In a standard vapor compression refrigeration cycle, operating between an evaporator temperature of -10 C and a condenser temperature of 40 C, the enthalpy of the refrigerant, R12 (Freon 12) at the end of compression is 220 kJ/Kg. Show the cycle diagram on T-s plane.
Calculate,
A. The COP of the cycle
B. The refrigerating capacity and the compressor power assuming a refrigerant flow rate of 1 kg/min
You may use the exact of the R12 property table given below.
At -10 C,
P = 0.2191 MPa
hf = 26.85 kJ/kg
hg = 183.1 kJ/kg
At 40 C,
P = 0.9607 MPa
hf = 74.53 kJ/kg
hg = 203.1 kJ/kg
Answer:
