Re: [EnergyPlus_Support] Question about solar gains.

["Michael J. Witte" <mjwitte@xxxxxxxx>]

EnergyPlus does know the area of the surface, but the goal of these report 
variables was to report the solar intensity which is easier to compare between 
surfaces when it have been normalized by the area.  If incident solar for each 
surface in W would be usefeul, I can add it to the suggestion list.
Most report variables are defined in the Input Output Reference, just search 
for the variable name.  There are four related report variables for incident 
solar:

  Surface Ext Solar Incident
  Surface Ext Solar Beam Incident
  Surface Ext Solar Sky Diffuse Incident
  Surface Ext Solar Ground Diffuse Incident

The first one is the sum of the last three.

Mike


On 29 May 2007 at 12:07, David Barrera wrote:

> Dear all:
> I have a question about Solar Exterior Surface
> Incident output variable. Units in which E+ reports
> this are [W/m2]; if dimensions for each surface are
> known since the fact that the 4 points in the space
> must be defined, why does it report in this way and it
> doesn?t do it directly in [W]? Then, total solar
> radiation per area unit incident on a surface is the
> sum of Surface Ext Solar Incident + Surface Ext Solar
> Sky Diffuse Incident? I just want to be sure that I?m
> not misunderstanding these output variables? 
> Thank a lot. 
> 
> 
> 
> 
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========================================================
Michael J. Witte, GARD Analytics, Inc.
EnergyPlus Testing and Support      
EnergyPlus-Support@xxxxxxxx





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