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A commercial refrigerator with refrigerant-134a as the working fluid, at a rate of 0.0455 kg/s. The refrigerant enters condenser at 1.2 MPa114-fia and 60°C and leaves at 42oc. The inlet state of the compressor is 60 kPa ands -20 °C.
Determine
(a) the refrigeration load QL,
(b) The COP of the refrigerator.
(c) If the isentropic efficiency of compressor is 0.8 calculate the actual work of the compressor.
(d) the quality of the refrigerant at the evaporator inlet (x).
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