Line data Source code
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47 :
48 : #include <EnergyPlus/Autosizing/Base.hh>
49 : #include <EnergyPlus/Autosizing/BaseSizerWithFanHeatInputs.hh>
50 : #include <EnergyPlus/Data/EnergyPlusData.hh>
51 : #include <EnergyPlus/Fans.hh>
52 : #include <EnergyPlus/HVACFan.hh>
53 : #include <string>
54 :
55 : namespace EnergyPlus {
56 :
57 20504 : void BaseSizerWithFanHeatInputs::initializeWithinEP(EnergyPlusData &state,
58 : std::string_view const _compType,
59 : std::string_view const _compName,
60 : bool _printWarningFlag,
61 : std::string_view const _callingRoutine)
62 : {
63 20504 : BaseSizer::initializeWithinEP(state, _compType, _compName, _printWarningFlag, _callingRoutine);
64 20504 : this->dataDesAccountForFanHeat = state.dataSize->DataDesAccountForFanHeat;
65 : // water coils on main branch have no parent object to set DataFan* variables
66 20504 : if (!(this->primaryAirSystem.empty()) && this->curSysNum > 0 && this->curOASysNum == 0) {
67 10058 : if (this->primaryAirSystem(this->curSysNum).supFanModelType == DataAirSystems::StructArrayLegacyFanModels) {
68 9120 : this->dataFanEnumType = DataAirSystems::StructArrayLegacyFanModels;
69 9120 : this->dataFanIndex = this->primaryAirSystem(this->curSysNum).SupFanNum;
70 938 : } else if (this->primaryAirSystem(this->curSysNum).supFanModelType == DataAirSystems::ObjectVectorOOFanSystemModel) {
71 912 : this->dataFanEnumType = DataAirSystems::ObjectVectorOOFanSystemModel;
72 912 : this->dataFanIndex = this->primaryAirSystem(this->curSysNum).supFanVecIndex;
73 : }
74 : }
75 20504 : this->getFanInputsForDesHeatGain(state,
76 : this->dataFanEnumType,
77 : this->dataFanIndex,
78 : this->deltaP,
79 : this->motEff,
80 : this->totEff,
81 : this->motInAirFrac,
82 : this->fanShaftPow,
83 : this->motInPower,
84 : this->fanCompModel);
85 20504 : }
86 :
87 2442 : Real64 BaseSizerWithFanHeatInputs::calcFanDesHeatGain(Real64 &airVolFlow)
88 : {
89 2442 : Real64 designHeatGain = 0.0;
90 2442 : if (this->dataFanEnumType < 0 || this->dataFanIndex < 0) return designHeatGain;
91 2420 : if (this->dataFanEnumType == DataAirSystems::Invalid) return designHeatGain;
92 2420 : if (this->dataFanEnumType == DataAirSystems::StructArrayLegacyFanModels && this->dataFanIndex == 0) return designHeatGain;
93 2420 : if (this->fanCompModel) {
94 3 : designHeatGain = this->fanShaftPow + (this->motInPower - this->fanShaftPow) * this->motInAirFrac;
95 : } else {
96 2417 : Real64 fanPowerTot = (airVolFlow * this->deltaP) / this->totEff;
97 2417 : designHeatGain = this->motEff * fanPowerTot + (fanPowerTot - this->motEff * fanPowerTot) * this->motInAirFrac;
98 : }
99 2420 : return designHeatGain;
100 : }
101 :
102 20504 : void BaseSizerWithFanHeatInputs::getFanInputsForDesHeatGain(EnergyPlusData &state,
103 : int fanEnumType,
104 : int fanIndex,
105 : Real64 &deltaP,
106 : Real64 &motEff,
107 : Real64 &totEff,
108 : Real64 &motInAirFrac,
109 : Real64 &fanShaftPow,
110 : Real64 &motInPower,
111 : bool &fanCompModel)
112 : {
113 : // if fan unknown or air flow sizing (recursive call to size fan) then return
114 20504 : if (fanEnumType < 0 || fanIndex < 0 || this->isFanReportObject) return;
115 :
116 13418 : switch (fanEnumType) {
117 11856 : case DataAirSystems::StructArrayLegacyFanModels: {
118 11856 : Fans::FanInputsForDesHeatGain(state, fanIndex, deltaP, motEff, totEff, motInAirFrac, fanShaftPow, motInPower, fanCompModel);
119 11856 : break;
120 : }
121 1562 : case DataAirSystems::ObjectVectorOOFanSystemModel: {
122 1562 : state.dataHVACFan->fanObjs[fanIndex]->FanInputsForDesignHeatGain(state, deltaP, motEff, totEff, motInAirFrac);
123 1562 : break;
124 : }
125 0 : case DataAirSystems::Invalid: {
126 : // do nothing
127 0 : break;
128 : }
129 : } // end switch
130 13418 : return;
131 : }
132 :
133 323 : void BaseSizerWithFanHeatInputs::setDataDesAccountForFanHeat(EnergyPlusData &state, bool flag)
134 : {
135 323 : state.dataSize->DataDesAccountForFanHeat = flag;
136 323 : }
137 :
138 2313 : } // namespace EnergyPlus
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