Hi everybody,
I'm new in Trnsys and i work on my bachelors Thesis. I have a problem with my water-water heat pump(type 668) and my stratified storage tank(type 4e).
I try to heat my building model to room temperature(20°C) with floor heating and the heat pump. Between the two components, i have a storage tank.
Now the problem is that my heat pump provides a high load temperature but in fact i don't need a high temperature because a floor heating system doesn't
need a high inlet temperature. Unfortunately type 668 doesn't have a parameter where i can set the outlet temperature. The only thing i can do is to reduce the
parameter "boiling point" of water in my storage tank less than 100°C to have a moderate heat pump outlet temperature but i think it doesn't make sense because
the boiling point of water is about 100°C. Now i wonder how i can control my heatpump to heat the water to the desired temperature. I guess the high temperature is depending
to the boiling point of the storage, i think the heat pump always try to reach this point of temperature.
Thank you for your helps,
Best Regards,
Fahri Avci
TUM München
Lehrstuhl Energiewirtschaft und Anwendungstechnik
Arcisstraße 21 München