Re: RE: [EnergyPlus_Support] about surface thermal absortance and emissivity.

[prln <prln@xxxxxxxxxx>]

Hello, Xiangjing...

 

Please, could you send me your IDF file for this case, too?

 

Best regards,

 

Paulo Roberto

prln@xxxxxxxxxx

 

Em 06/07/2009 08:43, YuanLu 元六 Li < yli006@xxxxxxxxxxx > escreveu:

Hi, xiangjing,

Please post or send me your IDF.  I would like to know how you model the box and what surface condition or variable you were looking at.

Dr. Li

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To: EnergyPlus_Support@xxxxxxxxxxxxxxx
From: geshen516@xxxxxxxxx
Date: Mon, 6 Jul 2009 10:03:02 +0000
Subject: [EnergyPlus_Support] about surface thermal absortance and emissivity.

I am trying to find the effect of surface emissivity of long wave radiation on cooling load and surface temperature.

So I built a simple box, and set the solar absorptance 0.9
I test the cases: thermal emissivity 0.1 and 0.9, (for exterior surface only)

the result is very strange: no difference... both for cooling load and surface temprerature..

what kind of data can i check?

I have run those for V2-2 and V3-0, same results...

Thanks and regards
xiangjing

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