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47 :
48 : #ifndef EcoRoofManager_hh_INCLUDED
49 : #define EcoRoofManager_hh_INCLUDED
50 :
51 : // EnergyPlus Headers
52 : #include <EnergyPlus/Data/BaseData.hh>
53 : #include <EnergyPlus/EnergyPlus.hh>
54 :
55 : namespace EnergyPlus {
56 :
57 : // Forward declarations
58 : struct EnergyPlusData;
59 :
60 : namespace EcoRoofManager {
61 :
62 : // Functions
63 :
64 : void CalcEcoRoof(EnergyPlusData &state,
65 : int const SurfNum, // Indicator of Surface Number for the current surface
66 : int const ZoneNum, // Indicator for zone number where the current surface
67 : int const ConstrNum, // Indicator for construction index for the current surface
68 : Real64 &TempExt // Exterior temperature boundary condition
69 : );
70 :
71 : void initEcoRoofFirstTime(EnergyPlusData &state, int const SurfNum, int const ConstrNum);
72 :
73 : void initEcoRoof(EnergyPlusData &state, int const SurfNum, int const ConstrNum);
74 :
75 : void UpdateSoilProps(EnergyPlusData &state,
76 : Real64 &Moisture,
77 : Real64 &MeanRootMoisture,
78 : Real64 const MoistureMax,
79 : Real64 const MoistureResidual,
80 : Real64 const SoilThickness,
81 : Real64 const Vfluxf, // Water mass flux from vegetation [m/s]
82 : Real64 const Vfluxg, // Water mass flux from soil surface [m/s]
83 : int const ConstrNum, // Indicator for construction index for the current surface
84 : Real64 &Alphag,
85 : int const unit, // unused1208
86 : Real64 const Tg, // unused1208
87 : Real64 const Tf, // unused1208
88 : Real64 const Qsoil // unused1208
89 : );
90 :
91 : void CalculateEcoRoofSolar(EnergyPlusData &state,
92 : Real64 &RS, // Solar radiation on a horizontal surface (roof)
93 : Real64 &f1, // Solar term in Stomatal Resistance
94 : int const SurfNum);
95 :
96 : } // namespace EcoRoofManager
97 :
98 771 : struct EcoRoofManagerData : BaseGlobalStruct
99 : {
100 :
101 : Real64 CumRunoff; // Cumulative runoff, updated each time step (m) mult by roof area to get volume
102 : Real64 CumET; // Cumulative evapotranspiration from soil and plants (m)
103 : Real64 CumPrecip;
104 : Real64 CumIrrigation; // Cumulative irrigation, updated each time step (m) mult by roof area to get volume
105 : std::array<Real64, 12> MonthlyIrrigation = {0.0}; // accumulator for monthly irrigation ActualAmount in mm
106 : Real64 CurrentRunoff;
107 : Real64 CurrentET;
108 : Real64 CurrentPrecipitation; // units of (m) per timestep
109 : Real64 CurrentIrrigation; // units of (m) per timestep
110 :
111 : Real64 Tfold; // leaf temperature from the previous time step
112 : Real64 Tgold; // ground temperature from the previous time step
113 : bool EcoRoofbeginFlag = true;
114 : bool CalcEcoRoofMyEnvrnFlag = true;
115 :
116 : // static variables extracted from functions
117 : int FirstEcoSurf = 0; // Indicates lowest numbered surface that is an ecoroof, used to determine WHEN to updatesoilProps...
118 : bool QuickConductionSurf = false; // indicator for quick conduction surface
119 : Real64 LAI = 0.2; // Leaf area index
120 : Real64 epsilonf = 0.95; // Leaf Emisivity
121 : Real64 epsilong = 0.95; // Soil Emisivity
122 : Real64 Alphag = 0.3; // Ground Albedo
123 : Real64 Alphaf = 0.2; // Leaf Albedo (reflectivity to solar radiation)
124 : Real64 e0 = 2.0; // Windless lower limit of exchange coefficient (from FASST docs)
125 : Real64 RH = 50.0; // Relative humidity (%)
126 : Real64 Pa = 101325.0; // Atmospheric Pressure (PA)
127 : Real64 Tg = 10.0; // Ground Surface temperature C ***** FROM PREVIOUS TIME STEP
128 : Real64 Tf = 10.0; // Leaf temperature C ***** FROM PREVIOUS TIME STEP
129 : Real64 Zf = 0.2; // Height of plants (m)
130 : // DJS Oct 2007 release - note I got rid of the initialization of moisture and meanrootmoisture here as these
131 : // values are now set at beginning of each new DD and each new warm-up loop.
132 : Real64 Moisture = 0.0; // m^3/m^3.The moisture content in the soil is the value provided by a user
133 : Real64 MoistureResidual =
134 : 0.05; // m^3/m^3. Residual & maximum water contents are unique to each material. See Frankenstein et al (2004b) for data.
135 : Real64 MoistureMax = 0.5; // Maximum volumetric moisture content (porosity) m^3/m^3
136 : Real64 MeanRootMoisture = 0.0; // Mean value of root moisture m^3/m^3
137 : Real64 SoilThickness = 0.2; // Soil thickness (m)
138 : Real64 StomatalResistanceMin = 0.0; // s/m . ! Minimum stomatal resistance is unique for each veg. type.
139 : Real64 f3 = 1.0; // As the value of gd for tall grass is 0, then f3 = 1
140 : // ECMWF 2002 CY25R1 report has gd=0.0 for all veg except trees where gd=0.03.
141 : Real64 Zog = 0.001; // Ground roughness length scale (m)
142 : Real64 Za = 2.0; // Instrument height where atmospheric wind speed is measured (m)
143 : Real64 Lf = 0.0; // latent heat flux
144 : Real64 Vfluxf = 0.0; // Water evapotr. rate associated with latent heat from vegetation [m/s]
145 : Real64 Qsoil = 0.0; // heat flux from the soil layer
146 : Real64 sheatf = 0.0; // sensible heat flux coeff for foliage (W/m^2K)
147 : Real64 sensiblef = 0.0; // sensible heat transfer TO foliage (W/m^2) DJS Jan 2011
148 : Real64 sheatg = 0.0; // intermediate calculation variable - sensible flux coef (W/m^2K for ground)
149 : Real64 sensibleg = 0.0; // sensible heat flux TO ground (w/m^2) DJS Jan 2011
150 : Real64 Lg = 0.0; // latent heat flux from ground surface
151 : Real64 Vfluxg = 0.0; // Water evapotr. rate associated with latent heat from ground surface [m/s]
152 : Real64 TopDepth = 0.0; // Thickness of "near-surface" soil layer
153 : Real64 RootDepth = 0.0; // Thickness of "root zone" soil layer //Autodesk Was used uninitialized
154 : // Note TopDepth+RootDepth = thickness of ecoroof soil layer
155 : Real64 TimeStepZoneSec = 0.0; // Seconds per TimeStep
156 : Real64 DryCond = 0.0; // Dry soil value of conductivity
157 : Real64 DryDens = 0.0; // Dry soil value of density
158 : Real64 DryAbsorp = 0.0; // Dry soil value of solar absorptance (1-albedo)
159 : Real64 DrySpecHeat = 0.0; // Dry soil value of specific heat
160 : bool UpdatebeginFlag = true; // one time flag
161 : Real64 CapillaryPotentialTop = -3.8997; // This variable keeps track of the capillary potential of the soil in both layers and time (m)
162 : Real64 CapillaryPotentialRoot = -3.8997; // This variable keeps track of the capillary potential of the soil in both layers and time (m)
163 : Real64 SoilHydroConductivityTop = 8.72e-6; // This is the soil water conductivity in the soil (m/s)
164 : Real64 SoilHydroConductivityRoot = 8.72e-6; // This is the soil water conductivity in the soil (m/s)
165 : Real64 SoilConductivityAveTop = 8.72e-6; // This is the average soil water conductivity (m/s)
166 : Real64 SoilConductivityAveRoot = 8.72e-6;
167 : Real64 RelativeSoilSaturationTop =
168 : 0.0; // Relative Soil Saturation (soil moisture-residual soil moisture)/(saturation soil moisture-residual soil moisture)
169 : Real64 RelativeSoilSaturationRoot = 0.0;
170 : Real64 TestMoisture = 0.15; // This makes sure that the moisture cannot change by too much in each step
171 : int ErrIndex = 0;
172 :
173 0 : void clear_state() override
174 : {
175 0 : this->EcoRoofbeginFlag = true;
176 0 : this->CalcEcoRoofMyEnvrnFlag = true;
177 0 : this->FirstEcoSurf = 0;
178 0 : this->QuickConductionSurf = false;
179 0 : this->LAI = 0.2;
180 0 : this->epsilonf = 0.95;
181 0 : this->epsilong = 0.95;
182 0 : this->Alphag = 0.3;
183 0 : this->Alphaf = 0.2;
184 0 : this->e0 = 2.0;
185 0 : this->RH = 50.0;
186 0 : this->Pa = 101325.0;
187 0 : this->Tg = 10.0;
188 0 : this->Tf = 10.0;
189 0 : this->Zf = 0.2;
190 0 : this->Moisture = 0.0;
191 0 : this->MoistureResidual = 0.05;
192 0 : this->MoistureMax = 0.5;
193 0 : this->MeanRootMoisture = 0.0;
194 0 : this->SoilThickness = 0.2;
195 0 : this->StomatalResistanceMin = 0.0;
196 0 : this->f3 = 1.0;
197 0 : this->Zog = 0.001;
198 0 : this->Za = 2.0;
199 0 : this->Lf = 0.0;
200 0 : this->Vfluxf = 0.0;
201 0 : this->Qsoil = 0.0;
202 0 : this->sheatf = 0.0;
203 0 : this->sensiblef = 0.0;
204 0 : this->sheatg = 0.0;
205 0 : this->sensibleg = 0.0;
206 0 : this->Lg = 0.0;
207 0 : this->Vfluxg = 0.0;
208 0 : this->TopDepth = 0.0;
209 0 : this->RootDepth = 0.0;
210 : // Note TopDepth+RootDepth = thickness of e
211 0 : this->TimeStepZoneSec = 0.0;
212 0 : this->DryCond = 0.0;
213 0 : this->DryDens = 0.0;
214 0 : this->DryAbsorp = 0.0;
215 0 : this->DrySpecHeat = 0.0;
216 0 : this->UpdatebeginFlag = true;
217 0 : this->CapillaryPotentialTop = -3.8997;
218 0 : this->CapillaryPotentialRoot = -3.8997;
219 0 : this->SoilHydroConductivityTop = 8.72e-6;
220 0 : this->SoilHydroConductivityRoot = 8.72e-6;
221 0 : this->SoilConductivityAveTop = 8.72e-6;
222 0 : this->SoilConductivityAveRoot = 8.72e-6;
223 0 : this->RelativeSoilSaturationTop = 0.0;
224 0 : this->RelativeSoilSaturationRoot = 0.0;
225 0 : this->TestMoisture = 0.15;
226 0 : this->ErrIndex = 0;
227 0 : }
228 : };
229 :
230 : } // namespace EnergyPlus
231 :
232 : #endif
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