[TRNSYS-users] external shading factor (multizone building)

[Knut Erik Enerstvedt]

Joke,


I think you should only consider the g-value of the shading device when
calculating external shading factor. The g-value

of the window is handled separately. So if the g-value of your shading
device is 0.23, the external shading

factor becomes 1 - 0.23 = 0.77.


Someone please correct me if I am wrong.


Kind regards,

Knut Erik Enerstvedt



>Dear trnsys-users,



>I’ve a question about how to calculate the external shading factor
(multizone building). Is the following correct?



>Suppose I’ve a window with a g-value of 0,37 and a g-value of 0,23
(external shading device + window).

>The external shading factor becomes then: 1 – (gwindow+shadingdevice/
gwindow) = 1- (0.23/0.37) = 0.38





>Kind regards,



>Joke De Beuckelaer

>project engineer mep
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.onebuilding.org/pipermail/trnsys-users-onebuilding.org/attachments/20101104/ffdbe7c5/attachment-0005.htm>