[TRNSYS-users] Long wave emissivity of walls

David Bradley bradley at tess-inc.com
Thu Apr 16 09:10:29 PDT 2009


Cristophe and Bastien,
 I believe that the emissivity of walls in Type56 is assumed to always 
be 0.9 and that there is not a convenient way to model low emissivity 
materials in TRNSYS 16.
Kind regards,
 David
 

Bastien GARBAY wrote:
>
> Dear Trnsys-users,
>
> I'm trying to modelize a low emissivity material to evaluate its 
> impact on summer confort of buildings. Can I change the long wave 
> emissivity of the outside surfaces of walls? I read in the User Guide 
> the default value of emissivity is 0.9 for any walls.
>
> Has anyone ever tried to modelize this kind of "reflecting" material?
>
> Thanks a lot for your help,
>
> Best regards,
>
> Bastien Garbay
> Cabinet SIDLER / ENERTECH
> Quartier Bourgounion
> F-26160 FELINES SUR RIMANDOULE
> tel-fax : +33 (0)4 75 90 18 54
> Courriel : garbay at enertech.fr <mailto:garbay at enertech.fr>
> Site : www.enertech.fr <http://www.enertech.fr/>
>
>  
>
>  
> ------------------------------------------------------------------------
>
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> TRNSYS-users at cae.wisc.edu
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>   

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Thermal Energy System Specialists (TESS), LLC 
David BRADLEY                      22 N. Carroll Street - Suite 370 
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                                   USA
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E-mail: bradley at tess-inc.com 
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