Re: [EnergyPlus_Support] interior blinds

[Rob Hitchcock <RJHitchcock@xxxxxxx>]

Placing blinds and/or shades on the interior of a window will not stop 
solar gains from entering the zone.  Solar will still be transmitted 
through the window and will warm up the blind/shade surface, which is 
inside the zone.  Some solar will be reflected back out the window, but 
this will not reliably lower the overall solar gains relative to a 
window without an interior blind or shade.

Try placing the blind/shade on the exterior of the window for comparison.

Rob
=======
yiqunpan wrote:

> I made a model to simulate the heat transfer from the evenlope. In the
> model I used interior blinds for windows as well as without blinds. I
> thought that the cooling loads through the envelope due to solar heat
> gain should be higher without blinds than with blinds, but the results
> show that in some time (e.g. early morning on east facade and late
> afternoon on west facade) it is higher with blinds. What is the reason
> exactly? I also tried interior shade, but the results are similar.
>
>  





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