Buildings.HeatTransfer.Windows.BaseClasses.Examples

Name	Description
AbsorbedRadiation	Test model for absorbed radiation by windows
AbsorbedRadiationElectrochromic	Test model for absorbed radiation for electrochromic window
CenterOfGlass	Test model for center of glas heat transfer
GasConvection	Test problem for convection in the gas layer
GlassLayer	Test model for glass layer heat transfer
InteriorConvection	Test model for the interior heat transfer due to convection
Overhang	Test model for the overhang
Shade	Test model for exterior shade heat transfer
SideFins	Test model for side fins
TransmittedRadiation	Test model for transmitted radiation through window
WindowRadiation	Test model for window radiation
WindowRadiationElectrochromic	Test model for window radiation for an electrochromic window

Type	Name	Default	Description
Angle	lat	0.34906585039887	Latitude [rad]
Angle	azi	0	Surface azimuth [rad]
Angle	til	1.5707963267949	Surface tilt [rad]
DoubleClearAir13Clear	glaSys	redeclare parameter Building...	Parameters for glazing system

Type	Name	Description
Bus	weaBus

model AbsorbedRadiation "Test model for absorbed radiation by windows" extends Modelica.Icons.Example; parameter Modelica.SIunits.Angle lat=0.34906585039887 "Latitude"; parameter Modelica.SIunits.Angle azi=0 "Surface azimuth"; parameter Modelica.SIunits.Angle til=1.5707963267949 "Surface tilt"; replaceable parameter Buildings.HeatTransfer.Data.GlazingSystems.DoubleClearAir13Clear glaSys( shade=Buildings.HeatTransfer.Data.Shades.Gray(), UFra=2, haveExteriorShade=false, haveInteriorShade=true) constrainedby Data.GlazingSystems.Generic "Parameters for glazing system"; BoundaryConditions.SolarIrradiation.DirectTiltedSurface HDirTil( til=til, lat=lat, azi=azi); BoundaryConditions.WeatherData.Bus weaBus; BoundaryConditions.WeatherData.ReaderTMY3 weaDat(filNam= "modelica://Buildings/Resources/weatherdata/USA_IL_Chicago-OHare.Intl.AP.725300_TMY3.mos", computeWetBulbTemperature=false); BoundaryConditions.SolarIrradiation.DiffuseIsotropic HDifTilIso( til=til); Modelica.Blocks.Sources.Constant shaCon(k=if (glaSys.haveShade) then 0.5 else 0); Buildings.HeatTransfer.Windows.BaseClasses.AbsorbedRadiation winAbs( AWin=1, N=size(glaSys.glass, 1), tauGlaSol = glaSys.glass.tauSol, rhoGlaSol_a=glaSys.glass.rhoSol_a, rhoGlaSol_b=glaSys.glass.rhoSol_b, xGla=glaSys.glass.x, tauShaSol_a=glaSys.shade.tauSol_a, tauShaSol_b=glaSys.shade.tauSol_b, rhoShaSol_a=glaSys.shade.rhoSol_a, rhoShaSol_b=glaSys.shade.rhoSol_b, haveExteriorShade=glaSys.haveExteriorShade, haveInteriorShade=glaSys.haveInteriorShade); Modelica.Blocks.Sources.Constant HRoo(k=10); equation connect(weaDat.weaBus, weaBus); connect(HDirTil.weaBus, weaBus); connect(weaBus, HDifTilIso.weaBus); connect(shaCon.y,winAbs. uSha); connect(winAbs.HDir, HDirTil.H); connect(HDifTilIso.H,winAbs. HDif); connect(HDirTil.inc,winAbs. incAng); connect(HRoo.y,winAbs. HRoo); end AbsorbedRadiation;

Buildings.HeatTransfer.Windows.BaseClasses.Examples.AbsorbedRadiationElectrochromic

Information

Parameters

Connectors

Modelica definition

Type	Name	Default	Description
Angle	lat	0.34906585039887	Latitude [rad]
Angle	azi	0	Surface azimuth [rad]
Angle	til	1.5707963267949	Surface tilt [rad]

Type	Name	Description
Bus	weaBus

model AbsorbedRadiationElectrochromic "Test model for absorbed radiation for electrochromic window" extends AbsorbedRadiation(redeclare Data.GlazingSystems.DoubleElectrochromicAir13Clear glaSys); end AbsorbedRadiationElectrochromic;

Buildings.HeatTransfer.Windows.BaseClasses.Examples.CenterOfGlass

Information

Parameters

Modelica definition

Type	Name	Default	Description
Area	A	1	Window surface area [m2]
Boolean	linearize	false	Set to true to linearize emissive power
DoubleClearAir13Clear	glaSys		Parameters for glazing system

model CenterOfGlass "Test model for center of glas heat transfer" extends Modelica.Icons.Example; parameter Modelica.SIunits.Area A=1 "Window surface area"; parameter Boolean linearize = false "Set to true to linearize emissive power"; Buildings.HeatTransfer.Windows.BaseClasses.CenterOfGlass sha( A=A, linearize=linearize, til=1.5707963267949, glaSys=glaSys) "Model for fraction of window that has a shade"; Modelica.Blocks.Sources.Ramp uSha( height=0.9, duration=1, offset=0.05) "Control signal for shade"; Buildings.HeatTransfer.Sources.PrescribedTemperature TAirOut "Outside air temperature"; Modelica.Blocks.Sources.Constant TOut(k=273.15) "Outside temperature"; Buildings.HeatTransfer.Sources.PrescribedTemperature TAirRoo "Room temperature"; Buildings.HeatTransfer.Radiosity.OpaqueSurface radIn(A=A, absIR=0.8, linearize=false) "Model for inside radiosity"; Modelica.Blocks.Sources.Constant TRoo(k=293.15) "Room temperature"; Buildings.HeatTransfer.Sources.PrescribedTemperature TRadRoo "Room radiative temperature"; Buildings.HeatTransfer.Radiosity.RadiositySplitter radShaInt "Radiosity that strikes shading device"; Buildings.HeatTransfer.Windows.BaseClasses.CenterOfGlass nonSha( A=A, linearize=linearize, til=1.5707963267949, glaSys=glaSys) "Model for fraction of window that has no shade"; Buildings.HeatTransfer.Radiosity.RadiositySplitter radShaOut "Radiosity that strikes shading device"; parameter Buildings.HeatTransfer.Data.GlazingSystems.DoubleClearAir13Clear glaSys( shade=Buildings.HeatTransfer.Data.Shades.Gray(), haveExteriorShade=true, haveInteriorShade=true, UFra=2) "Parameters for glazing system"; Buildings.HeatTransfer.Radiosity.OutdoorRadiosity radOut(A=A, vieFacSky=0.5) "Outdoor radiosity"; Modelica.Thermal.HeatTransfer.Components.Convection conRooSha "Convection for room-facing surface of shaded part of window"; Modelica.Thermal.HeatTransfer.Components.Convection conOutSha "Convection for outside-facing surface of shaded part of window"; Modelica.Thermal.HeatTransfer.Components.Convection conOutNonSha1 "Convection for outside-facing surface of non-shaded part of window"; Modelica.Thermal.HeatTransfer.Components.Convection conRooNonSha "Convection for room-facing surface of non-shaded part of window"; Modelica.Blocks.Sources.Constant hA(k=4*A) "Convection coefficient times total area"; Modelica.Blocks.Math.Product hASha "Convection of shaded part of window"; Modelica.Blocks.Math.Product hANonSha "Convection of non-shaded part of window"; Buildings.HeatTransfer.Windows.BaseClasses.ShadingSignal shaCon(haveShade= glaSys.haveExteriorShade or glaSys.haveInteriorShade) "Bounds the shading signal"; Modelica.Blocks.Sources.Constant QAbs[size(glaSys.glass, 1)](each k=0) "Solar radiation absorbed by glass"; Modelica.Blocks.Math.MultiSum sumJ(nu=2) "Sum of radiosities from the two surfaces"; equation connect(TOut.y, TAirOut.T); connect(TRoo.y, TAirRoo.T); connect(TRadRoo.port, radIn.heatPort); connect(TRadRoo.T, TRoo.y); connect(radIn.JOut, radShaInt.JIn); connect(radOut.JOut, radShaOut.JIn); connect(hA.y, hANonSha.u1); connect(hASha.u1, hA.y); connect(hASha.y, conOutSha.Gc); connect(hASha.y, conRooSha.Gc); connect(hANonSha.y, conOutNonSha1.Gc); connect(hANonSha.y, conRooNonSha.Gc); connect(conOutSha.solid, sha.glass_a); connect(conOutSha.fluid, TAirOut.port); connect(nonSha.glass_a, conOutNonSha1.solid); connect(conOutNonSha1.fluid, TAirOut.port); connect(nonSha.glass_b, conRooNonSha.solid); connect(conRooNonSha.fluid, TAirRoo.port); connect(conRooSha.fluid, TAirRoo.port); connect(conRooSha.solid, sha.glass_b); connect(radShaOut.JOut_1, sha.JIn_a); connect(radShaOut.JOut_2, nonSha.JIn_a); connect(radShaInt.JOut_1, sha.JIn_b); connect(radShaInt.JOut_2, nonSha.JIn_b); connect(shaCon.yCom, hANonSha.u2); connect(shaCon.yCom, nonSha.u); connect(shaCon.y, radShaOut.u); connect(shaCon.y, radShaInt.u); connect(shaCon.y, sha.u); connect(uSha.y, shaCon.u); connect(shaCon.y, hASha.u2); connect(QAbs.y, nonSha.QAbs_flow); connect(QAbs.y, sha.QAbs_flow); connect(radOut.TOut, TOut.y); connect(TOut.y, radOut.TBlaSky); connect(radIn.JIn, sumJ.y); connect(sha.JOut_b, sumJ.u[1]); connect(nonSha.JOut_b, sumJ.u[2]); end CenterOfGlass;

Buildings.HeatTransfer.Windows.BaseClasses.Examples.GasConvection

Information

Modelica definition

model GasConvection "Test problem for convection in the gas layer" extends Modelica.Icons.Example; Buildings.HeatTransfer.Windows.BaseClasses.GasConvection conVer( A=1, linearize=false, gas=Buildings.HeatTransfer.Data.Gases.Air(x=0.1), til=Buildings.Types.Tilt.Wall) "Model for gas convection in vertical gap"; Modelica.Blocks.Sources.Ramp TBC( duration=1, offset=283.15, height=20) "Boundary condition for temperature"; Buildings.HeatTransfer.Sources.PrescribedTemperature T_a1 "Exterior-side temperature"; Buildings.HeatTransfer.Sources.FixedTemperature T_b1(T=293.15) "Room-side temperature"; Modelica.Blocks.Sources.Constant u(k=1) "Shading control signal"; Buildings.HeatTransfer.Windows.BaseClasses.GasConvection conCei( A=1, linearize=false, gas=Buildings.HeatTransfer.Data.Gases.Air(x=0.1), til=Buildings.Types.Tilt.Ceiling) "Model for gas convection in horizontal gap in a ceiling"; Buildings.HeatTransfer.Sources.PrescribedTemperature T_a2 "Exterior-side temperature"; Buildings.HeatTransfer.Sources.FixedTemperature T_b2(T=293.15) "Room-side temperature"; Buildings.HeatTransfer.Windows.BaseClasses.GasConvection conFlo( A=1, linearize=false, gas=Buildings.HeatTransfer.Data.Gases.Air(x=0.1), til=Buildings.Types.Tilt.Floor) "Model for gas convection in horizontal gap in a floor"; Buildings.HeatTransfer.Sources.PrescribedTemperature T_a3 "Exterior-side temperature"; Buildings.HeatTransfer.Sources.FixedTemperature T_b3(T=293.15) "Room-side temperature"; equation connect(TBC.y, T_a1.T); connect(T_a1.port, conVer.port_a); connect(conVer.port_b, T_b1.port); connect(u.y, conVer.u); connect(TBC.y, T_a2.T); connect(T_a2.port, conCei.port_a); connect(conCei.port_b, T_b2.port); connect(u.y, conCei.u); connect(TBC.y, T_a3.T); connect(T_a3.port, conFlo.port_a); connect(conFlo.port_b, T_b3.port); connect(u.y, conFlo.u); end GasConvection;

Buildings.HeatTransfer.Windows.BaseClasses.Examples.GlassLayer

Information

Parameters

Modelica definition

Type	Name	Default	Description
Area	A	1	Window surface area [m2]
Boolean	linearize	false	Set to true to linearize emissive power

model GlassLayer "Test model for glass layer heat transfer" extends Modelica.Icons.Example; parameter Modelica.SIunits.Area A=1 "Window surface area"; parameter Boolean linearize = false "Set to true to linearize emissive power"; Buildings.HeatTransfer.Windows.BaseClasses.GlassLayer sha( A=A, absIR_a=0.5, tauIR=0.2, x=0.015, k=1, linearize=linearize, absIR_b=0.5) "Model for fraction of window that has a shade"; Buildings.HeatTransfer.Sources.PrescribedTemperature TAirOut "Outside air temperature"; Modelica.Blocks.Sources.Constant TOut(k=273.15) "Outside temperature"; Buildings.HeatTransfer.Sources.PrescribedTemperature TAirRoo "Room temperature"; Buildings.HeatTransfer.Radiosity.OpaqueSurface radOut(A=A, absIR=0.8, linearize=false) "Model for outside radiosity"; Buildings.HeatTransfer.Sources.PrescribedTemperature TRadOut "Outside radiative temperature"; Buildings.HeatTransfer.Radiosity.OpaqueSurface radIn(A=A, absIR=0.8, linearize=false) "Model for inside radiosity"; Modelica.Blocks.Sources.Constant TRoo(k=293.15) "Room temperature"; Buildings.HeatTransfer.Sources.PrescribedTemperature TRadRoo "Room radiative temperature"; Modelica.Blocks.Sources.Constant QAbs_flow(k=0) "Absorbed solar heat flow"; Buildings.HeatTransfer.Radiosity.RadiositySplitter radShaInt "Radiosity that strikes shading device"; Buildings.HeatTransfer.Windows.BaseClasses.GlassLayer nonSha( A=A, absIR_a=0.5, tauIR=0.2, x=0.015, k=1, linearize=linearize, absIR_b=0.5) "Model for fraction of window that has no shade"; Buildings.HeatTransfer.Radiosity.RadiositySplitter radShaOut "Radiosity that strikes shading device"; Modelica.Thermal.HeatTransfer.Components.Convection conRooSha "Convection for room-facing surface of shaded part of window"; Modelica.Thermal.HeatTransfer.Components.Convection conRooNonSha "Convection for room-facing surface of non-shaded part of window"; Modelica.Blocks.Sources.Constant hA(k=4*A) "Convection coefficient times total area"; Modelica.Blocks.Math.Product hASha "Convection of shaded part of window"; Modelica.Blocks.Math.Product hANonSha "Convection of non-shaded part of window"; Modelica.Thermal.HeatTransfer.Components.Convection conOutSha "Convection for outside-facing surface of shaded part of window"; Modelica.Thermal.HeatTransfer.Components.Convection conOutNonSha1 "Convection for outside-facing surface of non-shaded part of window"; Modelica.Blocks.Sources.Ramp uSha( height=0.9, duration=1, offset=0.05) "Control signal for shade"; Buildings.HeatTransfer.Windows.BaseClasses.ShadingSignal shaCon(haveShade= true) "Bounds the shading signal"; Modelica.Blocks.Math.MultiSum sumJOut(nu=2) "Sum of radiosities at outer surface"; Modelica.Blocks.Math.MultiSum sumJRoo(nu=2) "Sum of radiosities at room surface"; equation connect(TOut.y, TAirOut.T); connect(TRadOut.port, radOut.heatPort); connect(TRadOut.T, TOut.y); connect(TRoo.y, TAirRoo.T); connect(TRadRoo.port, radIn.heatPort); connect(TRadRoo.T, TRoo.y); connect(QAbs_flow.y, sha.QAbs_flow); connect(radShaOut.JIn, radOut.JOut); connect(radIn.JOut, radShaInt.JIn); connect(radShaOut.JOut_1, sha.JIn_a); connect(radShaOut.JOut_2, nonSha.JIn_a); connect(radShaInt.JOut_1, sha.JIn_b); connect(radShaInt.JOut_2, nonSha.JIn_b); connect(QAbs_flow.y, nonSha.QAbs_flow); connect(hA.y, hANonSha.u1); connect(hASha.u1, hA.y); connect(nonSha.port_a, conOutNonSha1.solid); connect(conOutNonSha1.fluid, TAirOut.port); connect(sha.port_a, conOutSha.solid); connect(conOutSha.fluid, TAirOut.port); connect(nonSha.port_b, conRooNonSha.solid); connect(sha.port_b, conRooSha.solid); connect(conRooSha.fluid, TAirRoo.port); connect(conRooNonSha.fluid, TAirRoo.port); connect(hASha.y, conOutSha.Gc); connect(hASha.y, conRooSha.Gc); connect(hANonSha.y, conOutNonSha1.Gc); connect(hANonSha.y, conRooNonSha.Gc); connect(shaCon.yCom, hANonSha.u2); connect(shaCon.yCom, nonSha.u); connect(shaCon.y, radShaOut.u); connect(shaCon.y, radShaInt.u); connect(shaCon.y, sha.u); connect(uSha.y,shaCon. u); connect(shaCon.y, hASha.u2); connect(radOut.JIn, sumJOut.y); connect(sha.JOut_a, sumJOut.u[1]); connect(nonSha.JOut_a, sumJOut.u[2]); connect(radIn.JIn, sumJRoo.y); connect(sha.JOut_b, sumJRoo.u[1]); connect(nonSha.JOut_b, sumJRoo.u[2]); end GlassLayer;

Buildings.HeatTransfer.Windows.BaseClasses.Examples.InteriorConvection

Information

This is a test model for the interior side convective heat transfer. During the simulation, the shading control signal is changed, which causes a change in the convective heat flow rate.

Modelica definition

model InteriorConvection "Test model for the interior heat transfer due to convection" extends Modelica.Icons.Example; Modelica.Blocks.Sources.Ramp uSha( duration=1, height=1, offset=0) "Control signal for shade"; Buildings.HeatTransfer.Windows.BaseClasses.InteriorConvection con(til= Buildings.Types.Tilt.Wall, conMod=Buildings.HeatTransfer.Types.InteriorConvection.Temperature, A=1); Modelica.Thermal.HeatTransfer.Sensors.HeatFlowSensor heaFloSen "Heat flow sensor"; Modelica.Thermal.HeatTransfer.Sources.FixedTemperature TGla(T=295.15) "Glass temperature"; Modelica.Thermal.HeatTransfer.Sources.FixedTemperature TRoo(T=293.15) "Room air temperature"; equation connect(uSha.y, con.u); connect(TGla.port, con.solid); connect(con.fluid, heaFloSen.port_a); connect(heaFloSen.port_b, TRoo.port); end InteriorConvection;

Buildings.HeatTransfer.Windows.BaseClasses.Examples.Overhang

Information

This example uses the basic overhang model with solar angles as input and calculates the fraction of total window area that is exposed to the sun. For a detail description of the solar angles used in the model, see Buildings.BoundaryConditions.SolarGeometry. For a detailed description of the overhang block, see Buildings.HeatTransfer.Windows.BaseClasses.Overhang. The required data for the solar angle calculations is obtained from weather data.

The values of the parameters of the overhang model have been set in such a way that the overhang in non-symmetric with respect to the window center-line.

Connectors

Modelica definition

Type	Name	Description
Bus	weaBus

model Overhang "Test model for the overhang" extends Modelica.Icons.Example; Buildings.BoundaryConditions.SolarGeometry.IncidenceAngle incAng( lat=weaDat.lat, azi=Buildings.Types.Azimuth.S, til=Buildings.Types.Tilt.Wall) "Solar incidence angle on a tilted surface"; Buildings.BoundaryConditions.WeatherData.ReaderTMY3 weaDat(filNam="modelica://Buildings/Resources/weatherdata/USA_IL_Chicago-OHare.Intl.AP.725300_TMY3.mos") "Weather data"; Buildings.HeatTransfer.Windows.BaseClasses.Overhang ove( gap=0.1, azi=Buildings.Types.Azimuth.S, lat=weaDat.lat, wL=0, wR=0.95, dep=0.5, hWin=2, wWin=0.1) "Calculates fraction of window area shaded by the overhang"; Buildings.BoundaryConditions.SolarGeometry.BaseClasses.WallSolarAzimuth walSolAzi "Angle measured in horizontal plane between projection of sun's rays and normal to vertical surface"; Buildings.BoundaryConditions.WeatherData.Bus weaBus; equation connect(weaDat.weaBus, incAng.weaBus); connect(incAng.y, walSolAzi.incAng); connect(walSolAzi.verAzi, ove.verAzi); connect(weaDat.weaBus, ove.weaBus); connect(weaDat.weaBus, weaBus); connect(weaBus.solAlt, walSolAzi.alt); connect(weaBus.solAlt, ove.alt); end Overhang;

Buildings.HeatTransfer.Windows.BaseClasses.Examples.Shade

Information

Parameters

Modelica definition

Type	Name	Default	Description
Area	A	1	Window surface area [m2]
Boolean	linearize	true	Set to true to linearize emissive power

model Shade "Test model for exterior shade heat transfer" extends Modelica.Icons.Example; parameter Modelica.SIunits.Area A=1 "Window surface area"; parameter Boolean linearize = true "Set to true to linearize emissive power"; Buildings.HeatTransfer.Windows.BaseClasses.ShadeRadiation extShaRad( A=A, linearize=false, absIR_air=0.3, absIR_glass=0.3, tauIR_air=0.3, tauIR_glass=0.3, thisSideHasShade=true) "Radiation model of exterior shade"; Modelica.Blocks.Sources.Ramp uSha( height=0.9, duration=1, offset=0.05) "Control signal for shade"; Modelica.Blocks.Sources.Constant TOut(k=273.15) "Outside temperature"; Buildings.HeatTransfer.Radiosity.OpaqueSurface radOut(A=A, absIR=0.8, linearize=false) "Model for outside radiosity"; Buildings.HeatTransfer.Sources.PrescribedTemperature TRadOut "Outside radiative temperature"; Buildings.HeatTransfer.Radiosity.OpaqueSurface radIn(A=A, absIR=0.8, linearize=false) "Model for inside radiosity"; Modelica.Blocks.Sources.Constant TRoo(k=293.15) "Room temperature"; Buildings.HeatTransfer.Sources.PrescribedTemperature TRadRoo "Room radiative temperature"; Modelica.Blocks.Sources.Constant QSol_shade(k=0) "Solar heat flow absorbed by shade"; Buildings.HeatTransfer.Radiosity.RadiositySplitter radShaInt "Radiosity that strikes shading device"; Buildings.HeatTransfer.Windows.BaseClasses.ShadeRadiation extNonShaRad( A=A, linearize=false, thisSideHasShade=false, absIR_air=0, absIR_glass=0, tauIR_air=0.3, tauIR_glass=0.3) "Radiation model for fraction of window that has no shade"; Buildings.HeatTransfer.Radiosity.RadiositySplitter radShaOut "Radiosity that strikes shading device"; Buildings.HeatTransfer.Sources.PrescribedTemperature TAirOut "Outside air temperature"; Buildings.HeatTransfer.Sources.PrescribedTemperature TAirRoo "Room-side air temperature"; Buildings.HeatTransfer.Windows.BaseClasses.ShadingSignal shaCon(haveShade= true); Modelica.Blocks.Math.Gain GConSha(k=10*A, y(unit="W/K")) "Convection coefficient for shade part of window"; Modelica.Blocks.Math.Gain GConUns(k=10*A, y(unit="W/K")) "Convection coefficient for unshade part of window"; Modelica.Blocks.Math.MultiSum sumJRoo(nu=2) "Sum of room side radiosity"; Modelica.Blocks.Math.MultiSum sumJOut(nu=2) "Sum of outdoor side radiosity"; Buildings.HeatTransfer.Windows.BaseClasses.ShadeConvection extShaCon(A=A, thisSideHasShade=true) "Convection model of exterior shade"; Buildings.HeatTransfer.Windows.BaseClasses.ShadeConvection extNonShaCon(A=A, thisSideHasShade=false) "Convection model for fraction of window that has no shade"; equation connect(TRadOut.port, radOut.heatPort); connect(TRadOut.T, TOut.y); connect(TRadRoo.port, radIn.heatPort); connect(TRadRoo.T, TRoo.y); connect(radShaOut.JIn, radOut.JOut); connect(radIn.JOut, radShaInt.JIn); connect(radShaOut.JOut_1, extShaRad.JIn_air); connect(radShaOut.JOut_2, extNonShaRad.JIn_air); connect(radShaInt.JOut_1, extShaRad.JIn_glass); connect(radShaInt.JOut_2, extNonShaRad.JIn_glass); connect(TAirOut.T, TOut.y); connect(TAirRoo.T, TRoo.y); connect(shaCon.y, extShaRad.u); connect(shaCon.y, radShaOut.u); connect(uSha.y, shaCon.u); connect(shaCon.yCom, extNonShaRad.u); connect(GConSha.u, shaCon.y); connect(shaCon.yCom, GConUns.u); connect(shaCon.y, radShaInt.u); connect(radIn.JIn, sumJRoo.y); connect(radOut.JIn, sumJOut.y); connect(TAirRoo.port, extShaCon.glass); connect(TAirRoo.port, extNonShaCon.glass); connect(extShaCon.air, TAirOut.port); connect(extNonShaCon.air, TAirOut.port); connect(GConUns.y, extNonShaCon.Gc); connect(GConSha.y, extShaCon.Gc); connect(extShaCon.TSha, extShaRad.TSha); connect(extShaCon.QRadAbs_flow, extShaRad.QRadAbs_flow); connect(extNonShaRad.TSha, extNonShaCon.TSha); connect(extNonShaRad.QRadAbs_flow, extNonShaCon.QRadAbs_flow); connect(extShaRad.JOut_air, sumJOut.u[1]); connect(extNonShaRad.JOut_air, sumJOut.u[2]); connect(extShaRad.JOut_glass, sumJRoo.u[1]); connect(extNonShaRad.JOut_glass, sumJRoo.u[2]); connect(extShaRad.QSolAbs_flow, QSol_shade.y); connect(extNonShaRad.QSolAbs_flow, QSol_shade.y); end Shade;

Buildings.HeatTransfer.Windows.BaseClasses.Examples.SideFins

Information

This example uses the basic side fins model with solar angles as input and calculates the fraction of total window area that is exposed to the sun. For a detailed description of the solar angles used in the model, see to documentation in the package Buildings.BoundaryConditions.SolarGeometry. For a detail description of side fin model, see Buildings.HeatTransfer.Windows.BaseClasses.SideFins. The required data for the solar angle calculations are obtained from the weather data.

Modelica definition

model SideFins "Test model for side fins" extends Modelica.Icons.Example; Buildings.BoundaryConditions.SolarGeometry.ZenithAngle zen(lat=0.73129295658562) "Zenith angle: angle between the earth surface normal and the sun's beam"; Buildings.BoundaryConditions.SolarGeometry.IncidenceAngle incAng( azi=0, lat=0.73129295658562, til=1.5707963267949) "Solar incidence angle on a tilted surface"; Buildings.BoundaryConditions.WeatherData.ReaderTMY3 weaDat(filNam="modelica://Buildings/Resources/weatherdata/USA_IL_Chicago-OHare.Intl.AP.725300_TMY3.mos") "Weather data"; Buildings.HeatTransfer.Windows.BaseClasses.SideFins fin( gap=0.1, h=0.7, dep=1.0, hWin=1.5, wWin=2.0) "Calculates fraction of window area shaded by the side fins"; Buildings.BoundaryConditions.SolarGeometry.BaseClasses.AltitudeAngle altAng "Altitude angle: Angle between Sun ray and horizontal surface"; Buildings.BoundaryConditions.SolarGeometry.BaseClasses.WallSolarAzimuth walSolAzi "Angle measured in horizontal plane between projection of sun's rays and normal to vertical surface"; equation connect(weaDat.weaBus, zen.weaBus); connect(weaDat.weaBus, incAng.weaBus); connect(zen.y, altAng.zen); connect(altAng.alt, fin.alt); connect(walSolAzi.verAzi, fin.verAzi); connect(altAng.alt, walSolAzi.alt); connect(incAng.y, walSolAzi.incAng); end SideFins;

Buildings.HeatTransfer.Windows.BaseClasses.Examples.TransmittedRadiation

Information

Parameters

Connectors

Modelica definition

Type	Name	Default	Description
Angle	lat	0.34906585039887	Latitude [rad]
Angle	azi	0	Surface azimuth [rad]
Angle	til	1.5707963267949	Surface tilt [rad]
DoubleClearAir13Clear	glaSys		Parameters for glazing system

Type	Name	Description
Bus	weaBus	Weather data bus

model TransmittedRadiation "Test model for transmitted radiation through window" extends Modelica.Icons.Example; parameter Modelica.SIunits.Angle lat=0.34906585039887 "Latitude"; parameter Modelica.SIunits.Angle azi=0 "Surface azimuth"; parameter Modelica.SIunits.Angle til=1.5707963267949 "Surface tilt"; parameter Buildings.HeatTransfer.Data.GlazingSystems.DoubleClearAir13Clear glaSys( shade=Buildings.HeatTransfer.Data.Shades.Gray(), UFra=2, haveExteriorShade=false, haveInteriorShade=true) "Parameters for glazing system"; BoundaryConditions.SolarIrradiation.DirectTiltedSurface HDirTil( til=til, lat=lat, azi=azi) "Direct irradiation on the tilted surface"; BoundaryConditions.WeatherData.Bus weaBus "Weather data bus"; BoundaryConditions.WeatherData.ReaderTMY3 weaDat(filNam= "modelica://Buildings/Resources/weatherdata/USA_IL_Chicago-OHare.Intl.AP.725300_TMY3.mos") "Weather data reader"; BoundaryConditions.SolarIrradiation.DiffuseIsotropic HDifTilIso( til=til) "Diffuse isotropic irradiation"; Modelica.Blocks.Sources.Constant shaCon(k=if (glaSys.haveShade) then 0.5 else 0); Buildings.HeatTransfer.Windows.BaseClasses.TransmittedRadiation winTra( AWin=1, N=size(glaSys.glass, 1), tauGlaSol=glaSys.glass.tauSol, rhoGlaSol_a=glaSys.glass.rhoSol_a, rhoGlaSol_b=glaSys.glass.rhoSol_b, xGla=glaSys.glass.x, tauShaSol_a=glaSys.shade.tauSol_a, tauShaSol_b=glaSys.shade.tauSol_b, rhoShaSol_a=glaSys.shade.rhoSol_a, rhoShaSol_b=glaSys.shade.rhoSol_b, haveExteriorShade=glaSys.haveExteriorShade, haveInteriorShade=glaSys.haveInteriorShade); equation connect(weaDat.weaBus, weaBus); connect(HDirTil.weaBus, weaBus); connect(weaBus, HDifTilIso.weaBus); connect(shaCon.y,winTra. uSha); connect(winTra.HDir, HDirTil.H); connect(HDifTilIso.H,winTra. HDif); connect(HDirTil.inc,winTra. incAng); end TransmittedRadiation;

Buildings.HeatTransfer.Windows.BaseClasses.Examples.WindowRadiation

Information

Parameters

Connectors

Modelica definition

Type	Name	Default	Description
Angle	lat	0.34906585039887	Latitude [rad]
Angle	azi	0	Surface azimuth [rad]
Angle	til	1.5707963267949	Surface tilt [rad]
DoubleClearAir13Clear	glaSys	redeclare parameter Building...	Parameters for glazing system

Type	Name	Description
Bus	weaBus	Weather data bus

model WindowRadiation "Test model for window radiation" extends Modelica.Icons.Example; parameter Modelica.SIunits.Angle lat=0.34906585039887 "Latitude"; parameter Modelica.SIunits.Angle azi=0 "Surface azimuth"; parameter Modelica.SIunits.Angle til=1.5707963267949 "Surface tilt"; replaceable parameter Buildings.HeatTransfer.Data.GlazingSystems.DoubleClearAir13Clear glaSys( shade=Buildings.HeatTransfer.Data.Shades.Gray(), UFra=2, haveExteriorShade=false, haveInteriorShade=true) constrainedby Data.GlazingSystems.Generic "Parameters for glazing system"; BoundaryConditions.SolarIrradiation.DirectTiltedSurface HDirTil( til=til, lat=lat, azi=azi) "Direct irradiation on the tilted surface"; BoundaryConditions.WeatherData.Bus weaBus "Weather data bus"; BoundaryConditions.WeatherData.ReaderTMY3 weaDat(filNam= "modelica://Buildings/Resources/weatherdata/USA_IL_Chicago-OHare.Intl.AP.725300_TMY3.mos") "Weather data reader"; BoundaryConditions.SolarIrradiation.DiffuseIsotropic HDifTilIso( til=til) "Diffuse isotropic irradiation"; Modelica.Blocks.Sources.Constant shaCon(k=if (glaSys.haveShade) then 0.5 else 0); Modelica.Blocks.Math.Gain HRoo(k=0.1) "Solar irradiation from room"; Buildings.HeatTransfer.Windows.BaseClasses.WindowRadiation winRad( AWin=1, N=size(glaSys.glass, 1), tauGlaSol=glaSys.glass.tauSol, rhoGlaSol_a=glaSys.glass.rhoSol_a, rhoGlaSol_b=glaSys.glass.rhoSol_b, xGla=glaSys.glass.x, tauShaSol_a=glaSys.shade.tauSol_a, tauShaSol_b=glaSys.shade.tauSol_b, rhoShaSol_a=glaSys.shade.rhoSol_a, rhoShaSol_b=glaSys.shade.rhoSol_b, haveExteriorShade=glaSys.haveExteriorShade, haveInteriorShade=glaSys.haveInteriorShade); equation connect(weaDat.weaBus, weaBus); connect(HDirTil.weaBus, weaBus); connect(weaBus, HDifTilIso.weaBus); connect(HRoo.y, winRad.HRoo); connect(shaCon.y, winRad.uSha); connect(winRad.QTra_flow, HRoo.u); connect(winRad.HDir, HDirTil.H); connect(HDifTilIso.H, winRad.HDif); connect(HDirTil.inc, winRad.incAng); end WindowRadiation;