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47 :
48 : #ifndef DataConvergParams_hh_INCLUDED
49 : #define DataConvergParams_hh_INCLUDED
50 :
51 : // ObjexxFCL Headers
52 : #include <ObjexxFCL/Array1D.hh>
53 :
54 : // EnergyPlus Headers
55 : #include <EnergyPlus/Data/BaseData.hh>
56 : #include <EnergyPlus/DataGlobals.hh>
57 : #include <EnergyPlus/EnergyPlus.hh>
58 :
59 : namespace EnergyPlus {
60 :
61 : namespace DataConvergParams {
62 :
63 : // Note: Unless otherwise noted, the tolerance parameters listed below were chosen
64 : // to represent educated guesses at what the tolerances for individual physical
65 : // parameters should be.
66 : constexpr Real64 HVACEnthalpyToler(260.0); // Tolerance for enthalpy comparisons (in kJ/kgK)
67 : constexpr Real64 HVACFlowRateToler(0.01); // Tolerance for mass flow rate convergence (in kg/s) [~20 CFM]
68 : constexpr Real64 HVACFlowRateSlopeToler(0.001); // Slope tolerance for mass flow, kg/s/iteration
69 : constexpr Real64 HVACFlowRateOscillationToler(0.0000001); // tolerance for detecting duplicate flow rate in stack
70 : constexpr Real64 HVACHumRatToler(0.0001); // Tolerance for humidity ratio comparisons (kg water/kg dryair)
71 : constexpr Real64 HVACHumRatSlopeToler(0.00001); // Slope tolerance for humidity ratio, kg water/kg-dryair/iteration
72 : constexpr Real64 HVACHumRatOscillationToler(0.00000001); // tolerance for detecting duplicate humidity ratio in stack
73 : constexpr Real64 HVACPressToler(10.0); // Tolerance for pressure comparisons (in Pascals)
74 : constexpr Real64 HVACTemperatureToler(0.01); // Tolerance for temperature comparisons (in degrees C or K)
75 : constexpr Real64 HVACTemperatureSlopeToler(0.001); // Slope tolerance for Temperature, Deg C/iteration
76 : constexpr Real64 HVACTemperatureOscillationToler(0.000001); // tolerance for detecting duplicate temps in stack
77 : constexpr Real64 HVACEnergyToler(10.0); // Tolerance for Energy comparisons (in Watts W)
78 : constexpr Real64 HVACCO2Toler(0.1); // Tolerance for CO2 comparisons (in ppm)
79 : constexpr Real64 HVACGenContamToler(0.1); // Tolerance for generic contaminant comparisons (in ppm)
80 : // to be consistent, should be 20.d0 (BG Aug 2012)
81 :
82 : constexpr Real64 HVACCpApprox(1004.844); // Air Cp (20C,0.0Kg/Kg) Only for energy Tolerance Calculation
83 : // Only used to scale the answer for a more intuitive answer for comparison
84 :
85 : constexpr Real64 PlantFlowRateToler(0.001); // Tolerance for mass flow rate convergence (in kg/s) [~2 CFM]
86 : constexpr Real64 PlantFlowRateOscillationToler(0.0000001);
87 : constexpr Real64 PlantFlowRateSlopeToler(0.0001); // Slope tolerance for mass flow, kg/s/iteration
88 :
89 : constexpr Real64 PlantPressToler(10.0); // Tolerance for pressure comparisons (in Pascals)
90 : constexpr Real64 PlantTemperatureToler(0.01); // Tolerance for temperature comparisons (in degrees C or K)
91 : constexpr Real64 PlantTemperatureSlopeToler(0.001); // Slope tolerance for Temperature, Deg C/iteration
92 : constexpr Real64 PlantTemperatureOscillationToler(0.000001); // tolerance for detecting duplicate temps in stack
93 :
94 : constexpr Real64 PlantEnergyToler(10.0); // Tolerance for Energy comparisons (in Watts W)
95 :
96 : // Energy Tolerance Calculation, used to scale the answer for a more intuitive answer for comparison
97 : constexpr Real64 PlantFlowFlowRateToler(0.01); // Tolerance for mass flow rate convergence (in kg/s)
98 :
99 : constexpr int ConvergLogStackDepth(10);
100 :
101 : enum class CalledFrom
102 : {
103 : Invalid = -1,
104 : AirSystemDemandSide,
105 : AirSystemSupplySideDeck1,
106 : AirSystemSupplySideDeck2,
107 : Num
108 : };
109 :
110 : struct HVACNodeConvergLogStruct
111 : {
112 : int NodeNum = 0;
113 : std::array<Real64, ConvergLogStackDepth> HumidityRatio;
114 : std::array<Real64, ConvergLogStackDepth> MassFlowRate;
115 : std::array<Real64, ConvergLogStackDepth> Temperature;
116 : };
117 :
118 : struct HVACZoneInletConvergenceStruct
119 : {
120 : std::string ZoneName;
121 : int NumInletNodes = 0; // number of inlet nodes for zone
122 : Array1D<HVACNodeConvergLogStruct> InletNode;
123 : };
124 :
125 : struct HVACAirLoopIterationConvergenceStruct
126 : {
127 : std::array<bool, 3> HVACMassFlowNotConverged = {false}; // Flag to show mass flow convergence
128 : std::array<Real64, ConvergLogStackDepth> HVACFlowDemandToSupplyTolValue = {0.0}; // Queue of convergence "results"
129 : std::array<Real64, ConvergLogStackDepth> HVACFlowSupplyDeck1ToDemandTolValue = {0.0}; // Queue of convergence "results"
130 : std::array<Real64, ConvergLogStackDepth> HVACFlowSupplyDeck2ToDemandTolValue = {0.0}; // Queue of convergence "results"
131 : std::array<bool, 3> HVACHumRatNotConverged = {false}; // Flag to show humidity ratio convergence or failure
132 : std::array<Real64, ConvergLogStackDepth> HVACHumDemandToSupplyTolValue = {0.0}; // Queue of convergence "results"
133 : std::array<Real64, ConvergLogStackDepth> HVACHumSupplyDeck1ToDemandTolValue = {0.0}; // Queue of convergence "results"
134 : std::array<Real64, ConvergLogStackDepth> HVACHumSupplyDeck2ToDemandTolValue = {0.0}; // Queue of convergence "results"
135 : std::array<bool, 3> HVACTempNotConverged = {false}; // Flag to show temperature convergence or failure
136 : std::array<Real64, ConvergLogStackDepth> HVACTempDemandToSupplyTolValue = {0.0}; // Queue of convergence "results"
137 : std::array<Real64, ConvergLogStackDepth> HVACTempSupplyDeck1ToDemandTolValue = {0.0}; // Queue of convergence "results"
138 : std::array<Real64, ConvergLogStackDepth> HVACTempSupplyDeck2ToDemandTolValue = {0.0}; // Queue of convergence "results"
139 : std::array<bool, 3> HVACEnergyNotConverged = {false}; // Flag to show energy convergence or failure
140 : std::array<Real64, ConvergLogStackDepth> HVACEnergyDemandToSupplyTolValue = {0.0}; // Queue of convergence "results"
141 : std::array<Real64, ConvergLogStackDepth> HVACEnergySupplyDeck1ToDemandTolValue = {0.0}; // Queue of convergence "results"
142 : std::array<Real64, ConvergLogStackDepth> HVACEnergySupplyDeck2ToDemandTolValue = {0.0}; // Queue of convergence "results"
143 : std::array<Real64, ConvergLogStackDepth> HVACEnthalpyDemandToSupplyTolValue = {0.0}; // Queue of convergence "results"
144 : std::array<Real64, ConvergLogStackDepth> HVACEnthalpySupplyDeck1ToDemandTolValue = {0.0}; // Queue of convergence "results"
145 : std::array<Real64, ConvergLogStackDepth> HVACEnthalpySupplyDeck2ToDemandTolValue = {0.0}; // Queue of convergence "results"
146 : std::array<Real64, ConvergLogStackDepth> HVACPressureDemandToSupplyTolValue = {0.0}; // Queue of convergence "results"
147 : std::array<Real64, ConvergLogStackDepth> HVACPressureSupplyDeck1ToDemandTolValue = {0.0}; // Queue of convergence "results"
148 : std::array<Real64, ConvergLogStackDepth> HVACPressueSupplyDeck2ToDemandTolValue = {0.0}; // Queue of convergence "results"
149 : std::array<bool, 3> HVACCO2NotConverged = {false}; // Flag to show mass flow convergence
150 : std::array<Real64, ConvergLogStackDepth> HVACCO2DemandToSupplyTolValue = {0.0}; // Queue of convergence "results"
151 : std::array<Real64, ConvergLogStackDepth> HVACCO2SupplyDeck1ToDemandTolValue = {0.0}; // Queue of convergence "results"
152 : std::array<Real64, ConvergLogStackDepth> HVACCO2SupplyDeck2ToDemandTolValue = {0.0}; // Queue of convergence "results"
153 : std::array<bool, 3> HVACGenContamNotConverged = {false}; // Flag to show mass flow convergence
154 : std::array<Real64, ConvergLogStackDepth> HVACGenContamDemandToSupplyTolValue = {0.0}; // Queue of convergence "results"
155 : std::array<Real64, ConvergLogStackDepth> HVACGenContamSupplyDeck1ToDemandTolValue = {0.0}; // Queue of convergence "results"
156 : std::array<Real64, ConvergLogStackDepth> HVACGenContamSupplyDeck2ToDemandTolValue = {0.0}; // Queue of convergence "results"
157 : };
158 :
159 : struct PlantIterationConvergenceStruct
160 : {
161 : // Members
162 : bool PlantMassFlowNotConverged = false; // Flag to show mass flow convergence
163 : std::array<Real64, ConvergLogStackDepth> PlantFlowDemandToSupplyTolValue = {0.0}; // Queue of convergence "results"
164 : std::array<Real64, ConvergLogStackDepth> PlantFlowSupplyToDemandTolValue; // Queue of convergence "results"
165 : bool PlantTempNotConverged = false; // Flag to show temperature convergence (0) or failure (1)
166 : std::array<Real64, ConvergLogStackDepth> PlantTempDemandToSupplyTolValue; // Queue of convergence "results"
167 : std::array<Real64, ConvergLogStackDepth> PlantTempSupplyToDemandTolValue; // Queue of convergence "results"
168 : };
169 :
170 : } // namespace DataConvergParams
171 :
172 : struct ConvergParamsData : BaseGlobalStruct
173 : {
174 :
175 : Real64 MinTimeStepSys = (1.0 / 60.0); // =1 minute
176 : Real64 MinTimeStepTol = 1.0e-4; // = min allowable for ABS(1.-TimeStepSys/(MinTimeStepSys))
177 : Real64 MaxZoneTempDiff = 0.3; // 0.3 C = (1% OF 300 C) = max allowable difference between
178 : int MaxIter = 20; // maximum number of iterations allowed
179 : int MaxPlantSubIterations = 8; // Iteration Max for Plant Simulation sub iterations
180 : int MinPlantSubIterations = 2; // Iteration Min for Plant Simulation sub iterations
181 :
182 : Array1D<DataConvergParams::HVACZoneInletConvergenceStruct> ZoneInletConvergence;
183 : Array1D<DataConvergParams::HVACAirLoopIterationConvergenceStruct> AirLoopConvergence;
184 : Array1D<DataConvergParams::PlantIterationConvergenceStruct> PlantConvergence;
185 :
186 796 : void init_state([[maybe_unused]] EnergyPlusData &state)
187 : {
188 796 : }
189 :
190 0 : void clear_state() override
191 : {
192 0 : new (this) ConvergParamsData();
193 0 : }
194 : };
195 :
196 : } // namespace EnergyPlus
197 :
198 : #endif
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