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Re: [EnergyPlus_Support] Multiplier (GetHT Subsurface Data Warning Message))



Another limitation in using a multiplier for window sub-surfaces is the 
impact on daylighting calculations.  Since EnergyPlus does not know 
where each of the individual windows is located, it cannot properly 
calculate the visible light transmitted through these windows into a space.

Rob Hitchcock
=========
teomj23 wrote:

> Dear all,
>
> do you know what are the effects of the use of multiplier in Sub
> Surfaces?
> I would be sure that using the multiplier function of E+, I don't lose
> or compromise important data or features about both the effects of
> solar radiation on windows (heat gain or loss, direct beam solar
> transmittance and reflectance, internal surface temperatures, ecc...)
> and the Building energetic consumptions, due to an incorrect behaviour
> of glazing surfaces in respect to sun path.
>
> Infact in the exported E+ drawing file I have only 1 window of the
> group, while in the editor I have the correct multiplier.
>
> kindly
>
> Matteo
>
> 
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