[TRNSYS-users] Overhang and wingwall shading

[Edward Halawa]

Dear Arie,

Based on your information, I now feel safe to "ignore" the walls and
focus on the windows. The house is well insulated.

Thanks and regards,


ehalawa

-----Original Message-----
From: Arie Kalkman [mailto:a.kalkman at chri.nl] 
Sent: Monday, 21 August 2006 8:37 PM
To: Edward Halawa; TRNSYS-users at engr.wisc.edu
Subject: RE: [TRNSYS-users] Overhang and wingwall shading

Dear Edward,

Concerning your first question, I think Type 34 calculates the shading
of a
'receiver'. This can be either a wall or a window, or something else,
depending on your model. Usually, with e.g. 50% window in a well
insulated
wall, the window-related effect will be the largest by far.   
It is possible that the shading of the wall becomes important, e.g. when
the
wall has a low thermal resistance. It may be necessary to separate both
contributions, by labeling the wall and the window e.g. South1 and
South2,
and calculating the shading of both areas by two different Type34's.

Regards, Arie.