Hi,

I have a refrigerant related problem and I am hoping you can help me. The question is:

A vapour compression refrigerator with AMMONIA as refrigerant works between 2.908 bara and 12.37 bara. Temperature after isentropic compression is 82 degrees C and the condensate is undercooled by 8 degrees C in the condenser.
What is the COP (Coefficient of Performance) of the refrigerant?

Looking forward to the answer or any pointers you can give me...

Please help!