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Re: [EnergyPlus_Support] Warning explanation needed





I think this warning made by modeling of skylight.

because of skylight, your roof has a hole.

If you want remove this warning, you must cut roof as rectangles

Same like 


 ____________________
l    l   roof              l      l
l    l_____________l      l
l r  l                      l   r   l
l o  l   Skylight       l  o   l
l o  l____________ l  o   l
l f   l      roof           l  f   l
l___l_____________l___l



2013/9/3 Linda Lawrie <linda@xxxxxxxxxxxxxx>
 

Well, it is a warning, not a severe.

Your roof is a receiving surface but it is non-convex.  If you have shading surfaces shading it, it is warning you that the shadowing values could be inaccurate (but may not be)



At 01:42 AM 9/3/2013, jeannieboef@xxxxxxxxx wrote:


   ** Warning ** DetermineShadowingCombinations: Surface="118434_ROOF_0_0_0" is a receiving surface and is non-convex.
   **   ~~~   ** ...Shadowing values may be inaccurate.

The surface is plannar. The zone is non-convex. Surely this only has an effect if a skylight (roof window) had to have light fall downwards, it would also fall "around the corner" and in that way be inaccurate. But this model uses FullExterior, i.e. this warning is moot, right?




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