functionglassTRExteriorIrradiationNoShading

Transmittance and reflectance of glass panes for exterior irradiation without shading

Extends from Buildings.HeatTransfer.Windows.Functions.BaseClasses.partialGlassRadiation (Partial function for glass radiation property).

Information

This function computes the angular variation of the transmittance and reflectance of each glass pane for exteior irradiation without shading. It accounts for the transmittance and reflectance among different panes. Pane 1 is facing outside and pane N is facing the room.

Inputs

TypeNameDefaultDescription
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
Real[3,N,HEM,NSta]layerAngular data of glass pane

Outputs

TypeNameDefaultDescription
Real[3,N,N,HEM,NSta]traReffill(0, 3, N, N, HEM, NSta)Transmittance and reflectance of each glass pane for exterior irradiation without shading

Revisions

  • September 23, 2022, by Jianjun Hu:
    Added default value to the output variable. This is for issue 3111.
  • 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.