Re: [EnergyPlus_Support] Radiant heat exchange

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

I am not sure what might be wrong.  Check the azimuth and tilt of the heated 
surface and the window.  If they are facing the same direction, they don't 
"see" each  other, and they will only have a slight long wave thermal exchange 
via other surfaces.  

There is no difference in the internal heat balance between the design day 
calculation and a weather file run period.  

Mike


On 6 May 2005, at 16:19, Edward G. Lyon wrote:

> I am trying to study how radiant panel heat alters the surface temperature of an
> adjacent glass wall using a design day calculation.  EnergyPlus calculations
> include radiant energy exchange.  However, my hot panel does not appear to do
> anything to my glass wall (subdivided into small sections for temperature
> distribution analysis) unless I make it so big that it heats up the room air
> above the themperature set point.  Am I wrong about the program's ability to
> perform a calculation like this?  I previously had good results for a solar
> heated surface temperature model, but I wasn't using the design day simulation
> for that study.
> 
> Ned Lyon, Senior Project Manager
> 
> Simpson Gumpertz & Heger Inc.
> 41 Seyon Street, Bldg 1 Suite 500
> Waltham, Massachusetts  02453
> 
> 781-907-9350 direct
> 
> 
> 
> 
> 
> [Non-text portions of this message have been removed]
> 
> 
> 
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========================================================
Michael J. Witte, GARD Analytics, Inc.
EnergyPlus Testing and Support      
EnergyPlus-Support@xxxxxxxx




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