[Equest-users] How does eQuest know initial Footcandles for Daylighting Calc?

[John Aulbach]

LIke the Phantom of the Opera.."A mystery never fully explained.."

I have performed Daylighting savings EEMs in eQuest, where one places a sensor in the space, one deliniates a minimum footcandle requirement, and runs a Parametric run to determine how much lighting energy may be saved.

What is NOT clear to me is how eQuest determines what the inital footcandle level is. It obviously knows the lighting fixture height (Ceilling or syspended) and the geometry of existing windows, etc. But I cannot find where the information lies that says "eQuest assumes so many lumens/watt of certain lighting."

Can anyone "ILLUMINATE" me, please?

Hope all had a great Christmas.

John Aulbach


      
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