[TRNSYS-users] Air source Heat pump to storage

[Michael Diekerhof]

Dear all,

i would really appreciate it, if anyone could have a look on my 
projectfile, since it´s not working. Although you might won´t be able to 
run the simulation i am sure that there´s a mistake (or more) in the 
connections I made.

So my main problem is: How can I get an almost constant condensator 
outlet temperature ???

Since it is an Air-Source Heat Pump, I do need a FAN. I connected Type23 
(PID-Controller) to the FAN with the condensator outlet temperature of 
the heat pump as the Controlled variable. But it doesn´t work yet 
because the evaporator mass flow and temperature is extremely high!

How can I control the Fan? Do i need to control the Fan to achieve the 
goal above and what is the on/off signal for the FAN?

In due to the control signals for the pump and the heat pump I guess 
that both control signals should be dependent on the condensator outlet 
temperature (e.g. around 55°C) and the temperature back to the heat 
source (e.g. 50°C), right??

I am very thankful for any suggestions how to connect the types 
correctly. I have no other ideas so far.

Best,
Michael



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