Prof Bina,
Type927 models an on/off heat pump that has a constant speed compressor. In order to maintain a desired outlet temperature you would need to use a model of a variable speed compressor heat pump that can internally adjust its capacity. We have written such a model and it is scheduled for release sometime later this year.
A double u-tube well can be modeled using Type557, which is in the TESS GHP library.
kind regards,
David
Dear users;
I hope you all are well and safe. I am modeling a water to water ground source heat pump (Type 927) in our lab and would like to validate it with the actual data.I have two main questions as follows:1- How we can control the heat pump unit based on the outlet load temperature (for example 40 C in winter). Since there is no thermostat in the room, only we give the desire outlet load temperature (temperature of the water that goes to the fan coil in the room). Therefore, HP maintains this temperature all time.2. In the gound loop side, the fluid goes to the two parallel vertical "double" U-tube wells. So my question is how is it possible to model Double U_tube in TRNSYS?
Thank you very much in advance, I am looking forward to hearing from you.
Best Regards
Saeid Mohammadzadeh Bina, Dr. (Eng.)-------------------------------------------------Akita University
Graduate school of International Resource Sciences.
1-1 Tegata gakuen-machi, Akita 010-8502, JapanTel: +815068665026 (Japan)+989141011757 (Iran)E-mail: d9515254@s.akita-u.ac.jp-------------------------------------------------
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