[TRNSYS-users] Simulating an open pond

David BRADLEY d.bradley at tess-inc.com
Tue Jan 24 10:55:14 PST 2012


Prof Flarend,
There is a swimming pool model available from Transsolar. While it takes 
into account the heat and mass transfer from the surface and would be 
able to act as the energy sink from a heat pump, it doesn't allow for 
the freeze/thaw of the surface and it assumes that the water is fully 
mixed. I would think that in your application, you would need to account 
for the thermocline so that the top can freeze while allowing the bottom 
to stay liquid. The pool model might be a good place to start if you 
need to deal with a freeze/thaw cycle. If the pond is going to have a 
layer of ice on it throughout your simulation I would guess that it 
would be just as easy to write a model from scratch.
Best,
David


On 1/19/2012 11:07, Richard Flarend wrote:
> Is there a type which could be used to simulate an open pond (of relatively uniform depth of 1-1.5 meters) as a heat sink for a ground-source heat pump?  It would need to take into account the freezing of the surface and the changing albedo that comes with that.  Our school has a man-made pond that some students want to investigate as a heat sink while at the same time also providing a skating rink.
>
> Thanks,
> Richard Flarend
> Penn State Altoona
>
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