Re: [TRNSYS-users] Simulation of solar cooling system with solar collectors mounted on external wall

[a8304506@graduate.hku.hk]

Hello, David.

Thank you for your reply, but I find two problems.  The first one is that for a
BOUNDARY wall, no window can be added.  The second one is that I can't find any
suitable proformas for the solar collectors which have the input and output
variables as mentioned.  Do you have other suggestions?

Best Regards
LEE, Chun Kwong
Research assistant
Division of Building Science and Technology
City University of Hong Kong


Quoting David Bradley <bradley@tess-inc.com>:

> Chun Kwong,
> If you have solar collectors that are truly integrated with the facade
> of your building then you will need to define the building wall on which
> the collectors are mounted as a BOUNDARY wall with a user defined
> outside surface temperature and you will need to define a Type56 output
> for either the inside surface temperature or for the energy transfered
> out through the outside surface of that wall (QCOMO); which output you
> need depends on your collector model. You then need a collector model
> that takes either the energy conducted through its back side or the
> inside surface temp of the wall and which calculates the temperature of
> the interface between the wall and the collector. I believe that there
> are some models like that in the TESS Green Building Library.
> Kind regards,
> david
> 
> 
> a8304506@graduate.hku.hk wrote:
> > Hello, Trnsys users.
> >
> > I want to simulate a solar cooling system with the solar collectors mounted
> on
> > the external wall of a building.  I suppose that I add an active layer on
> the
> > external of the wall with an input equivalent heat transfer coefficient for
> the
> > solar collectors.  However, I don't konw how I can output that value from
> the
> > solar collector models (say Type71, Type73).  Can anyone advise how I can
> make
> > it?  Thank you!
> >
> > Best Regards
> > LEE, Chun Kwong
> > Research assistant
> > Division of Building Science and Technology
> > City University of Hong Kong
> >
> >
> >
> >
> >   
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> 
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