[TRNSYS-users] How to use the type 687 with type56?

[David Bradley]

Yujun,
  I would not recommend using Type687 with Type56. Type687 is a quite 
simplified window model that calculates the net energy transfer 
through the window based only on the three values published by the US 
National Fenestration Research Council (the overall u-value, the 
solar heat gain coefficient, and the visible transmittance) and is 
intended for use with some of the simpler building models. The window 
model built into Type56 is much more comprehensive, accounts for 
incidence angle effects, calculates a window surface temperature that 
enters into the Type56 zone radiation balance, accounts seperately 
for center of glass and frame effects, allows the use of shading devices, etc.
Kind regards,
  David


At 04:37 2/28/2008, Yujun TAO wrote:
>Hi everyone,
>Dose someone know how to use the type687 with the type56?
>Thanks in advance
>Yujun
>
>
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Thermal Energy System Specialists (TESS), LLC
David BRADLEY                           2916 Marketplace Drive - Suite 104
Partner                                        Madison, WI 53719
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