182 : // NOTE, these DelT...Pipes reflect the decrease in Pressure in the pipes, NOT thermal transfer through the pipe walls.
13183 28288080 : Real64 constexpr DelTSuctPipes(1.0); // Tsat drop corresponding to P drop in suction pipes, ASHRAE 2006 p 2.4 (C)
13184 28288080 : Real64 constexpr DelTDischPipes(0.5); // Tsat drop corresponding to P drop in discharge pipes, ASHRAE 2006 p 2.5 (C)
13185 :
13186 : static constexpr std::string_view RoutineName("RefrigeratedCase:CalculateCompressors");
13187 : Real64 CaseEnthalpyChangeRated; // Enthalpy change in cases at compressor rated cond, J/kg
13188 : Real64 CapacityCorrection; // Capacity at existing subcool/superheat over cap at rated conditions
13189 : Real64 CpSatVapCondense; // Specific heat of vapor at cond temp J/kg-C
13190 : Real64 DensityRated; // Density of inlet gas at rated superheat, m3/kg
13191 : Real64 DensityActual; // Density of superheated gas at compressor inlet, m3/kg
13192 28288080 : Real64 HCompInRated(0.0); // Enthalpy entering compressor at rated superheat, J/kg //Autodesk:Init
13193 28288080 : Real64 HCaseInRated(0.0); // Enthalpy entering cases at rated subcooling, J/kg //Autodesk:Init
13194 : Real64 HSatVapCondense; // Enthalpy of saturated vapor at T condense, J/kg
13195 : Real64 HsatVaporforTevapneeded; // Enthalpy saturated vapor at temperature needed at evaporator
13196 : Real64 LFLastComp; // Load factor for last compressor dispatched
13197 : Real64 MassCorrection; // Mass flow at existing subcool/superheat over cap at rated conditions
13198 : Real64 NeededCapacity; // Sum of case loads and mech subcooler loads on suction group
13199 : Real64 PSuction; // Suction Pressure
13200 : Real64 PCond; // Condensing pressure
13201 : Real64 PEvap; // Evaporating pressure
13202 : Real64 TCompOutEstimate; // Estimated temperature out of the compressor, used to flag whether heat reclaim is reasonable, C
13203 28288080 : Real64 TempInRated(0.0); // Temperature entering compressor at rated superheat, C //Autodesk:Init
13204 : Real64 TotalEnthalpyChangeActual; // Actual enthalpy change in cases and cold side of LSHX, J/kg
13205 : Real64 TsatforPsuct; // Tsat for PSuction, C
13206 28288080 : Real64 TsatforPdisch(0.0); // Tsat for Pdischarge, c
13207 : int NumComps; // Number of low-stage or high-stage compressors in system
13208 : Real64 HHiStageCompIn; // Enthalpy at inlet of high-stage compressor (J/kg)
13209 28288080 : Real64 HCaseInRated_base(0.0), HCompInRated_base(0.0); // Autodesk:Tuned Intermediate values for performance tuning
13210 :
13211 28288080 : auto &Condenser = state.dataRefrigCase->Condenser;
13212 28288080 : auto &Compressor = state.dataRefrigCase->Compressor;
13213 :
13214 28288080 : Real64 localTimeStep = (state.dataRefrigCase->UseSysTimeStep) ? state.dataHVACGlobal->TimeStepSys : state.dataGlobal->TimeStepZone;
13215 28288080 : Real64 localTimeStepSec = localTimeStep * Constant::rSecsInHour;
13216 :
13217 28288080 : int CondID = this->CondenserNum(1);
13218 28288080 : auto const &Condenser1 = Condenser(CondID);
13219 28288080 : Real64 const AccumLoad = max(0.0, (this->UnmetEnergy / localTimeStepSec)); // Load due to previously unmet compressor loads
13220 28288080 : Real64 const NeededCapacity_base(this->TotalSystemLoad + AccumLoad + this->PipeHeatLoad + this->LSHXTrans);
13221 :
13222 : // Before dispatching compressors, zero sum of compressor outputs and zero each compressor
13223 28288080 : this->TotCompCapacity = 0.0;
13224 28288080 : this->RefMassFlowComps = 0.0;
13225 28288080 : this->TotCompPower = 0.0;
13226 28288080 : if (this->NumStages == 2) {
13227 14160 : this->TotHiStageCompCapacity = 0.0;
13228 14160 : this->RefMassFlowHiStageComps = 0.0;
13229 14160 : this->TotHiStageCompPower = 0.0;
13230 : }
13231 :
13232 241470233 : for (int CompIndex = 1; CompIndex <= this->NumCompressors; ++CompIndex) {
13233 213182153 : int CompID = this->CompressorNum(CompIndex);
13234 213182153 : auto &compressor = Compressor(CompID);
13235 213182153 : compressor.Power = 0.0;
13236 213182153 : compressor.MassFlow = 0.0;
13237 213182153 : compressor.Capacity = 0.0;
13238 213182153 : compressor.ElecConsumption = 0.0;
13239 213182153 : compressor.CoolingEnergy = 0.0;
13240 213182153 : compressor.LoadFactor = 0.0;
13241 : }
13242 28288080 : if (this->NumStages == 2) {
13243 70800 : for (int CompIndex = 1; CompIndex <= this->NumHiStageCompressors; ++CompIndex) {
13244 56640 : int CompID = this->HiStageCompressorNum(CompIndex);
13245 56640 : auto &compressor = Compressor(CompID);
13246 56640 : compressor.Power = 0.0;
13247 56640 : compressor.MassFlow = 0.0;
13248 56640 : compressor.Capacity = 0.0;
13249 56640 : compressor.ElecConsumption = 0.0;
13250 56640 : compressor.CoolingEnergy = 0.0;
13251 56640 : compressor.LoadFactor = 0.0;
13252 : }
13253 : }
13254 :
13255 : // Determine properties at case inlet and compressor inlet
13256 56590320 : for (int StageIndex = 1; StageIndex <= min(2, this->NumStages); ++StageIndex) {
13257 28302240 : if (StageIndex == 1) { // Do single-stage or low-stage calculations
13258 28288080 : if (this->NumStages == 1) { // Single-stage system
13259 28273920 : NeededCapacity = NeededCapacity_base; // because compressor capacity rated from txv to comp inlet
13260 28273920 : TsatforPdisch = this->TCondense + DelTDischPipes; // need (Psat of (Tcond + delT corresponding to delP disch Pipes))
13261 28273920 : TsatforPsuct = this->TEvapNeeded - DelTSuctPipes; // need (Psat of (Tevap - delT corresponding to del P suct Pipes))
13262 28273920 : HsatVaporforTevapneeded = this->refrig->getSatEnthalpy(state, this->TEvapNeeded, 1.0, RoutineName);
13263 28273920 : this->HSatLiqCond = this->refrig->getSatEnthalpy(state, this->TCondense, 0.0, RoutineName);
13264 28273920 : this->CpSatLiqCond = this->refrig->getSatSpecificHeat(state, this->TCondense, 0.0, RoutineName);
13265 : // HCaseIn is a function of the condenser rated subcooling, not the compressor rated subcooling
13266 : // TCompIn needs to include case superheat as well as Temp change from lshx subcoolers
13267 : // Calculate both here unless set previously by subcooler subroutine
13268 : // HCaseOut corresponds to (tevapneeded + case superheat)
13269 : // future - visit how parameter 'casesuperheat' applies when using walk-ins or transfer loads
13270 28273920 : if (this->NumSubcoolers == 0) { // No subcooler on this system
13271 28249032 : this->HCaseIn = this->HSatLiqCond - this->CpSatLiqCond * Condenser1.RatedSubcool;
13272 28249032 : this->TCompIn = this->TEvapNeeded + CaseSuperheat; //+
13273 28249032 : this->TLiqInActual = this->TCondense - Condenser1.RatedSubcool;
13274 28249032 : this->HCompIn = this->HCaseOut;
13275 : } else { // subcooler subroutine has been called to calc TCompIn and HCaseIn
13276 24888 : this->HCompIn = this->HCaseOut + this->CpSatVapEvap * (this->TCompIn - (this->TEvapNeeded + CaseSuperheat));
13277 : } // whether or not subcooler routine used
13278 28273920 : PSuction = this->refrig->getSatPressure(state, TsatforPsuct, RoutineName);
13279 28273920 : NumComps = this->NumCompressors;
13280 : } else { // Low-stage side of two-stage system
13281 14160 : PCond = this->refrig->getSatPressure(state, this->TCondense, RoutineName);
13282 14160 : PEvap = this->refrig->getSatPressure(state, this->TEvapNeeded, RoutineName);
13283 14160 : this->PIntercooler = std::sqrt(PCond * PEvap);
13284 14160 : this->TIntercooler = this->refrig->getSatTemperature(state, this->PIntercooler, RoutineName);
13285 14160 : NeededCapacity = NeededCapacity_base; // because compressor capacity rated from txv to comp inlet
13286 14160 : TsatforPdisch = this->TIntercooler + DelTDischPipes; // need (Psat of (Tinter + delT corresponding to delP disch Pipes))
13287 14160 : TsatforPsuct = this->TEvapNeeded - DelTSuctPipes; // need (Psat of (Tevap - delT corresponding to del P suct Pipes))
13288 14160 : HsatVaporforTevapneeded = this->refrig->getSatEnthalpy(state, this->TEvapNeeded, 1.0, RoutineName);
13289 14160 : this->HSatLiqCond = this->refrig->getSatEnthalpy(state, this->TCondense, 0.0, RoutineName);
13290 14160 : this->CpSatLiqCond = this->refrig->getSatSpecificHeat(state, this->TCondense, 0.0, RoutineName);
13291 : // HCaseIn is a function of the condenser rated subcooling, not the compressor rated subcooling
13292 : // TCompIn needs to include case superheat as well as Temp change from lshx subcoolers
13293 : // Calculate both here unless set previously by subcooler subroutine
13294 : // HCaseOut corresponds to (tevapneeded + case superheat)
13295 14160 : if (this->NumSubcoolers == 0) { // No subcooler on this system
13296 14160 : if (this->intercoolerType == IntercoolerType::Flash) {
13297 7080 : this->HCaseIn = this->refrig->getSatEnthalpy(state, this->TIntercooler, 0.0, RoutineName);
13298 7080 : this->TLiqInActual = this->TIntercooler;
13299 7080 : } else if (this->intercoolerType == IntercoolerType::ShellAndCoil) {
13300 7080 : this->TLiqInActual = this->TCondense - Condenser1.RatedSubcool -
13301 7080 : this->IntercoolerEffectiveness * (this->TCondense - Condenser1.RatedSubcool - this->TIntercooler);
13302 7080 : this->HCaseIn = this->HSatLiqCond - this->CpSatLiqCond * (this->TCondense - this->TLiqInActual);
13303 : } // IntercoolerType
13304 14160 : this->TCompIn = this->TEvapNeeded + CaseSuperheat; //+
13305 14160 : this->HCompIn = this->HCaseOut;
13306 : } else { // subcooler subroutine has been called to calc TCompIn and HCaseIn
13307 0 : this->HCompIn = this->HCaseOut + this->CpSatVapEvap * (this->TCompIn - (this->TEvapNeeded + CaseSuperheat));
13308 : } // whether or not subcooler routine used
13309 14160 : PSuction = this->refrig->getSatPressure(state, TsatforPsuct, RoutineName);
13310 14160 : NumComps = this->NumCompressors;
13311 : } // NumStages
13312 : } else { // Two-stage system, high-stage side
13313 14160 : NeededCapacity = NeededCapacity_base + this->TotCompPower;
13314 14160 : TsatforPdisch = this->TCondense + DelTDischPipes;
13315 14160 : TsatforPsuct = this->TIntercooler;
13316 14160 : HsatVaporforTevapneeded = this->refrig->getSatEnthalpy(state, this->TIntercooler, 1.0, RoutineName);
13317 : // HSatLiqCond = Fluid::GetSatEnthalpyRefrig(state, RefrigerantName, TCondense, 0.0, RefIndex,
13318 : // RoutineName
13319 : //);
13320 : ////Autodesk:Tuned These don't change for 2nd stage
13321 : // CpSatLiqCond = Fluid::GetSatSpecificHeatRefrig(RefrigerantName, TCondense, 0.0, RefIndex,
13322 : // RoutineName );
13323 : ////Autodesk:Tuned These don't change for 2nd stage
13324 14160 : this->HCaseIn = this->HSatLiqCond - this->CpSatLiqCond * Condenser1.RatedSubcool;
13325 14160 : this->TCompIn = this->TIntercooler;
13326 : // System(SysNum)%TLiqInActual = System(SysNum)%TCondense-Condenser(System(SysNum)%CondenserNum(1))%RatedSubcool
13327 14160 : this->HCompIn = HsatVaporforTevapneeded;
13328 14160 : PSuction = this->refrig->getSatPressure(state, TsatforPsuct, RoutineName);
13329 14160 : NumComps = this->NumHiStageCompressors;
13330 : } // StageIndex
13331 :
13332 : // dispatch compressors to meet load, note they were listed in compressor list in dispatch order
13333 28302240 : DensityActual = this->refrig->getSupHeatDensity(state, this->TCompIn, PSuction, RoutineName); // Autodesk:Tuned Hoisted out of CompIndex loop
13334 28302240 : TotalEnthalpyChangeActual = this->HCompIn - this->HCaseIn; // Autodesk:Tuned Hoisted out of CompIndex loop
13335 28302240 : if (this->NumStages == 2) { // Autodesk:Tuned Hoisted out of CompIndex loop
13336 28320 : if (StageIndex == 1) {
13337 14160 : HCaseInRated_base = this->refrig->getSatEnthalpy(state, this->TIntercooler, 0.0, RoutineName);
13338 14160 : } else if (StageIndex == 2) {
13339 14160 : HCompInRated_base = this->refrig->getSatEnthalpy(state, this->TIntercooler, 1.0, RoutineName);
13340 : }
13341 : }
13342 62481607 : for (int CompIndex = 1; CompIndex <= NumComps; ++CompIndex) {
13343 : int CompID;
13344 61941838 : if (StageIndex == 1) {
13345 61919194 : CompID = this->CompressorNum(CompIndex);
13346 : } else {
13347 22644 : CompID = this->HiStageCompressorNum(CompIndex);
13348 : } // StageIndex
13349 61941838 : auto &compressor = Compressor(CompID);
13350 :
13351 : // need to use indiv compressor's rated subcool and superheat to adjust capacity to actual conditions
13352 61941838 : switch (compressor.SubcoolRatingType) {
13353 54880377 : case CompRatingType::Subcooling: {
13354 54880377 : if (this->NumStages == 1) { // Single-stage system
13355 54835430 : HCaseInRated = this->HSatLiqCond - this->CpSatLiqCond * compressor.RatedSubcool;
13356 44947 : } else if (this->NumStages == 2 && StageIndex == 1) { // Two-stage system, low-stage side
13357 22303 : HCaseInRated = HCaseInRated_base - this->CpSatLiqCond * compressor.RatedSubcool;
13358 22644 : } else if (this->NumStages == 2 && StageIndex == 2) { // Two-stage system, high-stage side
13359 22644 : HCaseInRated = this->HSatLiqCond - this->CpSatLiqCond * compressor.RatedSubcool;
13360 : } // NumStages
13361 54880377 : } break;
13362 7061461 : case CompRatingType::LiquidTemperature: { // have rated liquid temperature stored in "RatedSubcool"
13363 7061461 : if (this->NumStages == 1) { // Single-stage system
13364 7061461 : HCaseInRated = this->HSatLiqCond - this->CpSatLiqCond * (this->TCondense - compressor.RatedSubcool);
13365 0 : } else if (this->NumStages == 2 && StageIndex == 1) { // Two-stage system, low-stage side
13366 0 : HCaseInRated = HCaseInRated_base - this->CpSatLiqCond * (this->TIntercooler - compressor.RatedSubcool);
13367 0 : } else if (this->NumStages == 2 && StageIndex == 2) { // Two-stage system, high-stage side
13368 0 : HCaseInRated = this->HSatLiqCond - this->CpSatLiqCond * (this->TCondense - compressor.RatedSubcool);
13369 : } // NumStages
13370 7061461 : } break;
13371 0 : default:
13372 0 : break;
13373 : } // Compressor SubcoolRatingType
13374 61941838 : switch (compressor.SuperheatRatingType) {
13375 61387496 : case CompRatingType::Superheat: {
13376 61387496 : if (this->NumStages == 1) { // Single-stage system
13377 61365193 : HCompInRated = HsatVaporforTevapneeded + this->CpSatVapEvap * compressor.RatedSuperheat;
13378 61365193 : TempInRated = this->TEvapNeeded + compressor.RatedSuperheat;
13379 22303 : } else if (this->NumStages == 2 && StageIndex == 1) { // Two-stage system, low-stage side
13380 22303 : HCompInRated = HsatVaporforTevapneeded + this->CpSatVapEvap * compressor.RatedSuperheat;
13381 22303 : TempInRated = this->TEvapNeeded + compressor.RatedSuperheat;
13382 0 : } else if (this->NumStages == 2 && StageIndex == 2) { // Two-stage system, high-stage side
13383 0 : HCompInRated = HCompInRated_base + this->CpSatVapEvap * compressor.RatedSuperheat;
13384 0 : TempInRated = this->TIntercooler + compressor.RatedSuperheat;
13385 : } // NumStages
13386 61387496 : } break;
13387 554342 : case CompRatingType::ReturnGasTemperature: { // have rated compressor inlet temperature stored in "RatedSuperheat"
13388 554342 : if (this->NumStages == 1) { // Single-stage system
13389 531698 : TempInRated = compressor.RatedSuperheat;
13390 531698 : HCompInRated = HsatVaporforTevapneeded + this->CpSatVapEvap * (TempInRated - this->TEvapNeeded);
13391 22644 : } else if (this->NumStages == 2 && StageIndex == 1) { // Two-stage system, low-stage side
13392 0 : TempInRated = compressor.RatedSuperheat;
13393 0 : HCompInRated = HsatVaporforTevapneeded + this->CpSatVapEvap * (TempInRated - this->TEvapNeeded);
13394 22644 : } else if (this->NumStages == 2 && StageIndex == 2) { // Two-stage system, high-stage side
13395 22644 : TempInRated = compressor.RatedSuperheat;
13396 22644 : HCompInRated = HsatVaporforTevapneeded + this->CpSatVapEvap * (TempInRated - this->TIntercooler);
13397 : } // NumStages
13398 554342 : } break;
13399 0 : default:
13400 0 : break;
13401 : } // Compressor SuperheatRatingType
13402 :
13403 61941838 : CaseEnthalpyChangeRated = HCompInRated - HCaseInRated;
13404 61941838 : DensityRated = this->refrig->getSupHeatDensity(state, TempInRated, PSuction, RoutineName);
13405 : // Adjust capacity and mass flow to reflect the specific volume change due to superheating and
13406 : // the increase in capacity due to extra subcooling
13407 61941838 : MassCorrection = DensityActual / DensityRated;
13408 61941838 : CapacityCorrection = MassCorrection * TotalEnthalpyChangeActual / CaseEnthalpyChangeRated;
13409 61941838 : compressor.Power = Curve::CurveValue(state, compressor.ElecPowerCurvePtr, TsatforPsuct, TsatforPdisch);
13410 61941838 : compressor.Capacity = CapacityCorrection * Curve::CurveValue(state, compressor.CapacityCurvePtr, TsatforPsuct, TsatforPdisch);
13411 61941838 : compressor.MassFlow = compressor.Capacity / TotalEnthalpyChangeActual;
13412 :
13413 : // calculate load factor for last compressor added
13414 : // assumes either cycling or part load eff = full load eff for last compressor
13415 61941838 : if (StageIndex == 1) { // Single-stage or low-stage compressors
13416 61919194 : if ((this->TotCompCapacity + compressor.Capacity) >= NeededCapacity) {
13417 27748311 : LFLastComp = (NeededCapacity - this->TotCompCapacity) / compressor.Capacity;
13418 27748311 : compressor.Power *= LFLastComp;
13419 27748311 : compressor.MassFlow *= LFLastComp;
13420 27748311 : compressor.Capacity *= LFLastComp;
13421 27748311 : this->TotCompCapacity += compressor.Capacity;
13422 27748311 : this->RefMassFlowComps += compressor.MassFlow;
13423 27748311 : this->TotCompPower += compressor.Power;
13424 27748311 : compressor.ElecConsumption = compressor.Power * localTimeStepSec;
13425 27748311 : compressor.CoolingEnergy = compressor.Capacity * localTimeStepSec;
13426 27748311 : compressor.LoadFactor = LFLastComp;
13427 27748311 : break; // numcomps do
13428 : } else { //>= needed capacity
13429 34170883 : this->TotCompCapacity += compressor.Capacity;
13430 34170883 : this->RefMassFlowComps += compressor.MassFlow;
13431 34170883 : this->TotCompPower += compressor.Power;
13432 : } //>= needed capacity
13433 : } else { // high-stage compressors (for two-stage systems only)
13434 22644 : if ((this->TotHiStageCompCapacity + compressor.Capacity) >= NeededCapacity) {
13435 14160 : LFLastComp = (NeededCapacity - this->TotHiStageCompCapacity) / compressor.Capacity;
13436 14160 : compressor.Power *= LFLastComp;
13437 14160 : compressor.MassFlow *= LFLastComp;
13438 14160 : compressor.Capacity *= LFLastComp;
13439 14160 : this->TotHiStageCompCapacity += compressor.Capacity;
13440 14160 : this->RefMassFlowHiStageComps += compressor.MassFlow;
13441 14160 : this->TotHiStageCompPower += compressor.Power;
13442 14160 : this->FlowRatioIntercooler = this->RefMassFlowComps / this->RefMassFlowHiStageComps;
13443 14160 : compressor.ElecConsumption = compressor.Power * localTimeStepSec;
13444 14160 : compressor.CoolingEnergy = compressor.Capacity * localTimeStepSec;
13445 14160 : compressor.LoadFactor = LFLastComp;
13446 14160 : break; // numcomps do
13447 : } else { //>= needed capacity
13448 8484 : this->TotHiStageCompCapacity += compressor.Capacity;
13449 8484 : this->RefMassFlowHiStageComps += compressor.MassFlow;
13450 8484 : this->TotHiStageCompPower += compressor.Power;
13451 : } //>= needed capacity
13452 : } // StageIndex
13453 34179367 : compressor.ElecConsumption = compressor.Power * localTimeStepSec;
13454 34179367 : compressor.CoolingEnergy = compressor.Capacity * localTimeStepSec;
13455 34179367 : compressor.LoadFactor = 1.0;
13456 : } // NumComps
13457 : }
13458 :
13459 : // Calculate enthalpy at compressor discharge
13460 28288080 : if (this->NumStages == 1) { // Single-stage or low-stage compressors
13461 28273920 : this->HCompOut = this->HCompIn + this->TotCompPower / this->RefMassFlowComps;
13462 : // error found 9/19/2011, was System(SysNum)%TotCompPower*LocalTimeStep*DataGlobals::SecInHour/System(SysNum)%RefMassFlowComps
13463 : } else { // High-stage compressors (only for two-stage systems)
13464 14160 : HHiStageCompIn = this->refrig->getSatEnthalpy(state, this->TIntercooler, 1.0, RoutineName);
13465 14160 : this->HCompOut = HHiStageCompIn + this->TotHiStageCompPower / this->RefMassFlowHiStageComps;
13466 : }
13467 :
13468 : // Calculate superheat energy available for desuperheaters
13469 28288080 : HSatVapCondense = this->refrig->getSatEnthalpy(state, this->TCondense, 1.0, RoutineName);
13470 28288080 : CpSatVapCondense = this->refrig->getSatSpecificHeat(state, this->TCondense, 1.0, RoutineName);
13471 28288080 : if (this->NumStages == 1) { // Single-stage systems
13472 28273920 : state.dataHeatBal->HeatReclaimRefrigCondenser(CondID).AvailCapacity = this->RefMassFlowComps * (this->HCompOut - HSatVapCondense);
13473 : } else { // Two-stage systems
13474 14160 : state.dataHeatBal->HeatReclaimRefrigCondenser(CondID).AvailCapacity = this->RefMassFlowHiStageComps * (this->HCompOut - HSatVapCondense);
13475 : } // NumStages
13476 :
13477 : // No function available to get Tout as f(Pout, Hout), so use estimate based on constant cp in superheat range...
13478 : // Use average of Tcondense and Tout of condenser as check for whether heat reclaim is reasonable.
13479 28288080 : TCompOutEstimate = this->TCondense + (this->HCompOut - HSatVapCondense) / CpSatVapCondense;
13480 :
13481 28288080 : state.dataHeatBal->HeatReclaimRefrigCondenser(CondID).AvailTemperature = (TsatforPdisch + TCompOutEstimate) / 2.0;
13482 28288080 : this->AverageCompressorCOP = this->TotCompCapacity / (this->TotCompPower + this->TotHiStageCompPower);
13483 28288080 : this->TotCompElecConsump = this->TotCompPower * localTimeStepSec;
13484 28288080 : if (this->NumStages == 2) {
13485 14160 : this->TotHiStageCompElecConsump = this->TotHiStageCompPower * localTimeStepSec;
13486 14160 : this->TotCompElecConsumpTwoStage = this->TotCompElecConsump + this->TotHiStageCompElecConsump;
13487 : }
13488 28288080 : this->TotCompCoolingEnergy = this->TotCompCapacity * localTimeStepSec;
13489 28288080 : this->TotHiStageCompCoolingEnergy = this->TotHiStageCompCapacity * localTimeStepSec;
13490 28288080 : }
13491 :
13492 10701 : void TransRefrigSystemData::CalculateTransCompressors(EnergyPlusData &state)
13493 : {
13494 :
13495 : // SUBROUTINE INFORMATION:
13496 : // AUTHOR Brian A. Fricke, ORNL
13497 : // DATE WRITTEN Fall 2011
13498 : // RE-ENGINEERED na
13499 :
13500 : // PURPOSE OF THIS SUBROUTINE:
13501 : // Find the compressor power, energy, capacity, and efficiency for a detailed transcritical CO2
13502 : // refrigeration system.
13503 :
13504 : // METHODOLOGY EMPLOYED:
13505 : // Use AHRI compressor performance curves for subcritical compressor operation, AHRI-style compressor
13506 : // performance curves for transcritical compressor operation, the evaporating temperature of the
13507 : // medium- and low-temperature loads, and the gas cooler outlet conditions (temperature, pressure
13508 : // and enthalpy).
13509 :
13510 : // REFERENCES:
13511 : // ANSI/AHRI. 2004. Standard 540, Standard for Performance Rating of Positive Displacement Refrigerant
13512 : // Compressors and Compressor Units. Arlington, VA: Air-Conditioning, Heating, and Refrigeration
13513 : // Institute.
13514 : // Ge, Y.T., and S.A. Tassou. 2011. Performance evaluation and optimal design of supermarket refrigeration
13515 : // systems with supermarket model "SuperSim", Part I: Model description and validation. International
13516 : // Journal of Refrigeration 34: 527-539.
13517 : // Ge, Y.T., and S.A. Tassou. 2011. Performance evaluation and optimal design of supermarket refrigeration
13518 : // systems with supermarket model "SuperSim", Part II: Model applications. International Journal of
13519 : // Refrigeration 34: 540-549.
13520 : // Sawalha, S. 2008. Theoretical evaluation of trans-critical CO2 systems in supermarket refrigeration,
13521 : // Part I: Modeling, simulation and optimization of two system solutions. International Journal of
13522 : // Refrigeration 31: 516-524.
13523 : // Sawalha, S. 2008. Theoretical evaluation of trans-critical CO2 systems in supermarket refrigeration,
13524 : // Part II: System modifications and comparisons of different solutions. International Journal of
13525 : // Refrigeration 31: 525-534.
13526 :
13527 : // SUBROUTINE PARAMETER DEFINITIONS:
13528 : // Following constants approp for R22, R134a, R404a, R507, R410a, R407c.
13529 : // For the same pressure drop, CO2 has a corresponding temperature penalty 5 to 10 times smaller than
13530 : // ammonia and R-134a (ASHRAE Handbook of Refrigeration, 2010, p. 3.7). Ignore pressure drop for CO2 calculations.
13531 : // NOTE, these DelT...Pipes reflect the decrease in Pressure in the pipes, NOT thermal transfer through the pipe walls.
13532 :
13533 10701 : Real64 constexpr ErrorTol(0.001); // Iterative solution tolerance
13534 :
13535 : static constexpr std::string_view RoutineName("RefrigeratedCase:CalculateTransCompressors");
13536 : int Iter; // Iteration counter
13537 : Real64 CapacityCorrectionMT; // Capacity at existing subcool/superheat over cap at rated conditions for MT loads
13538 : Real64 CaseEnthalpyChangeRatedMT; // Enthalpy change in medium temperature cases at compressor rated cond, J/kg
13539 : Real64 CaseEnthalpyChangeRatedLT; // Enthalpy change in low temperature cases at compressor rated cond, J/kg
13540 : Real64 DensityActualLT; // Density of superheated gas at LP compressor inlet, m3/kg
13541 : Real64 DensityActualMT; // Density of superheated gas at HP compressor inlet, m3/kg
13542 : Real64 DensityRatedHP; // Density of high pressure compressor inlet gas at rated superheat, m3/kg
13543 : Real64 DensityRatedLP; // Density of low pressure compressor inlet gas at rated superheat, m3/kg
13544 : Real64 HCaseInRatedLT; // Enthalpy entering low temperature cases at rated subcooling, J/kg
13545 : Real64 HCaseInRatedMT; // Enthalpy entering medium temperature cases at rated subcooling, J/kg
13546 10701 : Real64 HCompInRatedHP(0.0); // Enthalpy entering high pressure compressor at rated superheat, J/kg
13547 : Real64 HCompInRatedLP; // Enthalpy entering low pressure compressor at rated superheat, J/kg
13548 : Real64 HGCOutlet; // Enthalpy at gas cooler outlet, J/kg
13549 : Real64 HIdeal; // Ideal enthalpy at subcooler (for 100% effectiveness)
13550 : Real64 HsatLiqforTevapNeededMT; // Enthalpy of saturated liquid at MT evaporator, J/kg
13551 : Real64 HsatVaporforTevapneededMT; // Enthalpy of saturated vapor at MT evaporator (transcritical cycle), J/kg
13552 : Real64 HsatVaporforTevapneededLT; // Enthalpy of saturated vapor at LT evaporator (transcritical cycle), J/kg
13553 : Real64 LFLastComp; // Load factor for last compressor dispatched
13554 : Real64 MassCorrectionLT; // Mass flow at existing subcool/superheat over cap at rated conditions for LT loads
13555 : Real64 MassCorrectionMT; // Mass flow at existing subcool/superheat over cap at rated conditions for MT loads
13556 : Real64 NeededCapacityLT; // Sum of LT case loads and mech subcooler loads (transcritical cycle), W
13557 : Real64 NeededCapacityMT; // Sum of MT case loads and mech subcooler loads (transcritical cycle), W
13558 : Real64 PSuctionLT; // Suction pressure in low temperature cases, Pa
13559 : Real64 PSuctionMT; // Suction pressure in medium temperature cases, Pa
13560 : Real64 PGCOutlet; // Gas cooler outlet pressure, Pa
13561 10701 : Real64 QualityReceiver(0.0); // Refrigerant quality in the receiver
13562 : Real64 SubcoolEffect; // Heat exchanger effectiveness of the subcooler
13563 : Real64 TempInRatedHP; // Temperature entering high pressure compressor at rated superheat, C
13564 : Real64 TempInRatedLP; // Temperature entering low pressure compressor at rated superheat, C
13565 : Real64 TsatforPdisLT; // Low temperature saturated discharge temperature (transcritical cycle), C
13566 : Real64 TsatforPdisMT; // Medium temperature saturated discharge temperature (transcritical cycle), C
13567 : Real64 TsatforPsucLT; // Low temperature saturated suction temperature (transcritical cycle), C
13568 : Real64 TsatforPsucMT; // Medium temperature saturated suction temperature (transcritical cycle), C
13569 : Real64 TSubcoolerColdIn; // Suction gas temperature at the inlet of the subcooler, C
13570 : Real64 TotalEnthalpyChangeActualLT; // Actual enthalpy change in LT cases, J/kg
13571 : Real64 TotalEnthalpyChangeActualMT; // Actual enthalpy change in MT cases, J/kg
13572 : Real64 TotalRefMassFlow; // Total mass flow through high pressure side of system, kg/s
13573 : Real64 Xu; // Initial upper guess for iterative search
13574 : Real64 Xl; // Initial lower guess for iterative search
13575 10701 : Real64 Xnew(0.0); // New guess for iterative search
13576 :
13577 10701 : auto &Compressor = state.dataRefrigCase->Compressor;
13578 10701 : auto &GasCooler = state.dataRefrigCase->GasCooler;
13579 :
13580 10701 : Real64 localTimeStep = (state.dataRefrigCase->UseSysTimeStep) ? state.dataHVACGlobal->TimeStepSys : state.dataGlobal->TimeStepZone;
13581 10701 : Real64 localTimeStepSec = localTimeStep * Constant::rSecsInHour;
13582 :
13583 : // Determine refrigerating capacity needed
13584 : // Load due to previously unmet low temperature compressor loads (transcritical system)
13585 : Real64 AccumLoadLT;
13586 10701 : NeededCapacityLT = 0.0;
13587 10701 : if (this->transSysType == TransSysType::TwoStage) {
13588 10701 : AccumLoadLT = max(0.0, (this->UnmetEnergyLT / localTimeStep / Constant::rSecsInHour)); // localTimeStep / rSecsInHour?
13589 10701 : NeededCapacityLT = this->TotalSystemLoadLT + AccumLoadLT + this->PipeHeatLoadLT;
13590 : } // (TransSystem(SysNum)%TransSysType == 2)
13591 :
13592 : // Load due to previously unmet medium temperature compressor loads (transcritical system)
13593 10701 : Real64 AccumLoadMT = max(0.0, (this->UnmetEnergyMT / localTimeStep / Constant::rSecsInHour));
13594 10701 : NeededCapacityMT = this->TotalSystemLoadMT + AccumLoadMT + this->PipeHeatLoadMT;
13595 :
13596 : // Determine refrigerant properties at receiver
13597 10701 : this->CpSatLiqReceiver = this->refrig->getSatSpecificHeat(state, this->TReceiver, 0.0, RoutineName);
13598 :
13599 : // Enthalpy at the receiver bypass, J/kg
13600 10701 : Real64 HReceiverBypass = this->refrig->getSatEnthalpy(state, this->TReceiver, 1.0, RoutineName);
13601 :
13602 : // Determine refrigerant properties at low temperature (LT) loads (if present)
13603 : // Dispatch low pressure (LP) compressors as necessary
13604 10701 : if (this->transSysType == TransSysType::TwoStage) { // LT side of TwoStage transcritical system
13605 10701 : this->HCaseInLT = this->HSatLiqReceiver;
13606 : // TCompInLP and HCompInLP include case superheat plus effect of suction line heat gain
13607 10701 : this->TCompInLP = this->TEvapNeededLT + TransCaseSuperheat + this->PipeHeatLoadLT / (this->CpSatVapEvapLT * this->RefMassFlowtoLTLoads);
13608 10701 : this->HCompInLP = this->HCaseOutLT + this->PipeHeatLoadLT / this->RefMassFlowtoLTLoads;
13609 10701 : TsatforPsucLT = this->TEvapNeededLT;
13610 10701 : TsatforPdisLT = this->TEvapNeededMT;
13611 10701 : HsatVaporforTevapneededLT = this->refrig->getSatEnthalpy(state, this->TEvapNeededLT, 1.0, RoutineName);
13612 10701 : HsatLiqforTevapNeededMT = this->refrig->getSatEnthalpy(state, this->TEvapNeededMT, 0.0, RoutineName);
13613 10701 : PSuctionLT = this->refrig->getSatPressure(state, TsatforPsucLT, RoutineName);
13614 10701 : DensityActualLT = this->refrig->getSupHeatDensity(state, this->TCompInLP, PSuctionLT, RoutineName);
13615 10701 : TotalEnthalpyChangeActualLT = this->HCompInLP - this->HCaseInLT;
13616 :
13617 : // Dispatch low pressure (LP) compressors
13618 : // Before dispatching LP compressors, zero sum of compressor outputs and zero each compressor
13619 10701 : this->TotCompCapacityLP = 0.0;
13620 10701 : this->RefMassFlowCompsLP = 0.0;
13621 10701 : this->TotCompPowerLP = 0.0;
13622 :
13623 42804 : for (int CompIndex = 1; CompIndex <= this->NumCompressorsLP; ++CompIndex) {
13624 32103 : int CompID = this->CompressorNumLP(CompIndex);
13625 32103 : Compressor(CompID).Power = 0.0;
13626 32103 : Compressor(CompID).MassFlow = 0.0;
13627 32103 : Compressor(CompID).Capacity = 0.0;
13628 32103 : Compressor(CompID).ElecConsumption = 0.0;
13629 32103 : Compressor(CompID).CoolingEnergy = 0.0;
13630 32103 : Compressor(CompID).LoadFactor = 0.0;
13631 : }
13632 :
13633 16140 : for (int CompIndex = 1; CompIndex <= this->NumCompressorsLP; ++CompIndex) {
13634 16140 : int CompID = this->CompressorNumLP(CompIndex);
13635 16140 : auto &compressor = Compressor(CompID);
13636 : // need to use indiv compressor's rated subcool and superheat to adjust capacity to actual conditions
13637 16140 : switch (compressor.SubcoolRatingType) {
13638 16140 : case CompRatingType::Subcooling: {
13639 16140 : HCaseInRatedLT = HsatLiqforTevapNeededMT - this->CpSatLiqReceiver * compressor.RatedSubcool;
13640 16140 : } break;
13641 0 : case CompRatingType::LiquidTemperature: { // have rated liquid temperature stored in "RatedSubcool"
13642 0 : HCaseInRatedLT = this->refrig->getSatEnthalpy(state, compressor.RatedSubcool, 0.0, RoutineName);
13643 0 : } break;
13644 0 : default:
13645 0 : break;
13646 : }
13647 16140 : switch (compressor.SuperheatRatingType) {
13648 16140 : case CompRatingType::Superheat: {
13649 16140 : HCompInRatedLP = HsatVaporforTevapneededLT + this->CpSatVapEvapLT * compressor.RatedSuperheat;
13650 16140 : TempInRatedLP = this->TEvapNeededLT + compressor.RatedSuperheat;
13651 16140 : } break;
13652 0 : case CompRatingType::ReturnGasTemperature: { // have rated compressor inlet temperature stored in
13653 : // "CompRatingType::Superheat"
13654 0 : TempInRatedLP = compressor.RatedSuperheat;
13655 0 : HCompInRatedLP = this->refrig->getSupHeatEnthalpy(state, compressor.RatedSuperheat, PSuctionLT, RoutineName);
13656 0 : } break;
13657 0 : default:
13658 0 : break;
13659 : }
13660 :
13661 16140 : CaseEnthalpyChangeRatedLT = HCompInRatedLP - HCaseInRatedLT;
13662 16140 : DensityRatedLP = this->refrig->getSupHeatDensity(state, TempInRatedLP, PSuctionLT, RoutineName);
13663 :
13664 : // Adjust capacity and mass flow to reflect the specific volume change due to superheating and
13665 : // the increase in capacity due to extra subcooling
13666 16140 : MassCorrectionLT = DensityActualLT / DensityRatedLP;
13667 : // Capacity at existing subcool/superheat over cap at rated conditions for LT loads
13668 16140 : Real64 CapacityCorrectionLT = MassCorrectionLT * TotalEnthalpyChangeActualLT / CaseEnthalpyChangeRatedLT;
13669 16140 : compressor.Power = Curve::CurveValue(state, compressor.ElecPowerCurvePtr, TsatforPsucLT, TsatforPdisLT);
13670 16140 : compressor.Capacity = CapacityCorrectionLT * Curve::CurveValue(state, compressor.CapacityCurvePtr, TsatforPsucLT, TsatforPdisLT);
13671 16140 : compressor.MassFlow = compressor.Capacity / TotalEnthalpyChangeActualLT;
13672 16140 : compressor.ElecConsumption = compressor.Power * localTimeStepSec;
13673 16140 : compressor.CoolingEnergy = compressor.Capacity * localTimeStepSec;
13674 16140 : compressor.LoadFactor = 1.0;
13675 16140 : if ((this->TotCompCapacityLP + compressor.Capacity) >= NeededCapacityLT) {
13676 10701 : LFLastComp = (NeededCapacityLT - this->TotCompCapacityLP) / compressor.Capacity;
13677 10701 : compressor.Power *= LFLastComp;
13678 10701 : compressor.MassFlow *= LFLastComp;
13679 10701 : compressor.Capacity *= LFLastComp;
13680 10701 : this->TotCompCapacityLP += compressor.Capacity;
13681 10701 : this->RefMassFlowCompsLP += compressor.MassFlow;
13682 10701 : this->TotCompPowerLP += compressor.Power;
13683 10701 : compressor.ElecConsumption = compressor.Power * localTimeStepSec;
13684 10701 : compressor.CoolingEnergy = compressor.Capacity * localTimeStepSec;
13685 10701 : compressor.LoadFactor = LFLastComp;
13686 10701 : break;
13687 : } else {
13688 5439 : this->TotCompCapacityLP += compressor.Capacity;
13689 5439 : this->RefMassFlowCompsLP += compressor.MassFlow;
13690 5439 : this->TotCompPowerLP += compressor.Power;
13691 : }
13692 : } // NumCompressorsLP
13693 10701 : this->HCompOutLP = this->HCompInLP + this->TotCompPowerLP / this->RefMassFlowCompsLP;
13694 : } // (TransSystem(SysNum)%TransSysType == 2)
13695 :
13696 : // Determine refrigerant properties at medium temperature (MT) loads
13697 : // Dispatch high pressure (HP) compressors as necessary
13698 10701 : TsatforPsucMT = this->TEvapNeededMT;
13699 10701 : if (GasCooler(this->GasCoolerNum(1)).TransOpFlag) { // Transcritical system is operating in transcritical region
13700 4375 : HGCOutlet = GasCooler(this->GasCoolerNum(1)).HGasCoolerOut;
13701 : } else { // Transcritical system is operating in subcritical region
13702 6326 : TsatforPdisMT = GasCooler(this->GasCoolerNum(1)).TGasCoolerOut;
13703 : }
13704 10701 : PSuctionMT = this->refrig->getSatPressure(state, TsatforPsucMT, RoutineName);
13705 10701 : PGCOutlet = GasCooler(this->GasCoolerNum(1)).PGasCoolerOut;
13706 10701 : HsatVaporforTevapneededMT = this->refrig->getSatEnthalpy(state, this->TEvapNeededMT, 1.0, RoutineName);
13707 10701 : this->HCaseInMT = this->HSatLiqReceiver;
13708 : // Enthalpy of refrigerant after leaving medium temperature loads and low pressure compressors
13709 :
13710 : // Combined enthalpy from the outlets of the LP compressor and MT loads, J/kg
13711 10701 : Real64 HCaseOutLTMT = (this->RefMassFlowtoLTLoads * this->HCompOutLP + this->RefMassFlowtoMTLoads * this->HCaseOutMT + this->PipeHeatLoadMT) /
13712 10701 : (this->RefMassFlowtoLTLoads + this->RefMassFlowtoMTLoads);
13713 :
13714 : // Total refrigerant flow rate is total flow from LT and MT loads divided by (1-x) where x is the quality of the
13715 : // refrigerant entering the receiver. The receiver bypass flow rate is (x)*(Total Flow).
13716 : // Iterate to find the quality of the refrigerant entering the receiver.
13717 10701 : Xu = 1.0; // upper bound on quality
13718 10701 : Xl = 0.0; // lower bound on quality
13719 10701 : if ((GasCooler(this->GasCoolerNum(1)).HGasCoolerOut + this->DelHSubcoolerDis) > this->HSatLiqReceiver) {
13720 80814 : for (Iter = 1; Iter <= 15; ++Iter) { // Maximum of 15 iterations to find receiver quality
13721 80814 : QualityReceiver = (Xu + Xl) / 2.0;
13722 80814 : Real64 Hnew = this->refrig->getSatEnthalpy(state, this->TReceiver, QualityReceiver, RoutineName);
13723 :
13724 : // estimated QualityReceiver is too high
13725 80814 : if (Hnew > (GasCooler(this->GasCoolerNum(1)).HGasCoolerOut + this->DelHSubcoolerDis)) {
13726 44582 : Xu = QualityReceiver;
13727 : } else { // estimated QualityReceiver is too low
13728 36232 : Xl = QualityReceiver;
13729 : }
13730 80814 : if (std::abs((Hnew - (GasCooler(this->GasCoolerNum(1)).HGasCoolerOut + this->DelHSubcoolerDis)) / Hnew) < ErrorTol) {
13731 10701 : break;
13732 : }
13733 : }
13734 10701 : TotalRefMassFlow = (this->RefMassFlowtoLTLoads + this->RefMassFlowtoMTLoads) / (1.0 - QualityReceiver);
13735 10701 : this->RefMassFlowReceiverBypass = QualityReceiver * TotalRefMassFlow;
13736 : } else {
13737 0 : this->RefMassFlowReceiverBypass = 0.0;
13738 0 : TotalRefMassFlow = (this->RefMassFlowtoLTLoads + this->RefMassFlowtoMTLoads);
13739 : } // %HGasCoolerOut > TransSystem(SysNum)%HSatLiqReceiver)
13740 :
13741 10701 : this->HCompInHP = (HCaseOutLTMT * (this->RefMassFlowtoLTLoads + this->RefMassFlowtoMTLoads) + HReceiverBypass * this->RefMassFlowReceiverBypass) /
13742 10701 : (this->RefMassFlowtoLTLoads + this->RefMassFlowtoMTLoads + this->RefMassFlowReceiverBypass);
13743 :
13744 : // Iterate to find the suction temperature entering subcooler
13745 10701 : Xl = this->refrig->getSatTemperature(state, PSuctionMT, RoutineName);
13746 10701 : Xu = Xl + 50.0;
13747 55697 : for (Iter = 1; Iter <= 15; ++Iter) { // Maximum of 15 iterations
13748 55697 : Xnew = (Xu + Xl) / 2.0;
13749 55697 : Real64 Hnew = this->refrig->getSupHeatEnthalpy(state, Xnew, PSuctionMT, RoutineName);
13750 55697 : if (Hnew > this->HCompInHP) { // xnew is too high
13751 30438 : Xu = Xnew;
13752 : } else { // xnew is too low
13753 25259 : Xl = Xnew;
13754 : }
13755 55697 : if (std::abs((Hnew - this->HCompInHP) / Hnew) < ErrorTol) {
13756 10701 : break;
13757 : }
13758 : }
13759 10701 : TSubcoolerColdIn = Xnew;
13760 :
13761 : // Modify receiver inlet enthalpy and HP compressor inlet enthalpy to account for subcooler
13762 10701 : HIdeal = this->refrig->getSupHeatEnthalpy(state, GasCooler(this->GasCoolerNum(1)).TGasCoolerOut, PSuctionMT, RoutineName);
13763 : // Only use subcooler if suction gas inlet temperature less than gas cooler outlet temperature
13764 10701 : if (TSubcoolerColdIn < GasCooler(this->GasCoolerNum(1)).TGasCoolerOut) {
13765 10701 : SubcoolEffect = this->SCEffectiveness;
13766 : } else {
13767 0 : SubcoolEffect = 0.0;
13768 : } // (TSubcoolerColdIn < GasCooler(SysNum)%TGasCoolerOut)
13769 10701 : this->DelHSubcoolerSuc = SubcoolEffect * (HIdeal - this->HCompInHP);
13770 10701 : this->HCompInHP += this->DelHSubcoolerSuc;
13771 10701 : this->DelHSubcoolerDis = -this->DelHSubcoolerSuc;
13772 :
13773 : // Iterate to find the temperature at the inlet of the high pressure (HP) compressors
13774 10701 : Xl = this->refrig->getSatTemperature(state, PSuctionMT, RoutineName);
13775 10701 : Xu = Xl + 50.0;
13776 53149 : for (Iter = 1; Iter <= 15; ++Iter) { // Maximum of 15 iterations
13777 53149 : Xnew = (Xu + Xl) / 2.0;
13778 53149 : Real64 Hnew = this->refrig->getSupHeatEnthalpy(state, Xnew, PSuctionMT, RoutineName);
13779 53149 : if (Hnew > this->HCompInHP) { // xnew is too high
13780 22851 : Xu = Xnew;
13781 : } else { // xnew is too low
13782 30298 : Xl = Xnew;
13783 : }
13784 53149 : if (std::abs((Hnew - this->HCompInHP) / Hnew) < ErrorTol) {
13785 10701 : break;
13786 : }
13787 : }
13788 10701 : this->TCompInHP = Xnew;
13789 :
13790 : // For capacity correction of HP compressors, consider subcooler, receiver, MT loads, LT loads and LP compressors
13791 : // to constitute the "load". The actual and rated conditions at the exit of the gas cooler and the inlet of the
13792 : // HP compressors are used for capacity correction calculations.
13793 10701 : DensityActualMT = this->refrig->getSupHeatDensity(state, this->TCompInHP, PSuctionMT, RoutineName);
13794 10701 : TotalEnthalpyChangeActualMT = this->HCompInHP - GasCooler(this->GasCoolerNum(1)).HGasCoolerOut;
13795 :
13796 : // Dispatch HP compressors
13797 : // Before dispatching HP compressors, zero sum of compressor outputs and zero each compressor
13798 10701 : this->TotCompCapacityHP = 0.0;
13799 10701 : this->RefMassFlowCompsHP = 0.0;
13800 10701 : this->TotCompPowerHP = 0.0;
13801 :
13802 42804 : for (int CompIndex = 1; CompIndex <= this->NumCompressorsHP; ++CompIndex) {
13803 32103 : int CompID = this->CompressorNumHP(CompIndex);
13804 32103 : auto &compressor = Compressor(CompID);
13805 32103 : compressor.Power = 0.0;
13806 32103 : compressor.MassFlow = 0.0;
13807 32103 : compressor.Capacity = 0.0;
13808 32103 : compressor.ElecConsumption = 0.0;
13809 32103 : compressor.CoolingEnergy = 0.0;
13810 32103 : compressor.LoadFactor = 0.0;
13811 : }
13812 :
13813 : // Dispatch High Pressure compressors to meet load, note they were listed in compressor list in dispatch order
13814 12525 : for (int CompIndex = 1; CompIndex <= this->NumCompressorsHP; ++CompIndex) {
13815 12525 : int CompID = this->CompressorNumHP(CompIndex);
13816 12525 : auto &compressor = Compressor(CompID);
13817 : // Need to use indiv compressor's rated subcool and superheat to adjust capacity to actual conditions
13818 : // Transcritical operation requires rated superheat
13819 : // Subcritical operation requires rated subcool and rated superheat
13820 12525 : switch (compressor.SubcoolRatingType) {
13821 12525 : case CompRatingType::Subcooling: {
13822 12525 : if (!GasCooler(this->GasCoolerNum(1)).TransOpFlag) { // Subcritical operation
13823 6326 : HCaseInRatedMT =
13824 6326 : GasCooler(this->GasCoolerNum(1)).HGasCoolerOut - GasCooler(this->GasCoolerNum(1)).CpGasCoolerOut * compressor.RatedSubcool;
13825 : } else { // Transcritical operation
13826 6199 : HCaseInRatedMT = GasCooler(this->GasCoolerNum(1)).HGasCoolerOut;
13827 : } // (.NOT.GasCooler(SysNum)%TransOpFlag)
13828 12525 : } break;
13829 0 : case CompRatingType::LiquidTemperature: { // have rated liquid temperature stored in "RatedSubcool"
13830 0 : if (!GasCooler(this->GasCoolerNum(1)).TransOpFlag) { // Subcritical operation
13831 0 : HCaseInRatedMT = this->refrig->getSatEnthalpy(state, compressor.RatedSubcool, 0.0, RoutineName);
13832 : } else { // Transcritical operation
13833 0 : HCaseInRatedMT = GasCooler(this->GasCoolerNum(1)).HGasCoolerOut;
13834 : } // (.NOT.GasCooler(SysNum)%TransOpFlag)
13835 0 : } break;
13836 0 : default:
13837 0 : break;
13838 : }
13839 12525 : switch (compressor.SuperheatRatingType) {
13840 12525 : case CompRatingType::Superheat: {
13841 12525 : HCompInRatedHP = HsatVaporforTevapneededMT + this->CpSatVapEvapMT * compressor.RatedSuperheat;
13842 12525 : TempInRatedHP = this->TEvapNeededMT + compressor.RatedSuperheat;
13843 12525 : } break;
13844 0 : case CompRatingType::ReturnGasTemperature: { // have rated compressor inlet temperature stored in "RatedSuperheat"
13845 0 : TempInRatedHP = compressor.RatedSuperheat;
13846 0 : HCompInRatedHP = this->refrig->getSupHeatEnthalpy(state, compressor.RatedSuperheat, PSuctionMT, RoutineName);
13847 0 : } break;
13848 0 : default:
13849 0 : break;
13850 : }
13851 :
13852 12525 : CaseEnthalpyChangeRatedMT = HCompInRatedHP - HCaseInRatedMT;
13853 12525 : DensityRatedHP = this->refrig->getSupHeatDensity(state, TempInRatedHP, PSuctionMT, RoutineName);
13854 : // Adjust capacity and mass flow to reflect the specific volume change due to superheating and
13855 : // the increase in capacity due to extra subcooling
13856 12525 : MassCorrectionMT = DensityActualMT / DensityRatedHP;
13857 12525 : CapacityCorrectionMT = MassCorrectionMT * TotalEnthalpyChangeActualMT / CaseEnthalpyChangeRatedMT;
13858 :
13859 12525 : if (GasCooler(this->GasCoolerNum(1)).TransOpFlag) { // System is operating in transcritical region
13860 6199 : compressor.Power = Curve::CurveValue(state, compressor.TransElecPowerCurvePtr, TsatforPsucMT, PGCOutlet);
13861 6199 : compressor.Capacity = CapacityCorrectionMT * Curve::CurveValue(state, compressor.TransCapacityCurvePtr, TsatforPsucMT, HGCOutlet);
13862 : } else { // System is operating in subcritical region
13863 6326 : compressor.Power = Curve::CurveValue(state, compressor.ElecPowerCurvePtr, TsatforPsucMT, TsatforPdisMT);
13864 6326 : compressor.Capacity = CapacityCorrectionMT * Curve::CurveValue(state, compressor.CapacityCurvePtr, TsatforPsucMT, TsatforPdisMT);
13865 : } // (GasCooler(SysNum)%TransOpFlag)
13866 : // Mass flow through HP compressors is HP compressor refrigerating capacity divided by MT load, LT load and LP compressor power
13867 12525 : compressor.MassFlow = TotalRefMassFlow * compressor.Capacity / (NeededCapacityMT + NeededCapacityLT + this->TotCompPowerLP);
13868 12525 : compressor.ElecConsumption = compressor.Power * localTimeStepSec;
13869 12525 : compressor.CoolingEnergy = compressor.Capacity * localTimeStepSec;
13870 12525 : compressor.LoadFactor = 1.0;
13871 : // calculate load factor for last compressor added
13872 : // assumes either cycling or part load eff = full load eff for last compressor
13873 12525 : if ((this->TotCompCapacityHP + compressor.Capacity) >= (NeededCapacityMT + NeededCapacityLT + this->TotCompPowerLP)) {
13874 10701 : LFLastComp = ((NeededCapacityMT + NeededCapacityLT + this->TotCompPowerLP) - this->TotCompCapacityHP) / compressor.Capacity;
13875 10701 : compressor.Power *= LFLastComp;
13876 10701 : compressor.MassFlow *= LFLastComp;
13877 10701 : compressor.Capacity *= LFLastComp;
13878 10701 : this->TotCompCapacityHP += compressor.Capacity;
13879 10701 : this->RefMassFlowCompsHP += compressor.MassFlow;
13880 10701 : this->TotCompPowerHP += compressor.Power;
13881 10701 : compressor.ElecConsumption = compressor.Power * localTimeStepSec;
13882 10701 : compressor.CoolingEnergy = compressor.Capacity * localTimeStepSec;
13883 10701 : compressor.LoadFactor = LFLastComp;
13884 10701 : break;
13885 : } else {
13886 1824 : this->TotCompCapacityHP += compressor.Capacity;
13887 1824 : this->RefMassFlowCompsHP += compressor.MassFlow;
13888 1824 : this->TotCompPowerHP += compressor.Power;
13889 : }
13890 :
13891 : } // NumCompressorsHP
13892 :
13893 10701 : this->HCompOutHP = this->HCompInHP + this->TotCompPowerHP / this->RefMassFlowCompsHP;
13894 10701 : this->RefMassFlowComps = this->RefMassFlowCompsLP + this->RefMassFlowCompsHP;
13895 10701 : this->TotCompCapacity = this->TotCompCapacityHP + this->TotCompCapacityLP;
13896 10701 : this->AverageCompressorCOP = (this->TotCompCapacityHP - this->TotCompPowerLP) / (this->TotCompPowerLP + this->TotCompPowerHP);
13897 10701 : this->TotCompElecConsump = (this->TotCompPowerLP + this->TotCompPowerHP) * localTimeStepSec;
13898 10701 : this->TotCompCoolingEnergy = (this->TotCompCapacityLP + this->TotCompCapacityHP) * localTimeStepSec;
13899 10701 : }
13900 :
13901 24888 : void RefrigSystemData::CalculateSubcoolers(EnergyPlusData &state)
13902 : {
13903 :
13904 : // SUBROUTINE INFORMATION:
13905 : // AUTHOR Therese Stovall, ORNL, Assisted by Hugh Henderson
13906 : // DATE WRITTEN Spring 2008
13907 : // MODIFIED Brian Fricke, ORNL, March 2012, added two-stage compression
13908 : // RE-ENGINEERED na
13909 :
13910 : // PURPOSE OF THIS SUBROUTINE:
13911 : // Find the subcooler energy exchange and refrigerant states for a particular detailed
13912 : // refrigeration system. Use the refrigerant property subroutines in FluidProperties.cc
13913 :
13914 : // METHODOLOGY EMPLOYED:
13915 : // Use refrigerant properties and heat exchanger correlations. NOTE: Assumes any Mech subcooler
13916 : // immediately follows condenser outlet (after pipe loss) and comes before any LSHX
13917 :
13918 : // REFERENCES:
13919 : // ASHRAE 1006 Section 2: Refrigeration Accessories
13920 :
13921 : static constexpr std::string_view RoutineName = "CalculateSubcoolers";
13922 24888 : Real64 TLiqInActualLocal = 0.0; // Liquid T in, after condenser, before any mechanical subcooler
13923 :
13924 24888 : auto &System = state.dataRefrigCase->System;
13925 24888 : auto &Condenser = state.dataRefrigCase->Condenser;
13926 24888 : auto &Subcooler = state.dataRefrigCase->Subcooler;
13927 :
13928 24888 : Real64 localTimeStep = (state.dataRefrigCase->UseSysTimeStep) ? state.dataHVACGlobal->TimeStepSys : state.dataGlobal->TimeStepZone;
13929 24888 : Real64 localTimeStepSec = localTimeStep * Constant::rSecsInHour;
13930 :
13931 : // HCaseIn has to be recalculated as the starting point for the subcoolers here because
13932 : // of the multiple number of iterations through this subroutine and because Tcondense is evolving.
13933 24888 : if (this->NumStages == 1) { // Single-stage compression system
13934 24888 : this->HSatLiqCond = this->refrig->getSatEnthalpy(state, this->TCondense, 0.0, RoutineName);
13935 24888 : this->CpSatLiqCond = this->refrig->getSatSpecificHeat(state, this->TCondense, 0.0, RoutineName);
13936 24888 : this->HCaseIn = this->HSatLiqCond - this->CpSatLiqCond * Condenser(this->CondenserNum(1)).RatedSubcool;
13937 :
13938 : // Two-stage compression with flash intercooler
13939 0 : } else if (this->NumStages == 2 && this->intercoolerType == IntercoolerType::Flash) {
13940 0 : this->HSatLiqCond = this->refrig->getSatEnthalpy(state, this->TCondense, 0.0, RoutineName);
13941 0 : this->CpSatLiqCond = this->refrig->getSatSpecificHeat(state, this->TCondense, 0.0, RoutineName);
13942 0 : this->HCaseIn = this->refrig->getSatEnthalpy(state, this->TIntercooler, 0.0, RoutineName);
13943 :
13944 : // Two-stage compression with shell-and-coil intercooler
13945 0 : } else if (this->NumStages == 2 && this->intercoolerType == IntercoolerType::ShellAndCoil) {
13946 0 : TLiqInActualLocal = this->TCondense - Condenser(this->CondenserNum(1)).RatedSubcool -
13947 0 : this->IntercoolerEffectiveness * (this->TCondense - Condenser(this->CondenserNum(1)).RatedSubcool - this->TIntercooler);
13948 0 : this->HSatLiqCond = this->refrig->getSatEnthalpy(state, this->TCondense, 0.0, RoutineName);
13949 0 : this->CpSatLiqCond = this->refrig->getSatSpecificHeat(state, this->TCondense, 0.0, RoutineName);
13950 0 : this->HCaseIn = this->HSatLiqCond - this->CpSatLiqCond * (this->TCondense - TLiqInActualLocal);
13951 : } // NumStages and IntercoolerType
13952 :
13953 74664 : for (int SubcoolerIndex = 1; SubcoolerIndex <= this->NumSubcoolers; ++SubcoolerIndex) {
13954 49776 : int SubcoolerID = this->SubcoolerNum(SubcoolerIndex);
13955 49776 : auto &cooler = Subcooler(SubcoolerID);
13956 : // set up local variables for convenience
13957 49776 : Real64 DelTLiqDes = cooler.LiqSuctDesignDelT;
13958 49776 : Real64 TVapInDes = cooler.LiqSuctDesignTvapIn;
13959 49776 : Real64 TLiqInDes = cooler.LiqSuctDesignTliqIn;
13960 49776 : Real64 ControlTLiqOut = cooler.MechControlTliqOut;
13961 49776 : Real64 CpLiquid = this->CpSatLiqCond;
13962 49776 : Real64 CpVapor = this->CpSatVapEvap;
13963 49776 : if (this->NumStages == 1) { // Single-stage compression system
13964 49776 : TLiqInActualLocal = this->TCondense - Condenser(this->CondenserNum(1)).RatedSubcool;
13965 :
13966 : // Two-stage compression with flash intercooler
13967 0 : } else if (this->NumStages == 2 && this->intercoolerType == IntercoolerType::Flash) {
13968 0 : TLiqInActualLocal = this->TIntercooler;
13969 :
13970 : // Two-stage compression with shell-and-coil intercooler
13971 0 : } else if (this->NumStages == 2 && this->intercoolerType == IntercoolerType::ShellAndCoil) {
13972 0 : TLiqInActualLocal =
13973 0 : this->TCondense - Condenser(this->CondenserNum(1)).RatedSubcool -
13974 0 : this->IntercoolerEffectiveness * (this->TCondense - Condenser(this->CondenserNum(1)).RatedSubcool - this->TIntercooler);
13975 : } // NumStages and IntercoolerType
13976 :
13977 49776 : switch (cooler.subcoolerType) {
13978 : // Mechanical subcoolers required to come first in order to take advantage of delT
13979 : // from lshx. taken care of because subcooler ID assigned in that order in input.
13980 24888 : case SubcoolerType::Mechanical: {
13981 24888 : Real64 mechSCLoad = this->RefMassFlowtoLoads * CpLiquid * (TLiqInActualLocal - ControlTLiqOut);
13982 24888 : this->HCaseIn -= CpLiquid * (TLiqInActualLocal - ControlTLiqOut);
13983 : // refrigeration benefit to System(sysnum)
13984 : // refrigeration load must be assigned properly according to input
13985 24888 : int SysProvideID = cooler.MechSourceSysID;
13986 24888 : System(SysProvideID).MechSCLoad(SubcoolerID) = mechSCLoad;
13987 24888 : cooler.MechSCTransLoad = mechSCLoad;
13988 24888 : cooler.MechSCTransEnergy = mechSCLoad * localTimeStepSec;
13989 : // Reset inlet temperature for any LSHX that follows this mech subcooler
13990 24888 : TLiqInActualLocal = ControlTLiqOut;
13991 24888 : this->TCompIn = this->TEvapNeeded + CaseSuperheat;
13992 24888 : } break;
13993 24888 : case SubcoolerType::LiquidSuction: {
13994 24888 : Real64 LSHXeffectiveness = DelTLiqDes / (TLiqInDes - TVapInDes);
13995 24888 : Real64 TVapInActual = this->TEvapNeeded + CaseSuperheat;
13996 24888 : Real64 DelTempActual = LSHXeffectiveness * (TLiqInActualLocal - TVapInActual);
13997 24888 : TLiqInActualLocal -= DelTempActual;
13998 24888 : Real64 SubcoolLoad = this->RefMassFlowtoLoads * CpLiquid * DelTempActual;
13999 24888 : Real64 SubcoolerSupHeat = SubcoolLoad / CpVapor / this->RefMassFlowComps;
14000 24888 : this->TCompIn = TVapInActual + SubcoolerSupHeat;
14001 24888 : this->HCaseIn -= SubcoolLoad / this->RefMassFlowtoLoads;
14002 24888 : this->LSHXTrans = SubcoolLoad;
14003 24888 : this->LSHXTransEnergy = SubcoolLoad * localTimeStepSec;
14004 24888 : } break;
14005 0 : default:
14006 0 : break;
14007 : }
14008 :
14009 49776 : this->TLiqInActual = TLiqInActualLocal;
14010 : }
14011 24888 : }
14012 :
14013 2 : void GetRefrigeratedRackIndex(EnergyPlusData &state,
14014 : std::string const &Name,
14015 : int &IndexPtr,
14016 : DataHeatBalance::RefrigSystemType const SysType,
14017 : bool &ErrorsFound,
14018 : std::string_view const ThisObjectType,
14019 : bool const SuppressWarning)
14020 : {
14021 :
14022 : // SUBROUTINE INFORMATION:
14023 : // AUTHOR Richard Raustad
14024 : // DATE WRITTEN June 2007
14025 : // MODIFIED Therese Stovall May 2008
14026 : // RE-ENGINEERED na
14027 : // PURPOSE OF THIS SUBROUTINE:
14028 : // This subroutine sets an index for a given refrigerated rack or refrigeration condenser
14029 : // -- issues error message if the rack or condenser is not found.
14030 :
14031 2 : auto &RefrigRack = state.dataRefrigCase->RefrigRack;
14032 2 : auto &Condenser = state.dataRefrigCase->Condenser;
14033 :
14034 2 : CheckRefrigerationInput(state);
14035 :
14036 2 : switch (SysType) {
14037 1 : case DataHeatBalance::RefrigSystemType::Rack: {
14038 1 : IndexPtr = Util::FindItemInList(Name, RefrigRack);
14039 1 : if (IndexPtr == 0) {
14040 0 : if (SuppressWarning) {
14041 : // No warning printed if only searching for the existence of a refrigerated rack
14042 : } else {
14043 0 : if (!ThisObjectType.empty()) {
14044 0 : ShowSevereError(state, fmt::format("{}, GetRefrigeratedRackIndex: Rack not found={}", ThisObjectType, Name));
14045 : } else {
14046 0 : if (!ThisObjectType.empty()) {
14047 0 : ShowSevereError(state, fmt::format("{}, GetRefrigeratedRackIndex: Rack not found={}", ThisObjectType, Name));
14048 : } else {
14049 0 : ShowSevereError(state, format("GetRefrigeratedRackIndex: Rack not found={}", Name));
14050 : }
14051 : }
14052 : }
14053 0 : ErrorsFound = true;
14054 : }
14055 1 : } break;
14056 1 : case DataHeatBalance::RefrigSystemType::Detailed: {
14057 1 : IndexPtr = Util::FindItemInList(Name, Condenser);
14058 1 : if (IndexPtr == 0) {
14059 0 : if (SuppressWarning) {
14060 : // No warning printed if only searching for the existence of a refrigeration Condenser
14061 : } else {
14062 0 : if (!ThisObjectType.empty()) {
14063 0 : ShowSevereError(state, fmt::format("{}, GetRefrigeratedRackIndex: Condenser not found={}", ThisObjectType, Name));
14064 : } else {
14065 0 : ShowSevereError(state, format("GetRefrigeratedRackIndex: Condenser not found={}", Name));
14066 : }
14067 : }
14068 : }
14069 1 : ErrorsFound = true;
14070 1 : } break;
14071 0 : default:
14072 0 : break;
14073 : }
14074 2 : }
14075 :
14076 801 : void ReportRefrigerationComponents(EnergyPlusData &state)
14077 : {
14078 :
14079 : // SUBROUTINE INFORMATION:
14080 : // AUTHOR Richard Raustad, FSEC
14081 : // DATE WRITTEN October 2004
14082 : // MODIFIED Shirey, FSEC Dec 2004; Lawrie, Mar 2008 - Node names, not numbers.
14083 : // MODIFIED Stovall - 2008 to 2010, new refrig variables and move orphan reporting to input.
14084 : // MODIFIED Fricke, ORNL, Fall 2011, added transcritical CO2 refrigeration system variables
14085 : // RE-ENGINEERED na
14086 :
14087 : // PURPOSE OF THIS SUBROUTINE:
14088 : // To report information from the input deck for refrigerated cases and racks to the eio and err file.
14089 :
14090 801 : std::string ChrOut;
14091 801 : std::string ChrOut2;
14092 :
14093 801 : auto &RefrigCase = state.dataRefrigCase->RefrigCase;
14094 801 : auto &RefrigRack = state.dataRefrigCase->RefrigRack;
14095 801 : auto &System = state.dataRefrigCase->System;
14096 801 : auto &TransSystem = state.dataRefrigCase->TransSystem;
14097 801 : auto &Condenser = state.dataRefrigCase->Condenser;
14098 801 : auto &Compressor = state.dataRefrigCase->Compressor;
14099 801 : auto &GasCooler = state.dataRefrigCase->GasCooler;
14100 801 : auto &Subcooler = state.dataRefrigCase->Subcooler;
14101 801 : auto &Secondary = state.dataRefrigCase->Secondary;
14102 801 : auto &WalkIn = state.dataRefrigCase->WalkIn;
14103 801 : auto &WarehouseCoil = state.dataRefrigCase->WarehouseCoil;
14104 801 : auto &AirChillerSet = state.dataRefrigCase->AirChillerSet;
14105 :
14106 : static constexpr std::string_view Format_104(
14107 : "! <Refrigeration Compressor Rack>,Compressor Rack Name, # Refrigerated Cases Connected,# WalkIn Coolers "
14108 : "Connected, Heat Rejection Location, Condenser Type, COP");
14109 : static constexpr std::string_view Format_105(
14110 : "! <Refrigeration Case>,Refrigeration Case Number, Refrigeration Case Name,Zone Name,Zone Node #,Zone "
14111 : "Node Name,Capacity (W/m),LHR,Temperature (C),Length (m),Fan (W/m),Installed Lighting (W/m),Anti-Sweat "
14112 : "(W/m),Defrost (W/m)");
14113 : static constexpr std::string_view Format_108("! <Refrigeration Compressor>,Compressor Number,Compressor Name,Nominal Capacity (W)");
14114 : static constexpr std::string_view Format_109("! <#Refrigeration Compressor Racks>,Number of Refrigeration Compressor Racks");
14115 : static constexpr std::string_view Format_117("! <#Detailed Refrigeration Systems>,Number of Detailed Refrigeration Systems");
14116 : static constexpr std::string_view Format_118(
14117 : "! <Detailed Refrigeration System>,Refrigeration System Name,Refrigerant Used, # Refrigerated Cases "
14118 : "Connected, # WalkInCoolers Connected, #Air Chillers Connected, # Secondary Loops Served, # Cascade Condensers "
14119 : "Served, # Mechanical Subcoolers Served, # Compressors Connected, # Compression Stages, Intercooler Type, "
14120 : "Intercooler Effectiveness, # Subcoolers Connected, Minimum Condensing Temperature (C)");
14121 : static constexpr std::string_view Format_119(
14122 : "! <Refrigeration Walk In Cooler>, Walk In Number, Walk In Name,Capacity (W),Temperature (C),Coil Fan "
14123 : "(W), Circulating Fan (W), Lighting (W),Heaters (W),Defrost (W), # Zones");
14124 : static constexpr std::string_view Format_120(
14125 : "! <#Detailed Transcritical Refrigeration Systems>,Number of Detailed Transcritical Refrigeration Systems");
14126 : static constexpr std::string_view Format_121(
14127 : "! <Detailed Transcritical Refrigeration System>,Transcritical Refrigeration System Name,Refrigerant Used, # "
14128 : "Medium Temperature Refrigerated Cases Connected, # Low Temperature Refrigerated Cases Connected, # Medium "
14129 : "Temperature WalkInCoolers Connected, # Low Temperature WalkInCoolers Connected, # High Pressure Compressors "
14130 : "Connected, # Low Pressure Compressors Connected, Minimum Condensing Temperature (C)");
14131 : static constexpr std::string_view Format_123("! <Secondary Load>, Secondary System Served Name, Secondary Number");
14132 : static constexpr std::string_view Format_126(
14133 : "! <Refrigeration Mechanical Subcooler>, Subcooler Number, Subcooler Name, Name of System Providing "
14134 : "Cooling, Design Outlet Temperature (C)");
14135 : static constexpr std::string_view Format_127("! <Refrigeration Liquid Suction Subcooler>, Subcooler Number, Subcooler Name, Design Subcooling "
14136 : "(DeltaC),Design liquid inlet temperature (C), Design vapor inlet temperature (C)");
14137 : static constexpr std::string_view Format_128("! <Cascade Load>, System Name Connected, Condenser Number, Condenser Name");
14138 : static constexpr std::string_view Format_129(
14139 : "! <Refrigeration Condenser:Air-Cooled>,Condenser Number,Condenser Name,Rated Condensing Temperature "
14140 : "(C),Rated Capacity (W), Rated Fan Power (W)");
14141 : static constexpr std::string_view Format_130(
14142 : "! <Refrigeration Condenser:Water-Cooled>,Condenser Number,Condenser Name,Rated Condensing Temperature "
14143 : "(C),Rated Capacity (W), Rated Water Inlet Temperature (C), Rated Water Flow Rate (m3/s)");
14144 : static constexpr std::string_view Format_131(
14145 : "! <Refrigeration Condenser:Evaporative-Cooled>,Condenser Number,Condenser Name,Rated Capacity (W), Rated Fan Power (W)");
14146 : static constexpr std::string_view Format_132(
14147 : "! <Refrigeration Condenser:Cascade>, Condenser Number, Condenser Name, Condensing Temperature Control "
14148 : "Type, Rated Condensing Temperature (C), Capacity (W), Approach Temperature Difference (DeltaC)");
14149 : static constexpr std::string_view Format_133(
14150 : "! <Secondary Refrigeration System: Fluid Always Liquid>, Secondary Number, Secondary Name, # Refrigerated "
14151 : "Cases Connected, # WalkIn Coolers Connected, Fluid Name, Capacity (W),Evap Temperature in Secondary "
14152 : "Evaporator (C), Approach Temperature Difference (DeltaC), Temperature Range (DeltaC), TotalPumpPower (W)");
14153 : static constexpr std::string_view Format_134(
14154 : "! <Walk-In Surfaces Facing Zone>, ZoneName, Wall/Ceiling Area (m2), UValue (W/m2-C), AreaStockDoors "
14155 : "(m2), HeightStockDoors, UValueStockDoors (W/m2-C), AreaGlassDoors (m2), HeightGlassDoors (m), "
14156 : "UValueGlassDoors (W/m2-C)");
14157 : static constexpr std::string_view Format_141("! <Mechanical Subcooler Load>, Subcooler Number, Subcooler Name");
14158 : static constexpr std::string_view Format_142("! <#Secondary Refrigeration Systems>,Number of Secondary Refrigeration Systems");
14159 : static constexpr std::string_view Format_146(
14160 : "! <Secondary Refrigeration System: Liquid Overfeed>, Secondary Number, Secondary Name, # Refrigerated Cases "
14161 : "Connected, # WalkIn Coolers Connected, #Air Coils Connected Fluid Name, Capacity (W),Evap Temperature in "
14162 : "Secondary Evaporator (C), Approach Temperature Difference (DeltaC), Circulating Rate, TotalPumpPower (W)");
14163 : static constexpr std::string_view Format_148("! <#ZoneHVAC/Refrigeration Air Chiller Sets>,Number of ZoneHVAC/Refrigeration Air Chiller Sets");
14164 : static constexpr std::string_view Format_149(
14165 : "! <ZoneHVAC/Refrigeration Air Chiller Set>,Chiller Set Name, # Air Chillers Connected, Zone Location");
14166 : static constexpr std::string_view Format_151(
14167 : "! <Refrigeration Air Chiller>,Refrigeration Chiller Number, Refrigeration Chiller Name,Zone Name,Zone "
14168 : "Node #,Zone Node Name,Sensible Capacity (W/C),Sensible Capacity (W),Evaporating Temperature (C),DT1 (C),Fan "
14169 : "Power (W),Heater (W),Defrost (W), Air Flow Rate (m3/s)");
14170 : static constexpr std::string_view Format_152("! <Air Chiller Load>, Air Chiller Name, Air Chiller Number, Zone Name,");
14171 : static constexpr std::string_view Format_160(
14172 : "! <Refrigeration GasCooler:Air-Cooled>,Gas Cooler Number, Gas Cooler Name, Rated Outlet Pressure "
14173 : "(Pa),Rated Outlet Temperature (C), Rated Approach Temperature (C), Rated Capacity (W), Rated Fan Power (W)");
14174 :
14175 : // write all headers applicable to this simulation
14176 801 : if (state.dataRefrigCase->NumRefrigeratedRacks > 0) {
14177 31 : print(state.files.eio, "{}\n", Format_109); // Intro to refrigeration case racks
14178 31 : print(state.files.eio, "{}\n", Format_104); // Refrigeration Rack header
14179 : } //(NumRefrigeratedRacks > 0)
14180 801 : if (state.dataRefrigCase->NumRefrigSystems > 0) {
14181 15 : print(state.files.eio, "{}\n", Format_117); // Intro to detailed systems
14182 15 : print(state.files.eio, "{}\n", Format_118); // Detailed system header
14183 15 : print(state.files.eio, "{}\n", Format_108); // Compressor header (Always have compressor if have detailed system)
14184 : } //(NumRefrigSystems > 0)
14185 801 : if (state.dataRefrigCase->NumSimulationSecondarySystems > 0) {
14186 1 : print(state.files.eio, "{}\n", Format_142); // Intro to Secondary systems
14187 1 : int CountSecPhase = 0;
14188 1 : int CountSecBrine = 0;
14189 3 : for (int SecondaryID = 1; SecondaryID <= state.dataRefrigCase->NumSimulationSecondarySystems; ++SecondaryID) {
14190 2 : if ((Secondary(SecondaryID).FluidType == SecFluidType::AlwaysLiquid) && (CountSecBrine == 0)) {
14191 1 : print(state.files.eio, "{}\n", Format_133); // Secondary system header for brine type systems
14192 1 : ++CountSecBrine;
14193 : }
14194 2 : if ((Secondary(SecondaryID).FluidType == SecFluidType::PhaseChange) && (CountSecPhase == 0)) {
14195 1 : print(state.files.eio, "{}\n", Format_146); // Secondary system header for liquid overfeed/phase change systems
14196 1 : ++CountSecPhase;
14197 : }
14198 : }
14199 1 : print(state.files.eio, "{}\n", Format_123); // Secondary system load header
14200 : } //(NumSimulationSecondarySystems > 0)
14201 801 : if (state.dataRefrigCase->NumRefrigChillerSets > 0) {
14202 1 : print(state.files.eio, "{}\n", Format_148); // Intro to Chiller set
14203 1 : print(state.files.eio, "{}\n", Format_149); // Chiller set header
14204 1 : print(state.files.eio, "{}\n", Format_151); // Intro to Air Chiller
14205 1 : print(state.files.eio, "{}\n", Format_152); // Air chiller header
14206 : } //(NumRefrigSystems > 0)
14207 801 : if (state.dataRefrigCase->NumSimulationCases > 0) {
14208 37 : print(state.files.eio, "{}\n", Format_105); // Case header
14209 : } //(NumSimulationCases > 0)
14210 801 : if (state.dataRefrigCase->NumSimulationWalkIns > 0) {
14211 14 : print(state.files.eio, "{}\n", Format_119); // Walk-in header
14212 14 : print(state.files.eio, "{}\n", Format_134); // Walk-in zone-specific header
14213 : } //(NumSimulationWalkIns > 0)
14214 801 : if (state.dataRefrigCase->NumSimulationCondAir > 0) {
14215 13 : print(state.files.eio, "{}\n", Format_129); // Condenser, Air-Cooled header
14216 : } //(NumSimulationCondAir > 0)
14217 801 : if (state.dataRefrigCase->NumSimulationCondEvap > 0) {
14218 2 : print(state.files.eio, "{}\n", Format_131); // Condenser, Evaporative-Cooled header
14219 : } //(NumSimulationCondEvap > 0)
14220 801 : if (state.dataRefrigCase->NumSimulationCondWater > 0) {
14221 1 : print(state.files.eio, "{}\n", Format_130); // Condenser, Water-Cooled header
14222 : } //(NumSimulationCondWater > 0)
14223 801 : if (state.dataRefrigCase->NumSimulationCascadeCondensers > 0) {
14224 1 : print(state.files.eio, "{}\n", Format_132); // Condenser, Cascade header
14225 1 : print(state.files.eio, "{}\n", Format_128); // Cascade Load header
14226 : } //(NumSimulationCascadeCondensers > 0)
14227 801 : if (state.dataRefrigCase->NumSimulationMechSubcoolers > 0) {
14228 1 : print(state.files.eio, "{}\n", Format_141); // Mech subcooler loads served header
14229 1 : print(state.files.eio, "{}\n", Format_126); // Mechanical Subcooler header
14230 : } //(NumSimulationMechSubcoolers > 0)
14231 801 : if ((state.dataRefrigCase->NumSimulationSubcoolers - state.dataRefrigCase->NumSimulationMechSubcoolers) > 0) {
14232 1 : print(state.files.eio, "{}\n", Format_127); // LSHX Subcooler header
14233 : } //((NumSimulationSubcoolers - NumSimulationMechSubcoolers) > 0)
14234 :
14235 801 : if (state.dataRefrigCase->NumTransRefrigSystems > 0) {
14236 1 : print(state.files.eio, "{}\n", Format_120); // Intro to detailed transcritical refrigeration system
14237 1 : print(state.files.eio, "{}\n", Format_121); // Detailed system header
14238 1 : if (state.dataRefrigCase->NumSimulationCases > 0) {
14239 1 : print(state.files.eio, "{}\n", Format_105); // Case header
14240 : } //(NumSimulationCases > 0)
14241 1 : if (state.dataRefrigCase->NumSimulationWalkIns > 0) {
14242 1 : print(state.files.eio, "{}\n", Format_119); // Walk-in header
14243 1 : print(state.files.eio, "{}\n", Format_134); // Walk-in zone-specific header
14244 : } //(NumSimulationWalkIns > 0)
14245 1 : print(state.files.eio, "{}\n", Format_108); // Compressor header (Always have compressor if have detailed system)
14246 1 : if (state.dataRefrigCase->NumSimulationGasCooler > 0) {
14247 1 : print(state.files.eio, "{}\n", Format_160); // Gas Cooler, Air-Cooled header
14248 : } //(NumSimulationGasCooler > 0)
14249 : } //(NumTransRefrigSystems > 0)
14250 :
14251 801 : if (state.dataRefrigCase->NumRefrigeratedRacks > 0) {
14252 31 : print(state.files.eio, "#Refrigeration Compressor Racks, {}\n", state.dataRefrigCase->NumRefrigeratedRacks);
14253 92 : for (int RackNum = 1; RackNum <= state.dataRefrigCase->NumRefrigeratedRacks; ++RackNum) {
14254 61 : if (RefrigRack(RackNum).HeatRejectionLocation == HeatRejLocation::Outdoors) {
14255 34 : ChrOut = "Outdoors";
14256 : } else {
14257 27 : ChrOut = "Zone";
14258 : }
14259 61 : switch (RefrigRack(RackNum).CondenserType) {
14260 58 : case DataHeatBalance::RefrigCondenserType::Air: {
14261 58 : ChrOut2 = "Air-Cooled";
14262 58 : } break;
14263 2 : case DataHeatBalance::RefrigCondenserType::Evap: {
14264 2 : ChrOut2 = "Evap-Cooled";
14265 2 : } break;
14266 1 : case DataHeatBalance::RefrigCondenserType::Water: {
14267 1 : ChrOut2 = "Water-Cooled";
14268 1 : } break;
14269 0 : default:
14270 0 : break;
14271 : }
14272 61 : print(state.files.eio,
14273 : " Refrigeration Compressor Rack,{},{},{},{},{},{:.3R}\n",
14274 61 : RefrigRack(RackNum).Name,
14275 61 : RefrigRack(RackNum).NumCases,
14276 61 : RefrigRack(RackNum).NumWalkIns,
14277 : ChrOut,
14278 : ChrOut2,
14279 61 : RefrigRack(RackNum).RatedCOP);
14280 153 : for (int CaseNum = 1; CaseNum <= RefrigRack(RackNum).NumCases; ++CaseNum) {
14281 92 : int CaseID = RefrigRack(RackNum).CaseNum(CaseNum);
14282 92 : if (RefrigCase(CaseID).ZoneNodeNum > 0) {
14283 92 : print(state.files.eio,
14284 : " Refrigeration Case,{},{},{},{},{},{:.1R},{:.2R},{:.1R},{:.1R},{:.1R},{:.1R},{:.1R},{:.1R}\n",
14285 : CaseID,
14286 92 : RefrigCase(CaseID).Name,
14287 92 : RefrigCase(CaseID).ZoneName,
14288 92 : RefrigCase(CaseID).ZoneNodeNum,
14289 92 : state.dataLoopNodes->NodeID(RefrigCase(CaseID).ZoneNodeNum),
14290 92 : RefrigCase(CaseID).RateTotCapPerLength,
14291 92 : RefrigCase(CaseID).RatedLHR,
14292 92 : RefrigCase(CaseID).Temperature,
14293 92 : RefrigCase(CaseID).Length,
14294 92 : RefrigCase(CaseID).OperatingFanPower,
14295 92 : RefrigCase(CaseID).LightingPower,
14296 92 : RefrigCase(CaseID).AntiSweatPower,
14297 92 : RefrigCase(CaseID).DefrostPower); // Installed lighting power, may not be rated power
14298 : }
14299 : } // numcases
14300 :
14301 61 : for (int WalkInNum = 1; WalkInNum <= RefrigRack(RackNum).NumWalkIns; ++WalkInNum) {
14302 0 : int WalkInID = RefrigRack(RackNum).WalkInNum(WalkInNum);
14303 0 : print(state.files.eio,
14304 : " Refrigeration Walk In Cooler, {},{},{:.1R},{:.1R},{:.1R},{:.1R},{:.1R},{:.1R},{:.1R},{:.1R},{}\n",
14305 : WalkInID,
14306 0 : WalkIn(WalkInID).Name,
14307 0 : WalkIn(WalkInID).DesignRatedCap,
14308 0 : WalkIn(WalkInID).Temperature,
14309 0 : WalkIn(WalkInID).CoilFanPower,
14310 0 : WalkIn(WalkInID).CircFanPower,
14311 0 : WalkIn(WalkInID).ElecFanPower,
14312 0 : WalkIn(WalkInID).DesignLighting,
14313 0 : WalkIn(WalkInID).HeaterPower,
14314 0 : WalkIn(WalkInID).DefrostCapacity,
14315 0 : WalkIn(WalkInID).NumZones);
14316 0 : for (int ZoneID = 1; ZoneID <= WalkIn(WalkInID).NumZones; ++ZoneID) {
14317 0 : print(state.files.eio,
14318 : " Walk-In Surfaces Facing Zone, {},{:.1R},{:.4R},{:.2R},{:.2R},{:.4R},{:.2R},{:.2R},{:.4R}\n",
14319 0 : WalkIn(WalkInID).ZoneName(ZoneID),
14320 0 : WalkIn(WalkInID).SurfaceArea(ZoneID),
14321 0 : WalkIn(WalkInID).UValue(ZoneID),
14322 0 : WalkIn(WalkInID).AreaStockDr(ZoneID),
14323 0 : WalkIn(WalkInID).HeightStockDr(ZoneID),
14324 0 : WalkIn(WalkInID).UValueStockDr(ZoneID),
14325 0 : WalkIn(WalkInID).AreaGlassDr(ZoneID),
14326 0 : WalkIn(WalkInID).HeightGlassDr(ZoneID),
14327 0 : WalkIn(WalkInID).UValueGlassDr(ZoneID));
14328 : } // zones for walk ins on rack
14329 : } // walk ins on rack
14330 :
14331 61 : for (int CoilNum = 1; CoilNum <= RefrigRack(RackNum).NumCoils; ++CoilNum) {
14332 0 : int CoilID = RefrigRack(RackNum).CoilNum(CoilNum);
14333 0 : print(state.files.eio, " Air Chiller Load,{},{},{}\n", WarehouseCoil(CoilID).Name, CoilID, WarehouseCoil(CoilID).ZoneName);
14334 : } // numairchillers
14335 : } // numracks
14336 : } //(NumRefrigeratedRacks > 0)
14337 :
14338 801 : if (state.dataRefrigCase->NumRefrigSystems > 0) {
14339 15 : print(state.files.eio, "#Detailed Refrigeration Systems,{}\n", state.dataRefrigCase->NumRefrigSystems);
14340 56 : for (int SystemNum = 1; SystemNum <= state.dataRefrigCase->NumRefrigSystems; ++SystemNum) {
14341 41 : print(state.files.eio,
14342 : " Detailed Refrigeration System,{},{},{},{},{},{},{},{},{},{},{},{:.2R},{},{:.1R}\n",
14343 41 : System(SystemNum).Name,
14344 41 : System(SystemNum).RefrigerantName,
14345 41 : System(SystemNum).NumCases,
14346 41 : System(SystemNum).NumWalkIns,
14347 41 : System(SystemNum).NumCoils,
14348 41 : System(SystemNum).NumSecondarys,
14349 41 : System(SystemNum).NumCascadeLoads,
14350 41 : System(SystemNum).NumMechSCServed,
14351 41 : System(SystemNum).NumCompressors + System(SystemNum).NumHiStageCompressors,
14352 41 : System(SystemNum).NumStages,
14353 41 : System(SystemNum).intercoolerType,
14354 41 : System(SystemNum).IntercoolerEffectiveness,
14355 41 : System(SystemNum).NumSubcoolers,
14356 41 : System(SystemNum).TCondenseMin);
14357 :
14358 125 : for (int CaseNum = 1; CaseNum <= System(SystemNum).NumCases; ++CaseNum) {
14359 84 : int CaseID = System(SystemNum).CaseNum(CaseNum);
14360 84 : if (RefrigCase(CaseID).ZoneNodeNum > 0) {
14361 84 : print(state.files.eio,
14362 : " Refrigeration Case,{},{},{},{},{},{:.1R},{:.2R},{:.1R},{:.1R},{:.1R},{:.1R},{:.1R},{:.1R}\n",
14363 : CaseID,
14364 84 : RefrigCase(CaseID).Name,
14365 84 : RefrigCase(CaseID).ZoneName,
14366 84 : RefrigCase(CaseID).ZoneNodeNum,
14367 84 : state.dataLoopNodes->NodeID(RefrigCase(CaseID).ZoneNodeNum),
14368 84 : RefrigCase(CaseID).RateTotCapPerLength,
14369 84 : RefrigCase(CaseID).RatedLHR,
14370 84 : RefrigCase(CaseID).Temperature,
14371 84 : RefrigCase(CaseID).Length,
14372 84 : RefrigCase(CaseID).OperatingFanPower,
14373 84 : RefrigCase(CaseID).LightingPower,
14374 84 : RefrigCase(CaseID).AntiSweatPower,
14375 84 : RefrigCase(CaseID).DefrostPower);
14376 : }
14377 : } // NumCases on system
14378 56 : for (int WalkInNum = 1; WalkInNum <= System(SystemNum).NumWalkIns; ++WalkInNum) {
14379 15 : int WalkInID = System(SystemNum).WalkInNum(WalkInNum);
14380 15 : print(state.files.eio,
14381 : " Refrigeration Walk In Cooler,{},{},{:.1R},{:.1R},{:.1R},{:.1R},{:.1R},{:.1R},{:.1R},{}\n",
14382 : WalkInID,
14383 15 : WalkIn(WalkInID).Name,
14384 15 : WalkIn(WalkInID).DesignRatedCap,
14385 15 : WalkIn(WalkInID).Temperature,
14386 15 : WalkIn(WalkInID).CoilFanPower,
14387 15 : WalkIn(WalkInID).CircFanPower,
14388 15 : WalkIn(WalkInID).DesignLighting,
14389 15 : WalkIn(WalkInID).HeaterPower,
14390 15 : WalkIn(WalkInID).DefrostCapacity,
14391 15 : WalkIn(WalkInID).NumZones);
14392 30 : for (int ZoneID = 1; ZoneID <= WalkIn(WalkInID).NumZones; ++ZoneID) {
14393 15 : print(state.files.eio,
14394 : " Walk-In Surfaces Facing Zone, {},{:.1R},{:.4R},{:.2R},{:.2R},{:.4R},{:.2R},{:.2R},{:.4R}\n",
14395 15 : WalkIn(WalkInID).ZoneName(ZoneID),
14396 15 : WalkIn(WalkInID).SurfaceArea(ZoneID),
14397 15 : WalkIn(WalkInID).UValue(ZoneID),
14398 15 : WalkIn(WalkInID).AreaStockDr(ZoneID),
14399 15 : WalkIn(WalkInID).HeightStockDr(ZoneID),
14400 15 : WalkIn(WalkInID).UValueStockDr(ZoneID),
14401 15 : WalkIn(WalkInID).AreaGlassDr(ZoneID),
14402 15 : WalkIn(WalkInID).HeightGlassDr(ZoneID),
14403 15 : WalkIn(WalkInID).UValueGlassDr(ZoneID));
14404 : } // Num zones for each walk in on system
14405 : } // NumWalkIns on system
14406 :
14407 124 : for (int CoilNum = 1; CoilNum <= System(SystemNum).NumCoils; ++CoilNum) {
14408 83 : int CoilID = System(SystemNum).CoilNum(CoilNum);
14409 83 : print(state.files.eio, " Air Chiller Load,{},{},{}\n", WarehouseCoil(CoilID).Name, CoilID, WarehouseCoil(CoilID).ZoneName);
14410 : } // numairchillers
14411 :
14412 42 : for (int CascadeLoadNum = 1; CascadeLoadNum <= System(SystemNum).NumCascadeLoads; ++CascadeLoadNum) {
14413 1 : int CascadeLoadID = System(SystemNum).CascadeLoadNum(CascadeLoadNum);
14414 1 : print(state.files.eio,
14415 : " Cascade Load,{},{},{}\n",
14416 1 : System(Condenser(CascadeLoadID).CascadeSysID).Name,
14417 : CascadeLoadID,
14418 1 : Condenser(CascadeLoadID).Name);
14419 : } // cascade load on detailed system
14420 :
14421 43 : for (int SecondaryNum = 1; SecondaryNum <= System(SystemNum).NumSecondarys; ++SecondaryNum) {
14422 2 : int SecondaryID = System(SystemNum).SecondaryNum(SecondaryNum);
14423 2 : print(state.files.eio, " Secondary Load,{},{}\n", Secondary(SecondaryID).Name, SecondaryID);
14424 : } // secondary load on detailed system
14425 :
14426 45 : for (int SubcoolerNum = 1; SubcoolerNum <= state.dataRefrigCase->NumSimulationSubcoolers; ++SubcoolerNum) {
14427 4 : if (Subcooler(SubcoolerNum).MechSourceSysID != SystemNum) {
14428 3 : continue;
14429 : }
14430 1 : print(state.files.eio, " Mechanical Subcooler Load, {},{}\n", SubcoolerNum, Subcooler(SubcoolerNum).Name);
14431 : } // Num sim subcoolers, looking only for NumSMech Subcoolers served by this system
14432 :
14433 41 : if (System(SystemNum).NumStages == 1) { // Single-stage compression system
14434 201 : for (int CompressorNum = 1; CompressorNum <= System(SystemNum).NumCompressors; ++CompressorNum) {
14435 162 : int CompID = System(SystemNum).CompressorNum(CompressorNum);
14436 162 : print(state.files.eio, " Refrigeration Compressor,{},{},{:.0R}\n", CompID, Compressor(CompID).Name, Compressor(CompID).NomCap);
14437 : } // NumCompressors
14438 2 : } else if (System(SystemNum).NumStages == 2) { // Two-stage compression system
14439 : // Low-stage compressors
14440 8 : for (int CompressorNum = 1; CompressorNum <= System(SystemNum).NumCompressors; ++CompressorNum) {
14441 6 : int CompID = System(SystemNum).CompressorNum(CompressorNum);
14442 6 : print(state.files.eio,
14443 : " Refrigeration Low-Stage Compressor,{},{},{:.0R}\n",
14444 : CompID,
14445 6 : Compressor(CompID).Name,
14446 6 : Compressor(CompID).NomCap);
14447 : } // NumCompressors
14448 : // High-stage compressors
14449 10 : for (int CompressorNum = 1; CompressorNum <= System(SystemNum).NumHiStageCompressors; ++CompressorNum) {
14450 8 : int CompID = System(SystemNum).HiStageCompressorNum(CompressorNum);
14451 8 : print(state.files.eio,
14452 : " Refrigeration High-Stage Compressor,{},{},{:.0R}\n",
14453 : CompID,
14454 8 : Compressor(CompID).Name,
14455 8 : Compressor(CompID).NomCap);
14456 : } // NumHiStageCompressors
14457 : } // NumStages
14458 :
14459 41 : int CondID = System(SystemNum).CondenserNum(1);
14460 41 : switch (Condenser(CondID).CondenserType) {
14461 35 : case DataHeatBalance::RefrigCondenserType::Air: {
14462 35 : print(state.files.eio,
14463 : " Refrigeration Condenser:Air-Cooled,{},{},{:.1R},{:.1R},{:.1R}\n",
14464 : CondID,
14465 35 : Condenser(CondID).Name,
14466 35 : Condenser(CondID).RatedTCondense,
14467 35 : Condenser(CondID).RatedCapacity,
14468 35 : Condenser(CondID).RatedFanPower);
14469 35 : } break;
14470 4 : case DataHeatBalance::RefrigCondenserType::Evap: {
14471 4 : print(state.files.eio,
14472 : " Refrigeration Condenser:Evaporative-Cooled,{},{},{:.1R},{:.1R}\n",
14473 : CondID,
14474 4 : Condenser(CondID).Name,
14475 4 : Condenser(CondID).RatedCapacity,
14476 4 : Condenser(CondID).RatedFanPower);
14477 4 : } break;
14478 1 : case DataHeatBalance::RefrigCondenserType::Water: {
14479 1 : print(state.files.eio,
14480 : " Refrigeration Condenser:Water-Cooled,{},{},{:.1R},{:.1R},{:.1R},{:.1R}\n",
14481 : CondID,
14482 1 : Condenser(CondID).Name,
14483 1 : Condenser(CondID).RatedTCondense,
14484 1 : Condenser(CondID).RatedCapacity,
14485 1 : Condenser(CondID).InletTemp,
14486 1 : Condenser(CondID).DesVolFlowRate);
14487 1 : } break;
14488 1 : case DataHeatBalance::RefrigCondenserType::Cascade: {
14489 :
14490 1 : switch (Condenser(CondID).CascadeTempControl) {
14491 1 : case CascadeCndsrTempCtrlType::TempSet: {
14492 1 : ChrOut = "Fixed";
14493 1 : } break;
14494 0 : case CascadeCndsrTempCtrlType::TempFloat: {
14495 0 : ChrOut = "Floating";
14496 0 : } break;
14497 0 : default:
14498 0 : break;
14499 : } // cascade temperature control
14500 1 : print(state.files.eio,
14501 : " Refrigeration Condenser:Cascade,{},{},{},{:.1R},{:.1R},{:.1R}\n",
14502 : CondID,
14503 1 : Condenser(CondID).Name,
14504 : ChrOut,
14505 1 : Condenser(CondID).RatedTCondense,
14506 1 : Condenser(CondID).RatedCapacity,
14507 1 : Condenser(CondID).RatedApproachT);
14508 1 : } break;
14509 0 : default:
14510 0 : break;
14511 : } // condenser type
14512 :
14513 43 : for (int SubcoolerNum = 1; SubcoolerNum <= System(SystemNum).NumSubcoolers; ++SubcoolerNum) {
14514 2 : int SubcoolerID = System(SystemNum).SubcoolerNum(SubcoolerNum);
14515 2 : switch (Subcooler(SubcoolerID).subcoolerType) {
14516 1 : case SubcoolerType::LiquidSuction: {
14517 1 : print(state.files.eio,
14518 : " Refrigeration Liquid Suction Subcooler,{},{},{:.1R},{:.1R},{:.1R}\n",
14519 : SubcoolerID,
14520 1 : Subcooler(SubcoolerID).Name,
14521 1 : Subcooler(SubcoolerID).LiqSuctDesignDelT,
14522 1 : Subcooler(SubcoolerID).LiqSuctDesignTliqIn,
14523 1 : Subcooler(SubcoolerID).LiqSuctDesignTvapIn);
14524 1 : } break;
14525 1 : case SubcoolerType::Mechanical: {
14526 1 : print(state.files.eio,
14527 : " Refrigeration Mechanical Subcooler,{},{},{},{:.1R}\n",
14528 : SubcoolerID,
14529 1 : Subcooler(SubcoolerID).Name,
14530 1 : Subcooler(SubcoolerID).MechSourceSys,
14531 1 : Subcooler(SubcoolerID).MechControlTliqOut);
14532 1 : } break;
14533 0 : default:
14534 0 : break;
14535 : }
14536 : } // NumSubcoolers
14537 :
14538 : } // NumRefrigSystems
14539 : } //(NumRefrigSystems > 0)
14540 :
14541 801 : if (state.dataRefrigCase->NumTransRefrigSystems > 0) {
14542 1 : print(state.files.eio, "#Detailed Transcritical Refrigeration Systems,{}\n", state.dataRefrigCase->NumTransRefrigSystems);
14543 2 : for (int TransSystemNum = 1; TransSystemNum <= state.dataRefrigCase->NumTransRefrigSystems; ++TransSystemNum) {
14544 1 : print(state.files.eio,
14545 : " Detailed Transcritical Refrigeration System,{},{},{},{},{},{},{},{},{:.1R}\n",
14546 1 : TransSystem(TransSystemNum).Name,
14547 1 : TransSystem(TransSystemNum).RefrigerantName,
14548 1 : TransSystem(TransSystemNum).NumCasesMT,
14549 1 : TransSystem(TransSystemNum).NumCasesLT,
14550 1 : TransSystem(TransSystemNum).NumWalkInsMT,
14551 1 : TransSystem(TransSystemNum).NumWalkInsLT,
14552 1 : TransSystem(TransSystemNum).NumCompressorsHP,
14553 1 : TransSystem(TransSystemNum).NumCompressorsLP,
14554 1 : GasCooler(TransSystem(TransSystemNum).GasCoolerNum(1)).MinCondTemp);
14555 :
14556 4 : for (int CaseNum = 1; CaseNum <= TransSystem(TransSystemNum).NumCasesMT; ++CaseNum) {
14557 3 : int CaseID = TransSystem(TransSystemNum).CaseNumMT(CaseNum);
14558 3 : if (RefrigCase(CaseID).ZoneNodeNum > 0) {
14559 3 : print(state.files.eio,
14560 : " Medium Temperature Refrigeration Case,{},{},{},{},{},{:.1R},{:.2R},{:.1R},{:.1R},{:.1R},{:.1R},{:.1R},{:.1R}\n",
14561 : CaseID,
14562 3 : RefrigCase(CaseID).Name,
14563 3 : RefrigCase(CaseID).ZoneName,
14564 3 : RefrigCase(CaseID).ZoneNodeNum,
14565 3 : state.dataLoopNodes->NodeID(RefrigCase(CaseID).ZoneNodeNum),
14566 3 : RefrigCase(CaseID).RateTotCapPerLength,
14567 3 : RefrigCase(CaseID).RatedLHR,
14568 3 : RefrigCase(CaseID).Temperature,
14569 3 : RefrigCase(CaseID).Length,
14570 3 : RefrigCase(CaseID).OperatingFanPower,
14571 3 : RefrigCase(CaseID).LightingPower,
14572 3 : RefrigCase(CaseID).AntiSweatPower,
14573 3 : RefrigCase(CaseID).DefrostPower);
14574 : }
14575 : } // NumCasesMT on system
14576 5 : for (int CaseNum = 1; CaseNum <= TransSystem(TransSystemNum).NumCasesLT; ++CaseNum) {
14577 4 : int CaseID = TransSystem(TransSystemNum).CaseNumLT(CaseNum);
14578 4 : if (RefrigCase(CaseID).ZoneNodeNum > 0) {
14579 4 : print(state.files.eio,
14580 : " Low Temperature Refrigeration Case,{},{},{},{},{},{:.1R},{:.2R},{:.1R},{:.1R},{:.1R},{:.1R},{:.1R},{:.1R}\n",
14581 : CaseID,
14582 4 : RefrigCase(CaseID).Name,
14583 4 : RefrigCase(CaseID).ZoneName,
14584 4 : RefrigCase(CaseID).ZoneNodeNum,
14585 4 : state.dataLoopNodes->NodeID(RefrigCase(CaseID).ZoneNodeNum),
14586 4 : RefrigCase(CaseID).RateTotCapPerLength,
14587 4 : RefrigCase(CaseID).RatedLHR,
14588 4 : RefrigCase(CaseID).Temperature,
14589 4 : RefrigCase(CaseID).Length,
14590 4 : RefrigCase(CaseID).OperatingFanPower,
14591 4 : RefrigCase(CaseID).LightingPower,
14592 4 : RefrigCase(CaseID).AntiSweatPower,
14593 4 : RefrigCase(CaseID).DefrostPower);
14594 : }
14595 : } // NumCasesLT on system
14596 1 : for (int WalkInNum = 1; WalkInNum <= TransSystem(TransSystemNum).NumWalkInsMT; ++WalkInNum) {
14597 0 : int WalkInID = TransSystem(TransSystemNum).WalkInNumMT(WalkInNum);
14598 0 : print(state.files.eio,
14599 : " Medium Temperature Refrigeration Walk In Cooler,{},{},{:.1R},{:.1R},{:.1R},{:.1R},{:.1R},{:.1R},{}\n",
14600 : WalkInID,
14601 0 : WalkIn(WalkInID).Name,
14602 0 : WalkIn(WalkInID).DesignRatedCap,
14603 0 : WalkIn(WalkInID).Temperature,
14604 0 : WalkIn(WalkInID).CoilFanPower,
14605 0 : WalkIn(WalkInID).CircFanPower,
14606 0 : WalkIn(WalkInID).DesignLighting,
14607 0 : WalkIn(WalkInID).HeaterPower,
14608 0 : WalkIn(WalkInID).DefrostCapacity,
14609 0 : WalkIn(WalkInID).NumZones);
14610 0 : for (int ZoneID = 1; ZoneID <= WalkIn(WalkInID).NumZones; ++ZoneID) {
14611 0 : print(state.files.eio,
14612 : " Walk-In Surfaces Facing Zone,{},{:.1R},{:.4R},{:.2R},{:.2R},{:.4R},{:.2R},{:.2R},{:.4R}\n",
14613 0 : WalkIn(WalkInID).ZoneName(ZoneID),
14614 0 : WalkIn(WalkInID).SurfaceArea(ZoneID),
14615 0 : WalkIn(WalkInID).UValue(ZoneID),
14616 0 : WalkIn(WalkInID).AreaStockDr(ZoneID),
14617 0 : WalkIn(WalkInID).HeightStockDr(ZoneID),
14618 0 : WalkIn(WalkInID).UValueStockDr(ZoneID),
14619 0 : WalkIn(WalkInID).AreaGlassDr(ZoneID),
14620 0 : WalkIn(WalkInID).HeightGlassDr(ZoneID),
14621 0 : WalkIn(WalkInID).UValueGlassDr(ZoneID));
14622 : } // Num zones for each walk in on system
14623 : } // NumWalkInsMT on system
14624 2 : for (int WalkInNum = 1; WalkInNum <= TransSystem(TransSystemNum).NumWalkInsLT; ++WalkInNum) {
14625 1 : int WalkInID = TransSystem(TransSystemNum).WalkInNumLT(WalkInNum);
14626 1 : print(state.files.eio,
14627 : " Low Temperature Refrigeration Walk In Cooler,{},{},{:.1R},{:.1R},{:.1R},{:.1R},{:.1R},{:.1R},{:.1R},{}\n",
14628 : WalkInID,
14629 1 : WalkIn(WalkInID).Name,
14630 1 : WalkIn(WalkInID).DesignRatedCap,
14631 1 : WalkIn(WalkInID).Temperature,
14632 1 : WalkIn(WalkInID).CoilFanPower,
14633 1 : WalkIn(WalkInID).CircFanPower,
14634 1 : WalkIn(WalkInID).DesignLighting,
14635 1 : WalkIn(WalkInID).HeaterPower,
14636 1 : WalkIn(WalkInID).DefrostCapacity,
14637 1 : WalkIn(WalkInID).NumZones);
14638 2 : for (int ZoneID = 1; ZoneID <= WalkIn(WalkInID).NumZones; ++ZoneID) {
14639 1 : print(state.files.eio,
14640 : " Walk-In Surfaces Facing Zone,{},{:.1R},{:.4R},{:.2R},{:.2R},{:.4R},{:.2R},{:.2R},{:.4R}\n",
14641 1 : WalkIn(WalkInID).ZoneName(ZoneID),
14642 1 : WalkIn(WalkInID).SurfaceArea(ZoneID),
14643 1 : WalkIn(WalkInID).UValue(ZoneID),
14644 1 : WalkIn(WalkInID).AreaStockDr(ZoneID),
14645 1 : WalkIn(WalkInID).HeightStockDr(ZoneID),
14646 1 : WalkIn(WalkInID).UValueStockDr(ZoneID),
14647 1 : WalkIn(WalkInID).AreaGlassDr(ZoneID),
14648 1 : WalkIn(WalkInID).HeightGlassDr(ZoneID),
14649 1 : WalkIn(WalkInID).UValueGlassDr(ZoneID));
14650 : } // Num zones for each walk in on system
14651 : } // NumWalkInsLT on system
14652 :
14653 4 : for (int CompressorNum = 1; CompressorNum <= TransSystem(TransSystemNum).NumCompressorsHP; ++CompressorNum) {
14654 3 : int CompID = TransSystem(TransSystemNum).CompressorNumHP(CompressorNum);
14655 3 : print(state.files.eio,
14656 : " High Pressure Refrigeration Compressor,{},{},{:.0R}\n",
14657 : CompID,
14658 3 : Compressor(CompID).Name,
14659 3 : Compressor(CompID).NomCap);
14660 : } // NumCompressorsHP
14661 4 : for (int CompressorNum = 1; CompressorNum <= TransSystem(TransSystemNum).NumCompressorsLP; ++CompressorNum) {
14662 3 : int CompID = TransSystem(TransSystemNum).CompressorNumLP(CompressorNum);
14663 3 : print(state.files.eio,
14664 : " Low Pressure Refrigeration Compressor,{},{},{:.0R}\n",
14665 : CompID,
14666 3 : Compressor(CompID).Name,
14667 3 : Compressor(CompID).NomCap);
14668 : } // NumCompressorsLP
14669 :
14670 1 : if (TransSystem(TransSystemNum).NumGasCoolers >= 1) {
14671 1 : int GasCoolerID = TransSystem(TransSystemNum).GasCoolerNum(1);
14672 1 : print(state.files.eio,
14673 : " Refrigeration GasCooler:Air-Cooled,{},{},{:.1R},{:.1R},{:.1R},{:.1R},{:.1R}\n",
14674 : GasCoolerID,
14675 1 : GasCooler(GasCoolerID).Name,
14676 1 : GasCooler(GasCoolerID).RatedOutletP,
14677 1 : GasCooler(GasCoolerID).RatedOutletT,
14678 1 : GasCooler(GasCoolerID).RatedApproachT,
14679 1 : GasCooler(GasCoolerID).RatedCapacity,
14680 1 : GasCooler(GasCoolerID).RatedFanPower);
14681 : } // System(SystemNum)%NumGasCoolers >= 1
14682 :
14683 : } // NumTransRefrigSystems
14684 : } //(NumTransRefrigSystems > 0)
14685 :
14686 801 : if (state.dataRefrigCase->NumSimulationSecondarySystems > 0) {
14687 1 : print(state.files.eio, "#Secondary Refrigeration Systems,{}\n", state.dataRefrigCase->NumSimulationSecondarySystems);
14688 3 : for (int SecondaryID = 1; SecondaryID <= state.dataRefrigCase->NumSimulationSecondarySystems; ++SecondaryID) {
14689 2 : switch (Secondary(SecondaryID).FluidType) {
14690 1 : case SecFluidType::AlwaysLiquid: {
14691 1 : print(state.files.eio,
14692 : "Secondary Refrigeration System: Fluid Always Liquid,{},{},{},{},{},{:.1R},{:.2R},{:.2R},{:.3R},{:.3R}\n",
14693 : SecondaryID,
14694 1 : Secondary(SecondaryID).Name,
14695 1 : Secondary(SecondaryID).NumCases,
14696 1 : Secondary(SecondaryID).NumWalkIns,
14697 1 : Secondary(SecondaryID).FluidName,
14698 1 : Secondary(SecondaryID).CoolingLoadRated,
14699 1 : Secondary(SecondaryID).TEvapDesign,
14700 1 : Secondary(SecondaryID).TApproachDifRated,
14701 1 : Secondary(SecondaryID).TRangeDifRated,
14702 1 : Secondary(SecondaryID).PumpTotRatedPower);
14703 1 : } break;
14704 1 : case SecFluidType::PhaseChange: {
14705 1 : print(state.files.eio,
14706 : "Secondary Refrigeration System: Liquid Overfeed,{},{},{},{},{},{:.1R},{:.2R},{:.2R},{:.3R},{:.3R}\n",
14707 : SecondaryID,
14708 1 : Secondary(SecondaryID).Name,
14709 1 : Secondary(SecondaryID).NumCases,
14710 1 : Secondary(SecondaryID).NumWalkIns,
14711 1 : Secondary(SecondaryID).FluidName,
14712 1 : Secondary(SecondaryID).CoolingLoadRated,
14713 1 : Secondary(SecondaryID).TEvapDesign,
14714 1 : Secondary(SecondaryID).TApproachDifRated,
14715 1 : Secondary(SecondaryID).CircRate,
14716 1 : Secondary(SecondaryID).PumpTotRatedPower);
14717 1 : } break;
14718 0 : default:
14719 0 : break;
14720 : }
14721 9 : for (int CaseNum = 1; CaseNum <= Secondary(SecondaryID).NumCases; ++CaseNum) {
14722 7 : int CaseID = Secondary(SecondaryID).CaseNum(CaseNum);
14723 7 : if (RefrigCase(CaseID).ZoneNodeNum > 0) {
14724 7 : print(state.files.eio,
14725 : " Refrigeration Case,{},{},{},{},{},{:.1R},{:.2R},{:.1R},{:.1R},{:.1R},{:.1R},{:.1R},{:.1R}\n",
14726 : CaseID,
14727 7 : RefrigCase(CaseID).Name,
14728 7 : RefrigCase(CaseID).ZoneName,
14729 7 : RefrigCase(CaseID).ZoneNodeNum,
14730 7 : state.dataLoopNodes->NodeID(RefrigCase(CaseID).ZoneNodeNum),
14731 7 : RefrigCase(CaseID).RateTotCapPerLength,
14732 7 : RefrigCase(CaseID).RatedLHR,
14733 7 : RefrigCase(CaseID).Temperature,
14734 7 : RefrigCase(CaseID).Length,
14735 7 : RefrigCase(CaseID).OperatingFanPower,
14736 7 : RefrigCase(CaseID).LightingPower,
14737 7 : RefrigCase(CaseID).AntiSweatPower,
14738 7 : RefrigCase(CaseID).DefrostPower);
14739 : }
14740 : } // NumCases on secondary on secondary system
14741 :
14742 3 : for (int WalkInNum = 1; WalkInNum <= Secondary(SecondaryID).NumWalkIns; ++WalkInNum) {
14743 1 : int WalkInID = Secondary(SecondaryID).WalkInNum(WalkInNum);
14744 1 : print(state.files.eio,
14745 : " Walk In,{},{},{:.1R},{:.1R},{:.1R},{:.1R},{:.1R},{:.1R},{:.1R}\n",
14746 : WalkInID,
14747 1 : WalkIn(WalkInID).Name,
14748 1 : WalkIn(WalkInID).DesignRatedCap,
14749 1 : WalkIn(WalkInID).Temperature,
14750 1 : WalkIn(WalkInID).CoilFanPower,
14751 1 : WalkIn(WalkInID).CircFanPower,
14752 1 : WalkIn(WalkInID).DesignLighting,
14753 1 : WalkIn(WalkInID).HeaterPower,
14754 1 : WalkIn(WalkInID).DefrostCapacity);
14755 2 : for (int ZoneID = 1; ZoneID <= WalkIn(WalkInID).NumZones; ++ZoneID) {
14756 1 : print(state.files.eio,
14757 : " Walk In Surfaces Facing Zone,{},{:.1R},{:.4R},{:.2R},{:.2R},{:.4R},{:.2R},{:.2R},{:.4R}\n",
14758 1 : WalkIn(WalkInID).ZoneName(ZoneID),
14759 1 : WalkIn(WalkInID).SurfaceArea(ZoneID),
14760 1 : WalkIn(WalkInID).UValue(ZoneID),
14761 1 : WalkIn(WalkInID).AreaStockDr(ZoneID),
14762 1 : WalkIn(WalkInID).HeightStockDr(ZoneID),
14763 1 : WalkIn(WalkInID).UValueStockDr(ZoneID),
14764 1 : WalkIn(WalkInID).AreaGlassDr(ZoneID),
14765 1 : WalkIn(WalkInID).HeightGlassDr(ZoneID),
14766 1 : WalkIn(WalkInID).UValueGlassDr(ZoneID));
14767 : } // zones for walk ins on secondary
14768 : } // walk ins on secondary
14769 :
14770 2 : for (int CoilNum = 1; CoilNum <= Secondary(SecondaryID).NumCoils; ++CoilNum) {
14771 0 : int CoilID = Secondary(SecondaryID).CoilNum(CoilNum);
14772 0 : print(state.files.eio, " Air Chiller Load,{},{},{}\n", WarehouseCoil(CoilID).Name, CoilID, WarehouseCoil(CoilID).ZoneName);
14773 : } // numairchillers
14774 : } // secondary
14775 : } // numsimulationsecondarys
14776 :
14777 801 : if (state.dataRefrigCase->NumRefrigChillerSets > 0) {
14778 1 : print(state.files.eio, "#ZoneHVAC/Refrigeration Air Chiller Sets,{}\n", state.dataRefrigCase->NumRefrigChillerSets);
14779 11 : for (int ChillerSetNum = 1; ChillerSetNum <= state.dataRefrigCase->NumRefrigChillerSets; ++ChillerSetNum) {
14780 10 : print(state.files.eio,
14781 : "ZoneHVAC/Refrigeration Air Chiller Set,{},{},{},{}\n",
14782 10 : AirChillerSet(ChillerSetNum).Name,
14783 : ChillerSetNum,
14784 10 : AirChillerSet(ChillerSetNum).NumCoils,
14785 10 : AirChillerSet(ChillerSetNum).ZoneName);
14786 :
14787 93 : for (int CoilNum = 1; CoilNum <= AirChillerSet(ChillerSetNum).NumCoils; ++CoilNum) {
14788 83 : int CoilID = AirChillerSet(ChillerSetNum).CoilNum(CoilNum);
14789 83 : print(state.files.eio,
14790 : " Refrigeration Air Chiller,{},{},{},{},{},{:.1R},{:.2R},{:.1R},{:.1R},{:.1R},{:.1R},{:.1R},{:.1R}\n",
14791 : CoilID,
14792 83 : WarehouseCoil(CoilID).Name,
14793 83 : WarehouseCoil(CoilID).ZoneName,
14794 83 : WarehouseCoil(CoilID).ZoneNodeNum,
14795 83 : state.dataLoopNodes->NodeID(WarehouseCoil(CoilID).ZoneNodeNum),
14796 83 : WarehouseCoil(CoilID).UnitLoadFactorSens,
14797 83 : WarehouseCoil(CoilID).RatedSensibleCap,
14798 83 : WarehouseCoil(CoilID).TEvapDesign,
14799 83 : WarehouseCoil(CoilID).RatedTemperatureDif,
14800 83 : WarehouseCoil(CoilID).RatedFanPower,
14801 83 : WarehouseCoil(CoilID).HeaterPower,
14802 83 : WarehouseCoil(CoilID).DefrostCapacity,
14803 83 : WarehouseCoil(CoilID).RatedAirVolumeFlow);
14804 : } // numairchillers
14805 : } // DataHeatBalance::NumRefrigChillerSets
14806 : } // DataHeatBalance::NumRefrigChillerSets
14807 801 : }
14808 :
14809 56850 : void WalkInData::CalculateWalkIn(EnergyPlusData &state) // Absolute pointer to Walk In
14810 : {
14811 :
14812 : // SUBROUTINE INFORMATION:
14813 : // AUTHOR Therese Stovall, ORNL, May 2009
14814 : // DATE WRITTEN Oct/Nov 2004
14815 : // MODIFIED na
14816 : // RE-ENGINEERED na
14817 :
14818 : // PURPOSE OF THIS SUBROUTINE:
14819 : // To model Walk In Coolers.
14820 :
14821 : // METHODOLOGY EMPLOYED:
14822 : // Walk-in cooler performance is based on the ASHRAE load model, which includes
14823 : // infiltration through door openings and sensible loss through walls/ceilings identified
14824 : // by the user as sum of UA for each zone. A sub-floor heater is assumed to be sized so that
14825 : // the temperature of the slab beneath the floor insulation is the same as the ground
14826 : // temperature (to avoid ground freezing and heaving).
14827 : // All equipment loads (fan, light, heaters) are modeled as well. Sensible and latent
14828 : // exchange with multiple adjoining zones is included. A master schedule is used for the Walk In operation and
14829 : // additional schedules control the lights, defrost, and heater operation.
14830 :
14831 : // The fan is assumed to be off for Hot-Gas, Hot-Brine, and Electric defrost. The user can choose
14832 : // to include the load due to bringing the coil mass up from the evaporating temperature to the melting temperature
14833 : // if they choose. Otherwise this factor is set to zero.
14834 :
14835 : // Unmet loads are accumulated to be met the following time step. This usually occurs during defrost and
14836 : // restocking.
14837 :
14838 : // REFERENCES:
14839 : // ASHRAE 2006 Handbook, chapters 13 and 14.
14840 : // Gosney, W.B., Olama, G.A.-L., Heat and Enthalpy Gains through Cold Room Doorways,
14841 : // Proceedings of the Institute of Refrigeration, vol. 72, pp 31-41, 1975
14842 :
14843 56850 : Real64 constexpr DefaultWalkInDoorOpenFactor(0.05); // walk in door open factor (fraction time open)
14844 :
14845 : static constexpr std::string_view RoutineName("CalculateWalkIn");
14846 56850 : Real64 CapApplied(0.0); // Walk In total capacity at specific operating conditions
14847 56850 : Real64 DefrostSchedule(0.0); // WalkIn defrost schedule, between 0 and 1
14848 56850 : Real64 DefrostEnergyNeeded(0.0); // Energy needed to melt all ice, used with temperature termination (J)
14849 56850 : Real64 DensityFactorFm(0.0); // called Fm in ASHRAE 2010 eq 13 page 24.5 for door infiltration
14850 56850 : Real64 DensitySqRtFactor(0.0); // from ASHRAE 2010 eq 12 page 24.4 for door infiltration
14851 :
14852 : // Current value of WalkIn operating (availability) schedule
14853 56850 : Real64 WalkInSchedule = this->availSched->getCurrentVal();
14854 56850 : if (WalkInSchedule <= 0) {
14855 0 : return;
14856 : }
14857 : // GET OTHER SCHEDULES
14858 56850 : DefrostSchedule = this->defrostSched->getCurrentVal();
14859 56850 : Real64 DefrostDripDownSchedule = this->defrostDripDownSched->getCurrentVal();
14860 : // next statement In case user doesn't understand concept of drip down schedule
14861 56850 : DefrostDripDownSchedule = max(DefrostDripDownSchedule, DefrostSchedule);
14862 :
14863 : // next four values optional, so set to default before checking for schedule
14864 56850 : Real64 StockingLoad = (this->stockingSched != nullptr) ? this->stockingSched->getCurrentVal() : 0.0;
14865 56850 : Real64 LightingSchedule = (this->lightingSched != nullptr) ? this->lightingSched->getCurrentVal() : 1.0;
14866 56850 : Real64 HeaterSchedule = (this->heaterSched != nullptr) ? this->heaterSched->getCurrentVal() : 1.0;
14867 56850 : Real64 CircFanSchedule = (this->circFanAvailSched != nullptr) ? this->circFanAvailSched->getCurrentVal() : 1.0;
14868 :
14869 : // Set local subroutine variables for convenience
14870 56850 : Real64 TWalkIn = this->Temperature; // WalkIn operating temperature (C)
14871 :
14872 : // Enthalpy of air corresponding to walk in temperature and 90% assumed RH (J/kg)
14873 56850 : Real64 EnthalpyAirWalkIn = Psychrometrics::PsyHFnTdbRhPb(state, TWalkIn, 0.9, state.dataEnvrn->OutBaroPress); // assume 90%RH in cooler
14874 :
14875 : // corresponds to walk in temp and 90% assumed RH(kg water/kg dry air)
14876 56850 : Real64 HumRatioAirWalkIn = Psychrometrics::PsyWFnTdbH(state, TWalkIn, EnthalpyAirWalkIn);
14877 56850 : Real64 DensityAirWalkIn = Psychrometrics::PsyRhoAirFnPbTdbW(state, state.dataEnvrn->OutBaroPress, TWalkIn, HumRatioAirWalkIn);
14878 56850 : Real64 Conv = state.dataEnvrn->Latitude * 2.0 * Constant::Pi / 360.0; // Convert DataEnvironment::Latitude to radians
14879 56850 : Real64 Gravity = 9.780373 * (1.0 + 0.0052891 * pow_2(std::sin(Conv)) - 0.0000059 * pow_2(std::sin(2.0 * Conv)));
14880 :
14881 : // CALCULATE ALL LOADS INFLUENCED BY ZONE TEMPERATURE AND RH
14882 : // set to zero before summing over zones
14883 56850 : Real64 SensibleLoadTotal(0.0); // Total sensible load on WalkIn over all zones (W)
14884 56850 : Real64 LatentLoadTotal(0.0); // total latent load on WalkIn over all zones (W)
14885 56850 : Real64 ZoneLatentLoad(0.0); // Latent WalkIn credit delivered to zone (W)
14886 :
14887 56850 : this->SensZoneCreditRate = 0.0;
14888 56850 : this->SensZoneCreditCoolRate = 0.0;
14889 56850 : this->SensZoneCreditCool = 0.0;
14890 56850 : this->SensZoneCreditHeatRate = 0.0;
14891 56850 : this->SensZoneCreditHeat = 0.0;
14892 56850 : this->LatZoneCreditRate = 0.0;
14893 :
14894 : // Start zone loop:
14895 113700 : for (int ZoneID = 1; ZoneID <= this->NumZones; ++ZoneID) {
14896 56850 : int zoneNum = this->ZoneNum(ZoneID);
14897 56850 : int zoneNodeNum = this->ZoneNodeNum(ZoneID);
14898 56850 : Real64 ZoneDryBulb = state.dataLoopNodes->Node(zoneNodeNum).Temp; // Dry Bulb Temperature of adjacent zone
14899 56850 : Real64 WalkInLatLoad = -ZoneLatentLoad; // Walk in cooler latent load facing particular zone (W)
14900 56850 : Real64 DelTemp = ZoneDryBulb - TWalkIn; // Difference between zone and walk in temperatures (C)
14901 56850 : Real64 StockDoorArea = this->AreaStockDr(ZoneID);
14902 56850 : Real64 GlassDoorArea = this->AreaGlassDr(ZoneID); // facing a particular zone (m2)
14903 56850 : Real64 UAOtherSurfaces = this->SurfaceArea(ZoneID) * this->UValue(ZoneID); // UA for non-door surfaces facing a certain zone (W/C)
14904 56850 : Real64 ZInfilSensLoad(0.0); // Sensible load due to infiltration in one zone
14905 56850 : Real64 ZdoorSensLoad(0.0); // Sensible load due to UA delta T through closed door in one zone
14906 :
14907 : // Derate compared to fully developed flow through 100% open door
14908 56850 : Real64 DoorFlowFactor = 0.8; // see ASHRAE Refrigeration, p13.5, 2006
14909 56850 : if (DelTemp <= 11.0) {
14910 2 : DoorFlowFactor = 1.1; // from ASHRAE Refrigeration Loads
14911 : }
14912 :
14913 : // Get infiltration loads if either type of door is present in this zone
14914 56850 : if (StockDoorArea > 0.0 || GlassDoorArea > 0.0) {
14915 : // Zone relative humidity fraction (decimal)
14916 227400 : Real64 ZoneRHFrac = Psychrometrics::PsyRhFnTdbWPb(state,
14917 56850 : state.dataLoopNodes->Node(zoneNodeNum).Temp,
14918 56850 : state.dataLoopNodes->Node(zoneNodeNum).HumRat,
14919 56850 : state.dataEnvrn->OutBaroPress,
14920 : RoutineName);
14921 : // Enthalpy of the air in a particular zone (J/kg)
14922 56850 : Real64 EnthalpyZoneAir = Psychrometrics::PsyHFnTdbRhPb(state, ZoneDryBulb, ZoneRHFrac, state.dataEnvrn->OutBaroPress, RoutineName);
14923 56850 : Real64 HumRatioZoneAir = Psychrometrics::PsyWFnTdbH(state, ZoneDryBulb, EnthalpyZoneAir, RoutineName);
14924 : Real64 DensityZoneAir =
14925 56850 : Psychrometrics::PsyRhoAirFnPbTdbW(state, state.dataEnvrn->OutBaroPress, ZoneDryBulb, HumRatioZoneAir, RoutineName);
14926 56850 : if (DensityZoneAir < DensityAirWalkIn) { // usual case when walk in is colder than zone
14927 56850 : DensitySqRtFactor = std::sqrt(1.0 - DensityZoneAir / DensityAirWalkIn);
14928 56850 : DensityFactorFm = std::pow(2.0 / (1.0 + std::pow(DensityAirWalkIn / DensityZoneAir, 0.333)), 1.5);
14929 : } else { // temperature inversion with zone colder and/or drier than walk-in, infiltration in reverse direction
14930 : // The enthalpy difference will show whether the energy transport is reversed
14931 : //(same air mass exchange in either direction )
14932 : // That is, these factors establish the magnitude of the exchange air flow, not direction
14933 0 : DensitySqRtFactor = std::sqrt(1.0 - DensityAirWalkIn / DensityZoneAir);
14934 0 : DensityFactorFm = std::pow(2.0 / (1.0 + std::pow(DensityZoneAir / DensityAirWalkIn, 0.333)), 1.5);
14935 : } // check for density in zone and in walk-in to avoid taking sqrt of neg number
14936 :
14937 56850 : Real64 StockDoorInfLoad = 0.0; // infiltration through stock doors in a particular zone (W)
14938 56850 : Real64 StockDoorSensHeat = 0.0; // sensible heat gain through stock doors (UA*delta T) (W)
14939 56850 : Real64 DoorProtectEff(0.0); // Door protection effectiveness
14940 56850 : Real64 DrHeight(0.0); // Door height (m)
14941 56850 : Real64 DrArea(0.0); // Door area (m2)
14942 56850 : Real64 FullFlowInfLoad(0.0); // Total load (lat + sens) due to 100% open doors w/ fully developed flow (W)
14943 :
14944 56850 : if (StockDoorArea > 0.0) {
14945 56850 : std::array<Real64, (int)WIStockDoor::Num> doorProtectEffs = {0.0, 0.5, 0.9}; // Values from ASHRAE Ref p 13.6
14946 56850 : DoorProtectEff = doorProtectEffs[(int)this->StockDoorProtectType(ZoneID)];
14947 56850 : DrHeight = this->HeightStockDr(ZoneID);
14948 56850 : DrArea = StockDoorArea;
14949 : // if exists, get Stock Door Zone schedule
14950 56850 : Real64 DoorOpenFactor = DefaultWalkInDoorOpenFactor;
14951 56850 : if (this->stockDoorOpenScheds(ZoneID) != nullptr) {
14952 56850 : DoorOpenFactor = this->stockDoorOpenScheds(ZoneID)->getCurrentVal();
14953 : }
14954 :
14955 56850 : FullFlowInfLoad = 0.221 * DrArea * (EnthalpyZoneAir - EnthalpyAirWalkIn) * DensityAirWalkIn * DensitySqRtFactor *
14956 56850 : std::sqrt(Gravity * DrHeight) * DensityFactorFm;
14957 56850 : StockDoorInfLoad = FullFlowInfLoad * DoorOpenFactor * DoorFlowFactor * (1.0 - DoorProtectEff);
14958 56850 : StockDoorSensHeat = DrArea * this->UValueStockDr(ZoneID) * DelTemp;
14959 : } // have stock doors
14960 :
14961 56850 : Real64 GlassDoorSensHeat(0.0); // sensible heat gain through glass reach-in doors (UA*delta T) (W)
14962 56850 : Real64 GlassDoorInfLoad = 0.0; // infiltration through glass reach-in doors in a particular zone (W)
14963 :
14964 56850 : if (GlassDoorArea > 0.0) {
14965 0 : DoorProtectEff = 0.5; // Assume glass doors have air curtain
14966 0 : DrHeight = this->HeightGlassDr(ZoneID);
14967 0 : DrArea = GlassDoorArea;
14968 : // get Glass Door Zone schedule
14969 0 : Real64 DoorOpenFactor = DefaultWalkInDoorOpenFactor; // default value
14970 0 : if (this->glassDoorOpenScheds(ZoneID) != nullptr) {
14971 0 : DoorOpenFactor = this->glassDoorOpenScheds(ZoneID)->getCurrentVal();
14972 : }
14973 :
14974 0 : FullFlowInfLoad = 0.221 * DrArea * (EnthalpyZoneAir - EnthalpyAirWalkIn) * DensityAirWalkIn * DensitySqRtFactor *
14975 0 : std::sqrt(Gravity * DrHeight) * DensityFactorFm;
14976 0 : GlassDoorInfLoad = FullFlowInfLoad * DoorOpenFactor * DoorFlowFactor * (1.0 - DoorProtectEff);
14977 0 : GlassDoorSensHeat = DrArea * this->UValueGlassDr(ZoneID) * DelTemp;
14978 : } // have Glass doors
14979 :
14980 : // assume mass dry air infiltrating into walk-in == mass out into zone,
14981 : // that is, equal air exchange (ASHRAE 2006 Refrigeration)
14982 56850 : Real64 ZoneInfilLoad = -StockDoorInfLoad - GlassDoorInfLoad; // Walk in cooler infiltration load (sens + latent) in certain zone (W)
14983 56850 : Real64 MassDryAirRate =
14984 56850 : -ZoneInfilLoad / (EnthalpyZoneAir - EnthalpyAirWalkIn); // Mass dry air infiltrating into/out-of walkin through doors (kg/s)
14985 56850 : Real64 WaterRemovRate =
14986 56850 : MassDryAirRate * (HumRatioZoneAir - HumRatioAirWalkIn); // Walk in cooler removes water at this rate in this zone (kg/s)
14987 : // Just as with cases, we assume no latent credit (water removal = 0) to zone or load on cooler during dripdown
14988 : // To be consistent with the treatment of refrigerated cases, latent load
14989 : // and latent credit are both based on reducing the infiltrating vapor to ice. (This is
14990 : // slightly greater than if the latent credit were based upon condensing out the water as liquid.)
14991 : // then it would be: ZoneLatentLoad = -WaterRemovRate * WaterToVaporEnthalpy * (1.0d0-DefrostDripDownSchedule)
14992 56850 : ZoneLatentLoad = -WaterRemovRate * IcetoVaporEnthalpy * (1.0 - DefrostDripDownSchedule);
14993 56850 : ZInfilSensLoad = ZoneInfilLoad - (-WaterRemovRate * IcetoVaporEnthalpy); // done to avoid moving latent to sens during dripdown
14994 56850 : ZdoorSensLoad = -GlassDoorSensHeat - StockDoorSensHeat;
14995 56850 : WalkInLatLoad = -ZoneLatentLoad;
14996 56850 : if (this->TEvapDesign <= 0.0) { // water turned to ice on coil
14997 56850 : WalkInLatLoad = WaterRemovRate * IcetoVaporEnthalpy * (1.0 - DefrostDripDownSchedule);
14998 : // FROST: keep track of frost build up on evaporator coil
14999 : // avoid accumulation during warm-up to avoid reverse dd test problem
15000 56850 : if (!state.dataGlobal->WarmupFlag) {
15001 7776 : Real64 FrostChangekg = (WaterRemovRate * state.dataGlobal->TimeStepZoneSec) * (1.0 - DefrostDripDownSchedule);
15002 7776 : this->KgFrost += FrostChangekg;
15003 : }
15004 : } // water to ice
15005 : } // No doors
15006 :
15007 : // Sensible WalkIn credit delivered to a particular zone (W)
15008 56850 : Real64 ZoneSensLoad = ZInfilSensLoad + ZdoorSensLoad - UAOtherSurfaces * DelTemp;
15009 56850 : Real64 WalkInSensLoad = -ZoneSensLoad; // Walk in cooler sensible load facing particular zone (W)
15010 :
15011 : // Update globals for use in ZoneTemperaturePredictorCorrector (Air Heat Balance) and
15012 : // Zone Equipment Manager. Sum walk-in credits to zone using existing 'casecredit' variable
15013 : // No return air fractions are applied to walk-ins, and no latent in stocking -
15014 :
15015 56850 : state.dataHeatBal->RefrigCaseCredit(zoneNum).SenCaseCreditToZone += ZoneSensLoad;
15016 56850 : state.dataHeatBal->RefrigCaseCredit(zoneNum).LatCaseCreditToZone += ZoneLatentLoad;
15017 :
15018 : // Set up report variables for each zone for this walk-in
15019 : // Sensible heat exchange can be positive or negative, split into separate output variables and always report positive value
15020 56850 : this->SensZoneCreditRate(ZoneID) = ZoneSensLoad;
15021 56850 : if (ZoneSensLoad <= 0.0) {
15022 56850 : this->SensZoneCreditCoolRate(ZoneID) = -ZoneSensLoad;
15023 56850 : this->SensZoneCreditCool(ZoneID) = -ZoneSensLoad * state.dataGlobal->TimeStepZoneSec;
15024 56850 : this->SensZoneCreditHeatRate(ZoneID) = 0.0;
15025 56850 : this->SensZoneCreditHeat(ZoneID) = 0.0;
15026 : } else {
15027 0 : this->SensZoneCreditHeatRate(ZoneID) = ZoneSensLoad;
15028 0 : this->SensZoneCreditHeat(ZoneID) = ZoneSensLoad * state.dataGlobal->TimeStepZoneSec;
15029 0 : this->SensZoneCreditCoolRate(ZoneID) = 0.0;
15030 0 : this->SensZoneCreditCool(ZoneID) = 0.0;
15031 : }
15032 : // This rate should always be negative
15033 56850 : this->LatZoneCreditRate(ZoneID) = ZoneLatentLoad;
15034 56850 : this->LatZoneCredit(ZoneID) = ZoneLatentLoad * state.dataGlobal->TimeStepZoneSec;
15035 :
15036 : // Running total over all zones, use later to dispatch capacity
15037 56850 : SensibleLoadTotal += WalkInSensLoad;
15038 56850 : LatentLoadTotal += WalkInLatLoad;
15039 :
15040 : } // Do loop over zones for zone-condition-related sensible and latent loads
15041 :
15042 : // cooling coil fan power default is 375W, = 1/2 HP (Tyler showed 1/3 to 3/4 hp)
15043 :
15044 : // CALCULATE AUX LOADS DUE TO LIGHTS, FANS AND HEATERS
15045 56850 : Real64 LightLoad = this->DesignLighting * LightingSchedule; // Total lighting energy rate (W)
15046 : // turn coil fan off during defrost/drip - down period
15047 :
15048 : // Total fan energy rate (W)
15049 56850 : Real64 FanLoad = this->CircFanPower * CircFanSchedule + this->CoilFanPower * (1.0 - DefrostDripDownSchedule);
15050 56850 : Real64 HeaterLoad = this->HeaterPower * HeaterSchedule; // Total heater (except defrost) energy rate (W)
15051 : // Calculate floor load - using 'DataEnvironment::GroundTemp' assigned in weather manager (can be entered by user if desired)
15052 : // Default value is 18C.
15053 : // Total floor energy rate (W)
15054 : Real64 FloorLoad =
15055 56850 : this->FloorArea * this->FloorUValue * (state.dataEnvrn->GroundTemp[(int)DataEnvironment::GroundTempType::BuildingSurface] - TWalkIn);
15056 :
15057 : Real64 DefrostLoad;
15058 :
15059 : // DEFROST CALCULATIONS
15060 56850 : if ((DefrostSchedule > 0.0) && (this->defrostType != DefrostType::None) && (this->defrostType != DefrostType::OffCycle)) {
15061 616 : DefrostLoad = this->DefrostCapacity * DefrostSchedule; // W
15062 616 : Real64 StartFrostKg = this->KgFrost; // frost load at start of time step (kg of ice)
15063 616 : Real64 DefrostEnergy = DefrostLoad * state.dataGlobal->TimeStepZoneSec; // Joules
15064 616 : if (this->DefrostControlType == DefrostCtrlType::TempTerm) {
15065 : // Need to turn defrost system off early if controlled by temperature and all ice melted
15066 : // For temperature termination, need to recognize not all defrost heat goes to melt ice
15067 : // Some goes to misc losses (for fluid defrost, some coil areas bare earlier than
15068 : // others and xfer heat to environment)
15069 : // Assume full ice melting satisfies temperature control.
15070 : // (defaults for DefEnergyFraction are :=0.7 for elec, =0.3 for fluids)
15071 0 : Real64 AvailDefrostEnergy = this->DefEnergyFraction * DefrostEnergy; // Joules avail to melt ice
15072 0 : Real64 IceSensHeatNeeded = 0.0; // Energy to raise frost temperature to 0C, used w/ temp termination (J)
15073 0 : if (StartFrostKg > 0.0) {
15074 0 : if (this->IceTemp < 0.0) {
15075 0 : Real64 StartIceTemp = this->IceTemp; // Frost temperature at start of time step [C]
15076 0 : IceSensHeatNeeded = StartFrostKg * SpecificHeatIce * (0.0 - StartIceTemp); // Joules
15077 0 : if (AvailDefrostEnergy >= IceSensHeatNeeded) {
15078 0 : this->IceTemp = 0.0;
15079 0 : AvailDefrostEnergy -= IceSensHeatNeeded; // Joules
15080 : } else { // DefrostEnergy < IceSensHeatNeeded
15081 0 : this->IceTemp = StartIceTemp + AvailDefrostEnergy / (SpecificHeatIce * StartFrostKg);
15082 0 : AvailDefrostEnergy = 0.0;
15083 : } // AvailDefrostEnergy >= IceSensHeatNeeded
15084 : } // IceTemp < 0, need to raise temperature of ice
15085 : // Reduce defrost heat load on walkin by amount of ice melted during time step
15086 0 : Real64 FrostChangekg = min(AvailDefrostEnergy / IceMeltEnthalpy, StartFrostKg);
15087 0 : if (FrostChangekg < StartFrostKg) {
15088 0 : DefrostLoad -= FrostChangekg * IceMeltEnthalpy / state.dataGlobal->TimeStepZone / Constant::rSecsInHour;
15089 0 : if (!state.dataGlobal->WarmupFlag) {
15090 0 : this->KgFrost = StartFrostKg - FrostChangekg;
15091 : }
15092 : // DefrostSchedule not changed
15093 : } else { // all frost melted during time step, so need to terminate defrost
15094 : // see Aug 8 page 3 notes
15095 0 : this->KgFrost = 0.0;
15096 0 : DefrostEnergyNeeded = (IceSensHeatNeeded + (FrostChangekg * IceMeltEnthalpy)) /
15097 0 : this->DefEnergyFraction; // Joules - energy needed including E unavail to melt ice
15098 0 : DefrostSchedule = min(DefrostSchedule, (DefrostEnergyNeeded / (this->DefrostCapacity * state.dataGlobal->TimeStepZoneSec)));
15099 : // reduce load on walkin by energy put into ice melting
15100 0 : DefrostLoad = max(0.0,
15101 0 : (DefrostSchedule * this->DefrostCapacity -
15102 0 : (IceSensHeatNeeded + (FrostChangekg * IceMeltEnthalpy)) / state.dataGlobal->TimeStepZoneSec));
15103 0 : this->IceTemp = this->TEvapDesign;
15104 :
15105 : } // frost melted during time step less than amount of ice at start
15106 : } else { // no frost present so terminate defrost and reset ice temperature for start of next defrost
15107 0 : DefrostLoad = 0.0;
15108 0 : DefrostSchedule = 0.0;
15109 0 : this->IceTemp = this->TEvapDesign;
15110 : } // have frost present
15111 :
15112 : } else { // Not temperature control type
15113 616 : Real64 FrostChangekg = min(DefrostEnergy / IceMeltEnthalpy, StartFrostKg);
15114 : // Reduce defrost heat load on walkin by amount of ice melted during time step
15115 616 : DefrostLoad -= FrostChangekg * IceMeltEnthalpy / state.dataGlobal->TimeStepZone / Constant::rSecsInHour;
15116 616 : if (!state.dataGlobal->WarmupFlag) {
15117 88 : this->KgFrost = StartFrostKg - FrostChangekg;
15118 : }
15119 : // DefrostSchedule not changed
15120 : } // Temperature termination control type
15121 :
15122 616 : } else { // DefrostSchedule <= 0 or have None or OffCycle
15123 56234 : DefrostLoad = 0.0;
15124 : } // Defrost calculations
15125 :
15126 56850 : if (this->defrostType == DefrostType::Elec) {
15127 39546 : this->ElecDefrostConsumption = this->DefrostCapacity * DefrostSchedule * state.dataGlobal->TimeStepZoneSec;
15128 39546 : this->ElecDefrostPower = this->DefrostCapacity * DefrostSchedule;
15129 : } else {
15130 17304 : this->ElecDefrostConsumption = 0.0;
15131 17304 : this->ElecDefrostPower = 0.0;
15132 : }
15133 :
15134 : // If hot brine or hot gas is used for defrost, need to reduce condenser load by heat reclaimed for defrost
15135 56850 : if (this->defrostType == DefrostType::Fluid) {
15136 17304 : this->HotDefrostCondCredit = this->DefrostCapacity * DefrostSchedule;
15137 : }
15138 :
15139 : // loads reflects that walk ins continue to accumulate loads, even during defrost
15140 : // but cap is used to report portion met by active system while operating
15141 :
15142 : //*** See if capacity meets load and manage accumulated stored energy ***********************************
15143 56850 : SensibleLoadTotal += LightLoad + HeaterLoad + FanLoad + StockingLoad + DefrostLoad + FloorLoad;
15144 56850 : Real64 LoadTotal = SensibleLoadTotal + LatentLoadTotal; // total load in time step (W)
15145 :
15146 : // Account for difference between load and capacity. Assume rack or system able to provide
15147 : // rated capacity. If it can't, that unmet energy will be stored and discharged at the system level.
15148 : // Here we are calculating the load the walk-in cooler places on the refrigeration compressor systems.
15149 : // Meet current load to the extent possible. If extra capacity available,
15150 : // apply it to previously unmet/stored loads. If capacity less than current load,
15151 : // (e.g. as it is during defrost cycles) save the unmet/stored load to be met in
15152 : // succeeding time steps. This is an artificial way of recognizing that the internal
15153 : // temperature will increase by a small amount during defrost and the system will have to
15154 : // run full out until the temperature is brought back down.
15155 :
15156 : // Rate needed to serve all stored energy during single time step (W)
15157 56850 : Real64 StoredEnergyRate = this->StoredEnergy / state.dataGlobal->TimeStepZone / Constant::rSecsInHour;
15158 56850 : Real64 LoadRequested = LoadTotal + StoredEnergyRate; // Load necessary to meet current and all stored energy needs (W)
15159 :
15160 : Real64 LatentCapApplied; // Walk In latent capacity at specific operating conditions
15161 56850 : Real64 SensibleCapApplied(0.0); // Walk In sensible capacity at specific operating conditions
15162 :
15163 : // prorate available cooling capacity for portion of time off due to drip down.
15164 56850 : Real64 MaxCap = this->DesignRatedCap * (1.0 - DefrostDripDownSchedule); // Design chilling capacity reduced according to drip-down schedule (W)
15165 :
15166 56850 : if (MaxCap >= LoadRequested) {
15167 : // Have more at least as much capacity available as needed, even counting stored energy
15168 55816 : CapApplied = LoadRequested;
15169 55816 : SensibleCapApplied = SensibleLoadTotal + StoredEnergyRate;
15170 55816 : LatentCapApplied = LatentLoadTotal;
15171 55816 : this->StoredEnergy = 0.0;
15172 : } else {
15173 : // Don't have as much capacity as needed (during dripdown or period following dripdown)
15174 1034 : CapApplied = MaxCap;
15175 1034 : LatentCapApplied = min(LatentLoadTotal, MaxCap); // Latent load should never be > capavail, but just in case...
15176 1034 : SensibleCapApplied = CapApplied - LatentCapApplied;
15177 1034 : if (!state.dataGlobal->WarmupFlag) {
15178 266 : this->StoredEnergy += (LoadTotal - MaxCap) * state.dataGlobal->TimeStepZoneSec;
15179 : }
15180 : } // CapAvail vs Load requested
15181 :
15182 : // ReportWalkIn( WalkInID)
15183 56850 : this->TotalCoolingLoad = CapApplied;
15184 56850 : this->TotalCoolingEnergy = CapApplied * state.dataGlobal->TimeStepZoneSec;
15185 56850 : this->TotSensCoolingEnergyRate = SensibleCapApplied;
15186 56850 : this->TotSensCoolingEnergy = SensibleCapApplied * state.dataGlobal->TimeStepZoneSec;
15187 56850 : this->TotLatCoolingEnergyRate = LatentCapApplied;
15188 56850 : this->TotLatCoolingEnergy = LatentCapApplied * state.dataGlobal->TimeStepZoneSec;
15189 :
15190 56850 : this->ElecFanPower = FanLoad;
15191 56850 : this->ElecFanConsumption = FanLoad * state.dataGlobal->TimeStepZoneSec;
15192 56850 : this->ElecHeaterPower = HeaterLoad;
15193 56850 : this->ElecHeaterConsumption = HeaterLoad * state.dataGlobal->TimeStepZoneSec;
15194 56850 : this->ElecLightingPower = LightLoad;
15195 56850 : this->ElecLightingConsumption = LightLoad * state.dataGlobal->TimeStepZoneSec;
15196 56850 : this->TotalElecPower = FanLoad + HeaterLoad + LightLoad + this->ElecDefrostPower;
15197 56850 : this->TotalElecConsumption = this->TotalElecPower * state.dataGlobal->TimeStepZoneSec;
15198 :
15199 : //**************************************************************************************************
15200 : // Cap Energy and Kg Frost to avoid floating overflow errors
15201 : // 1-time warning is issued. It should be rare but could happen with unrealistic inputs.
15202 56850 : if (this->StoredEnergy > MyLargeNumber) {
15203 0 : this->StoredEnergy = MyLargeNumber;
15204 0 : if (this->ShowUnmetWIEnergyWarning) {
15205 0 : ShowWarningError(state, format("Refrigeration:WalkIn: {}", this->Name));
15206 0 : ShowContinueError(state, " This walk-in cooler has insufficient capacity to meet the loads");
15207 0 : ShowContinueError(state,
15208 0 : format("... Occurrence info = {}, {} {}",
15209 0 : state.dataEnvrn->EnvironmentName,
15210 0 : state.dataEnvrn->CurMnDy,
15211 0 : General::CreateSysTimeIntervalString(state)));
15212 0 : ShowContinueError(state, " Refer to documentation for further explanation of Total Cooling Capacity.");
15213 0 : this->ShowUnmetWIEnergyWarning = false;
15214 : } // ShowStoreEnergyWarning
15215 : } // stored energy > large number
15216 56850 : if (this->KgFrost > MyLargeNumber) {
15217 0 : this->KgFrost = MyLargeNumber;
15218 0 : if (this->ShowWIFrostWarning) {
15219 0 : ShowWarningError(state, format("Refrigeration:WalkIn: {}", this->Name));
15220 0 : ShowContinueError(state, " This walkin cooler has insufficient defrost capacity to remove the excess frost accumulation.");
15221 0 : ShowContinueError(state, " Check the defrost schedule or defrost capacity. ");
15222 0 : ShowContinueError(state,
15223 0 : format("... Occurrence info = {}, {} {}",
15224 0 : state.dataEnvrn->EnvironmentName,
15225 0 : state.dataEnvrn->CurMnDy,
15226 0 : General::CreateSysTimeIntervalString(state)));
15227 0 : this->ShowWIFrostWarning = false;
15228 : }
15229 : }
15230 : }
15231 :
15232 4044 : void SecondaryLoopData::CalculateSecondary(EnergyPlusData &state, int const SecondaryNum)
15233 : {
15234 : // SUBROUTINE INFORMATION:
15235 : // AUTHOR Therese Stovall, ORNL
15236 : // DATE WRITTEN Spring 2009
15237 : // RE-ENGINEERED na
15238 :
15239 : // PURPOSE OF THIS SUBROUTINE:
15240 : // Find the total cooling load, pump power, and needed primary refrigerant supply temperature
15241 : // for a secondary system.
15242 :
15243 : // METHODOLOGY EMPLOYED:
15244 : // Sum the loads for the cases and walk-ins supplied by a secondary loop.
15245 : // Calculate the pumping power.
15246 : // Assume that the fluid supply and return temperatures are fixed and the
15247 : // fluid flow rate is varied to meed the variable load.
15248 : // User has been told in IO and Eng ref: for secondary systems/pumps: pump energy is f(viscosity),
15249 : // but since specifying Tcircfluid as steady
15250 : // state in loop, specify power for fluid and system head/resistance at that temp
15251 : // ashrae 2006 p4.1 supports 78% eff for pump impellers
15252 : // all power into heat because it would otherwise not be counted in zone
15253 : // if use semihermetic motor, also need to add motor ineff as heat
15254 :
15255 : // REFERENCES:
15256 : // SCE report
15257 : // others
15258 :
15259 4044 : Real64 constexpr ErrorTol(0.001); // Iterative solution tolerance
15260 :
15261 : bool AtPartLoad; // Whether or not need to iterate on pump power
15262 : bool DeRate; // If true, need to derate aircoils because don't carry over unmet energy
15263 : int Iter; // loop counter
15264 : Real64 CpBrine; // Specific heat (W/kg)
15265 : Real64 DensityBrine; // Density (kg/m3)
15266 : Real64 DiffTemp; // (C)
15267 : Real64 distPipeHeatGain; // Optional (W)
15268 : Real64 Error; // Used in iterative soln for pumps needed to meet load (that has to include pump energy)
15269 : Real64 FlowVolNeeded; // Flow rate needed to meet load (m3/s)
15270 : Real64 PartLdFrac; // Used to ratio pump power
15271 : Real64 PartPumpFrac; // Used to see if part pumps dispatched meets part pump load
15272 : Real64 PrevTotalLoad; // Used in pump energy convergence test
15273 : Real64 RefrigerationLoad; // Load for cases and walk-ins served by loop, does not include pump energy (W)
15274 : Real64 StoredEnergyRate; // Used to meet loads unmet in previous time step (related to defrost cycles
15275 : // on cases/walk-ins served)(W)
15276 : Real64 TBrineIn; // Brine temperature going to heat exchanger, C
15277 : Real64 TotalHotDefrostCondCredit; // Used to credit condenser when heat reclaim used for hot gas/brine defrost (W)
15278 : Real64 TotalPumpPower; // Total Pumping power for loop, W
15279 : Real64 TotalLoad; // Total Cooling Load on secondary loop, W
15280 4044 : Real64 TPipesReceiver(0.0); // Temperature used for contents of pipes and/or receiver in calculating shell losses (C)
15281 : Real64 VarFrac; // Pump power fraction for variable speed pump, dimensionless
15282 : Real64 VolFlowRate; // Used in dispatching pumps to meet load (m3/s)
15283 :
15284 4044 : auto &RefrigCase = state.dataRefrigCase->RefrigCase;
15285 4044 : auto &WalkIn = state.dataRefrigCase->WalkIn;
15286 4044 : auto &WarehouseCoil = state.dataRefrigCase->WarehouseCoil;
15287 :
15288 4044 : Real64 localTimeStep = (state.dataRefrigCase->UseSysTimeStep) ? state.dataHVACGlobal->TimeStepSys : state.dataGlobal->TimeStepZone;
15289 4044 : Real64 localTimeStepSec = localTimeStep * Constant::rSecsInHour;
15290 :
15291 4044 : switch (this->FluidType) {
15292 2022 : case SecFluidType::AlwaysLiquid: {
15293 2022 : CpBrine = this->CpBrineRated;
15294 2022 : DensityBrine = this->DensityBrineRated;
15295 2022 : TBrineIn = this->TBrineInRated;
15296 2022 : TPipesReceiver = this->TBrineAverage;
15297 2022 : } break;
15298 2022 : case SecFluidType::PhaseChange: {
15299 2022 : TPipesReceiver = this->TCondense;
15300 2022 : } break;
15301 0 : default:
15302 0 : break;
15303 : } // Fluid type
15304 :
15305 : // Initialize this secondary for this time step
15306 4044 : TotalPumpPower = 0.0;
15307 4044 : RefrigerationLoad = 0.0;
15308 4044 : TotalHotDefrostCondCredit = 0.0;
15309 4044 : FlowVolNeeded = 0.0;
15310 4044 : DeRate = false;
15311 :
15312 : // SCE page 28 gives a delta T for pipe heat gains
15313 : // (.25F each for supply and discharge) for use with mdot*cp.
15314 : // However, another author shows this as a major diff between dx and secondary
15315 : // So - allow the user to include this in his total load, even though he has to do
15316 : // most of the calculations before the input (to get to SumUADistPiping)).
15317 4044 : distPipeHeatGain = 0.0;
15318 4044 : if (this->SumUADistPiping > MySmallNumber) {
15319 4044 : int ZoneNodeNum = this->DistPipeZoneNodeNum;
15320 4044 : DiffTemp = state.dataLoopNodes->Node(ZoneNodeNum).Temp - TPipesReceiver;
15321 4044 : distPipeHeatGain = DiffTemp * this->SumUADistPiping;
15322 : // pipe heat load is a positive number (ie. heat absorbed by pipe, so needs to be subtracted
15323 : // from refrigcasecredit (- for cooling zone, + for heating zone)
15324 4044 : this->DistPipeZoneHeatGain = -distPipeHeatGain;
15325 4044 : state.dataHeatBal->RefrigCaseCredit(this->DistPipeZoneNum).SenCaseCreditToZone -= distPipeHeatGain;
15326 : } // calc distribution piping heat gains
15327 :
15328 4044 : Real64 receiverHeatGain = 0.0;
15329 4044 : if (this->SumUAReceiver > MySmallNumber) {
15330 2022 : int ZoneNodeNum = this->ReceiverZoneNodeNum;
15331 2022 : DiffTemp = state.dataLoopNodes->Node(ZoneNodeNum).Temp - TPipesReceiver;
15332 2022 : receiverHeatGain = DiffTemp * this->SumUAReceiver;
15333 : // receiver heat load is a positive number (ie. heat absorbed by receiver, so needs to be subtracted
15334 : // from refrigcasecredit (- for cooling zone, + for heating zone)
15335 2022 : this->ReceiverZoneHeatGain = -receiverHeatGain;
15336 2022 : state.dataHeatBal->RefrigCaseCredit(this->ReceiverZoneNum).SenCaseCreditToZone -= receiverHeatGain;
15337 : } // calc receiver heat gains
15338 :
15339 : // Sum up all the case and walk-in loads served by the secondary loop
15340 4044 : if (this->NumCases > 0) {
15341 18198 : for (int caseNum = 1; caseNum <= this->NumCases; ++caseNum) {
15342 14154 : int CaseID = this->CaseNum(caseNum);
15343 14154 : RefrigCase(CaseID).CalculateCase(state);
15344 : // increment TotalCoolingLoad Hot gas/brine defrost credits for each secondary loop
15345 14154 : RefrigerationLoad += RefrigCase(CaseID).TotalCoolingLoad;
15346 14154 : TotalHotDefrostCondCredit += RefrigCase(CaseID).HotDefrostCondCredit;
15347 : } // CaseNum
15348 : } // NumCases > 0
15349 4044 : if (this->NumWalkIns > 0) {
15350 4044 : for (int WalkInIndex = 1; WalkInIndex <= this->NumWalkIns; ++WalkInIndex) {
15351 2022 : int WalkInID = this->WalkInNum(WalkInIndex);
15352 2022 : WalkIn(WalkInID).CalculateWalkIn(state);
15353 : // increment TotalCoolingLoad for each system
15354 2022 : RefrigerationLoad += WalkIn(WalkInID).TotalCoolingLoad;
15355 2022 : TotalHotDefrostCondCredit += WalkIn(WalkInID).HotDefrostCondCredit;
15356 : } // NumWalkIns systems
15357 : } // Secondary(SecondaryNum)%NumWalkIns > 0
15358 :
15359 4044 : if (this->NumCoils > 0) {
15360 0 : for (int CoilIndex = 1; CoilIndex <= this->NumCoils; ++CoilIndex) {
15361 0 : int CoilID = this->CoilNum(CoilIndex);
15362 : // already CALL CalculateCoil(CoilID) for each coil, dispatched in coilset order for each zone
15363 : // increment TotalCoolingLoad for each system
15364 : // here will find out if secondary can serve total load, if not will derate coil output/case credits
15365 0 : RefrigerationLoad += WarehouseCoil(CoilID).TotalCoolingLoad;
15366 0 : TotalHotDefrostCondCredit += WarehouseCoil(CoilID).HotDefrostCondCredit;
15367 : } // NumCoils on secondary system
15368 : } // Secondary(SecondaryNum)%NumCoils > 0
15369 :
15370 4044 : TotalLoad = RefrigerationLoad + distPipeHeatGain + receiverHeatGain;
15371 4044 : AtPartLoad = true;
15372 : // Check to see if load is already >+ maxload without pump heat
15373 4044 : if (this->FluidType == SecFluidType::AlwaysLiquid) { //>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
15374 2022 : FlowVolNeeded = TotalLoad / this->HeatExchangeEta / (CpBrine * DensityBrine * (TBrineIn - this->TEvapDesign));
15375 : // For brine/glycol systems, find flow volume needed to meet load
15376 : // Per ashrae 2006, p4.1, eval mass flow rate to pump at brine return (to chiller) temp
15377 : // because pumps located in return piping
15378 2022 : if (FlowVolNeeded >= this->MaxVolFlow) {
15379 : // Don't need to iterate on pumps, just set to max. Will have unmet load this time step (unless coils present)
15380 4 : VolFlowRate = this->MaxVolFlow;
15381 4 : TotalPumpPower = this->PumpTotRatedPower;
15382 4 : TotalLoad += TotalPumpPower * this->PumpPowerToHeat;
15383 4 : AtPartLoad = false;
15384 4 : if (this->NumCoils > 0) {
15385 0 : DeRate = true;
15386 : }
15387 : } // flowvolneeded >= maxvolflow
15388 : } else { // have SecFluidTypePhaseChange !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
15389 2022 : if (TotalLoad >= this->MaxLoad) {
15390 5 : TotalPumpPower = this->PumpTotRatedPower;
15391 5 : TotalLoad += TotalPumpPower * this->PumpPowerToHeat;
15392 5 : VolFlowRate = this->MaxVolFlow;
15393 5 : AtPartLoad = false;
15394 5 : if (this->NumCoils > 0) {
15395 0 : DeRate = true;
15396 : }
15397 : }
15398 : } // fluid type check for max load or max flow >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
15399 :
15400 : // If totalLoad < maxload, then need to calculate partial pump load
15401 : // Need an iterative soln for pump energy needed to meet total load
15402 : // because that total load has to include pump energy
15403 4044 : if (AtPartLoad) {
15404 7287 : for (Iter = 1; Iter <= 10; ++Iter) {
15405 7287 : if (TotalLoad <= 0.0) {
15406 : // Load on secondary loop is zero (or negative).
15407 : // Set volumetric flow rate and pump power to be zero.
15408 0 : VolFlowRate = 0.0;
15409 0 : TotalPumpPower = 0.0;
15410 0 : break;
15411 : }
15412 7287 : PrevTotalLoad = TotalLoad;
15413 7287 : if (this->FluidType == SecFluidType::AlwaysLiquid) {
15414 4113 : FlowVolNeeded = TotalLoad / this->HeatExchangeEta / (CpBrine * DensityBrine * (TBrineIn - this->TEvapDesign));
15415 4113 : PartLdFrac = FlowVolNeeded / this->MaxVolFlow;
15416 : } else {
15417 3174 : PartLdFrac = TotalLoad / this->MaxLoad;
15418 : }
15419 7287 : if (this->PumpControlType == SecPumpCtrl::Constant) {
15420 4113 : VolFlowRate = 0.0;
15421 4113 : TotalPumpPower = 0.0;
15422 10022 : for (int PumpID = 1; PumpID <= this->NumPumps; ++PumpID) { // dispatch pumps to meet needed flow rate
15423 10022 : if (this->FluidType == SecFluidType::AlwaysLiquid) { //>>>>>>>>>>>>>>>>>>>>>
15424 10022 : VolFlowRate += this->PumpIncrementFlowVol;
15425 10022 : TotalPumpPower += this->PumpIncrementPower;
15426 10022 : if (VolFlowRate >= FlowVolNeeded) {
15427 4113 : break;
15428 : }
15429 : } else { // fluid type phase change >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
15430 0 : VolFlowRate += this->PumpIncrementFlowVol;
15431 0 : TotalPumpPower += this->PumpIncrementPower;
15432 0 : PartPumpFrac = TotalPumpPower / this->PumpTotRatedPower;
15433 0 : if (PartPumpFrac >= PartLdFrac) {
15434 0 : break;
15435 : }
15436 : } // fluid type >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
15437 : } // Dispatching pumps until fluid flow need is met
15438 : } else { // pump type variable
15439 3174 : VarFrac = max(0.1, Curve::CurveValue(state, this->VarSpeedCurvePtr, PartLdFrac));
15440 3174 : TotalPumpPower = this->PumpTotRatedPower * VarFrac;
15441 3174 : VolFlowRate = this->MaxVolFlow * PartLdFrac;
15442 : } // pump type
15443 :
15444 7287 : TotalLoad = RefrigerationLoad + distPipeHeatGain + receiverHeatGain + TotalPumpPower * this->PumpPowerToHeat;
15445 7287 : Error = std::abs((TotalLoad - PrevTotalLoad) / PrevTotalLoad);
15446 7287 : if (Error < ErrorTol) {
15447 4035 : break;
15448 : }
15449 : } // end iteration on pump energy convergence
15450 :
15451 : // IF (Iter >=10 .AND. .NOT. WarmupFlag)THEN
15452 : // If( .not. WarmupFlag) Then
15453 : // Write(OutputFileDebug,707)Month, DataGlobals::CurrentTime, Iter, TotalLoad, TotalPumpPower
15454 : // End If
15455 : // 707 format(' in iter loop at 707: ',1x,I2,1x,F5.2,1x,I5,7(F10.5,1x))
15456 : // END IF !didn't converge
15457 : } //(AtPartLoad)
15458 :
15459 : // If only loads are cases and walk-ins, that is, no air coils:
15460 : // Account for difference between load and capacity on secondary loop. Assume system able to provide
15461 : // rated capacity. If it can't, that unmet energy will be stored and discharged at the system level.
15462 : // Meet current load to the extent possible. If extra capacity available,
15463 : // apply it to previously unmet/stored loads. If capacity less than current load,
15464 : // (e.g. as it may be following defrost cycles on cases or walk-ins served by secondary loop)
15465 : // save the unmet/stored load to be met in succeeding time steps.
15466 4044 : if (this->NumCoils == 0) {
15467 4044 : StoredEnergyRate = max(0.0, (this->UnmetEnergy / state.dataGlobal->TimeStepZone / Constant::rSecsInHour));
15468 : // Load necessary to meet current and all stored energy needs (W)
15469 4044 : Real64 LoadRequested = TotalLoad + StoredEnergyRate;
15470 4044 : if (this->MaxLoad > LoadRequested) {
15471 : // Have at least as much capacity avail as needed, even counting stored energy
15472 4030 : this->TotalCoolingLoad = LoadRequested;
15473 4030 : RefrigerationLoad += StoredEnergyRate;
15474 4030 : this->UnmetEnergy = 0.0;
15475 : } else {
15476 : // Don't have as much capacity as needed (likely following defrost periods)
15477 14 : this->TotalCoolingLoad = this->MaxLoad;
15478 14 : RefrigerationLoad -= (TotalLoad - this->MaxLoad);
15479 14 : if (!state.dataGlobal->WarmupFlag) {
15480 14 : this->UnmetEnergy += ((TotalLoad - this->MaxLoad) * state.dataGlobal->TimeStepZoneSec);
15481 : }
15482 : } // load requested greater than MaxLoad
15483 4044 : if (this->UnmetEnergy > MyLargeNumber) {
15484 0 : this->UnmetEnergy = MyLargeNumber;
15485 0 : if (state.dataRefrigCase->ShowUnmetSecondEnergyWarning(SecondaryNum)) {
15486 0 : ShowWarningError(state, format("Secondary Refrigeration Loop: {}", this->Name));
15487 0 : ShowContinueError(state, " This secondary system has insufficient capacity to meet the refrigeration loads.");
15488 0 : state.dataRefrigCase->ShowUnmetSecondEnergyWarning(SecondaryNum) = false;
15489 : }
15490 : } //>my large number
15491 :
15492 : } else { // air coils on secondary loop, no "unmet" energy accounting, just reduce amount of cooling provided to zone by coils
15493 0 : DeRate = false;
15494 0 : if (TotalLoad > this->MaxLoad) {
15495 0 : DeRate = true;
15496 : }
15497 0 : FinalRateCoils(
15498 : state, DeRate, SourceType::SecondarySystem, SecondaryNum, TotalLoad, this->MaxLoad); // assign case credits for coils on this loop
15499 : // Bug TotalCoolingLoad not set but used below
15500 : } // no air coils on secondary loop
15501 4044 : this->PumpPowerTotal = TotalPumpPower;
15502 4044 : this->PumpElecEnergyTotal = TotalPumpPower * localTimeStepSec;
15503 4044 : this->TotalRefrigLoad = RefrigerationLoad;
15504 4044 : this->TotalRefrigEnergy = RefrigerationLoad * localTimeStepSec;
15505 4044 : this->TotalCoolingEnergy = TotalCoolingLoad * localTimeStepSec;
15506 4044 : this->FlowVolActual = VolFlowRate;
15507 4044 : this->HotDefrostCondCredit = TotalHotDefrostCondCredit;
15508 4044 : this->DistPipeHeatGain = distPipeHeatGain;
15509 4044 : this->DistPipeHeatGainEnergy = distPipeHeatGain * localTimeStepSec;
15510 4044 : this->ReceiverHeatGain = receiverHeatGain;
15511 4044 : this->ReceiverHeatGainEnergy = receiverHeatGain * localTimeStepSec;
15512 4044 : }
15513 :
15514 568465 : void SumZoneImpacts(EnergyPlusData &state)
15515 : {
15516 :
15517 : // SUBROUTINE INFORMATION:
15518 : // AUTHOR Therese Stovall, ORNL
15519 : // DATE WRITTEN Spring 2010
15520 : // RE-ENGINEERED na
15521 :
15522 : // PURPOSE OF THIS SUBROUTINE:
15523 : // Find the total impact of all refrigeration systems on each zone.
15524 :
15525 : // METHODOLOGY EMPLOYED:
15526 : // Calculate the energy from refrigerated case credits arising from interaction between the zone and:
15527 : // refrigerated cases and walk-ins
15528 : // heat rejection from zone-located compressor-racks and zone-located air-cooled condensers
15529 : // heat absorbed by suction piping, secondary loop distribution piping, and
15530 : // secondary receiver shells
15531 :
15532 568465 : auto &CoilSysCredit = state.dataRefrigCase->CoilSysCredit;
15533 568465 : auto &CaseWIZoneReport = state.dataRefrigCase->CaseWIZoneReport;
15534 :
15535 568465 : if (state.dataRefrigCase->UseSysTimeStep) { // air chillers
15536 5343825 : for (int ZoneNum = 1; ZoneNum <= state.dataGlobal->NumOfZones; ++ZoneNum) {
15537 4987570 : auto &credit = CoilSysCredit(ZoneNum);
15538 4987570 : credit.ReportH2ORemovedKgPerS_FromZoneRate = -credit.LatKgPerS_ToZoneRate;
15539 4987570 : credit.ReportLatCreditToZoneRate = -credit.LatCreditToZoneRate;
15540 4987570 : credit.ReportLatCreditToZoneEnergy = -credit.LatCreditToZoneEnergy;
15541 : // Sensible rate can be positive or negative, split into separate output variables and
15542 : // always report positive value
15543 4987570 : if (credit.SenCreditToZoneRate <= 0.0) {
15544 4588702 : credit.ReportSenCoolingToZoneRate = -credit.SenCreditToZoneRate;
15545 4588702 : credit.ReportSenCoolingToZoneEnergy = -credit.SenCreditToZoneEnergy;
15546 4588702 : credit.ReportHeatingToZoneRate = 0.0;
15547 4588702 : credit.ReportHeatingToZoneEnergy = 0.0;
15548 : } else {
15549 398868 : credit.ReportSenCoolingToZoneRate = 0.0;
15550 398868 : credit.ReportSenCoolingToZoneEnergy = 0.0;
15551 398868 : credit.ReportHeatingToZoneRate = credit.SenCreditToZoneRate;
15552 398868 : credit.ReportHeatingToZoneEnergy = -credit.SenCreditToZoneEnergy;
15553 : }
15554 4987570 : credit.ReportTotCoolingToZoneRate = credit.ReportLatCreditToZoneRate + credit.ReportSenCoolingToZoneRate;
15555 4987570 : credit.ReportTotCoolingToZoneEnergy = credit.ReportLatCreditToZoneEnergy + credit.ReportSenCoolingToZoneEnergy;
15556 : }
15557 : } // UseSysTimeStep signals run for air chillers
15558 :
15559 : // Can arrive here when load call to refrigeration looks for cases/walkin systems and usetimestep is .FALSE.
15560 780675 : if ((!state.dataRefrigCase->UseSysTimeStep) &&
15561 212210 : ((state.dataRefrigCase->NumSimulationCases > 0) || (state.dataRefrigCase->NumSimulationWalkIns > 0))) {
15562 5696574 : for (int ZoneNum = 1; ZoneNum <= state.dataGlobal->NumOfZones; ++ZoneNum) {
15563 5484364 : auto &report = CaseWIZoneReport(ZoneNum);
15564 5484364 : report.SenCaseCreditToZoneEnergy = state.dataHeatBal->RefrigCaseCredit(ZoneNum).SenCaseCreditToZone * state.dataGlobal->TimeStepZoneSec;
15565 : // Latent always negative
15566 5484364 : report.LatCoolingToZoneRate = -state.dataHeatBal->RefrigCaseCredit(ZoneNum).LatCaseCreditToZone;
15567 5484364 : report.LatCoolingToZoneEnergy = report.LatCoolingToZoneRate * state.dataGlobal->TimeStepZoneSec;
15568 : // Sensible rate can be positive or negative, split into separate output variables and
15569 : // always report positive value
15570 5484364 : if (state.dataHeatBal->RefrigCaseCredit(ZoneNum).SenCaseCreditToZone <= 0.0) {
15571 5422690 : report.SenCoolingToZoneRate = -state.dataHeatBal->RefrigCaseCredit(ZoneNum).SenCaseCreditToZone;
15572 5422690 : report.SenCoolingToZoneEnergy = -state.dataHeatBal->RefrigCaseCredit(ZoneNum).SenCaseCreditToZone * state.dataGlobal->TimeStepZoneSec;
15573 5422690 : report.HeatingToZoneRate = 0.0;
15574 5422690 : report.HeatingToZoneEnergy = 0.0;
15575 : } else {
15576 61674 : report.SenCoolingToZoneRate = 0.0;
15577 61674 : report.SenCoolingToZoneEnergy = 0.0;
15578 61674 : report.HeatingToZoneRate = state.dataHeatBal->RefrigCaseCredit(ZoneNum).SenCaseCreditToZone;
15579 61674 : report.HeatingToZoneEnergy = state.dataHeatBal->RefrigCaseCredit(ZoneNum).SenCaseCreditToZone * state.dataGlobal->TimeStepZoneSec;
15580 : }
15581 5484364 : report.TotCoolingToZoneRate = report.SenCoolingToZoneRate + report.LatCoolingToZoneRate;
15582 5484364 : report.TotCoolingToZoneEnergy = report.SenCoolingToZoneEnergy + report.LatCoolingToZoneEnergy;
15583 5484364 : report.TotHtXferToZoneRate =
15584 5484364 : state.dataHeatBal->RefrigCaseCredit(ZoneNum).SenCaseCreditToZone + state.dataHeatBal->RefrigCaseCredit(ZoneNum).LatCaseCreditToZone;
15585 5484364 : report.TotHtXferToZoneEnergy = report.TotHtXferToZoneRate * state.dataGlobal->TimeStepZoneSec;
15586 : } // over zones for cases and walkins
15587 : }
15588 568465 : }
15589 :
15590 3653619 : void CheckRefrigerationInput(EnergyPlusData &state)
15591 : {
15592 :
15593 : // SUBROUTINE INFORMATION:
15594 : // AUTHOR Linda Lawrie
15595 : // DATE WRITTEN Sep 2010 - mining function
15596 : // MODIFIED na
15597 : // RE-ENGINEERED na
15598 :
15599 : // PURPOSE OF THIS SUBROUTINE:
15600 : // Provides the structure to get Refrigeration input so that
15601 : // it can be called from internally or outside the module.
15602 :
15603 3653619 : if (state.dataRefrigCase->GetRefrigerationInputFlag) {
15604 :
15605 801 : GetRefrigerationInput(state);
15606 801 : SetupReportInput(state);
15607 801 : state.dataRefrigCase->GetRefrigerationInputFlag = false;
15608 :
15609 801 : if ((!state.dataRefrigCase->HaveCasesOrWalkins) && (!state.dataRefrigCase->HaveChillers)) {
15610 763 : state.dataRefrigCase->ManageRefrigeration = false;
15611 763 : return;
15612 : }
15613 38 : if ((!state.dataRefrigCase->HaveDetailedRefrig) && (!state.dataRefrigCase->HaveRefrigRacks) &&
15614 0 : (!state.dataRefrigCase->HaveDetailedTransRefrig)) {
15615 0 : state.dataRefrigCase->ManageRefrigeration = false;
15616 0 : return;
15617 : }
15618 : } // GetRefrigerationInputFlag
15619 : }
15620 :
15621 356260 : void SimAirChillerSet(EnergyPlusData &state,
15622 : std::string const &AirChillerSetName,
15623 : int const ZoneNum,
15624 : bool const FirstHVACIteration,
15625 : Real64 &SysOutputProvided,
15626 : Real64 &LatOutputProvided,
15627 : int &AirChillerSetPtr // from ZoneEquipList(CurZoneEqNum)%EquipIndex(EquipPtr)
15628 : )
15629 : {
15630 :
15631 : // SUBROUTINE INFORMATION:
15632 : // AUTHOR Therese Stovall, ORNL
15633 : // DATE WRITTEN January 2011
15634 : // MODIFIED na
15635 : // RE-ENGINEERED na
15636 :
15637 : // PURPOSE OF THIS SUBROUTINE:
15638 : // Transfers the load requested from the zone to the refrigeration module.
15639 : // The load is met, partially met, or not met in the call to the detailed system solution
15640 : // METHODOLOGY EMPLOYED:
15641 : // Called from Zone Equipment Manager.
15642 :
15643 356260 : auto &AirChillerSet = state.dataRefrigCase->AirChillerSet;
15644 356260 : auto &CoilSysCredit = state.dataRefrigCase->CoilSysCredit;
15645 :
15646 : int ChillerSetID;
15647 : Real64 RemainingOutputToCoolingSP; // Remaining requested load in zone
15648 :
15649 356260 : CheckRefrigerationInput(state);
15650 :
15651 : // Find the correct Chiller set
15652 356260 : if (AirChillerSetPtr == 0) {
15653 10 : ChillerSetID = Util::FindItemInList(AirChillerSetName, AirChillerSet);
15654 10 : if (ChillerSetID == 0) {
15655 0 : ShowFatalError(state, format("SimAirChillerSet: Unit not found={}", AirChillerSetName));
15656 : } // chillersetid ==0 because not in list
15657 10 : AirChillerSetPtr = ChillerSetID;
15658 : } else { // airchllersetpointer passed in call to subroutine not ==0
15659 356250 : ChillerSetID = AirChillerSetPtr;
15660 356250 : if (ChillerSetID > state.dataRefrigCase->NumRefrigChillerSets || ChillerSetID < 1) {
15661 0 : ShowFatalError(state,
15662 0 : format("SimAirChillerSet: Invalid AirChillerSetPtr passed={}, Number of Units={}, Entered Unit name={}",
15663 : ChillerSetID,
15664 0 : state.dataRefrigCase->NumRefrigChillerSets,
15665 : AirChillerSetName));
15666 : } // ChillerSetID makes no sense
15667 356250 : if (state.dataRefrigCase->CheckChillerSetName(ChillerSetID)) {
15668 10 : if (AirChillerSetName != AirChillerSet(ChillerSetID).Name) {
15669 0 : ShowFatalError(state,
15670 0 : format("SimAirChillerSet: Invalid AirChillerSetPtr passed={}, Unit name={}, stored Unit Name for that index={}",
15671 : ChillerSetID,
15672 : AirChillerSetName,
15673 0 : AirChillerSet(ChillerSetID).Name));
15674 : } // name not equal correct name
15675 10 : state.dataRefrigCase->CheckChillerSetName(ChillerSetID) = false;
15676 : } // CheckChillerSetName logical test
15677 : } //(AirChillerSetPtr == 0 or else not == 0
15678 :
15679 356260 : if (FirstHVACIteration) {
15680 1959760 : for (ChillerSetID = 1; ChillerSetID <= state.dataRefrigCase->NumRefrigChillerSets;
15681 : ++ChillerSetID) { // bbb what point of do loop, only set one (airchillersetptr) to zero
15682 1781600 : AirChillerSet(AirChillerSetPtr).QZnReqSens = 0.0;
15683 : }
15684 : } // FirstHVACIteration
15685 :
15686 356260 : RemainingOutputToCoolingSP = state.dataZoneEnergyDemand->ZoneSysEnergyDemand(ZoneNum).RemainingOutputReqToCoolSP;
15687 : // RemainingOutputToCoolingSP in Watts, < 0 for cooling demand
15688 :
15689 356260 : if (RemainingOutputToCoolingSP < 0.0 && state.dataHeatBalFanSys->TempControlType(ZoneNum) != HVAC::SetptType::SingleHeat) {
15690 291453 : AirChillerSet(AirChillerSetPtr).QZnReqSens = RemainingOutputToCoolingSP;
15691 : } else {
15692 64807 : AirChillerSet(AirChillerSetPtr).QZnReqSens = 0.0;
15693 : }
15694 :
15695 356260 : state.dataRefrigCase->UseSysTimeStep = true;
15696 :
15697 356260 : ManageRefrigeratedCaseRacks(state);
15698 :
15699 356260 : state.dataRefrigCase->UseSysTimeStep = false;
15700 :
15701 : // Return values to Zone Equipment Manager.
15702 356260 : LatOutputProvided = CoilSysCredit(ZoneNum).LatKgPerS_ToZoneRate;
15703 356260 : SysOutputProvided = CoilSysCredit(ZoneNum).SenCreditToZoneRate;
15704 356260 : }
15705 :
15706 3562550 : void AirChillerSetData::CalculateAirChillerSets(EnergyPlusData &state)
15707 : {
15708 :
15709 : // SUBROUTINE INFORMATION:
15710 : // AUTHOR Therese Stovall, ORNL
15711 : // DATE WRITTEN January 2011
15712 : // MODIFIED na
15713 : // RE-ENGINEERED na
15714 :
15715 : // PURPOSE OF THIS SUBROUTINE:
15716 : // Transfers the load requested from the zone to the refrigeration module.
15717 : // The load is met, partially met, or not met in the next time step when the refrigerated case
15718 : // module is called via case credits. Therefore, by definition, the sensible and latent
15719 : // output provided are zero.
15720 : // METHODOLOGY EMPLOYED:
15721 : // Called from Zone Equipment Manager.
15722 : // have however done the variable definitions for in and out.
15723 :
15724 3562550 : Real64 AirChillerSetSchedule = 0.0; // Schedule value for air chiller SET
15725 3562550 : Real64 QZNReqSens = 0.0; // Amount of sensible heat needed by the zone, NEGATIVE when cooling needed [W]
15726 3562550 : Real64 RemainQZNReqSens = 0.0; // Remaining amount of sensible heat needed by the zone [W]
15727 :
15728 3562550 : auto &WarehouseCoil = state.dataRefrigCase->WarehouseCoil;
15729 :
15730 : // Note, all coils in a coil set are in the same zone
15731 : // the coils may be served by different detailed systems
15732 : // The coils are dispatched to meet the load specified in the previous time step in order listed in coilset object
15733 3562550 : AirChillerSetSchedule = this->availSched->getCurrentVal();
15734 :
15735 3562550 : if (AirChillerSetSchedule <= 0.0) {
15736 0 : return;
15737 : }
15738 3562550 : QZNReqSens = this->QZnReqSens;
15739 3562550 : RemainQZNReqSens = QZNReqSens;
15740 :
15741 33131715 : for (int CoilIndex = 1; CoilIndex <= this->NumCoils; ++CoilIndex) {
15742 29569165 : int CoilID = this->CoilNum(CoilIndex);
15743 :
15744 29569165 : WarehouseCoil(CoilID).CalculateCoil(state, RemainQZNReqSens);
15745 29569165 : RemainQZNReqSens += WarehouseCoil(CoilID).SensCreditRate;
15746 : // should be a negative minus a negative, so a smaller negative, that is, going toward zero, but senscoolingenergyrate expressed as
15747 : // positive Need to go over all the coils so that the defrosts occur on schedule, even when the chiller isn't called for at that
15748 : // particular time step IF(RemainQZNReqSens >=0.0d0)EXIT !shouldn't be > 0 because limited by request in calculatecoil
15749 29569165 : if (RemainQZNReqSens > 0.0) {
15750 3690542 : RemainQZNReqSens = 0.0;
15751 : }
15752 : } // CoilIndex
15753 : }
15754 :
15755 90934 : void FinalRateCoils(EnergyPlusData &state,
15756 : bool const DeRate, // True if compressor rack or secondary ht exchanger unable to provide capacity
15757 : SourceType const SystemSourceType, // Secondarysystem or DetailedSystem
15758 : int const SystemID, // ID for Secondary loop or detailed system calling for derate
15759 : Real64 const InitialTotalLoad, // Load on system or secondary loop as initially calculated [W]
15760 : Real64 const AvailableTotalLoad // Load that system or secondary loop is able to serve [W]
15761 : )
15762 : {
15763 :
15764 : // SUBROUTINE INFORMATION:
15765 : // AUTHOR Therese Stovall, ORNL
15766 : // DATE WRITTEN January 2011
15767 : // MODIFIED na
15768 : // RE-ENGINEERED na
15769 :
15770 : // PURPOSE OF THIS SUBROUTINE:
15771 : // When compressor system, or secondary loop capacity is insufficient to meet coil loads
15772 : // Come back here and derate the coil case credits to show unmet load impact
15773 : // Note that the coil fan, heater, and defrost would be unaffected because they
15774 : // would still be running at level calculated previously
15775 :
15776 90934 : auto &System = state.dataRefrigCase->System;
15777 90934 : auto &WarehouseCoil = state.dataRefrigCase->WarehouseCoil;
15778 :
15779 90934 : int NumCoils = 0;
15780 90934 : Real64 DeRateFactor = 0.0; // Ratio of energy available from system or secondary loop
15781 90934 : Real64 InitLatCreditEnergy = 0.0; // Latent credit energy before derate [W]
15782 90934 : Real64 FrostReduction = 0.0; // Change in frost on coils based on derated latent load [kg]
15783 :
15784 : {
15785 90934 : switch (SystemSourceType) {
15786 90934 : case SourceType::DetailedSystem:
15787 90934 : NumCoils = System(SystemID).NumCoils;
15788 90934 : break;
15789 0 : case SourceType::SecondarySystem:
15790 0 : NumCoils = state.dataRefrigCase->Secondary(SystemID).NumCoils;
15791 0 : break;
15792 0 : default:
15793 0 : assert(false);
15794 : }
15795 : } // DeRateCoils
15796 :
15797 90934 : if (DeRate) {
15798 636538 : ShowRecurringWarningErrorAtEnd(
15799 : state,
15800 181868 : "Refrigeration:System chilling WarehouseCoils " + System(SystemID).Name +
15801 : " - Refrigeration system unable to meet load of warehouse coils chilled by system ... continues by derating coil load",
15802 90934 : System(SystemID).InsuffCapWarn);
15803 :
15804 90934 : DeRateFactor = AvailableTotalLoad / InitialTotalLoad;
15805 90934 : Real64 const time_step_sec(state.dataHVACGlobal->TimeStepSysSec);
15806 1127963 : for (int CoilIndex = 1; CoilIndex <= NumCoils; ++CoilIndex) {
15807 1037029 : int CoilID = System(SystemID).CoilNum(CoilIndex);
15808 1037029 : auto &warehouse_coil = WarehouseCoil(CoilID);
15809 :
15810 : // need to adjust ice on coil due to reduction in latent load met by coil
15811 1037029 : InitLatCreditEnergy = warehouse_coil.LatCreditEnergy;
15812 :
15813 1037029 : warehouse_coil.TotalCoolingLoad *= DeRateFactor;
15814 1037029 : warehouse_coil.TotalCoolingEnergy *= DeRateFactor;
15815 1037029 : warehouse_coil.SensCoolingEnergyRate *= DeRateFactor;
15816 1037029 : warehouse_coil.SensCoolingEnergy *= DeRateFactor;
15817 1037029 : warehouse_coil.LatCreditRate *= DeRateFactor;
15818 1037029 : warehouse_coil.LatCreditEnergy *= DeRateFactor;
15819 1037029 : warehouse_coil.LatKgPerS_ToZone *= DeRateFactor;
15820 1037029 : warehouse_coil.SensCreditRate = warehouse_coil.SensCoolingEnergyRate - warehouse_coil.ElecFanPower - warehouse_coil.ElecHeaterPower -
15821 1037029 : warehouse_coil.ThermalDefrostPower;
15822 1037029 : warehouse_coil.SensCreditEnergy = warehouse_coil.SensCreditRate * time_step_sec;
15823 :
15824 1037029 : FrostReduction = (InitLatCreditEnergy - warehouse_coil.LatCreditEnergy) / IcetoVaporEnthalpy;
15825 1037029 : warehouse_coil.KgFrost = max(0.0, warehouse_coil.KgFrost - FrostReduction);
15826 :
15827 1037029 : if (warehouse_coil.SensCreditRate >= 0.0) {
15828 825527 : warehouse_coil.ReportSensCoolCreditRate = warehouse_coil.SensCreditRate;
15829 825527 : warehouse_coil.ReportHeatingCreditRate = 0.0;
15830 : } else {
15831 211502 : warehouse_coil.ReportSensCoolCreditRate = 0.0;
15832 211502 : warehouse_coil.ReportHeatingCreditRate = -warehouse_coil.SensCreditRate;
15833 : }
15834 1037029 : warehouse_coil.ReportSensCoolCreditEnergy = warehouse_coil.ReportSensCoolCreditRate * time_step_sec;
15835 1037029 : warehouse_coil.ReportHeatingCreditEnergy = warehouse_coil.ReportHeatingCreditRate * time_step_sec;
15836 1037029 : warehouse_coil.ReportTotalCoolCreditRate = warehouse_coil.ReportSensCoolCreditRate + warehouse_coil.LatCreditRate;
15837 1037029 : warehouse_coil.ReportTotalCoolCreditEnergy = warehouse_coil.ReportSensCoolCreditEnergy + warehouse_coil.LatCreditEnergy;
15838 : }
15839 : } // DeRate == true
15840 90934 : }
15841 :
15842 29569165 : void WarehouseCoilData::CalculateCoil(EnergyPlusData &state, Real64 const QZnReq)
15843 : {
15844 :
15845 : // SUBROUTINE INFORMATION:
15846 : // AUTHOR Therese Stovall, ORNL
15847 : // DATE WRITTEN January 2011
15848 : // MODIFIED na
15849 : // RE-ENGINEERED na
15850 :
15851 : // PURPOSE OF THIS SUBROUTINE:
15852 : // Simulates the refrigerated warehouse coil object.
15853 : // Note QZnReq < 0 corresponds to cooling needed
15854 :
15855 : // METHODOLOGY EMPLOYED:
15856 : // Called from Calculate Air Chiller Set.
15857 : // Air chillers are used to model the type of equipment typically used in
15858 : // refrigerated warehouses. For that reason, there is a major difference
15859 : // between the air chiller model and those for refrigerated cases or walk-ins.
15860 : // For cases and walk-ins, a portion of the model is directed toward
15861 : // calculating the amount of refrigeration needed to maintain the refrigerated
15862 : // volume at the desired temperature due to heat exchange with the surrounding
15863 : // zone, and that zone is conditioned to a nearly constant temperature.
15864 : // In a refrigerated warehouse, the refrigeration load is caused by heat exchange
15865 : // with a variable external environment. For that reason, the loads for these
15866 : // zones are calculated by the usual EnergyPlus zone heat balance.
15867 : // The amount of refrigeration needed to maintain the specified temperature
15868 : // setpoints is then passed to the air chiller model, in a similar fashion
15869 : // to the load passed to a window air conditioner model. The air chillers
15870 : // are therefore solved using the system time step, not the zone time step
15871 : // used for cases and walk-ins.
15872 : // The air chiller performance is based on three types of manufacturers ratings,
15873 : // Unit Load Factor, Total Capacity Map, or a set of European standards.
15874 : // Correction factors for material and refrigerant are applied to all of these ratings.
15875 :
15876 : static constexpr std::string_view TrackMessage("from RefrigeratedCase:CalculateCoil");
15877 :
15878 29569165 : Real64 CoilSchedule = this->availSched->getCurrentVal(); // Current value of Coil operating (availability) schedule
15879 29569165 : if (CoilSchedule <= 0.0) {
15880 7891456 : return;
15881 : }
15882 :
15883 21677709 : Real64 DefrostSchedule = this->defrostSched->getCurrentVal(); // Coil defrost schedule, between 0 and 1
15884 21677709 : Real64 DefrostDripDownSchedule = this->defrostDripDownSched->getCurrentVal(); // Coil drip-down schedule (allows coil to drain after defrost)
15885 : // next statement In case user doesn't understand concept of drip down schedule
15886 21677709 : DefrostDripDownSchedule = max(DefrostDripDownSchedule, DefrostSchedule);
15887 : // next value optional, so set to default before checking for schedule
15888 21677709 : Real64 HeaterSchedule = 1.0; // zero to one
15889 21677709 : if (this->heaterAvailSched != nullptr) {
15890 21677709 : HeaterSchedule = this->heaterAvailSched->getCurrentVal();
15891 : }
15892 :
15893 : // Set local subroutine variables for convenience
15894 21677709 : FanSpeedCtrlType FanSpeedControlType = this->FanType;
15895 21677709 : Real64 AirVolumeFlowRated = this->RatedAirVolumeFlow; // Coil rated air flow (m3/s)
15896 21677709 : Real64 FanPowerRated = this->RatedFanPower; // (W)
15897 21677709 : Real64 HeaterLoad = this->HeaterPower * HeaterSchedule; // Total heater (except defrost) energy rate (W)
15898 21677709 : Real64 DefrostCap = this->DefrostCapacity; // Design defrost capacity of Coil (W)
15899 21677709 : Real64 TEvap = this->TEvapDesign; // Evaporating temperature in the coil (C)
15900 :
15901 21677709 : Real64 CoilCapTotEstimate(0.0); // Part of loop to solve for total coil capacity as a function of inlet air conditions (W)
15902 21677709 : Real64 AirVolumeFlowMax(0.0); // Coil air flow limited by drip down schedule (m3/s)
15903 21677709 : Real64 CoilCapTotal(0.0); // Sensible plus latent load (W)
15904 21677709 : Real64 CoilInletDensity(0.0); // Coil air inlet density (kg/m3)
15905 21677709 : Real64 CoilInletDryAirCp(0.0); // Dry air specific heat at coil inlet temperature (J/kg-C)
15906 21677709 : Real64 CoilInletHumRatio(0.0); // Coil air inlet humidity ratio (kg water/kg air)
15907 21677709 : Real64 CoilInletTemp(0.0); // Inlet temperature of air to coil, not mixed zone temperature unless "middle" location selected (C)
15908 21677709 : Real64 CoilInletEnthalpy(0.0); // Coil inlet air enthalpy (J/kg)
15909 21677709 : Real64 CoilInletRHFrac(0.0); // Coil inlet air relative humidity expressed as a fraction (0 to 1)
15910 21677709 : Real64 DefrostLoad(0.0);
15911 21677709 : Real64 DryAirMassFlowMax(0.0); // Rated volume flow rate times dry air density adjusted for schedules (kg/s)
15912 21677709 : Real64 FanPowerActual(0.0); // (W)
15913 21677709 : Real64 FrostChangekg(0.0); // Amount of frost added or melted (kg)
15914 21677709 : Real64 latLoadServed(0.0); // Energy rate used to remove water from zone air (W)
15915 21677709 : Real64 SensLoadRequestedGross(0.0); // Gross sensible load removed by coil
15916 21677709 : Real64 SensLoadGross(0.0); // Sensible load met by coil (W)
15917 21677709 : Real64 SHR(0.0); // Sensible heat ratio, sensible load/total load
15918 21677709 : Real64 SHRCorrection(0.0); // Actual total/sensible load, NOT = Inverse SHR (unless coil efficiency = 1.0)
15919 21677709 : Real64 WaterRemovRate(0.0); // Walk in cooler removes water at this rate in this zone (kg/s)
15920 :
15921 21677709 : if (DefrostDripDownSchedule == 1.0) {
15922 2261960 : AirVolumeFlowMax = 0.0;
15923 2261960 : DryAirMassFlowMax = 0.0;
15924 : } else { // DefrostDripDownSchedule < 1.0d0, cooling will occur at least part of the time step
15925 : // Sensible load requested by zone balance (W)
15926 19415749 : Real64 SensLoadRequested = -QZnReq; // here let cooling demand be positive within subroutine
15927 19415749 : if (SensLoadRequested <= 0.0) { // No load so assume control keeps off, except that scheduled defrost still occurs
15928 9889889 : AirVolumeFlowMax = 0.0;
15929 9889889 : DryAirMassFlowMax = 0.0;
15930 : } else {
15931 9525860 : SensLoadRequestedGross = SensLoadRequested + HeaterLoad + FanPowerRated;
15932 9525860 : Real64 ZoneMixedAirDryBulb = state.dataLoopNodes->Node(this->ZoneNodeNum).Temp; // (C)
15933 9525860 : Real64 ZoneMixedAirHumRatio = state.dataLoopNodes->Node(this->ZoneNodeNum).HumRat; // kg water/kg air in the zone mixed air
15934 : Real64 ZoneMixedAirRHFrac =
15935 9525860 : Psychrometrics::PsyRhFnTdbWPb(state, ZoneMixedAirDryBulb, ZoneMixedAirHumRatio, state.dataEnvrn->OutBaroPress, TrackMessage);
15936 : Real64 ZoneMixedAirEnthalpy =
15937 9525860 : Psychrometrics::PsyHFnTdbRhPb(state, ZoneMixedAirDryBulb, ZoneMixedAirRHFrac, state.dataEnvrn->OutBaroPress, TrackMessage);
15938 : Real64 ZoneMixedAirDensity =
15939 9525860 : Psychrometrics::PsyRhoAirFnPbTdbW(state, state.dataEnvrn->OutBaroPress, ZoneMixedAirDryBulb, ZoneMixedAirHumRatio, TrackMessage);
15940 : Real64 ZoneDryAirDensity =
15941 9525860 : Psychrometrics::PsyRhoAirFnPbTdbW(state, state.dataEnvrn->OutBaroPress, ZoneMixedAirDryBulb, 0.0, TrackMessage);
15942 9525860 : Real64 DryAirMassFlowRated = AirVolumeFlowRated * ZoneDryAirDensity;
15943 : // calc t inlet to coil assuming at middle/mixed point in room bbb -
15944 : // later need to do for hottest/coolest in room where Tin /= Tzonemixed
15945 : // calc RH inlet to coil assuming at middle/mixed point in room
15946 : // calc coilcap, sens and latent, available as f(inlet T,RH)
15947 9525860 : switch (this->VerticalLocation) {
15948 9525860 : case VerticalLoc::Floor:
15949 : // purposely fall through
15950 : case VerticalLoc::Ceiling:
15951 : // purposely fall through
15952 : case VerticalLoc::Middle:
15953 9525860 : CoilInletTemp = ZoneMixedAirDryBulb;
15954 9525860 : CoilInletEnthalpy = ZoneMixedAirEnthalpy;
15955 9525860 : CoilInletRHFrac = ZoneMixedAirRHFrac;
15956 9525860 : CoilInletDensity = ZoneMixedAirDensity;
15957 9525860 : CoilInletHumRatio = ZoneMixedAirHumRatio;
15958 9525860 : CoilInletDryAirCp = Psychrometrics::PsyCpAirFnW(0.0);
15959 9525860 : break;
15960 0 : default:
15961 0 : assert(false);
15962 : }
15963 9525860 : AirVolumeFlowMax = AirVolumeFlowRated * (1.0 - DefrostDripDownSchedule) * CoilSchedule;
15964 9525860 : DryAirMassFlowMax = DryAirMassFlowRated * (1.0 - DefrostDripDownSchedule) * CoilSchedule;
15965 :
15966 : } // Sens load requested is non-zero
15967 : } // DefrostDripDownSchedule == 1.0d0
15968 :
15969 21677709 : if (AirVolumeFlowMax > 0.0) {
15970 :
15971 : Real64 TemperatureDif =
15972 9525860 : min(this->MaxTemperatureDif, (CoilInletTemp - TEvap)); // difference between inlet air and evaporating temperature (deltaC)
15973 :
15974 9525860 : if (this->ratingType == RatingType::RatedCapacityTotal) {
15975 : // RatingType = CapacityTotalSpecificConditions, will be doing a table lookup
15976 : // based upon RHInlet, DT1, CoilInletTemperature - see excel files from B. Nelson, CoilCom
15977 : // In the table, X1== inlet air dry bulb temperature
15978 : // X2== Difference between inlet T and evap T
15979 : // X3== RH expressed as decimal
15980 344255 : CoilCapTotEstimate = Curve::CurveValue(state, this->SHRCorrectionCurvePtr, CoilInletTemp, TemperatureDif, CoilInletRHFrac) *
15981 344255 : this->RatedCapTotal * (1.0 - DefrostDripDownSchedule) * CoilSchedule;
15982 :
15983 : } else { // work with unit load factor (sensible only), function of DT1 (Tair in drybulb-Tevap)
15984 9181605 : Real64 SensibleCapacityMax = this->UnitLoadFactorSens * TemperatureDif * (1.0 - DefrostDripDownSchedule) *
15985 : CoilSchedule; // Sensible capacity adjusted for any time in dripdown state (W)
15986 :
15987 9181605 : if (SensibleCapacityMax > 0.0) {
15988 9155685 : Real64 ExitTemperatureEstimate =
15989 9155685 : CoilInletTemp - (SensibleCapacityMax / (DryAirMassFlowMax * CoilInletDryAirCp)); // Estimated Air temperature leaving the coil (C)
15990 9155685 : if (ExitTemperatureEstimate <= TEvap) {
15991 0 : ShowWarningError(state, format("{}Refrigeration:AirCoil: {}", TrackMessage, this->Name));
15992 0 : ShowContinueError(state, " The estimated air outlet temperature is less than the evaporating temperature.");
15993 : }
15994 9155685 : Real64 ExitEnthalpyEstimate = Psychrometrics::PsyHFnTdbRhPb(state,
15995 : ExitTemperatureEstimate,
15996 : 1.0,
15997 9155685 : state.dataEnvrn->OutBaroPress,
15998 : TrackMessage); // Estimated Air enthalpy leaving the coil (J/kg)
15999 9155685 : if (ExitEnthalpyEstimate <= CoilInletEnthalpy) {
16000 6290134 : CoilCapTotEstimate = (CoilInletEnthalpy - ExitEnthalpyEstimate) * AirVolumeFlowMax * CoilInletDensity;
16001 : } else {
16002 : // Assume no water is extracted from flow
16003 2865551 : ExitEnthalpyEstimate = Psychrometrics::PsyHFnTdbW(ExitTemperatureEstimate, CoilInletHumRatio);
16004 2865551 : CoilCapTotEstimate = (CoilInletEnthalpy - ExitEnthalpyEstimate) * AirVolumeFlowMax * CoilInletDensity;
16005 : }
16006 9155685 : if (SensibleCapacityMax > CoilCapTotEstimate) {
16007 889620 : SensibleCapacityMax = CoilCapTotEstimate;
16008 : }
16009 9155685 : if (std::abs(CoilCapTotEstimate) > 0.0) {
16010 9155445 : SHR = SensibleCapacityMax / (CoilCapTotEstimate);
16011 : } else {
16012 : // will occur whenever defrost or dripdown
16013 240 : SHR = 0.0;
16014 : }
16015 :
16016 9155685 : switch (this->SHRCorrType) {
16017 8978370 : case SHRCorrectionType::SHR60: {
16018 : // line from y = SHRCorrection60 value to 1. as x(SHR) goes from .6 to 1, from B. Nelson, ASHRAE August 2010
16019 8978370 : Real64 Slope = (this->SHRCorrection60 - 1.0) / (0.6 - 1.0); // Part of linear SHR60 correction factor, dimensionless
16020 8978370 : Real64 Yint = this->SHRCorrection60 - (Slope * 0.6); // Part of linear SHR60 correction factor, dimensionless
16021 8978370 : SHRCorrection = Slope * SHR + Yint;
16022 8978370 : } break;
16023 0 : case SHRCorrectionType::QuadraticSHR: {
16024 0 : SHRCorrection = Curve::CurveValue(state, this->SHRCorrectionCurvePtr, SHR);
16025 0 : } break;
16026 177315 : case SHRCorrectionType::European: {
16027 : // With European ratings, either start with rated total sensible capacity or rated total capacity
16028 : // If rated total capacity is used, 'get input'
16029 : // translated it to rated total sensible capacity using
16030 : // PARAMETER ::EuropeanWetCoilFactor = (/1.35D0, 1.15D0, 1.05D0, 1.01D0, 1.0D0/)
16031 : // That sensible capacity rating was then turned to a rated UnitLoadFactor using
16032 : // the rated temperature difference. That sensible rating was also corrected
16033 : // for refrigerant and fin material in 'get input' and is given as UnitLoadFactor
16034 : // The total (sens + latent) capacity is equal to that * DT1 * WetCoilFactor(TcoilIn)
16035 : // Sensible capacity max already has DT1, just need WetCoilFactor(TcoilIn)
16036 : // PARAMETER ::EuropeanWetCoilFactor = (/1.35D0, 1.15D0, 1.05D0, 1.01D0, 1.0D0/)
16037 : // PARAMETER ::EuropeanAirInletTemp = (/10.0D0, 0.0D0, -18.0D0, -25.0D0, -34.0D0/)
16038 : // PARAMETER ::EuropeanEvapTemp = (/ 0.0D0, -8.0D0, -25.0D0, -31.0D0, -40.0D0/)
16039 : // PARAMETER ::EuropeanDT1 = (/10.0D0, 8.0D0, 7.0D0, 7.0D0, 6.0D0/)
16040 177315 : if (CoilInletTemp <= -25.0) {
16041 0 : SHRCorrection = 1.0;
16042 177315 : } else if (CoilInletTemp > -25.0 && CoilInletTemp <= 0.0) {
16043 133720 : SHRCorrection = (EuropeanWetCoilFactor[1] - EuropeanWetCoilFactor[3]) / (EuropeanAirInletTemp[1] - EuropeanAirInletTemp[3]) *
16044 267440 : (EuropeanAirInletTemp[1] - CoilInletTemp) +
16045 133720 : EuropeanWetCoilFactor[3];
16046 43595 : } else if (CoilInletTemp > 0.0 && CoilInletTemp <= 5.0) {
16047 10040 : SHRCorrection = (EuropeanWetCoilFactor[0] - EuropeanWetCoilFactor[1]) / (EuropeanAirInletTemp[0] - EuropeanAirInletTemp[1]) *
16048 20080 : (EuropeanAirInletTemp[0] - CoilInletTemp) +
16049 10040 : EuropeanWetCoilFactor[1];
16050 33555 : } else if (CoilInletTemp > 5.0) {
16051 33555 : SHRCorrection = EuropeanWetCoilFactor[0];
16052 : } // calc correction as a function of coil inlet temperature
16053 177315 : } break;
16054 0 : default:
16055 0 : break;
16056 : }
16057 9155685 : CoilCapTotEstimate = SHRCorrection * SensibleCapacityMax;
16058 : } else { // NOT (SensibleCapacityMax > 0.0d0)
16059 25920 : CoilCapTotEstimate = 0.0;
16060 : } // (SensibleCapacityMax > 0.0d0)
16061 : } // Rating type : CapacityTotalSpecificConditions or Sensible Unit Load Factor
16062 :
16063 9525860 : if (CoilCapTotEstimate > 0.0) {
16064 9499460 : Real64 ExitEnthalpy =
16065 9499460 : CoilInletEnthalpy - (CoilCapTotEstimate / (AirVolumeFlowMax * CoilInletDensity)); // Air enthalpy leaving the coil (J/kg)
16066 9499460 : Real64 ExitTemperature = Psychrometrics::PsyTsatFnHPb(
16067 9499460 : state, ExitEnthalpy, state.dataEnvrn->OutBaroPress, TrackMessage); // RH =1.0 at Tsat // Air temperature leaving the coil (C)
16068 9499460 : Real64 ExitHumRatio = Psychrometrics::PsyWFnTdbH(state, ExitTemperature, ExitEnthalpy, TrackMessage); // kg water/kg air
16069 9499460 : if (ExitHumRatio > CoilInletHumRatio) {
16070 3801648 : ExitHumRatio = CoilInletHumRatio;
16071 : }
16072 9499460 : WaterRemovRate = DryAirMassFlowMax * (CoilInletHumRatio - ExitHumRatio);
16073 9499460 : latLoadServed = WaterRemovRate * IcetoVaporEnthalpy;
16074 9499460 : SensLoadGross = CoilCapTotEstimate - latLoadServed;
16075 9499460 : FanPowerActual = FanPowerRated;
16076 9499460 : if (SensLoadGross < 0.0) {
16077 : // Could rarely happen during initial cooldown of a warm environment
16078 58 : SensLoadGross = 0.0;
16079 58 : latLoadServed = CoilCapTotEstimate;
16080 58 : WaterRemovRate = latLoadServed / IcetoVaporEnthalpy;
16081 : } // SensLoadGross < 0
16082 : } else { // NOT (SensibleCapacityMax > 0.0d0)
16083 26400 : WaterRemovRate = 0.0;
16084 26400 : latLoadServed = 0.0;
16085 26400 : SensLoadGross = 0.0;
16086 26400 : FanPowerActual = 0.0;
16087 : } //(CoilCapTotEstimate > 0.0d0)
16088 :
16089 9525860 : Real64 FanPowerMax = FanPowerRated * (1.0 - DefrostDripDownSchedule); // Total fan energy rate, limited by dripdown period (W)
16090 9525860 : if (SensLoadGross > SensLoadRequestedGross) { // part load operation
16091 : // don't need full chiller power, reduce fan speed to reduce air flow
16092 : // move fan to part power if need to
16093 3709785 : Real64 CapFac = SensLoadRequestedGross / SensLoadGross; // used to reduce fan power when don't need full coil capacity
16094 3709785 : Real64 AirVolRatio = max(this->FanMinAirFlowRatio, std::pow(CapFac, EvaporatorAirVolExponent)); // used when operating at part load
16095 : // Fans limited by minimum air flow ratio
16096 :
16097 3709785 : switch (FanSpeedControlType) {
16098 0 : case FanSpeedCtrlType::VariableSpeed: { // fan power law, adjusted for reality, applies
16099 0 : Real64 FanPowerRatio = std::pow(AirVolRatio, 2.5); // Used for variable speed fans, dimensionless
16100 0 : FanPowerActual = FanPowerRatio * FanPowerMax;
16101 0 : } break;
16102 3709785 : case FanSpeedCtrlType::ConstantSpeed: {
16103 3709785 : FanPowerActual = AirVolRatio * std::exp(1.0 - AirVolRatio) * FanPowerMax;
16104 3709785 : } break;
16105 0 : case FanSpeedCtrlType::ConstantSpeedLinear: { // e.g., on-off control
16106 0 : FanPowerActual = AirVolRatio * FanPowerMax;
16107 0 : } break;
16108 0 : case FanSpeedCtrlType::TwoSpeed: {
16109 : // low speed setting of 1/2 fan speed can give up to 60% of capacity.
16110 : // 1/2 speed corresponds to ~1/8 power consumption (FanHalfSpeedRatio = 1/(2**2.5) = 0.1768)
16111 : // dampers are used to control flow within those two ranges as in FanConstantSpeed
16112 0 : if (CapFac < CapFac60Percent) {
16113 0 : FanPowerActual = ((AirVolRatio + 0.4) * (FanHalfSpeedRatio)) * std::exp(1.0 - AirVolRatio) * FanPowerMax;
16114 : } else {
16115 0 : FanPowerActual = AirVolRatio * std::exp(1.0 - AirVolRatio) * FanPowerMax;
16116 : } // capfac60percent
16117 0 : } break;
16118 0 : default:
16119 0 : break;
16120 : } // fan speed control type
16121 :
16122 : // reduce latent capacity according to value called for for sensible - recalc latent.
16123 : // recalc coilcaptotal
16124 3709785 : WaterRemovRate *= AirVolRatio;
16125 3709785 : latLoadServed = WaterRemovRate * IcetoVaporEnthalpy;
16126 3709785 : SensLoadGross = SensLoadRequestedGross;
16127 : } else { // at full load
16128 5816075 : FanPowerActual = FanPowerMax;
16129 : } // part load and sensload served > 0.
16130 :
16131 9525860 : CoilCapTotal = SensLoadGross + latLoadServed;
16132 9525860 : if (CoilCapTotal > 0.0) {
16133 9499460 : SHR = SensLoadGross / CoilCapTotal;
16134 : } else {
16135 26400 : SHR = 0.0;
16136 : } //(CoilCapTotal > 0.0d0)
16137 :
16138 : // now handle ice on coil and defrost because defrost energy not into melting ice goes into sensible load
16139 : // FROST: keep track of frost build up on evaporator coil
16140 : // avoid accumulation during warm-up to avoid reverse dd test problem
16141 9525860 : if (!state.dataGlobal->WarmupFlag) {
16142 466527 : FrostChangekg = (WaterRemovRate * state.dataHVACGlobal->TimeStepSysSec);
16143 466527 : this->KgFrost += FrostChangekg;
16144 : }
16145 :
16146 : } else { // NOT (AirVolumeFlowMax > 0.0d0)
16147 12151849 : WaterRemovRate = 0.0;
16148 12151849 : latLoadServed = 0.0;
16149 12151849 : SensLoadGross = 0.0;
16150 12151849 : FanPowerActual = 0.0;
16151 : } //(AirVolumeFlowMax > 0.0d0)
16152 :
16153 : // DEFROST CALCULATIONS ***** need to reduce sensible heat to zone from
16154 : // defrost by amount used to melt ice. Last two elements
16155 : // in starting IF are there to mimic temperature override
16156 : // on the coils that stops defrost if the coils get above
16157 : // a certain temperature (such as when there's no load and no ice)
16158 21677709 : if ((DefrostSchedule > 0.0) && (this->defrostType != DefrostType::None) && (this->defrostType != DefrostType::OffCycle)) {
16159 2694120 : DefrostLoad = DefrostCap * DefrostSchedule; // Part of the defrost that is a heat load on the zone (W)
16160 2694120 : Real64 DefrostEnergy = DefrostLoad * state.dataHVACGlobal->TimeStepSysSec; // Joules
16161 2694120 : Real64 StartFrostKg = this->KgFrost; // frost load at start of time step (kg of ice)
16162 :
16163 2694120 : if (this->DefrostControlType == DefrostCtrlType::TempTerm) {
16164 : // Need to turn defrost system off early if controlled by temperature and all ice melted
16165 : // For temperature termination, need to recognize not all defrost heat goes to melt ice
16166 : // Some goes to misc losses (for fluid defrost, some coil areas bare earlier than
16167 : // others and xfer heat to environment)
16168 : // Assume full ice melting satisfies temperature control.
16169 : // (defaults for DefEnergyFraction are :=0.7 for elec, =0.3 for fluids)
16170 19940 : Real64 AvailDefrostEnergy = this->DefEnergyFraction * DefrostEnergy; // available to melt ice with temp term control (J)
16171 19940 : Real64 IceSensHeatNeeded = 0.0; // Energy to raise frost temperature to 0C, used w/ temp termination (J)
16172 19940 : if (StartFrostKg > 0.0) {
16173 180 : if (this->IceTemp < 0.0) {
16174 160 : Real64 StartIceTemp = this->IceTemp; // Frost temperature at start of time step [C]
16175 160 : IceSensHeatNeeded = StartFrostKg * SpecificHeatIce * (0.0 - StartIceTemp); // Joules
16176 160 : if (AvailDefrostEnergy >= IceSensHeatNeeded) {
16177 160 : this->IceTemp = 0.0;
16178 160 : AvailDefrostEnergy -= IceSensHeatNeeded; // Joules
16179 : } else { // DefrostEnergy < IceSensHeatNeeded
16180 0 : this->IceTemp = StartIceTemp + AvailDefrostEnergy / (SpecificHeatIce * StartFrostKg);
16181 0 : AvailDefrostEnergy = 0.0;
16182 : } // AvailDefrostEnergy >= IceSensHeatNeeded
16183 : } // IceTemp < 0, need to raise temperature of ice
16184 : // Reduce defrost heat load on walkin by amount of ice melted during time step
16185 180 : FrostChangekg = min(AvailDefrostEnergy / IceMeltEnthalpy, StartFrostKg);
16186 180 : if (FrostChangekg < StartFrostKg) {
16187 20 : DefrostLoad -= FrostChangekg * IceMeltEnthalpy / state.dataHVACGlobal->TimeStepSys / Constant::rSecsInHour;
16188 20 : if (!state.dataGlobal->WarmupFlag) {
16189 20 : this->KgFrost = StartFrostKg - FrostChangekg;
16190 : }
16191 : // DefrostSchedule not changed because ice not all melted, temp term not triggered
16192 : } else { // all frost melted during time step, so need to terminate defrost
16193 : // see Aug 8 2010 page 3 notes
16194 160 : this->KgFrost = 0.0;
16195 160 : Real64 DefrostEnergyNeeded = (IceSensHeatNeeded + (FrostChangekg * IceMeltEnthalpy)) /
16196 160 : this->DefEnergyFraction; // Joules - energy needed including E unavail to melt ice
16197 160 : DefrostSchedule = min(DefrostSchedule, (DefrostEnergyNeeded / (DefrostCap * state.dataHVACGlobal->TimeStepSysSec)));
16198 : // reduce heat load on warehouse by energy put into ice melting
16199 : // Defrost load that actually goes to melting ice (W)
16200 160 : Real64 DefrostRateNeeded = (IceSensHeatNeeded + (FrostChangekg * IceMeltEnthalpy)) / (state.dataHVACGlobal->TimeStepSysSec);
16201 160 : DefrostLoad = max(0.0, (DefrostSchedule * DefrostCap - DefrostRateNeeded));
16202 160 : this->IceTemp = this->TEvapDesign;
16203 : } // frost melted during time step less than amount of ice at start
16204 : } else {
16205 : // no frost present so terminate defrost and reset ice temperature for start of next defrost
16206 : // However, dripdown schedule still prevents/limits cooling capacity during time step
16207 19760 : DefrostLoad = 0.0;
16208 19760 : DefrostSchedule = 0.0;
16209 19760 : this->IceTemp = this->TEvapDesign;
16210 : } // have frost present
16211 :
16212 : } else {
16213 : // Not temperature control type, controlled only by schedule
16214 : // Reduce defrost heat load on the zone by amount of ice melted during time step
16215 : // But DefrostSchedule not changed
16216 2674180 : FrostChangekg = max(0.0, min((DefrostEnergy / IceMeltEnthalpy), StartFrostKg));
16217 2674180 : DefrostLoad -= FrostChangekg * IceMeltEnthalpy / state.dataHVACGlobal->TimeStepSys / Constant::rSecsInHour;
16218 2674180 : if (!state.dataGlobal->WarmupFlag) {
16219 157600 : this->KgFrost = StartFrostKg - FrostChangekg;
16220 : }
16221 : } // Temperature termination vs. time-clock control type
16222 :
16223 2694120 : } else { // DefrostSchedule <= 0 or have None or OffCycle
16224 18983589 : DefrostLoad = 0.0;
16225 : } // Defrost calculations
16226 :
16227 21677709 : Real64 SensLoadFromZone = SensLoadGross - HeaterLoad - DefrostLoad -
16228 : FanPowerActual; // Net sensible load removed from zone after accounting for heaters, fans, defrost [W]
16229 :
16230 : // ReportWarehouseCoil(CoilID)
16231 21677709 : this->ThermalDefrostPower = DefrostLoad;
16232 21677709 : if (this->defrostType == DefrostType::Elec) {
16233 21321454 : this->ElecDefrostConsumption = DefrostCap * DefrostSchedule * state.dataHVACGlobal->TimeStepSysSec;
16234 21321454 : this->ElecDefrostPower = DefrostCap * DefrostSchedule;
16235 : } else {
16236 356255 : this->ElecDefrostConsumption = 0.0;
16237 356255 : this->ElecDefrostPower = 0.0;
16238 : }
16239 :
16240 : // If hot brine or hot gas is used for defrost, need to reduce condenser load by heat reclaimed for defrost
16241 21677709 : if (this->defrostType == DefrostType::Fluid) {
16242 356255 : this->HotDefrostCondCredit = DefrostCap * DefrostSchedule;
16243 : }
16244 : // LatentLoadServed is positive for latent heat removed from zone
16245 : // SensLoadFromZone positive for heat REMOVED from zone, switch when do credit to zone
16246 21677709 : this->SensCreditRate = SensLoadFromZone;
16247 21677709 : this->SensCreditEnergy = SensLoadFromZone * state.dataHVACGlobal->TimeStepSysSec;
16248 21677709 : this->LatCreditRate = latLoadServed;
16249 21677709 : this->LatCreditEnergy = latLoadServed * state.dataHVACGlobal->TimeStepSysSec;
16250 21677709 : this->LatKgPerS_ToZone = WaterRemovRate;
16251 21677709 : this->TotalCoolingLoad = CoilCapTotal;
16252 21677709 : this->TotalCoolingEnergy = CoilCapTotal * state.dataHVACGlobal->TimeStepSysSec;
16253 21677709 : this->SensCoolingEnergyRate = SensLoadGross;
16254 21677709 : this->SensCoolingEnergy = SensLoadGross * state.dataHVACGlobal->TimeStepSysSec;
16255 21677709 : this->SensHeatRatio = SHR;
16256 21677709 : this->ElecFanPower = FanPowerActual;
16257 21677709 : this->ElecFanConsumption = FanPowerActual * state.dataHVACGlobal->TimeStepSysSec;
16258 21677709 : this->ElecHeaterPower = HeaterLoad;
16259 21677709 : this->ElecHeaterConsumption = HeaterLoad * state.dataHVACGlobal->TimeStepSysSec;
16260 :
16261 21677709 : this->TotalElecPower = FanPowerActual + HeaterLoad + this->ElecDefrostPower;
16262 21677709 : this->TotalElecConsumption = this->TotalElecPower * state.dataHVACGlobal->TimeStepSysSec;
16263 :
16264 21677709 : if (this->SensCreditRate >= 0.0) {
16265 18016343 : this->ReportSensCoolCreditRate = this->SensCreditRate;
16266 18016343 : this->ReportHeatingCreditRate = 0.0;
16267 : } else {
16268 3661366 : this->ReportSensCoolCreditRate = 0.0;
16269 3661366 : this->ReportHeatingCreditRate = -this->SensCreditRate;
16270 : }
16271 21677709 : this->ReportSensCoolCreditEnergy = this->ReportSensCoolCreditRate * state.dataHVACGlobal->TimeStepSysSec;
16272 21677709 : this->ReportHeatingCreditEnergy = this->ReportHeatingCreditRate * state.dataHVACGlobal->TimeStepSysSec;
16273 21677709 : this->ReportTotalCoolCreditRate = this->ReportSensCoolCreditRate + this->LatCreditRate;
16274 21677709 : this->ReportTotalCoolCreditEnergy = this->ReportSensCoolCreditEnergy + this->LatCreditEnergy;
16275 :
16276 : //**************************************************************************************************
16277 : // Cap Kg Frost to avoid floating overflow errors
16278 : // 1-time warning is issued. It should be rare but could happen with unrealistic inputs.
16279 :
16280 21677709 : if (this->KgFrost > MyLargeNumber) {
16281 0 : this->KgFrost = MyLargeNumber;
16282 0 : if (this->ShowCoilFrostWarning) {
16283 0 : ShowWarningError(state, format("Refrigeration:AirCoil: {}", this->Name));
16284 0 : ShowContinueError(state, " This refrigerated air coil has insufficient defrost capacity to remove the excess frost accumulation.");
16285 0 : ShowContinueError(state, " Check the defrost schedule or defrost capacity. ");
16286 0 : ShowContinueErrorTimeStamp(state, "... Occurrence info");
16287 0 : this->ShowCoilFrostWarning = false;
16288 : }
16289 : }
16290 : }
16291 :
16292 2828408 : void FigureRefrigerationZoneGains(EnergyPlusData &state)
16293 : {
16294 :
16295 : // SUBROUTINE INFORMATION:
16296 : // AUTHOR B. Griffith
16297 : // DATE WRITTEN Dec 2011
16298 : // MODIFIED na
16299 : // RE-ENGINEERED na
16300 :
16301 : // PURPOSE OF THIS SUBROUTINE:
16302 : // initialize zone gain terms at begin environment
16303 :
16304 2828408 : auto &System = state.dataRefrigCase->System;
16305 2828408 : auto &TransSystem = state.dataRefrigCase->TransSystem;
16306 2828408 : auto &RefrigRack = state.dataRefrigCase->RefrigRack;
16307 2828408 : auto &Secondary = state.dataRefrigCase->Secondary;
16308 2828408 : auto &WalkIn = state.dataRefrigCase->WalkIn;
16309 2828408 : auto &RefrigCase = state.dataRefrigCase->RefrigCase;
16310 :
16311 2828408 : CheckRefrigerationInput(state);
16312 :
16313 2828408 : if (state.dataGlobal->BeginEnvrnFlag && state.dataRefrigCase->FigureRefrigerationZoneGainsMyEnvrnFlag) {
16314 :
16315 6496 : if (state.dataRefrigCase->NumRefrigSystems > 0) {
16316 399 : for (auto &e : System) {
16317 288 : e.PipeHeatLoad = 0.0;
16318 288 : e.NetHeatRejectLoad = 0.0;
16319 : }
16320 : }
16321 :
16322 6496 : if (state.dataRefrigCase->NumTransRefrigSystems > 0) {
16323 12 : for (auto &e : TransSystem) {
16324 6 : e.PipeHeatLoadMT = 0.0;
16325 6 : e.PipeHeatLoadLT = 0.0;
16326 6 : e.NetHeatRejectLoad = 0.0;
16327 : }
16328 : }
16329 :
16330 6496 : if (state.dataRefrigCase->NumRefrigeratedRacks > 0) {
16331 772 : for (auto &e : RefrigRack) {
16332 514 : e.SensZoneCreditHeatRate = 0.0;
16333 514 : e.SensHVACCreditHeatRate = 0.0;
16334 : }
16335 : }
16336 :
16337 6496 : if (state.dataRefrigCase->NumSimulationSecondarySystems > 0) {
16338 18 : for (auto &e : Secondary) {
16339 12 : e.DistPipeZoneHeatGain = 0.0;
16340 12 : e.ReceiverZoneHeatGain = 0.0;
16341 : }
16342 : }
16343 :
16344 6496 : if (state.dataRefrigCase->NumSimulationWalkIns > 0) {
16345 249 : for (int loop = 1; loop <= state.dataRefrigCase->NumSimulationWalkIns; ++loop) {
16346 144 : WalkIn(loop).SensZoneCreditRate = 0.0;
16347 144 : WalkIn(loop).LatZoneCreditRate = 0.0;
16348 : }
16349 : }
16350 6496 : if (state.dataRefrigCase->NumSimulationCases > 0) {
16351 1700 : for (auto &e : RefrigCase) {
16352 1385 : e.SensZoneCreditRate = 0.0;
16353 1385 : e.SensHVACCreditRate = 0.0;
16354 1385 : e.LatZoneCreditRate = 0.0;
16355 1385 : e.LatHVACCreditRate = 0.0;
16356 : }
16357 : }
16358 6496 : state.dataRefrigCase->FigureRefrigerationZoneGainsMyEnvrnFlag = false;
16359 : }
16360 2828408 : if (!state.dataGlobal->BeginEnvrnFlag) {
16361 2821912 : state.dataRefrigCase->FigureRefrigerationZoneGainsMyEnvrnFlag = true;
16362 : }
16363 2828408 : }
16364 :
16365 2891 : void ZeroHVACValues(EnergyPlusData &state)
16366 : {
16367 :
16368 : // SUBROUTINE INFORMATION:
16369 : // AUTHOR T. Stovall
16370 : // DATE WRITTEN Aug 2012
16371 : // MODIFIED na
16372 : // RE-ENGINEERED na
16373 :
16374 : // PURPOSE OF THIS SUBROUTINE:
16375 : // Reset all values that communicate outside module for HVAC steps
16376 : // to zero when called on zone timestep. Otherwise, values may be held over when
16377 : // no HVAC load calls module during that zone time step.
16378 :
16379 2891 : auto &RefrigRack = state.dataRefrigCase->RefrigRack;
16380 2891 : auto &Condenser = state.dataRefrigCase->Condenser;
16381 :
16382 2891 : int DemandARRID = 0; // Index to water tank Demand used for evap condenser
16383 :
16384 2891 : if (state.dataRefrigCase->HaveRefrigRacks) {
16385 : // HaveRefrigRacks is TRUE when NumRefrigeratedRAcks > 0
16386 : // RefrigRack ALLOCATED to NumRefrigeratedRacks
16387 0 : for (int RackNum = 1; RackNum <= state.dataRefrigCase->NumRefrigeratedRacks; ++RackNum) {
16388 0 : if (RefrigRack(RackNum).CondenserType == DataHeatBalance::RefrigCondenserType::Water) {
16389 0 : Real64 MassFlowRate = 0.0;
16390 0 : PlantUtilities::SetComponentFlowRate(
16391 0 : state, MassFlowRate, RefrigRack(RackNum).InletNode, RefrigRack(RackNum).OutletNode, RefrigRack(RackNum).plantLoc);
16392 : }
16393 0 : if (RefrigRack(RackNum).CondenserType == DataHeatBalance::RefrigCondenserType::Evap) {
16394 0 : if (RefrigRack(RackNum).EvapWaterSupplyMode == WaterSupply::FromTank) {
16395 0 : DemandARRID = RefrigRack(RackNum).EvapWaterTankDemandARRID;
16396 0 : int TankID = RefrigRack(RackNum).EvapWaterSupTankID;
16397 0 : state.dataWaterData->WaterStorage(TankID).VdotRequestDemand(DemandARRID) = 0.0;
16398 : }
16399 : }
16400 : } // RackNum
16401 : } // HaveRefrigRacks
16402 :
16403 2891 : if (state.dataRefrigCase->NumRefrigCondensers > 0) {
16404 : // Condenser ALLOCATED to DataHeatBalance::NumRefrigCondensers
16405 28910 : for (int CondID = 1; CondID <= state.dataRefrigCase->NumRefrigCondensers; ++CondID) {
16406 26019 : if (Condenser(CondID).CondenserType == DataHeatBalance::RefrigCondenserType::Water) {
16407 0 : Real64 MassFlowRate = 0.0;
16408 0 : PlantUtilities::SetComponentFlowRate(
16409 0 : state, MassFlowRate, Condenser(CondID).InletNode, Condenser(CondID).OutletNode, Condenser(CondID).plantLoc);
16410 : }
16411 26019 : if (Condenser(CondID).CondenserType == DataHeatBalance::RefrigCondenserType::Evap) {
16412 0 : if (Condenser(CondID).EvapWaterSupplyMode == WaterSupply::FromTank) {
16413 0 : DemandARRID = Condenser(CondID).EvapWaterTankDemandARRID;
16414 0 : int TankID = Condenser(CondID).EvapWaterSupTankID;
16415 0 : state.dataWaterData->WaterStorage(TankID).VdotRequestDemand(DemandARRID) = 0.0;
16416 : }
16417 : }
16418 : } // ICond
16419 : } // DataHeatBalance::NumRefrigCondensers>0
16420 2891 : }
16421 :
16422 : } // namespace EnergyPlus::RefrigeratedCase
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