Re: [TRNSYS-users] outlet temperature, water to water heat pump

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

Mavi,
 Heat pumps can't really do that - they are either on and operating at whatever capacity they have available given the entering water conditions or they are off. Unless they are multistage heat pumps, they can't load follow and provide a constant outlet temperature regardless of the inlet temperature. In reality and in simulation, you would have to look for a method of actually doing that. One thing you could try is to have a bypass valve upstream of the heat pump, oversize the heat pump so that it can always heat or cool the liquid enough and then divert some of the upstream liquid around the heat pump and mix it back in downstream like a tempering valve.
Best,
 David


Mavi Cambronero Vázquez wrote:

Hi everybody!!

 

I´d like to get a fixed outlet temperature from a water-water heat pump. Do you know how to do it???

 

Thank you!!!

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