Re: [EnergyPlus_Support] window heat gains

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

The components of Window Heat Gain and Window Heat Loss are the same.  The net 
heat flow of the window is computed, then positive values are reported as Gain 
and negative values are reported as Loss.

Mike


On 15 Mar 2006 at 10:46, Clarice Bleil de Souza wrote:

> Hi everybody,
>    
>   I want to check sth very important about the window heat gains.
>   I want to put gains and losses together and therefore I'm doing that:
>   [(losses)*(-1)] + gains = window heat transfer
>    
>   Then I want to separate the solar portion from this so that I can plot some
> sort of window breakdown graph. To do so I assume I subtract the solar portion
> from this calculated value. Is that correct? Or by doing so I will be
> subtracting the solar portion twice?
>   I ask that because when I looked at the documentation I saw that the window
> heat gains are composed by several components including transmitted solar
> energy but when I checked the heat losses it says "absolute value of heat flow
> when the total heat flow is negative (see the definition of heat gains above)"
> Does that implicitly mean that the transmitted solar portion is zero or
> different in this case and the balance is negative? I ask that because I'm
> afraid I might be subtracting the solar portion twice. Can anybody give me a
> hand on that?
>    
>   Thanks in advance for the help
>    
>   Best regards,
>    
>   Clarice
>    
> 
> 		
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========================================================
Michael J. Witte, GARD Analytics, Inc.
EnergyPlus Testing and Support      
EnergyPlus-Support@xxxxxxxx





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