Line data Source code
1 : // EnergyPlus, Copyright (c) 1996-2024, The Board of Trustees of the University of Illinois,
2 : // The Regents of the University of California, through Lawrence Berkeley National Laboratory
3 : // (subject to receipt of any required approvals from the U.S. Dept. of Energy), Oak Ridge
4 : // National Laboratory, managed by UT-Battelle, Alliance for Sustainable Energy, LLC, and other
5 : // contributors. All rights reserved.
6 : //
7 : // NOTICE: This Software was developed under funding from the U.S. Department of Energy and the
8 : // U.S. Government consequently retains certain rights. As such, the U.S. Government has been
9 : // granted for itself and others acting on its behalf a paid-up, nonexclusive, irrevocable,
10 : // worldwide license in the Software to reproduce, distribute copies to the public, prepare
11 : // derivative works, and perform publicly and display publicly, and to permit others to do so.
12 : //
13 : // Redistribution and use in source and binary forms, with or without modification, are permitted
14 : // provided that the following conditions are met:
15 : //
16 : // (1) Redistributions of source code must retain the above copyright notice, this list of
17 : // conditions and the following disclaimer.
18 : //
19 : // (2) Redistributions in binary form must reproduce the above copyright notice, this list of
20 : // conditions and the following disclaimer in the documentation and/or other materials
21 : // provided with the distribution.
22 : //
23 : // (3) Neither the name of the University of California, Lawrence Berkeley National Laboratory,
24 : // the University of Illinois, U.S. Dept. of Energy nor the names of its contributors may be
25 : // used to endorse or promote products derived from this software without specific prior
26 : // written permission.
27 : //
28 : // (4) Use of EnergyPlus(TM) Name. If Licensee (i) distributes the software in stand-alone form
29 : // without changes from the version obtained under this License, or (ii) Licensee makes a
30 : // reference solely to the software portion of its product, Licensee must refer to the
31 : // software as "EnergyPlus version X" software, where "X" is the version number Licensee
32 : // obtained under this License and may not use a different name for the software. Except as
33 : // specifically required in this Section (4), Licensee shall not use in a company name, a
34 : // product name, in advertising, publicity, or other promotional activities any name, trade
35 : // name, trademark, logo, or other designation of "EnergyPlus", "E+", "e+" or confusingly
36 : // similar designation, without the U.S. Department of Energy's prior written consent.
37 : //
38 : // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
39 : // IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
40 : // AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
41 : // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
42 : // CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
43 : // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
44 : // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
45 : // OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
46 : // POSSIBILITY OF SUCH DAMAGE.
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 : static constexpr std::array<std::string_view, static_cast<int>(InletWaterTemp::Num)> inletWaterTempsUC = {"FIXEDINLETWATERTEMPERATURE",
86 : "VARIABLEINLETWATERTEMPERATURE"};
87 :
88 : class HumidifierData
89 : {
90 : private:
91 : public:
92 : // Members
93 : std::string Name; // unique name of component
94 : HumidType HumType; // Pointer to Humidifier in list of humidifiers
95 : int EquipIndex; // Pointer to Humidifier in list of humidifiers
96 : std::string Sched; // name of availability schedule
97 : int SchedPtr; // index of availability schedule
98 : Real64 NomCapVol; // nominal capacity [m3/s of water]
99 : Real64 NomCap; // nominal capacity [kg/s of water]
100 : Real64 NomPower; // power consumption at full output [watts]
101 : Real64 ThermalEffRated; // rated thermal efficiency of the gas fired humidifier [-]
102 : Real64 CurMakeupWaterTemp; // makeup water temperature from main water [C]
103 : int EfficiencyCurvePtr; // index to efficiency curve
104 : InletWaterTemp InletWaterTempOption; // type inlet water temperature fixed or variable
105 : Real64 FanPower; // nominal fan power [watts]
106 : Real64 StandbyPower; // standby power consumption [watts]
107 : int AirInNode; // air inlet node of humidifier
108 : int AirOutNode; // air outlet node of humidifier
109 : Real64 AirInTemp; // inlet air temperature [C]
110 : Real64 AirInHumRat; // inlet air humidity ratio [kg water / kg air]
111 : Real64 AirInEnthalpy; // inlet air specific enthalpy [J/kg]
112 : Real64 AirInMassFlowRate; // inlet air mass flow rate [kg/s]
113 : Real64 AirOutTemp; // outlet air temperature [C]
114 : Real64 AirOutHumRat; // outlet air humidity ratio [kg water / kg air]
115 : Real64 AirOutEnthalpy; // outlet air specific enthalpy [J/kg]
116 : Real64 AirOutMassFlowRate; // outlet air mass flow rate [kg/s]
117 : Real64 HumRatSet; // humidity ratio setpoint [kg water / kg air]
118 : Real64 WaterAdd; // water output (and consumption) [kg/s]
119 : Real64 ElecUseEnergy; // electricity consumption [J]
120 : Real64 ElecUseRate; // electricity consumption [W]
121 : Real64 WaterCons; // water consumption in cubic meters
122 : Real64 WaterConsRate; // water consumption rate in m3/s
123 : bool SuppliedByWaterSystem; // true means there is storage tank, otherwise mains
124 : int WaterTankID; // index pointer to water storage tank
125 : int WaterTankDemandARRID; // index pointer to WaterStorage Demand arrays.
126 : Real64 TankSupplyVdot;
127 : Real64 TankSupplyVol;
128 : Real64 StarvedSupplyVdot;
129 : Real64 StarvedSupplyVol;
130 : int TankSupplyID; // index pointer to WaterStorage supply arrays.
131 : bool MySizeFlag;
132 : bool MyEnvrnFlag;
133 : bool MySetPointCheckFlag;
134 : // report variables for gas humidifier
135 : Real64 ThermalEff; // current actual thermal efficiency gas humidifier [-]
136 : Real64 GasUseRate; // gas consumption rate [W]
137 : Real64 GasUseEnergy; // gas energy consumption [J]
138 : Real64 AuxElecUseRate; // auxiliary electric power input [W]
139 : Real64 AuxElecUseEnergy; // auxiliary electric energy consumption [J]'
140 :
141 : // Default Constructor
142 24 : HumidifierData()
143 72 : : HumType(HumidType::Invalid), EquipIndex(0), SchedPtr(0), NomCapVol(0.0), NomCap(0.0), NomPower(0.0), ThermalEffRated(1.0),
144 24 : CurMakeupWaterTemp(0.0), EfficiencyCurvePtr(0), InletWaterTempOption(InletWaterTemp::Invalid), FanPower(0.0), StandbyPower(0.0),
145 24 : AirInNode(0), AirOutNode(0), AirInTemp(0.0), AirInHumRat(0.0), AirInEnthalpy(0.0), AirInMassFlowRate(0.0), AirOutTemp(0.0),
146 24 : AirOutHumRat(0.0), AirOutEnthalpy(0.0), AirOutMassFlowRate(0.0), HumRatSet(0.0), WaterAdd(0.0), ElecUseEnergy(0.0), ElecUseRate(0.0),
147 24 : WaterCons(0.0), WaterConsRate(0.0), SuppliedByWaterSystem(false), WaterTankID(0), WaterTankDemandARRID(0), TankSupplyVdot(0.0),
148 24 : TankSupplyVol(0.0), StarvedSupplyVdot(0.0), StarvedSupplyVol(0.0), TankSupplyID(0), MySizeFlag(true), MyEnvrnFlag(true),
149 24 : MySetPointCheckFlag(true), ThermalEff(0.0), GasUseRate(0.0), GasUseEnergy(0.0), AuxElecUseRate(0.0), AuxElecUseEnergy(0.0)
150 : {
151 24 : }
152 :
153 : void InitHumidifier(EnergyPlusData &state); // number of the current humidifier being simulated
154 :
155 : void SizeHumidifier(EnergyPlusData &state); // number of the current humidifier being sized
156 :
157 : void ControlHumidifier(EnergyPlusData &state,
158 : Real64 &WaterAddNeeded // moisture addition rate needed to meet minimum humidity ratio setpoint [kg/s]
159 : );
160 :
161 : void CalcElecSteamHumidifier(EnergyPlusData &state, Real64 const WaterAddNeeded // moisture addition rate set by controller [kg/s]
162 : );
163 :
164 : void CalcGasSteamHumidifier(EnergyPlusData &state, Real64 const WaterAddNeeded // moisture addition rate set by controller [kg/s]
165 : );
166 :
167 : void UpdateReportWaterSystem(EnergyPlusData &state); // number of the current humidifier being simulated
168 :
169 : void UpdateHumidifier(EnergyPlusData &state); // number of the current humidifier being simulated
170 :
171 : void ReportHumidifier(EnergyPlusData &state); // number of the current humidifier being simulated
172 : };
173 :
174 : void SimHumidifier(EnergyPlusData &state,
175 : std::string_view CompName, // name of the humidifier unit
176 : bool const FirstHVACIteration, // TRUE if 1st HVAC simulation of system timestep
177 : int &CompIndex // Pointer to Humidifier Unit
178 : );
179 :
180 : void GetHumidifierInput(EnergyPlusData &state);
181 :
182 : int GetAirInletNodeNum(EnergyPlusData &state, std::string const &HumidifierName, bool &ErrorsFound);
183 :
184 : int GetAirOutletNodeNum(EnergyPlusData &state, std::string const &HumidifierName, bool &ErrorsFound);
185 :
186 : } // namespace Humidifiers
187 :
188 : struct HumidifiersData : BaseGlobalStruct
189 : {
190 : int NumHumidifiers = 0; // number of humidifiers of all types
191 : int NumElecSteamHums = 0; // number of electric steam humidifiers
192 : int NumGasSteamHums = 0; // number of electric steam humidifiers
193 : Array1D_bool CheckEquipName;
194 : bool GetInputFlag = true; // moved up from a static function variable
195 :
196 : // Object Data
197 : Array1D<Humidifiers::HumidifierData> Humidifier;
198 : std::unordered_map<std::string, std::string> HumidifierUniqueNames;
199 :
200 796 : void init_state([[maybe_unused]] EnergyPlusData &state) override
201 : {
202 796 : }
203 :
204 0 : void clear_state() override
205 : {
206 0 : this->NumHumidifiers = 0;
207 0 : this->NumElecSteamHums = 0;
208 0 : this->NumGasSteamHums = 0;
209 0 : this->CheckEquipName.clear();
210 0 : this->GetInputFlag = true;
211 0 : this->Humidifier.clear();
212 0 : this->HumidifierUniqueNames.clear();
213 0 : }
214 : };
215 :
216 : } // namespace EnergyPlus
217 :
218 : #endif
|
