I think your equation may be over simplified. PV glazing can be described in the same way as other glazing, and will have it't own spectral matrix describing which wave lengths are transmitted, absorbed and reflected and to which degrees. The glazing forms part of a window assembly with frame and inherrant thermal breaks. The total assembly has a so called SHGC which is a rating value to relatively show how much solar heat is gained relative to another window assembly. e+ can calculate some of the individual rating values, but the total for the assembly not. For that I would suggest using WINDOW 7.2 or higher with THERM.
Mit freundlichen Grü�en- Sent from my iPhone (excuse the brevity)
i. A.
Jean Marais
b.i.g. bechtold
Tel. +49 30 6706662-23
On 14.03.2015, at 07:17, "harold_003@xxxxxxxxxxxx [EnergyPlus_Support]" <EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:
Dear All,
PV glazing can absorb part of the solar energy and convert to electricity. The solar heat gain of the indoor can be reduced by the PV glazing.
In energyplus, what should be the correct method in the input so that I can demonstrate the heat balance of the solar heat gain though the window?
e.g. Total solar heat gain = Electricity generated by PV + Solar heat entering the room
Thanks
Harold
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