A R-12 refrigerating machine works on vapour-compression cycle. The temperature of refrigerant in the evaporator is -20^∘ C. The vapour is dry saturated when it enters the compressor and leaves it in a superheated condition. The condenser temperature is 30^∘ C. Assuming specific heat at constant pressure for R-12 in the superheated condition as 1,884  kJ / kg . K, determine: (a) condition of vapour at the entrance to the condenser: (b) condition of vapour at the entrance to the evaporator; and (
A R-12 refrigerating machine works on vapour-compression cycle. Th…
Jun 8, 2021
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