functionwinTRInteriorIrradiationExteriorShading

Hemispherical transmittance and back reflectance of a window system (glass and shading device) for interior irradiation with exterior shading

Extends from Buildings.HeatTransfer.Windows.Functions.BaseClasses.partialWindowShadingRadiation (Partial function for window radiation property with shading device).

Information

This function computes hemispherical transmittance and back reflectance of a window for interior irradiation with exterior shading. Pane 1 is facing the outside and pane N is facing the room. The variables are
traRefIntIrrExtSha[1]: Transmittance;
traRefIntIrrExtSha[2]: Back reflectance;
traRefIntIrrExtSha[3]: Dummy value

Inputs

TypeNameDefaultDescription
Real[3,N,N,HEM,NSta]traRef (from partialWindowShadingRadiation)Transmittance and reflectance with exterior irradiation and no shading
Real[2,2]traRefShaDev (from partialWindowShadingRadiation)Transmittance and reflectance of shading device
IntegerN (from partialGlassRadiation)Number of glass layers
IntegerNSta (from partialGlassRadiation)Number of window states for electrochromic windows (set to 1 for regular windows)
IntegerHEM (from partialSingleGlassRadiation)Index of hemispherical integration

Outputs

TypeNameDefaultDescription
Real[3,NSta]traRefIntIrrExtShaHemispherical transmittance and back reflectance of a window system (glass and shading device) for interior irradiation with exterior shading

Revisions

  • August 7, 2015, by Michael Wetter:
    Revised model to allow modeling of electrochromic windows. This is for issue 445.
  • August 29, 2010, by Wangda Zuo:
    First implementation.