modelOverhang

Roof overhangs

Extends from IDEAS.Buildings.Components.Shading.Interfaces.PartialShadingDevice.

Information

Shading model of an overhang above a window where hWin is the window height, wWin is the window width, gap is the vertical distance between the window upper edge and the overhang, dep is the horizontal distance between the window glazing and the overhang and wLeft and wRight are respectively the horizontal overhang widths.

illustration

Parameters

TypeNameDefaultDescription
RealfraSunDifSky1 - vieAngOverhang/(0.5*Modelica.Constants.pi)Fraction of window area exposed to diffuse sun light
Window properties
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.LengthdepOverhang depth perpendicular to the wall plane
Modelica.Units.SI.LengthgapDistance between window upper edge and overhang lower edge

Components

TypeNameDefaultDescription
RealfraSunDirFraction of window area exposed to direct sun light

Revisions

  • July 18, 2022 by Filip Jorissen:
    Refactored for #1270 for including thermal effect of screens.
  • May 26, 2017 by Filip Jorissen:
    Added computation of diffuse solar shading. See #735.
  • July 18, 2016 by Filip Jorissen:
    Cleaned up implementation and documentation.