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



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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