model AllElectricCWStorage "Validation of all-electric plant model with buildings loads" extends Modelica.Icons.Example; replaceable package Medium=Buildings.Media.Water constrainedby Modelica.Media.Interfaces.PartialMedium "Main medium (common to CHW, HW and CW)"; replaceable package MediumConWatCoo=Buildings.Media.Water constrainedby Modelica.Media.Interfaces.PartialMedium "Medium in cooler circuit"; parameter String filNam[2]={"modelica://Buildings/Resources/Data/DHC/Loads/Examples/MediumOffice-90.1-2010-5A.mos", "modelica://Buildings/Resources/Data/DHC/Loads/Examples/MediumOffice-90.1-2010-5A.mos"} "Path to file with timeseries loads"; parameter Modelica.Units.SI.Temperature TSetDisSupHea = 273.15+60 "District heating supply temperature set point"; parameter Modelica.Units.SI.Temperature TSetDisSupCoo = 273.15+6 "District cooling supply temperature set point"; replaceable parameter Fluid.Chillers.Data.ElectricReformulatedEIR.ReformEIRChiller_Carrier_19XR_1403kW_7_09COP_VSD datChi( EIRFunT={0.0101739374, 0.0607200115, 0.0003348647, 0.003162578, 0.0002388594, -0.0014121289}, capFunT={0.0387084662, 0.2305017927, 0.0004779504, 0.0178244359, -8.48808e-05, -0.0032406711}, EIRFunPLR={0.4304252832, -0.0144718912, 5.12039e-05, -0.7562386674, 0.5661683373, 0.0406987748, 3.0278e-06, -0.3413411197, -0.000469572, 0.0055009208}, QEva_flow_nominal=sum(loaCoo.QCoo_flow_nominal)/pla.nChi, COP_nominal=2.5, mEva_flow_nominal=-datChi.QEva_flow_nominal/5/4186, mCon_flow_nominal=-datChi.QEva_flow_nominal * (1 + 1/datChi.COP_nominal) / 10 / 4186, TEvaLvg_nominal=TSetDisSupCoo, TEvaLvgMin=277.15, TEvaLvgMax=308.15, TConLvg_nominal=TSetDisSupHea, TConLvgMin=296.15, TConLvgMax=336.15) constrainedby Buildings.Fluid.Chillers.Data.BaseClasses.Chiller "Chiller parameters (each unit)"; replaceable parameter Fluid.Chillers.Data.ElectricReformulatedEIR.Generic datChiHea = datChi constrainedby Buildings.Fluid.Chillers.Data.BaseClasses.Chiller "Chiller parameters (each unit)"; replaceable parameter Fluid.HeatPumps.Data.EquationFitReversible.Generic datHeaPum( dpHeaLoa_nominal=50000, dpHeaSou_nominal=100, hea( mLoa_flow=datHeaPum.hea.Q_flow/10/4186, mSou_flow=1E-4*datHeaPum.hea.Q_flow, Q_flow=sum(loaHea.QHea_flow_nominal)/pla.nHeaPum, P=datHeaPum.hea.Q_flow/2.2, coeQ={-5.64420084,1.95212447,9.96663913,0.23316322,-5.64420084}, coeP={-3.96682255,6.8419453,1.99606939,0.01393387,-3.96682255}, TRefLoa=298.15, TRefSou=253.15), coo( mLoa_flow=0, mSou_flow=0, Q_flow=-1, P=0, coeQ=fill(0, 5), coeP=fill(0, 5), TRefLoa=273.15, TRefSou=273.15)) "Heat pump parameters (each unit)"; // Assumptions parameter Modelica.Fluid.Types.Dynamics energyDynamics= Modelica.Fluid.Types.Dynamics.FixedInitial "Type of energy balance: dynamic (3 initialization options) or steady state"; Buildings.DHC.Plants.Combined.AllElectricCWStorage pla( redeclare final package Medium = Medium, redeclare package MediumHea_b = Medium, redeclare final package MediumConWatCoo = MediumConWatCoo, allowFlowReversal=true, dpConWatCooFri_nominal=1E4, mAirCooUni_flow_nominal=pla.mConWatCoo_flow_nominal/pla.nCoo/1.45, TWetBulCooEnt_nominal=297.05, PFanCoo_nominal=340*pla.mConWatCoo_flow_nominal/pla.nCoo, chi(show_T=true), chiHea(show_T=true), heaPum(show_T=true), final datChi=datChi, final datChiHea=datChiHea, final datHeaPum=datHeaPum, nChi=2, dpChiWatSet_max=(sum(disCoo.lDis) + disCoo.lEnd)*disCoo.dp_length_nominal, nChiHea=2, dpHeaWatSet_max=(sum(disHea.lDis) + disHea.lEnd)*disHea.dp_length_nominal, nHeaPum=2, dInsTan=0.05, nCoo=3, final energyDynamics=energyDynamics) "CHW and HW plant"; Buildings.Controls.OBC.CDL.Reals.Sources.Constant TChiWatSupSet(final k=pla.TChiWatSup_nominal, y(final unit="K", displayUnit="degC")) "Source signal for setpoint"; Buildings.Controls.OBC.CDL.Reals.Sources.Constant THeaWatSupSet(final k=pla.THeaWatSup_nominal, y(final unit="K", displayUnit="degC")) "Source signal for setpoint"; Buildings.Controls.OBC.CDL.Reals.Sources.Constant dpHeaWatSet_max( k=pla.dpHeaWatSet_max, y(final unit="Pa")) "Source signal for setpoint"; Buildings.Controls.OBC.CDL.Reals.Sources.Constant dpChiWatSet_max( k=pla.dpChiWatSet_max, y(final unit="Pa")) "Source signal for setpoint"; BoundaryConditions.WeatherData.ReaderTMY3 weaDat(filNam= Modelica.Utilities.Files.loadResource("modelica://Buildings/Resources/weatherdata/USA_CA_San.Francisco.Intl.AP.724940_TMY3.mos")) "Outdoor conditions"; Buildings.Controls.OBC.CDL.Reals.Sources.Constant TChiWatRet[2](each k=pla.TChiWatRet_nominal) "Source signal for CHW return temperature"; Loads.Heating.BuildingTimeSeriesWithETS loaHea[2]( each THeaWatSup_nominal=pla.THeaWatSup_nominal, filNam=filNam) "Building heating load"; // dpCheVal_nominal to avoid too hot water in building waterr supply due to problem of temperature drop in Dymola Loads.Cooling.BuildingTimeSeriesWithETS loaCoo[2]( each TChiWatSup_nominal=pla.TChiWatSup_nominal, filNam=filNam, each bui(w_aLoaCoo_nominal=0.015)) "Building cooling load"; // dpCheVal_nominal to avoid freezing in building waterr supply due to problem of temperature drop in Dymola Buildings.Controls.OBC.CDL.Reals.Sources.Constant THeaWatRet[2](each k=pla.THeaWatRet_nominal) "Source signal for HW return temperature"; Buildings.Controls.OBC.CDL.Logical.Not onPla "On signal for the plant"; Buildings.Controls.OBC.CDL.Logical.Timer tim(t=3600); Buildings.Controls.OBC.CDL.Reals.LessThreshold offHea(t=1e-4) "Threshold comparison to disable the plant"; Modelica.Blocks.Math.Gain norQFloHea(k=1/sum(loaHea.QHea_flow_nominal)) "Normalized Q_flow"; Buildings.Controls.OBC.CDL.Logical.Not onPla1 "On signal for the plant"; Buildings.Controls.OBC.CDL.Logical.Timer tim1(t=3600); Buildings.Controls.OBC.CDL.Reals.LessThreshold offCoo1(t=1e-4) "Threshold comparison to disable the plant"; Modelica.Blocks.Math.Gain norQFloCoo(k=1/sum(loaCoo.QCoo_flow_nominal)) "Normalized Q_flow"; Buildings.DHC.Networks.Distribution2Pipe_R disHea( redeclare final package Medium = Medium, nCon=2, allowFlowReversal=false, mDis_flow_nominal=sum(loaHea.mBui_flow_nominal), mCon_flow_nominal={loaHea[1].mBui_flow_nominal,loaHea[2].mBui_flow_nominal}, mEnd_flow_nominal=sum(loaHea.mBui_flow_nominal), lDis={800,200}, lEnd=200) "Distribution network for district heating system"; Buildings.DHC.Networks.Distribution2Pipe_R disCoo( redeclare final package Medium = Medium, nCon=2, allowFlowReversal=false, mDis_flow_nominal=sum(loaCoo.mBui_flow_nominal), mCon_flow_nominal={loaCoo[1].mBui_flow_nominal,loaCoo[2].mBui_flow_nominal}, mEnd_flow_nominal=sum(loaCoo.mBui_flow_nominal), lDis={80,20}, lEnd=20) "Distribution network for district cooling system"; Modelica.Blocks.Math.Sum QTotHea_flow(nin=2) "Total heating flow rate for all buildings "; Modelica.Blocks.Math.Sum QTotCoo_flow(nin=2) "Total cooling flow rate for all buildings "; equation connect(TChiWatSupSet.y, pla.TChiWatSupSet); connect(THeaWatSupSet.y, pla.THeaWatSupSet); connect(dpChiWatSet_max.y, pla.dpChiWatSet); connect(dpHeaWatSet_max.y, pla.dpHeaWatSet); connect(weaDat.weaBus, pla.weaBus); connect(norQFloHea.y,offHea. u); connect(offHea.y, tim.u); connect(tim.passed, onPla.u); connect(onPla.y, pla.u1Hea); connect(tim1.passed, onPla1.u); connect(offCoo1.y, tim1.u); connect(norQFloCoo.y, offCoo1.u); connect(onPla1.y, pla.u1Coo); connect(pla.port_bSerHea, disHea.port_aDisSup); connect(disHea.port_bDisRet, pla.port_aSerHea); connect(disCoo.port_aDisSup, pla.port_bSerCoo); connect(disCoo.port_bDisRet, pla.port_aSerCoo); connect(disCoo.ports_aCon, loaCoo.port_bSerCoo); connect(disCoo.ports_bCon, loaCoo.port_aSerCoo); connect(disHea.ports_bCon, loaHea.port_aSerHea); connect(loaHea.port_bSerHea, disHea.ports_aCon); connect(QTotHea_flow.y, norQFloHea.u); connect(loaCoo.QCoo_flow, QTotCoo_flow.u); connect(QTotCoo_flow.y, norQFloCoo.u); connect(loaHea.QHea_flow, QTotHea_flow.u); connect(TChiWatRet.y,loaCoo.TDisRetSet); connect(THeaWatRet.y,loaHea.TDisRetSet); end AllElectricCWStorage;