Re: [EnergyPlus_Support] Absorbed Radiation

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

This equation is stating that all long-wave radiation from internal sources is 
absorbed at the inside face of the innermost pane of glass.  If I understand 
this correctly, the subscripts refer to the two faces (inside and outside) of 
each pane, counting from the outside face of the outermost pane.

So, for a single-pane window (n=1), the outside of the glass is S1, and the 
inside of the glass is S2.  So, this equation does apply to single-pane glass.

Mike


On 8 Jul 2005, at 15:30, Fábyo Luiz Pereira wrote:

>    Dear all,
> 
>    On EngineeringDoc.pdf, page 171, Absorbed Radiation, there are two
> equations. I can't understand the second equation, that is:
> 
>                          S_2n = S_2n + emissivity_2n*intensity
> 
>    I can't understand the equality "S_2n = S_2n". Is there any error in this
> equation? For a single glass layer can I forget it?
> 
>    Thanks!
> 
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========================================================
Michael J. Witte, GARD Analytics, Inc.
EnergyPlus Testing and Support      
EnergyPlus-Support@xxxxxxxx




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