Line data Source code
1 : // EnergyPlus, Copyright (c) 1996-2025, 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 HighTempRadiantSystem_hh_INCLUDED
49 : #define HighTempRadiantSystem_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/DataSizing.hh>
58 : #include <EnergyPlus/EnergyPlus.hh>
59 :
60 : namespace EnergyPlus {
61 :
62 : // Forward declarations
63 : struct EnergyPlusData;
64 :
65 : namespace HighTempRadiantSystem {
66 :
67 : // Types
68 :
69 : enum class RadControlType : int
70 : {
71 : Invalid = -1,
72 : MATControl,
73 : MRTControl,
74 : OperativeControl,
75 : MATSPControl,
76 : MRTSPControl,
77 : OperativeSPControl,
78 : Num
79 : };
80 :
81 : struct HighTempRadiantSystemData
82 : {
83 : // Members
84 : // Input data
85 : std::string Name; // name of hydronic radiant system
86 : Sched::Schedule *availSched = nullptr; // availability schedule
87 : int ZonePtr; // Point to this zone in the Zone derived type
88 : Constant::eResource HeaterType; // Type of heater (NaturalGas or Electricity)
89 : Real64 MaxPowerCapac; // Maximum capacity of the radiant heater in Watts
90 : Real64 CombustionEffic; // Combustion efficiency (only valid for a gas heater)
91 : Real64 FracRadiant; // Fraction of heater power that is given off as radiant heat
92 : Real64 FracLatent; // Fraction of heater power that is given off as latent heat
93 : Real64 FracLost; // Fraction of heater power that is lost to the outside environment
94 : Real64 FracConvect; // Fraction of heater power that is given off as convective heat
95 : // (by definition this is 1 minus the sum of all other fractions)
96 : RadControlType ControlType; // Control type for the system (MAT, MRT, or op temp)
97 : Real64 ThrottlRange; // Throttling range for heating [C]
98 : Sched::Schedule *setptSched = nullptr; // Schedule for the zone setpoint temperature
99 : Real64 FracDistribPerson; // Fraction of fraction radiant incident on a "person" in the space
100 : int TotSurfToDistrib; // Total number of surfaces the heater sends radiation to
101 : Array1D_string SurfaceName; // Surface name in the list of surfaces heater sends radiation to
102 : Array1D_int SurfacePtr; // Surface number in the list of surfaces heater sends radiation to
103 : Array1D<Real64> FracDistribToSurf; // Fraction of fraction radiant incident on the surface
104 : // Other parameters
105 : Real64 ZeroHTRSourceSumHATsurf; // used in baseboard energy balance
106 : Real64 QHTRRadSource; // Need to keep the last value in case we are still iterating
107 : Real64 QHTRRadSrcAvg; // Need to keep the last value in case we are still iterating
108 : Real64 LastSysTimeElapsed; // Need to keep the last value in case we are still iterating
109 : Real64 LastTimeStepSys; // Need to keep the last value in case we are still iterating
110 : Real64 LastQHTRRadSrc; // Need to keep the last value in case we are still iterating
111 :
112 : // Report data
113 : Real64 ElecPower; // system electric consumption in Watts
114 : Real64 ElecEnergy; // system electric consumption in Joules
115 : Real64 GasPower; // system gas consumption in Watts
116 : Real64 GasEnergy; // system gas consumption in Joules
117 : Real64 HeatPower; // actual heating sent to zone (convective and radiative) in Watts
118 : Real64 HeatEnergy; // actual heating sent to zone (convective and radiative) in Joules
119 : DataSizing::DesignSizingType HeatingCapMethod; // - Method for High Temperature Radiant heating capacity scalable sizing calculation
120 : // (HeatingDesignCapacity,
121 : // CapacityPerFloorArea, FracOfAutosizedHeatingCapacity)
122 : Real64
123 : ScaledHeatingCapacity; // - High Temperature Radiant scaled maximum heating capacity {W} or scalable variable for sizing in {-}, or {W/m2}
124 :
125 : // Default Constructor
126 2 : HighTempRadiantSystemData()
127 4 : : ZonePtr(0), HeaterType(Constant::eResource::Invalid), MaxPowerCapac(0.0), CombustionEffic(0.0), FracRadiant(0.0), FracLatent(0.0),
128 2 : FracLost(0.0), FracConvect(0.0), ControlType(RadControlType::Invalid), ThrottlRange(0.0), FracDistribPerson(0.0), TotSurfToDistrib(0),
129 2 : ZeroHTRSourceSumHATsurf(0.0), QHTRRadSource(0.0), QHTRRadSrcAvg(0.0), LastSysTimeElapsed(0.0), LastTimeStepSys(0.0),
130 2 : LastQHTRRadSrc(0.0), ElecPower(0.0), ElecEnergy(0.0), GasPower(0.0), GasEnergy(0.0), HeatPower(0.0), HeatEnergy(0.0),
131 2 : HeatingCapMethod(DataSizing::DesignSizingType::Invalid), ScaledHeatingCapacity(0.0)
132 : {
133 2 : }
134 : };
135 :
136 : struct HighTempRadSysNumericFieldData
137 : {
138 : // Members
139 : Array1D_string FieldNames;
140 :
141 : // Default Constructor
142 2 : HighTempRadSysNumericFieldData()
143 2 : {
144 2 : }
145 : };
146 :
147 : // Functions
148 :
149 : void SimHighTempRadiantSystem(EnergyPlusData &state,
150 : std::string_view CompName, // name of the low temperature radiant system
151 : bool const FirstHVACIteration, // TRUE if 1st HVAC simulation of system timestep
152 : Real64 &LoadMet, // load met by the radiant system, in Watts
153 : int &CompIndex);
154 :
155 : void GetHighTempRadiantSystem(EnergyPlusData &state, bool &ErrorsFound); // Error flag if problems encountered on reading user input
156 :
157 : void InitHighTempRadiantSystem(EnergyPlusData &state,
158 : bool const FirstHVACIteration, // TRUE if 1st HVAC simulation of system timestep
159 : int const RadSysNum // Index for the low temperature radiant system under consideration within the derived types
160 : );
161 :
162 : void SizeHighTempRadiantSystem(EnergyPlusData &state, int const RadSysNum);
163 :
164 : void CalcHighTempRadiantSystem(EnergyPlusData &state, int const RadSysNum); // name of the low temperature radiant system
165 :
166 : void CalcHighTempRadiantSystemSP(EnergyPlusData &state,
167 : bool const FirstHVACIteration, // true if this is the first HVAC iteration at this system time step !unused1208
168 : int const RadSysNum // name of the low temperature radiant system
169 : );
170 :
171 : void UpdateHighTempRadiantSystem(EnergyPlusData &state,
172 : int const RadSysNum, // Index for the low temperature radiant system under consideration within the derived types
173 : Real64 &LoadMet // load met by the radiant system, in Watts
174 : );
175 :
176 : void UpdateHTRadSourceValAvg(EnergyPlusData &state, bool &HighTempRadSysOn); // .TRUE. if the radiant system has run this zone time step
177 :
178 : void DistributeHTRadGains(EnergyPlusData &state);
179 :
180 : void ReportHighTempRadiantSystem(EnergyPlusData &state,
181 : int RadSysNum); // Index for the low temperature radiant system under consideration within the derived types
182 :
183 : } // namespace HighTempRadiantSystem
184 :
185 : struct HighTempRadiantSystemData : BaseGlobalStruct
186 : {
187 :
188 : // Standard, run-of-the-mill variables...
189 : int NumOfHighTempRadSys = 0; // Number of hydronic low tempererature radiant systems
190 : Array1D_bool MySizeFlag;
191 : Array1D_bool CheckEquipName;
192 :
193 : // Object Data
194 : Array1D<HighTempRadiantSystem::HighTempRadiantSystemData> HighTempRadSys;
195 : Array1D<HighTempRadiantSystem::HighTempRadSysNumericFieldData> HighTempRadSysNumericFields;
196 :
197 : bool GetInputFlag = true;
198 : bool firstTime = true; // For one-time initializations
199 : bool MyEnvrnFlag = true;
200 : bool ZoneEquipmentListChecked = false; // True after the Zone Equipment List has been checked for items
201 :
202 2126 : void init_constant_state([[maybe_unused]] EnergyPlusData &state) override
203 : {
204 2126 : }
205 :
206 1152 : void init_state([[maybe_unused]] EnergyPlusData &state) override
207 : {
208 1152 : }
209 :
210 2100 : void clear_state() override
211 : {
212 2100 : NumOfHighTempRadSys = 0;
213 2100 : MySizeFlag.clear();
214 2100 : CheckEquipName.clear();
215 :
216 2100 : HighTempRadSys.clear();
217 2100 : HighTempRadSysNumericFields.clear();
218 :
219 2100 : GetInputFlag = true;
220 2100 : firstTime = true;
221 2100 : MyEnvrnFlag = true;
222 2100 : ZoneEquipmentListChecked = false;
223 2100 : }
224 : };
225 :
226 : } // namespace EnergyPlus
227 :
228 : #endif
|
