Re: [TRNSYS-users] Emissivity of wall material (TYPE56)

[Erik Olsen <olsen@transsolar.com>]

Hi Yoshi

TRNSYS 16 doesn't allow you to directly change the long-wave emissivity.  TRNSYS 17 will include this feature - TRNSYS 17 is planned for released in late September.

As an approximation in the meantime you could consider applying a wall gain to add the additional heat that has been lost back in to the surface.

Regards
Erik Olsen

----- Original Message -----
From: Yoshinaga Mika <yoshi@ccmfs.meijo-u.ac.jp>
Sent: Wed, 5/27/2009 4:24am
To: trnsys-users@cae.wisc.edu
Subject: [TRNSYS-users] Emissivity of wall material (TYPE56)

Dear David and all,

I'm going to calculate the effect of the low emissivity material using 
TYPE 56, Multi zone building. In TrnBuild, "Wall Type Manager" accepts 
"Solar Absorptance" only and there seems not to be characteristic inputs 
relating to long wave radiation How could I simulate the low emisivity 
material as inside surface ?

Mika YOSHINAGA
Meijo Univ., Japan
yoshi@ccmfs.meijo-u.ac.jp