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47 :
48 : #ifndef Humidifiers_hh_INCLUDED
49 : #define Humidifiers_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 : // Forward declarations
62 : struct EnergyPlusData;
63 :
64 : namespace Humidifiers {
65 :
66 : static constexpr std::array<std::string_view, 2> HumidifierType = {"Humidifier:Steam:Electric", "Humidifier:Steam:Gas"};
67 : constexpr std::string_view fluidNameSteam = "STEAM";
68 : constexpr std::string_view fluidNameWater = "WATER";
69 :
70 : enum class HumidType
71 : {
72 : Invalid = -1,
73 : Electric,
74 : Gas,
75 : Num
76 : };
77 :
78 : enum class InletWaterTemp
79 : {
80 : Invalid = -1,
81 : Fixed,
82 : Variable,
83 : Num
84 : };
85 :
86 95 : class HumidifierData
87 : {
88 : private:
89 : public:
90 : // Members
91 : std::string Name; // unique name of component
92 : HumidType HumType; // Pointer to Humidifier in list of humidifiers
93 : int EquipIndex; // Pointer to Humidifier in list of humidifiers
94 : std::string Sched; // name of availability schedule
95 : int SchedPtr; // index of availability schedule
96 : Real64 NomCapVol; // nominal capacity [m3/s of water]
97 : Real64 NomCap; // nominal capacity [kg/s of water]
98 : Real64 NomPower; // power consumption at full output [watts]
99 : Real64 ThermalEffRated; // rated thermal efficiency of the gas fired humidifier [-]
100 : Real64 CurMakeupWaterTemp; // makeup water temperature from main water [C]
101 : int EfficiencyCurvePtr; // index to efficiency curve
102 : InletWaterTemp InletWaterTempOption; // type inlet water temperature fixed or variable
103 : Real64 FanPower; // nominal fan power [watts]
104 : Real64 StandbyPower; // standby power consumption [watts]
105 : int AirInNode; // air inlet node of humidifier
106 : int AirOutNode; // air outlet node of humidifier
107 : Real64 AirInTemp; // inlet air temperature [C]
108 : Real64 AirInHumRat; // inlet air humidity ratio [kg water / kg air]
109 : Real64 AirInEnthalpy; // inlet air specific enthalpy [J/kg]
110 : Real64 AirInMassFlowRate; // inlet air mass flow rate [kg/s]
111 : Real64 AirOutTemp; // outlet air temperature [C]
112 : Real64 AirOutHumRat; // outlet air humidity ratio [kg water / kg air]
113 : Real64 AirOutEnthalpy; // outlet air specific enthalpy [J/kg]
114 : Real64 AirOutMassFlowRate; // outlet air mass flow rate [kg/s]
115 : Real64 HumRatSet; // humidity ratio setpoint [kg water / kg air]
116 : Real64 WaterAdd; // water output (and consumption) [kg/s]
117 : Real64 ElecUseEnergy; // electricity consumption [J]
118 : Real64 ElecUseRate; // electricity consumption [W]
119 : Real64 WaterCons; // water consumption in cubic meters
120 : Real64 WaterConsRate; // water consumption rate in m3/s
121 : bool SuppliedByWaterSystem; // true means there is storage tank, otherwise mains
122 : int WaterTankID; // index pointer to water storage tank
123 : int WaterTankDemandARRID; // index pointer to WaterStorage Demand arrays.
124 : Real64 TankSupplyVdot;
125 : Real64 TankSupplyVol;
126 : Real64 StarvedSupplyVdot;
127 : Real64 StarvedSupplyVol;
128 : int TankSupplyID; // index pointer to WaterStorage supply arrays.
129 : bool MySizeFlag;
130 : bool MyEnvrnFlag;
131 : bool MySetPointCheckFlag;
132 : // report variables for gas humidifier
133 : Real64 ThermalEff; // current actual thermal efficiency gas humidifier [-]
134 : Real64 GasUseRate; // gas consumption rate [W]
135 : Real64 GasUseEnergy; // gas energy consumption [J]
136 : Real64 AuxElecUseRate; // auxiliary electric power input [W]
137 : Real64 AuxElecUseEnergy; // auxiliary electric energy consumption [J]'
138 :
139 : // Default Constructor
140 23 : HumidifierData()
141 23 : : HumType(HumidType::Invalid), EquipIndex(0), SchedPtr(0), NomCapVol(0.0), NomCap(0.0), NomPower(0.0), ThermalEffRated(1.0),
142 : CurMakeupWaterTemp(0.0), EfficiencyCurvePtr(0), InletWaterTempOption(InletWaterTemp::Invalid), FanPower(0.0), StandbyPower(0.0),
143 : AirInNode(0), AirOutNode(0), AirInTemp(0.0), AirInHumRat(0.0), AirInEnthalpy(0.0), AirInMassFlowRate(0.0), AirOutTemp(0.0),
144 : AirOutHumRat(0.0), AirOutEnthalpy(0.0), AirOutMassFlowRate(0.0), HumRatSet(0.0), WaterAdd(0.0), ElecUseEnergy(0.0), ElecUseRate(0.0),
145 : WaterCons(0.0), WaterConsRate(0.0), SuppliedByWaterSystem(false), WaterTankID(0), WaterTankDemandARRID(0), TankSupplyVdot(0.0),
146 : TankSupplyVol(0.0), StarvedSupplyVdot(0.0), StarvedSupplyVol(0.0), TankSupplyID(0), MySizeFlag(true), MyEnvrnFlag(true),
147 23 : MySetPointCheckFlag(true), ThermalEff(0.0), GasUseRate(0.0), GasUseEnergy(0.0), AuxElecUseRate(0.0), AuxElecUseEnergy(0.0)
148 : {
149 23 : }
150 :
151 : void InitHumidifier(EnergyPlusData &state); // number of the current humidifier being simulated
152 :
153 : void SizeHumidifier(EnergyPlusData &state); // number of the current humidifier being sized
154 :
155 : void ControlHumidifier(EnergyPlusData &state,
156 : Real64 &WaterAddNeeded // moisture addition rate needed to meet minimum humidity ratio setpoint [kg/s]
157 : );
158 :
159 : void CalcElecSteamHumidifier(EnergyPlusData &state, Real64 const WaterAddNeeded // moisture addition rate set by controller [kg/s]
160 : );
161 :
162 : void CalcGasSteamHumidifier(EnergyPlusData &state, Real64 const WaterAddNeeded // moisture addition rate set by controller [kg/s]
163 : );
164 :
165 : void UpdateReportWaterSystem(EnergyPlusData &state); // number of the current humidifier being simulated
166 :
167 : void UpdateHumidifier(EnergyPlusData &state); // number of the current humidifier being simulated
168 :
169 : void ReportHumidifier(EnergyPlusData &state); // number of the current humidifier being simulated
170 : };
171 :
172 : void SimHumidifier(EnergyPlusData &state,
173 : std::string_view CompName, // name of the humidifier unit
174 : bool const FirstHVACIteration, // TRUE if 1st HVAC simulation of system timestep
175 : int &CompIndex // Pointer to Humidifier Unit
176 : );
177 :
178 : void GetHumidifierInput(EnergyPlusData &state);
179 :
180 : int GetAirInletNodeNum(EnergyPlusData &state, std::string const &HumidifierName, bool &ErrorsFound);
181 :
182 : int GetAirOutletNodeNum(EnergyPlusData &state, std::string const &HumidifierName, bool &ErrorsFound);
183 :
184 : } // namespace Humidifiers
185 :
186 1542 : struct HumidifiersData : BaseGlobalStruct
187 : {
188 : int NumHumidifiers = 0; // number of humidifiers of all types
189 : int NumElecSteamHums = 0; // number of electric steam humidifiers
190 : int NumGasSteamHums = 0; // number of electric steam humidifiers
191 : Array1D_bool CheckEquipName;
192 : bool GetInputFlag = true; // moved up from a static function variable
193 :
194 : // Object Data
195 : Array1D<Humidifiers::HumidifierData> Humidifier;
196 : std::unordered_map<std::string, std::string> HumidifierUniqueNames;
197 :
198 0 : void clear_state() override
199 : {
200 0 : this->NumHumidifiers = 0;
201 0 : this->NumElecSteamHums = 0;
202 0 : this->NumGasSteamHums = 0;
203 0 : this->CheckEquipName.clear();
204 0 : this->GetInputFlag = true;
205 0 : this->Humidifier.clear();
206 0 : this->HumidifierUniqueNames.clear();
207 0 : }
208 : };
209 :
210 : } // namespace EnergyPlus
211 :
212 : #endif
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