modelBox

Both side fins and overhang
Diagram of BoxOpen the diagram
▶ Check in your browser

Extends from IDEAS.Buildings.Components.Shading.Interfaces.PartialShading (Window shading partial).

Information

Shading model that simulates a combination of both side fins and a overhang. The implementation is a combination of both IDEAS.Buildings.Components.Shading.Overhang and IDEAS.Buildings.Components.Shading.SideFins.

Parameters

TypeNameDefaultDescription
Booleancontrolled (from PartialShading)trueif true, shading has a control input
Modelica.Units.SI.AreaA_glazing (from PartialShading)Surface area of the glazing
Modelica.Units.SI.AreaA_frame (from PartialShading)Surface area of the frame
Modelica.Units.SI.Angleinc (from PartialShading)Surface inclination
Modelica.Units.SI.TemperatureTenv_nom (from PartialShading)280Nominal temperature of environment
Modelica.Units.SI.EmissivityepsSw_frame (from PartialShading)Short wave solar absorption coefficient of the frame
Modelica.Units.SI.EmissivityepsLw_frame (from PartialShading)Long wave solar absorption coefficient of the frame
Modelica.Units.SI.EmissivityepsLw_glazing (from PartialShading)Long wave solar absorption coefficient of the glazing
Modelica.Units.SI.EmissivityepsSw_shading (from PartialShading)0.8Short wave emissivity of the shading object
Realg_glazing (from PartialShading)Nominal shading coefficient of the glazing
BooleanlinCon (from PartialShading)falseLinearise convective heat transfer
BooleanlinRad (from PartialShading)falseLinearise radiative heat transfer
BooleanhaveBoundaryPorts (from PartialShading)trueInclude ports for setting boundary conditions
BooleanhaveFrame (from PartialShading)A_frame*epsLw_frame > 0Frame enabled
Modelica.Units.SI.CoefficientOfHeatTransferhSha (from PartialShading)12Equivalent thermal conductance of the shading device
Window properties
Modelica.Units.SI.Angleazi (from PartialShading)Window azimuth angle
Modelica.Units.SI.LengthhWinWindow height
Modelica.Units.SI.LengthwWinWindow width
Overhang properties
Modelica.Units.SI.LengthwLeftLeft overhang width measured from the window corner
Modelica.Units.SI.LengthwRightRight overhang width measured from the window corner
Modelica.Units.SI.LengthovDepOverhang depth perpendicular to the wall plane
Modelica.Units.SI.LengthovGapDistance between window upper edge and overhang lower edge
Side fin properties
Modelica.Units.SI.LengthhFinHeight of side fin above window
Modelica.Units.SI.LengthfinDepSide fin depth perpendicular to the wall plane
Modelica.Units.SI.LengthfinGapVertical distance between side fin and window

Connectors

TypeNameDefaultDescription
Modelica.Blocks.Interfaces.RealInputHDirTil (from PartialShading)Direct solar illuminance on surface
Modelica.Blocks.Interfaces.RealInputHSkyDifTil (from PartialShading)Diffuse sky solar illuminance on tilted surface
Modelica.Blocks.Interfaces.RealInputHGroDifTil (from PartialShading)Diffuse ground solar illuminance on tilted surface
Modelica.Blocks.Interfaces.RealInputangZen (from PartialShading)Angle of incidence
Modelica.Blocks.Interfaces.RealOutputHShaDirTil (from PartialShading)Shaded direct solar illuminance on surface
Modelica.Blocks.Interfaces.RealOutputHShaSkyDifTil (from PartialShading)Shaded diffuse sky solar illuminance on tilted surface
Modelica.Blocks.Interfaces.RealOutputHShaGroDifTil (from PartialShading)Shaded diffuse ground solar illuminance on tilted surface
Modelica.Blocks.Interfaces.RealOutputiAngInc (from PartialShading)Angle of incidence after transmittance through (possible) shading
Modelica.Blocks.Interfaces.RealInputangInc (from PartialShading)Inclination angle
Modelica.Blocks.Interfaces.RealInputangAzi (from PartialShading)Azimuth angle
Modelica.Blocks.Interfaces.RealInputCtrl (from PartialShading)Control signal between 0 and 1, i.e. 1 is fully closed
Modelica.Thermal.HeatTransfer.Interfaces.HeatPort_bport_frame (from PartialShading)
Modelica.Thermal.HeatTransfer.Interfaces.HeatPort_aport_glazing (from PartialShading)
Modelica.Blocks.Interfaces.RealInputTEnv (from PartialShading)Environment temperature
Modelica.Blocks.Interfaces.RealInputTe (from PartialShading)
Modelica.Blocks.Interfaces.RealInputhForcedConExt (from PartialShading)
Modelica.Blocks.Interfaces.RealOutputTDryBul (from PartialShading)Exterior surface air temperature
Modelica.Blocks.Interfaces.RealInputm_flow (from PartialShading)

Components

TypeNameDefaultDescription
Modelica.Units.SI.IrradianceHSha (from PartialShading)HShaDirTil + HShaSkyDifTil + HShaGroDifTilTotal shaded solar irradiance
Modelica.Units.SI.IrradianceH (from PartialShading)HDirTil + HSkyDifTil + HGroDifTilTotal unshaded solar irradiance
RealfraSunDirFraction of window area exposed to the sun
RealfraSunDifSkyFraction of window area exposed to diffuse sun light
IDEAS.Buildings.Components.Shading.Overhangoverhang
IDEAS.Buildings.Components.Shading.SideFinssideFins

Revisions

  • February 24, 2025 by Filip Jorissen:
    Added missing m_flow connections. See #1424.
  • December 15, 2022 by Filip Jorissen:
    Bugfix for #1308.
  • July 18, 2022 by Filip Jorissen:
    Refactored for #1270 for including thermal effect of screens.
  • May 26, 2017 by Filip Jorissen:
    Revised implementation for renamed ports HDirTil etc. See #735.
  • July 18, 2016 by Filip Jorissen:
    Cleaned up implementation and documentation.