Line data Source code
1 : // EnergyPlus, Copyright (c) 1996-2023, 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 PondGroundHeatExchanger_hh_INCLUDED
49 : #define PondGroundHeatExchanger_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 : #include <EnergyPlus/Plant/PlantLocation.hh>
59 : #include <EnergyPlus/PlantComponent.hh>
60 :
61 : namespace EnergyPlus {
62 :
63 : // Forward declarations
64 : struct EnergyPlusData;
65 :
66 : namespace PondGroundHeatExchanger {
67 :
68 9 : struct PondGroundHeatExchangerData : PlantComponent
69 : {
70 : // Members
71 : std::string Name; // name of pond GHE
72 : std::string InletNode; // pond inlet fluid node
73 : std::string OutletNode; // pond outlet fluid node
74 : Real64 DesignMassFlowRate; // design flow rate of circulating fluid
75 : Real64 DesignCapacity; // design cooling capacity of pond at
76 : Real64 Depth; // depth of pond
77 : Real64 Area; // area of pond
78 : Real64 TubeInDiameter; // hydronic tube inside diameter
79 : Real64 TubeOutDiameter; // hydronic tube outside diameter
80 : Real64 TubeConductivity; // hydronic tube thermal conductivity
81 : Real64 GrndConductivity; // ground thermal conductivity
82 : Real64 CircuitLength; // length of each circuit
83 : Real64 BulkTemperature; // current pond bulk temperature
84 : Real64 PastBulkTemperature; // past pond bulk temperature
85 : int NumCircuits; // number of circuits in total
86 : int InletNodeNum; // inlet node number
87 : int OutletNodeNum; // oulet node number
88 : int FrozenErrIndex; // for recurring warnings
89 : int ConsecutiveFrozen; // count of time steps consecutive frozen
90 : // loop topology variables
91 : PlantLocation plantLoc;
92 :
93 : // Report data
94 : Real64 InletTemp; // fluid inlet temperature
95 : Real64 OutletTemp; // fluid outlet temperature
96 : Real64 MassFlowRate; // fluid mass flow rate
97 : Real64 PondTemp; // pond bulk temperature
98 : Real64 HeatTransferRate; // total fluid heat transfer rate, Watts
99 : Real64 Energy; // cumulative energy, Joules
100 :
101 : bool OneTimeFlag;
102 : bool MyFlag;
103 : bool setupOutputVarsFlag;
104 :
105 : int WaterIndex;
106 :
107 : bool firstTimeThrough;
108 :
109 : // Default Constructor
110 3 : PondGroundHeatExchangerData()
111 3 : : DesignMassFlowRate(0.0), DesignCapacity(0.0), Depth(0.0), Area(0.0), TubeInDiameter(0.0), TubeOutDiameter(0.0), TubeConductivity(0.0),
112 : GrndConductivity(0.0), CircuitLength(0.0), BulkTemperature(0.0), PastBulkTemperature(0.0), NumCircuits(0), InletNodeNum(0),
113 : OutletNodeNum(0), FrozenErrIndex(0), ConsecutiveFrozen(0), plantLoc{}, InletTemp(0.0), OutletTemp(0.0), MassFlowRate(0.0),
114 : PondTemp(0.0), HeatTransferRate(0.0), Energy(0.0), OneTimeFlag(true), MyFlag(true), setupOutputVarsFlag(true), WaterIndex(0),
115 3 : firstTimeThrough(true)
116 : {
117 3 : }
118 :
119 : void
120 : simulate(EnergyPlusData &state, const PlantLocation &calledFromLocation, bool FirstHVACIteration, Real64 &CurLoad, bool RunFlag) override;
121 :
122 : static PlantComponent *factory(EnergyPlusData &state, std::string const &objectName);
123 :
124 : void getDesignCapacities(
125 : EnergyPlusData &state, const PlantLocation &calledFromLocation, Real64 &MaxLoad, Real64 &MinLoad, Real64 &OptLoad) override;
126 :
127 : void InitPondGroundHeatExchanger(EnergyPlusData &state, bool FirstHVACIteration);
128 :
129 : void setupOutputVars(EnergyPlusData &state);
130 :
131 : void CalcPondGroundHeatExchanger(EnergyPlusData &state);
132 :
133 : Real64 CalcTotalFLux(EnergyPlusData &state, Real64 PondBulkTemp // pond temp for this flux calculation
134 : );
135 :
136 : Real64 CalcEffectiveness(EnergyPlusData &state,
137 : Real64 InsideTemperature, // Temperature of fluid in pipe circuit, in C
138 : Real64 PondTemperature, // Temperature of pond water (i.e. outside the pipe), in C
139 : Real64 massFlowRate // Mass flow rate, in kg/s
140 : );
141 :
142 : Real64 CalcSolarFlux(EnergyPlusData &state) const;
143 :
144 : void UpdatePondGroundHeatExchanger(EnergyPlusData &state);
145 :
146 : void onInitLoopEquip([[maybe_unused]] EnergyPlusData &state, [[maybe_unused]] const PlantLocation &calledFromLocation) override;
147 :
148 : void oneTimeInit(EnergyPlusData &state) override;
149 : };
150 :
151 : void GetPondGroundHeatExchanger(EnergyPlusData &state);
152 :
153 : } // namespace PondGroundHeatExchanger
154 :
155 1542 : struct PondGroundHeatExchangerData : BaseGlobalStruct
156 : {
157 :
158 : bool GetInputFlag = true;
159 : int NumOfPondGHEs = 0;
160 : Array1D<PondGroundHeatExchanger::PondGroundHeatExchangerData> PondGHE;
161 :
162 0 : void clear_state() override
163 : {
164 0 : this->GetInputFlag = true;
165 0 : this->NumOfPondGHEs = 0;
166 0 : this->PondGHE.deallocate();
167 0 : }
168 : };
169 :
170 : } // namespace EnergyPlus
171 :
172 : #endif
|
