[TRNSYS-users] Research "earth cooling tube" type

[David BRADLEY]

Yohann,
Transsolar has a non-standard TRNSYS Type for simulating the performance 
of earth-duct systems. It is not freely available but you can learn 
about the component from the documentation, which is posted at:

http://www.transsolar.com/__software/docs/komponenten/komponenten_ts_en.htm

The component (Type460) asks you to provide the coefficients for the 
heat exchange between the earth duct walls and the air in the tube. Jean 
MARAIS's comment about the dew point is a good one; make sure that you 
do not overestimate the heat transfer at the tube wall or it will look 
as though your earth duct performs a lot better than it would in reality.
Kind regards,
David


On 5/20/2014 03:26, Yohann Dulong wrote:
> Hello,
>
> I'm a french graduate student, currently doing an internship for the validation of my master degree. I have to create a model using the program TRNSYS and I would like to know if someone has a Type for an "earth cooling tube" (ground coupled heat exchanger). If so, please let me know if you could possibly send it to me.
> Thank you in advance,
>
> Yohann Dulong.
>
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David BRADLEY
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Thermal Energy Systems Specialists, LLC
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