[Bldg-sim] Daylight factors in EnergyPlus: Does DELight account for external shading?
rjhitchcock at gmail.com
Mon Oct 11 12:32:10 PDT 2010
In response to the question from Ralph Evins regarding DELight accounting
for external shading:
No DElight does not account for external shading. I was surprised by this
myself, but checked the code to make sure. Although DElight is capable of
accounting for shading surfaces, none of the EnergyPlus Shading Surface
types are currently transferred to DElight for its calculations.
---------- Forwarded message ----------
From: "Ralph Evins" <Ralph.Evins at BuroHappold.com>
To: <bldg-sim at lists.onebuilding.org>
Date: Mon, 11 Oct 2010 16:53:04 +0100
Subject: [Bldg-sim] Daylight factors in EnergyPlus: Does DELight account for
How can daylight factors be calculated for a grid of points in an EnergyPlus
zone with external shading?
DELight allows up to 100 reference points to be defined, however this does
not appear to take into account any shading (Shading:Building,
Shading:Overhang, Shading:Zone etc).
The DELight input file _DELight.in contains a reference to BUILDING SHADES,
however I can’t find an EnergyPlus configuration that gives anything other
than "N_BShades 0".
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