LBL logo

Buildings.HeatTransfer.Windows.BaseClasses.Examples

Collection of models that illustrate model use and test models

Information

This package contains examples for the use of models that can be found in Buildings.HeatTransfer.Windows.BaseClasses.

Extends from Modelica.Icons.ExamplesPackage (Icon for packages containing runnable examples).

Package Content

NameDescription
Buildings.HeatTransfer.Windows.BaseClasses.Examples.AbsorbedRadiation AbsorbedRadiation Test model for absorbed radiation by windows
Buildings.HeatTransfer.Windows.BaseClasses.Examples.CenterOfGlass CenterOfGlass Test model for center of glas heat transfer
Buildings.HeatTransfer.Windows.BaseClasses.Examples.GlassLayer GlassLayer Test model for glass layer heat transfer
Buildings.HeatTransfer.Windows.BaseClasses.Examples.GasConvection GasConvection Test problem for convection in the gas layer
Buildings.HeatTransfer.Windows.BaseClasses.Examples.Shade Shade Test model for exterior shade heat transfer
Buildings.HeatTransfer.Windows.BaseClasses.Examples.SideFins SideFins Test model for side fins
Buildings.HeatTransfer.Windows.BaseClasses.Examples.TransmittedRadiation TransmittedRadiation Test model for transmitted radiation through window
Buildings.HeatTransfer.Windows.BaseClasses.Examples.Overhang Overhang Test model for the overhang
Buildings.HeatTransfer.Windows.BaseClasses.Examples.WindowRadiation WindowRadiation Test model for window radiation

Buildings.HeatTransfer.Windows.BaseClasses.Examples.AbsorbedRadiation Buildings.HeatTransfer.Windows.BaseClasses.Examples.AbsorbedRadiation

Test model for absorbed radiation by windows

Buildings.HeatTransfer.Windows.BaseClasses.Examples.AbsorbedRadiation

Information

This example illustrates modeling of window radiation.

Extends from Modelica.Icons.Example (Icon for runnable examples).

Parameters

TypeNameDefaultDescription
Anglelat0.34906585039887Latitude [rad]
Angleazi0Surface azimuth [rad]
Angletil1.5707963267949Surface tilt [rad]
DoubleClearAir13ClearglaSys Parameters for glazing system

Connectors

TypeNameDescription
BusweaBus 

Modelica definition

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";

  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");

  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=glaSys.nLay,
    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);
  parameter Buildings.HeatTransfer.Data.GlazingSystems.DoubleClearAir13Clear glaSys(
    shade=Buildings.HeatTransfer.Data.Shades.Gray(),
    UFra=2,
    haveExteriorShade=false,
    haveInteriorShade=true) "Parameters for glazing system";
  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.CenterOfGlass Buildings.HeatTransfer.Windows.BaseClasses.Examples.CenterOfGlass

Test model for center of glas heat transfer

Buildings.HeatTransfer.Windows.BaseClasses.Examples.CenterOfGlass

Information

This model tests the heat transfer for the center of the glass, with and without a shading device.

Extends from Modelica.Icons.Example (Icon for runnable examples).

Parameters

TypeNameDefaultDescription
AreaA1Window surface area [m2]
BooleanlinearizefalseSet to true to linearize emissive power
DoubleClearAir13ClearglaSys Parameters for glazing system

Modelica definition

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[glaSys.nLay](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.GlassLayer Buildings.HeatTransfer.Windows.BaseClasses.Examples.GlassLayer

Test model for glass layer heat transfer

Buildings.HeatTransfer.Windows.BaseClasses.Examples.GlassLayer

Information

This model tests one glas layer.

Extends from Modelica.Icons.Example (Icon for runnable examples).

Parameters

TypeNameDefaultDescription
AreaA1Window surface area [m2]
BooleanlinearizefalseSet to true to linearize emissive power

Modelica definition

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.GasConvection Buildings.HeatTransfer.Windows.BaseClasses.Examples.GasConvection

Test problem for convection in the gas layer

Buildings.HeatTransfer.Windows.BaseClasses.Examples.GasConvection

Information

Extends from Modelica.Icons.Example (Icon for runnable examples).

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.HeatTransfer.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.HeatTransfer.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.HeatTransfer.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.Shade Buildings.HeatTransfer.Windows.BaseClasses.Examples.Shade

Test model for exterior shade heat transfer

Buildings.HeatTransfer.Windows.BaseClasses.Examples.Shade

Information

This model tests the shading device. Note that the temperature of the shading device changes slightly as the shade control signal changes (i.e., as the shade is lowered). This is because the shade has a different emissive power than the glass, which changes the energy balance.

Extends from Modelica.Icons.Example (Icon for runnable examples).

Parameters

TypeNameDefaultDescription
AreaA1Window surface area [m2]
BooleanlinearizetrueSet to true to linearize emissive power

Modelica definition

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 Buildings.HeatTransfer.Windows.BaseClasses.Examples.SideFins

Test model for side fins

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.

Solar angles used in this model are:

image

Extends from Modelica.Icons.Example (Icon for runnable examples).

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 Buildings.HeatTransfer.Windows.BaseClasses.Examples.TransmittedRadiation

Test model for transmitted radiation through window

Buildings.HeatTransfer.Windows.BaseClasses.Examples.TransmittedRadiation

Information

This example illustrates modeling of window transmittance.

Extends from Modelica.Icons.Example (Icon for runnable examples).

Parameters

TypeNameDefaultDescription
Anglelat0.34906585039887Latitude [rad]
Angleazi0Surface azimuth [rad]
Angletil1.5707963267949Surface tilt [rad]
DoubleClearAir13ClearglaSys Parameters for glazing system

Connectors

TypeNameDescription
BusweaBus 

Modelica definition

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";

  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");

  BoundaryConditions.SolarIrradiation.DiffuseIsotropic HDifTilIso(
               til=til);
  Modelica.Blocks.Sources.Constant shaCon(k=if (glaSys.haveShade) then 0.5 else 
              0);
  Buildings.HeatTransfer.Windows.BaseClasses.TransmittedRadiation winTra(
    AWin=1,
    N=glaSys.nLay,
    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);
  parameter Buildings.HeatTransfer.Data.GlazingSystems.DoubleClearAir13Clear glaSys(
    shade=Buildings.HeatTransfer.Data.Shades.Gray(),
    UFra=2,
    haveExteriorShade=false,
    haveInteriorShade=true) "Parameters for glazing system";
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.Overhang Buildings.HeatTransfer.Windows.BaseClasses.Examples.Overhang

Test model for the overhang

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.

Solar angles used in this model are:

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.

Extends from Modelica.Icons.Example (Icon for runnable examples).

Connectors

TypeNameDescription
BusweaBus 

Modelica definition

model Overhang "Test model for the overhang"
  extends Modelica.Icons.Example;
  Buildings.BoundaryConditions.SolarGeometry.IncidenceAngle incAng(
    lat=weaDat.lat,
    azi=Buildings.HeatTransfer.Types.Azimuth.S,
    til=Buildings.HeatTransfer.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.HeatTransfer.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.sol.alt, walSolAzi.alt);
  connect(weaBus.sol.alt, ove.alt);
end Overhang;

Buildings.HeatTransfer.Windows.BaseClasses.Examples.WindowRadiation Buildings.HeatTransfer.Windows.BaseClasses.Examples.WindowRadiation

Test model for window radiation

Buildings.HeatTransfer.Windows.BaseClasses.Examples.WindowRadiation

Information

This example illustrates modeling of window radiation.

Extends from Modelica.Icons.Example (Icon for runnable examples).

Parameters

TypeNameDefaultDescription
Anglelat0.34906585039887Latitude [rad]
Angleazi0Surface azimuth [rad]
Angletil1.5707963267949Surface tilt [rad]
DoubleClearAir13ClearglaSys Parameters for glazing system

Connectors

TypeNameDescription
BusweaBus 

Modelica definition

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";

  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");

  BoundaryConditions.SolarIrradiation.DiffuseIsotropic HDifTilIso(
               til=til);
  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=glaSys.nLay,
    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);

  parameter Buildings.HeatTransfer.Data.GlazingSystems.DoubleClearAir13Clear glaSys(
    shade=Buildings.HeatTransfer.Data.Shades.Gray(),
    UFra=2,
    haveExteriorShade=false,
    haveInteriorShade=true) "Parameters for glazing system";
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;
Automatically generated Thu Oct 24 15:10:39 2013.