[TRNSYS-users] Boundary wall and Qcomo

[David BRADLEY]

Jingyu,
   Setting the back side convection coefficient to a small but non-zero 
number indicates direct contact with a known (or calculated) 
temperature. It does not mean that there is no energy transferred 
through the surface. If you want to create an adiabatic surface within 
the wall you can set the convective coefficient to zero. QCOMO is the 
energy transferred through the outside surface of the wall. So long as 
the wall temperature and the boundary temperature are different, there 
will still be some energy transferred.
Kind regards,
  David

On 3/22/2013 22:27, 璟瑜 黄 wrote:
> Dear user:
> I have created a boundary wall whose temperature is provided by 
> myself. And I have set the coefficient of convective heat transfer of 
> back side to 1e-006 and solar absorptance of back side to 0. I suppose 
> the Qcomo will be 0 but it is thousands. Why? Qcomo is consisted by 
> convective and radiation, isn't it?
> Jingyu Huang
>
>
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> TRNSYS-users at cae.wisc.edu
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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

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