The model calculates the solar radiation through the window.
The calculations follow the description in Wetter (2004), Appendix A.4.3.
The transmitted exterior radiation for window system includes:
-
the transmitted diffusive radiation on unshaded part:
AWin*(1-uSha)*HDif*tau(HEM)
-
the transmitted direct radiation on no shade part:
AWin*(1-uSha)*HDir*tau(IncAng)
-
the transmitted diffusive radiation on shaded part:
AWin*uSha*HDif*tauSha(HEM)
-
the transmitted direct radiation on shaded part:
AWin*uSha*HDir*tauSha(IncAng);
The outputs are QTraDif_flow = Part1 + Part3
and
QTraDir_flow = Part2 + Part4
.
References
-
June 7, 2016, by Michael Wetter:
Removed output QTra_flow
and introduced instead
QTraDif_flow
and QTraDir_flow
.
This is for
issue 451.
-
August 7, 2015, by Michael Wetter:
Revised model to allow modeling of electrochromic windows.
This is for
issue 445.
-
March 13, 2015, by Michael Wetter:
Changed initial algorithm
to initial equation
section
to avoid a translation error in OpenModelica.
-
March 4, 2011, by Wangda Zuo:
Remove the if-statement and integer function that can trigger events.
-
February 2, 2010, by Michael Wetter:
Made connector uSha
a conditional connector.
-
December 15, 2010, by Wangda Zuo:
Separate transmittance and absorbance models from the window radiation model.
-
December 12, 2010, by Michael Wetter:
Replaced record
Buildings.HeatTransfer.Data.GlazingSystems with the
parameters used by this model.
This was needed to integrate the radiation model into the room model.
-
December 10, 2010, by Wangda Zuo:
First implementation.
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