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Question 12.18: In a standard vapour compression refrigeration cycle, operat...

In a standard vapour compression refrigeration cycle, operating between an evaporator temperature of – 10°C and a condenser temperature of 40°C, the enthalpy of the refrigerant, Freon-12, at the end of compression is 220 kJ/kg. Show the cycle diagram on T-s plane. Calculate :
(i) The C.O.P. of the cycle.
(ii) The refrigerating capacity and the compressor power assuming a refrigerant flow rate of 1 kg/min. You may use the extract of Freon-12 property table given below :

t(°C) p(MPa) h_{f} (kJ/kg) h_{g} (kJ/kg)
– 10
40
0.2191
0.9607
26.85
74.53
183.1
203.1

(GATE)

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