Vapour compression refrigeration cycle using ammonia as refrigerant has a capacity of 30 TR . Evaporator and condenser temperatures are
-16\deg C
and
50\deg C
respectively. Ammonia enters the compressor in dry saturated state and leaves the condenser after complete liquefaction. Specific heat of ammonia vapour is
2.3k(J)/(k)gK
. Sketch the cycle on
T-s
and
P-h
plots and Calculate the following: (a)Max. COP of the System (b)Mass flow rate of ammonia in
k(g)/(h)r
(c)Power supplied to compressor in kW (d) Heat Rejected in Condenser in kW