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47 :
48 : #include <EnergyPlus/Autosizing/CoolingWaterDesAirOutletTempSizing.hh>
49 : #include <EnergyPlus/Data/EnergyPlusData.hh>
50 : #include <EnergyPlus/DataEnvironment.hh>
51 : #include <EnergyPlus/DataSizing.hh>
52 : #include <EnergyPlus/FluidProperties.hh>
53 : #include <EnergyPlus/General.hh>
54 : #include <EnergyPlus/Psychrometrics.hh>
55 :
56 : namespace EnergyPlus {
57 :
58 443 : Real64 CoolingWaterDesAirOutletTempSizer::size(EnergyPlusData &state, Real64 _originalValue, bool &errorsFound)
59 : {
60 443 : if (!this->checkInitialized(state, errorsFound)) {
61 0 : return 0.0;
62 : }
63 443 : this->preSize(state, _originalValue);
64 443 : if (this->curZoneEqNum > 0) {
65 92 : if (!this->wasAutoSized && !this->sizingDesRunThisZone) {
66 0 : this->autoSizedValue = _originalValue;
67 : } else {
68 92 : if (this->termUnitIU) {
69 12 : Real64 Cp = FluidProperties::GetSpecificHeatGlycol(state,
70 4 : state.dataPlnt->PlantLoop(this->dataWaterLoopNum).FluidName,
71 : DataGlobalConstants::CWInitConvTemp,
72 4 : state.dataPlnt->PlantLoop(this->dataWaterLoopNum).FluidIndex,
73 4 : this->callingRoutine);
74 12 : Real64 rho = FluidProperties::GetDensityGlycol(state,
75 4 : state.dataPlnt->PlantLoop(this->dataWaterLoopNum).FluidName,
76 : DataGlobalConstants::CWInitConvTemp,
77 4 : state.dataPlnt->PlantLoop(this->dataWaterLoopNum).FluidIndex,
78 4 : this->callingRoutine);
79 4 : Real64 DesCoilLoad = this->dataWaterFlowUsedForSizing * this->dataWaterCoilSizCoolDeltaT * Cp * rho;
80 : Real64 T1Out =
81 8 : this->dataDesInletAirTemp - DesCoilLoad / (state.dataEnvrn->StdRhoAir * Psychrometrics::PsyCpAirFnW(this->dataDesInletAirHumRat) *
82 8 : this->dataAirFlowUsedForSizing);
83 4 : Real64 T2Out = this->plantSizData(this->dataPltSizCoolNum).ExitTemp + 2.0;
84 4 : this->autoSizedValue = max(T1Out, T2Out);
85 : } else {
86 88 : this->autoSizedValue = this->finalZoneSizing(this->curZoneEqNum).CoolDesTemp;
87 : }
88 92 : Real64 fanDeltaT = 0.0;
89 92 : if (this->dataFanPlacement == DataSizing::ZoneFanPlacement::DrawThru) {
90 : // calculate fan heat to get fan air-side delta T
91 0 : Real64 FanCoolLoad = this->calcFanDesHeatGain(this->dataAirFlowUsedForSizing);
92 0 : if (this->dataDesInletAirHumRat > 0.0 && this->dataAirFlowUsedForSizing > 0.0) {
93 0 : Real64 CpAir = Psychrometrics::PsyCpAirFnW(this->dataDesInletAirHumRat);
94 0 : fanDeltaT = FanCoolLoad / (CpAir * state.dataEnvrn->StdRhoAir * this->dataAirFlowUsedForSizing);
95 0 : this->setDataDesAccountForFanHeat(state, false); // used in CoolingCapacitySizing calculations to avoid double counting fan heat
96 : }
97 : }
98 92 : this->autoSizedValue -= fanDeltaT;
99 :
100 92 : if (this->autoSizedValue < this->dataDesInletWaterTemp && this->dataWaterFlowUsedForSizing > 0.0) { // flow here is water vol flow rate
101 0 : std::string msg = this->callingRoutine + ":" + " Coil=\"" + this->compName +
102 0 : "\", Cooling Coil has leaving air temperature < entering water temperature.";
103 0 : this->addErrorMessage(msg);
104 0 : ShowWarningError(state, msg);
105 0 : msg = format(" Tair,out = {:.3R}", this->autoSizedValue);
106 0 : this->addErrorMessage(msg);
107 0 : ShowContinueError(state, msg);
108 0 : msg = format(" Twater,in = {:.3R}", this->dataDesInletWaterTemp);
109 0 : this->addErrorMessage(msg);
110 0 : ShowContinueError(state, msg);
111 0 : this->autoSizedValue = this->dataDesInletWaterTemp + 0.5;
112 0 : msg = "....coil leaving air temperature will be reset to:";
113 0 : this->addErrorMessage(msg);
114 0 : ShowContinueError(state, msg);
115 0 : msg = format(" Tair,out = {:.3R}", this->autoSizedValue);
116 0 : this->addErrorMessage(msg);
117 0 : ShowContinueError(state, msg);
118 : }
119 : }
120 351 : } else if (this->curSysNum > 0) {
121 351 : if (!this->wasAutoSized && !this->sizingDesRunThisAirSys) {
122 0 : this->autoSizedValue = _originalValue;
123 : } else {
124 351 : if (this->curOASysNum > 0) {
125 28 : if (this->outsideAirSys(this->curOASysNum).AirLoopDOASNum > -1) {
126 1 : this->autoSizedValue = this->airloopDOAS[this->outsideAirSys(this->curOASysNum).AirLoopDOASNum].PrecoolTemp;
127 : } else {
128 27 : this->autoSizedValue = this->finalSysSizing(this->curSysNum).PrecoolTemp;
129 : }
130 323 : } else if (this->dataDesOutletAirTemp > 0.0) {
131 323 : this->autoSizedValue = this->dataDesOutletAirTemp;
132 323 : Real64 fanDeltaT = 0.0;
133 323 : if (this->primaryAirSystem(this->curSysNum).supFanLocation == DataAirSystems::FanPlacement::DrawThru) {
134 : // calculate fan heat to get fan air-side delta T
135 306 : Real64 FanCoolLoad = this->calcFanDesHeatGain(this->dataAirFlowUsedForSizing);
136 306 : if (this->dataDesInletAirHumRat > 0.0 && this->dataAirFlowUsedForSizing > 0.0) {
137 306 : Real64 CpAir = Psychrometrics::PsyCpAirFnW(this->dataDesInletAirHumRat);
138 306 : fanDeltaT = FanCoolLoad / (CpAir * state.dataEnvrn->StdRhoAir * this->dataAirFlowUsedForSizing);
139 306 : this->setDataDesAccountForFanHeat(state,
140 : false); // used in CoolingCapacitySizing calculations to avoid double counting fan heat
141 : }
142 : }
143 323 : this->autoSizedValue -= fanDeltaT;
144 : } else {
145 0 : this->autoSizedValue = this->finalSysSizing(this->curSysNum).CoolSupTemp;
146 0 : Real64 fanDeltaT = 0.0;
147 0 : if (this->primaryAirSystem(this->curSysNum).supFanLocation == DataAirSystems::FanPlacement::DrawThru) {
148 : // calculate fan heat to get fan air-side delta T
149 0 : Real64 FanCoolLoad = this->calcFanDesHeatGain(this->dataAirFlowUsedForSizing);
150 0 : if (this->dataDesInletAirHumRat > 0.0 && this->dataAirFlowUsedForSizing > 0.0) {
151 0 : Real64 CpAir = Psychrometrics::PsyCpAirFnW(this->dataDesInletAirHumRat);
152 0 : fanDeltaT = FanCoolLoad / (CpAir * state.dataEnvrn->StdRhoAir * this->dataAirFlowUsedForSizing);
153 0 : this->setDataDesAccountForFanHeat(state,
154 : false); // used in CoolingCapacitySizing calculations to avoid double counting fan heat
155 : }
156 : }
157 0 : this->autoSizedValue -= fanDeltaT;
158 : }
159 351 : if (this->autoSizedValue < this->dataDesInletWaterTemp && this->dataWaterFlowUsedForSizing > 0.0) {
160 18 : std::string msg = this->callingRoutine + ":" + " Coil=\"" + this->compName +
161 18 : "\", Cooling Coil has leaving air temperature < entering water temperature.";
162 9 : this->addErrorMessage(msg);
163 9 : ShowWarningError(state, msg);
164 9 : msg = format(" Tair,out = {:.3R}", this->autoSizedValue);
165 9 : ShowContinueError(state, msg);
166 9 : msg = format(" Twater,in = {:.3R}", this->dataDesInletWaterTemp);
167 9 : ShowContinueError(state, msg);
168 9 : this->autoSizedValue = this->dataDesInletWaterTemp + 0.5;
169 9 : msg = "....coil leaving air temperature will be reset to:";
170 9 : ShowContinueError(state, msg);
171 9 : msg = format(" Tair,out = {:.3R}", this->autoSizedValue);
172 9 : ShowContinueError(state, msg);
173 : }
174 : }
175 : }
176 : // override sizing string
177 443 : if (this->overrideSizeString) {
178 443 : if (this->isEpJSON) this->sizingString = "design_outlet_air_temperature [C]";
179 : }
180 443 : this->selectSizerOutput(state, errorsFound);
181 443 : if (this->isCoilReportObject) {
182 443 : state.dataRptCoilSelection->coilSelectionReportObj->setCoilLvgAirTemp(state, this->compName, this->compType, this->autoSizedValue);
183 : }
184 443 : return this->autoSizedValue;
185 : }
186 :
187 0 : void CoolingWaterDesAirOutletTempSizer::clearState()
188 : {
189 0 : BaseSizerWithFanHeatInputs::clearState();
190 0 : }
191 :
192 2313 : } // namespace EnergyPlus
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