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changing material has no effect to conduction gain?
Posted: Thu Apr 25, 2013 10:51 am
by newuser91
hi there, I am trying to monitor conduction gain through rooflight by changing materials, but the graph produced the same results, can you pleas help me?
Re: changing material has no effect to conduction gain?
Posted: Fri Apr 26, 2013 9:17 am
by PCully
what are you changing? are you sure you are changing the materials of the Construction assigned in the model? are you changing properties that are relevant to the conduction gain (check the calculation methods for additional detail if necessary)? When running the sims for comparison ensure you don't overwrite the previous results so you can compare them side by side in Vista
Phil
Re: changing material has no effect to conduction gain?
Posted: Fri Apr 26, 2013 11:46 am
by ZapBran
Hello newuser91,
You haven't done something quite right here because you would definitely be seeing a difference - even IES wouldn't miss something like that!
I've shown a simple example here where I have two rooms and I change the material of the partition between them (1=high uVal, 2-low uVal) and you can clearly see a change as one would expect.
My best guess is, as Phil has pointed to as well, You have changed a material but it is not used in the construction applied.
Zap.
Re: changing material has no effect to conduction gain?
Posted: Fri Apr 26, 2013 11:51 am
by ZapBran
crap - click view image in new tab to see the full width