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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 :
58 493 : Real64 CoolingWaterDesAirOutletTempSizer::size(EnergyPlusData &state, Real64 _originalValue, bool &errorsFound)
59 : {
60 493 : if (!this->checkInitialized(state, errorsFound)) {
61 0 : return 0.0;
62 : }
63 493 : this->preSize(state, _originalValue);
64 493 : if (this->curZoneEqNum > 0) {
65 107 : if (!this->wasAutoSized && !this->sizingDesRunThisZone) {
66 0 : this->autoSizedValue = _originalValue;
67 : } else {
68 107 : if (this->termUnitIU) {
69 : Real64 Cp =
70 4 : state.dataPlnt->PlantLoop(this->dataWaterLoopNum).glycol->getSpecificHeat(state, Constant::CWInitConvTemp, this->callingRoutine);
71 : Real64 rho =
72 4 : state.dataPlnt->PlantLoop(this->dataWaterLoopNum).glycol->getDensity(state, Constant::CWInitConvTemp, this->callingRoutine);
73 4 : Real64 DesCoilLoad = this->dataWaterFlowUsedForSizing * this->dataWaterCoilSizCoolDeltaT * Cp * rho;
74 : Real64 T1Out =
75 4 : this->dataDesInletAirTemp - DesCoilLoad / (state.dataEnvrn->StdRhoAir * Psychrometrics::PsyCpAirFnW(this->dataDesInletAirHumRat) *
76 4 : this->dataAirFlowUsedForSizing);
77 4 : Real64 T2Out = this->plantSizData(this->dataPltSizCoolNum).ExitTemp + 2.0;
78 4 : this->autoSizedValue = max(T1Out, T2Out);
79 : } else {
80 103 : this->autoSizedValue = this->finalZoneSizing(this->curZoneEqNum).CoolDesTemp;
81 : }
82 107 : Real64 fanDeltaT = 0.0;
83 107 : if (this->dataFanPlacement == HVAC::FanPlace::DrawThru) {
84 : // calculate fan heat to get fan air-side delta T
85 0 : Real64 FanCoolLoad = this->calcFanDesHeatGain(this->dataAirFlowUsedForSizing);
86 0 : if (this->dataDesInletAirHumRat > 0.0 && this->dataAirFlowUsedForSizing > 0.0) {
87 0 : Real64 CpAir = Psychrometrics::PsyCpAirFnW(this->dataDesInletAirHumRat);
88 0 : fanDeltaT = FanCoolLoad / (CpAir * state.dataEnvrn->StdRhoAir * this->dataAirFlowUsedForSizing);
89 0 : this->setDataDesAccountForFanHeat(state, false); // used in CoolingCapacitySizing calculations to avoid double counting fan heat
90 : }
91 : }
92 107 : this->autoSizedValue -= fanDeltaT;
93 :
94 107 : if (this->autoSizedValue < this->dataDesInletWaterTemp && this->dataWaterFlowUsedForSizing > 0.0) { // flow here is water vol flow rate
95 0 : std::string msg = this->callingRoutine + ":" + " Coil=\"" + this->compName +
96 0 : "\", Cooling Coil has leaving air temperature < entering water temperature.";
97 0 : this->addErrorMessage(msg);
98 0 : ShowWarningError(state, msg);
99 0 : msg = format(" Tair,out = {:.3R}", this->autoSizedValue);
100 0 : this->addErrorMessage(msg);
101 0 : ShowContinueError(state, msg);
102 0 : msg = format(" Twater,in = {:.3R}", this->dataDesInletWaterTemp);
103 0 : this->addErrorMessage(msg);
104 0 : ShowContinueError(state, msg);
105 0 : this->autoSizedValue = this->dataDesInletWaterTemp + 0.5;
106 0 : msg = "....coil leaving air temperature will be reset to:";
107 0 : this->addErrorMessage(msg);
108 0 : ShowContinueError(state, msg);
109 0 : msg = format(" Tair,out = {:.3R}", this->autoSizedValue);
110 0 : this->addErrorMessage(msg);
111 0 : ShowContinueError(state, msg);
112 0 : }
113 : }
114 386 : } else if (this->curSysNum > 0) {
115 386 : if (!this->wasAutoSized && !this->sizingDesRunThisAirSys) {
116 0 : this->autoSizedValue = _originalValue;
117 : } else {
118 386 : if (this->curOASysNum > 0) {
119 31 : if (this->outsideAirSys(this->curOASysNum).AirLoopDOASNum > -1) {
120 1 : this->autoSizedValue = this->airloopDOAS[this->outsideAirSys(this->curOASysNum).AirLoopDOASNum].PrecoolTemp;
121 : } else {
122 30 : this->autoSizedValue = this->finalSysSizing(this->curSysNum).PrecoolTemp;
123 : }
124 355 : } else if (this->dataDesOutletAirTemp > 0.0) {
125 355 : this->autoSizedValue = this->dataDesOutletAirTemp;
126 355 : Real64 fanDeltaT = 0.0;
127 355 : if (this->primaryAirSystem(this->curSysNum).supFanPlace == HVAC::FanPlace::DrawThru) {
128 : // calculate fan heat to get fan air-side delta T
129 337 : Real64 FanCoolLoad = this->calcFanDesHeatGain(this->dataAirFlowUsedForSizing);
130 337 : if (this->dataDesInletAirHumRat > 0.0 && this->dataAirFlowUsedForSizing > 0.0) {
131 337 : Real64 CpAir = Psychrometrics::PsyCpAirFnW(this->dataDesInletAirHumRat);
132 337 : fanDeltaT = FanCoolLoad / (CpAir * state.dataEnvrn->StdRhoAir * this->dataAirFlowUsedForSizing);
133 337 : this->setDataDesAccountForFanHeat(state,
134 : false); // used in CoolingCapacitySizing calculations to avoid double counting fan heat
135 : }
136 : }
137 355 : this->autoSizedValue -= fanDeltaT;
138 : } else {
139 0 : this->autoSizedValue = this->finalSysSizing(this->curSysNum).CoolSupTemp;
140 0 : Real64 fanDeltaT = 0.0;
141 0 : if (this->primaryAirSystem(this->curSysNum).supFanPlace == HVAC::FanPlace::DrawThru) {
142 : // calculate fan heat to get fan air-side delta T
143 0 : Real64 FanCoolLoad = this->calcFanDesHeatGain(this->dataAirFlowUsedForSizing);
144 0 : if (this->dataDesInletAirHumRat > 0.0 && this->dataAirFlowUsedForSizing > 0.0) {
145 0 : Real64 CpAir = Psychrometrics::PsyCpAirFnW(this->dataDesInletAirHumRat);
146 0 : fanDeltaT = FanCoolLoad / (CpAir * state.dataEnvrn->StdRhoAir * this->dataAirFlowUsedForSizing);
147 0 : this->setDataDesAccountForFanHeat(state,
148 : false); // used in CoolingCapacitySizing calculations to avoid double counting fan heat
149 : }
150 : }
151 0 : this->autoSizedValue -= fanDeltaT;
152 : }
153 386 : if (this->autoSizedValue < this->dataDesInletWaterTemp && this->dataWaterFlowUsedForSizing > 0.0) {
154 22 : std::string msg = this->callingRoutine + ":" + " Coil=\"" + this->compName +
155 11 : "\", Cooling Coil has leaving air temperature < entering water temperature.";
156 11 : this->addErrorMessage(msg);
157 11 : ShowWarningError(state, msg);
158 11 : msg = format(" Tair,out = {:.3R}", this->autoSizedValue);
159 11 : ShowContinueError(state, msg);
160 11 : msg = format(" Twater,in = {:.3R}", this->dataDesInletWaterTemp);
161 11 : ShowContinueError(state, msg);
162 11 : this->autoSizedValue = this->dataDesInletWaterTemp + 0.5;
163 11 : msg = "....coil leaving air temperature will be reset to:";
164 11 : ShowContinueError(state, msg);
165 11 : msg = format(" Tair,out = {:.3R}", this->autoSizedValue);
166 11 : ShowContinueError(state, msg);
167 11 : }
168 : }
169 : }
170 : // override sizing string
171 493 : if (this->overrideSizeString) {
172 493 : if (this->isEpJSON) {
173 0 : this->sizingString = "design_outlet_air_temperature [C]";
174 : }
175 : }
176 493 : this->selectSizerOutput(state, errorsFound);
177 493 : if (this->isCoilReportObject) {
178 493 : state.dataRptCoilSelection->coilSelectionReportObj->setCoilLvgAirTemp(state, this->compName, this->compType, this->autoSizedValue);
179 : }
180 493 : return this->autoSizedValue;
181 : }
182 :
183 0 : void CoolingWaterDesAirOutletTempSizer::clearState()
184 : {
185 0 : BaseSizerWithFanHeatInputs::clearState();
186 0 : }
187 :
188 : } // namespace EnergyPlus
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