Line data Source code
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47 :
48 : #include <EnergyPlus/Autosizing/HeatingWaterDesAirInletTempSizing.hh>
49 : #include <EnergyPlus/Data/EnergyPlusData.hh>
50 : #include <EnergyPlus/DataEnvironment.hh>
51 :
52 : namespace EnergyPlus {
53 :
54 2213 : Real64 HeatingWaterDesAirInletTempSizer::size(EnergyPlusData &state, Real64 _originalValue, bool &errorsFound)
55 : {
56 2213 : if (!this->checkInitialized(state, errorsFound)) {
57 0 : return 0.0;
58 : }
59 2213 : this->preSize(state, _originalValue);
60 :
61 2213 : if (this->curZoneEqNum > 0) {
62 1842 : if (!this->wasAutoSized && !this->sizingDesRunThisZone) {
63 0 : this->autoSizedValue = _originalValue;
64 : } else {
65 1842 : if (this->termUnitPIU && (this->curTermUnitSizingNum > 0)) {
66 34 : Real64 MinFlowFrac = this->termUnitSizing(this->curTermUnitSizingNum).MinFlowFrac;
67 34 : if (this->termUnitSizing(this->curTermUnitSizingNum).InducesPlenumAir) {
68 4 : this->autoSizedValue = (this->termUnitFinalZoneSizing(this->curTermUnitSizingNum).DesHeatCoilInTempTU * MinFlowFrac) +
69 2 : (this->termUnitFinalZoneSizing(this->curTermUnitSizingNum).ZoneRetTempAtHeatPeak * (1.0 - MinFlowFrac));
70 : } else {
71 64 : this->autoSizedValue = this->termUnitFinalZoneSizing(this->curTermUnitSizingNum).DesHeatCoilInTempTU * MinFlowFrac +
72 32 : this->finalZoneSizing(this->curZoneEqNum).ZoneTempAtHeatPeak * (1.0 - MinFlowFrac);
73 34 : }
74 1808 : } else if (this->termUnitIU && (this->curTermUnitSizingNum > 0)) {
75 4 : this->autoSizedValue = this->termUnitFinalZoneSizing(this->curTermUnitSizingNum).ZoneTempAtHeatPeak;
76 1804 : } else if (this->termUnitSingDuct && (this->curTermUnitSizingNum > 0)) {
77 1700 : this->autoSizedValue = this->termUnitFinalZoneSizing(this->curTermUnitSizingNum).DesHeatCoilInTempTU;
78 : } else {
79 : Real64 DesMassFlow;
80 104 : if (this->zoneEqSizing(this->curZoneEqNum).SystemAirFlow) {
81 1 : DesMassFlow = this->zoneEqSizing(this->curZoneEqNum).AirVolFlow * state.dataEnvrn->StdRhoAir;
82 103 : } else if (this->zoneEqSizing(this->curZoneEqNum).HeatingAirFlow) {
83 12 : DesMassFlow = this->zoneEqSizing(this->curZoneEqNum).HeatingAirVolFlow * state.dataEnvrn->StdRhoAir;
84 : } else {
85 91 : DesMassFlow = this->finalZoneSizing(this->curZoneEqNum).DesHeatMassFlow;
86 : }
87 312 : this->autoSizedValue = this->setHeatCoilInletTempForZoneEqSizing(
88 104 : this->setOAFracForZoneEqSizing(state, DesMassFlow, this->zoneEqSizing(this->curZoneEqNum)),
89 104 : this->zoneEqSizing(this->curZoneEqNum),
90 104 : this->finalZoneSizing(this->curZoneEqNum));
91 : }
92 : }
93 371 : } else if (this->curSysNum > 0) {
94 371 : if (!this->wasAutoSized && !this->sizingDesRunThisAirSys) {
95 0 : this->autoSizedValue = _originalValue;
96 : } else {
97 371 : Real64 OutAirFrac = 1.0;
98 371 : if (this->curOASysNum > 0) {
99 28 : OutAirFrac = 1.0;
100 343 : } else if (this->finalSysSizing(this->curSysNum).HeatOAOption == this->minOA) {
101 330 : if (this->dataFlowUsedForSizing > 0.0) {
102 330 : OutAirFrac = this->finalSysSizing(this->curSysNum).DesOutAirVolFlow / this->dataFlowUsedForSizing;
103 : } else {
104 0 : OutAirFrac = 1.0;
105 : }
106 330 : OutAirFrac = min(1.0, max(0.0, OutAirFrac));
107 : }
108 : // coil inlet temperature
109 371 : if (this->curOASysNum == 0 && this->primaryAirSystem(this->curSysNum).NumOAHeatCoils > 0) {
110 50 : this->autoSizedValue = OutAirFrac * this->finalSysSizing(this->curSysNum).PreheatTemp +
111 25 : (1.0 - OutAirFrac) * this->finalSysSizing(this->curSysNum).HeatRetTemp;
112 346 : } else if (this->curOASysNum > 0 && this->outsideAirSys(this->curOASysNum).AirLoopDOASNum > -1) {
113 1 : this->autoSizedValue = this->airloopDOAS[this->outsideAirSys(this->curOASysNum).AirLoopDOASNum].HeatOutTemp;
114 : } else {
115 690 : this->autoSizedValue = OutAirFrac * this->finalSysSizing(this->curSysNum).HeatOutTemp +
116 345 : (1.0 - OutAirFrac) * this->finalSysSizing(this->curSysNum).HeatRetTemp;
117 : }
118 : }
119 : }
120 2213 : if (this->overrideSizeString) {
121 2213 : if (this->isEpJSON) this->sizingString = "rated_inlet_air_temperature";
122 : }
123 2213 : this->selectSizerOutput(state, errorsFound);
124 : // report not written for OA coils and needs to be corrected
125 2213 : if (this->curSysNum <= this->numPrimaryAirSys) {
126 2212 : if (this->isCoilReportObject)
127 2212 : state.dataRptCoilSelection->coilSelectionReportObj->setCoilEntAirTemp(
128 : state, this->compName, this->compType, this->autoSizedValue, this->curSysNum, this->curZoneEqNum);
129 : }
130 2213 : return this->autoSizedValue;
131 : }
132 :
133 2313 : } // namespace EnergyPlus
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