Re: [TRNSYS-users] Air-water heat pump

[David Bradley <bradley@tess-inc.com>]

Mavi,
  I faced this same situation at one point and was able to use Type505 by turning it around backwards. Fundamentally, when Type505 refers to "heating," it is heating the air stream and cooling the water stream. When it is "cooling" it is cooling the air and heating the water stream. In your case, "heating" means heating the water and cooling the air. So if you treat Type505's "cooling" control signal as though it were your "heating" control signal, it should work fine.

 I believe that in upcoming Tess Libraries 17, there is a specific component for what you are trying to do but I am not aware of its status at the moment.
Best,
 david


On 7/7/2010 07:06, Mavi Cambronero Vázquez wrote:

Hi all!

 

I´m looking for a typical air-water heat pump. I have HVAC library from TESS but the type that is called water-source heat pump is not what I need. The scheme is the same but the fluid stream and the air stream air in opposite places, that is, if I want to simulate a conventional heat pump in order to cool the air inside a building what I need to cool is the liquid stream that would be indoor. In that case, the air flow would be outdoor. Type 505 is what Ì´d need but exchanging both streams.

 

I don´t know if I explained well my problem. Does anybody know the correct type to simulate an air-water heat pump, with the water stream indoor?

 

Thanks in advance.

 

Best,

 

Mavi

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