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RE: [EnergyPlus_Support] Cavity convection algo specific to Trombe wall?

 
Hi Laurent,
 
I think the Trombe wall convection algorithm is applicable to just about any vertical cavity with a high aspect ratio and relatively narrow width.  I'm not sure if a double facade cavity would meet the aspect ratio requirement.  But I do know the Trombe wall algorithm is not picky about whether the inner wall is highly absorbant, or about any particular properties of the walls.  Actually the same basic algorithm is used by the window model to calculate the convection between the two panes of a window.  The full reference is ISO 15099.
 
P

________________________________

From: EnergyPlus_Support@xxxxxxxxxxxxxxx on behalf of laurentvidal50
Sent: Mon 6/9/2008 2:57 AM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: [EnergyPlus_Support] Cavity convection algo specific to Trombe wall?



Hello,

Reading the documentation, I'm wondering if the Cavity algorithm is
usable for other double facade types or only Trombe wall.

In other words, is Cavity implicitly presume that the inner wall is a
highly solar absorbent and so generate specific convection?

Thank you.
Laurent



 


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