[TRNSYS-users] Transmittamce-absorptance

David BRADLEY d.bradley at tess-inc.com
Mon May 21 08:25:22 PDT 2018


Jibi,

  It would help to know which Type you are asking about. Transmittance 
absorptance products are typically obtained by multiplying the 
transmittance and the absorptance of a transparent material together. 
Depending on which component you are talking about you may being asked 
for the transmittance-absorptance product at a normal incidence angle or 
you may be being asked to give some kind of hemispherical average.

kind regards,

  David



On 05/20/2018 20:06, Jibi Jais (지비 제이즈) via TRNSYS-users wrote:
> ​Hi
>
> I was trying to validate my TRNSYS results using the mathematical 
> description provided.
> I would like to know how the transmittance-absorptance product was 
> calculated.
> I did simulation for a flat-plate collector and a PVT system.
> It seems the value of transmittance and absorptance is not provided 
> anywhere.
>
> Thanks in advance
>
> Jibi
>
>
>
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> TRNSYS-users at lists.onebuilding.org
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-- 
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
Madison, WI  53703 USA

P:+1.608.274.2577
F:+1.608.278.1475
d.bradley at tess-inc.com

http://www.tess-inc.com
http://www.trnsys.com

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