Answer: In a vapor-compression refrigeration cycle,
Chapter 10, Problem 21P(choose chapter or problem)
In a vapor-compression refrigeration cycle, ammonia exits the evaporator as saturated vapor at \(22^{\circ} \mathrm{C}\). The refrigerant enters the condenser at 16 bar and \(160^{\circ} \mathrm{C}\), and saturated liquid exits at 16 bar. There is no significant heat transfer between the compressor and its surroundings, and the refrigerant passes through the evaporator with a negligible change in pressure. If the refrigerating capacity is 150 kW, determine
(a) the mass flow rate of refrigerant, in kg/s.
(b) the power input to the compressor, in kW.
(c) the coefficient of performance.
(d) the isentropic compressor efficiency.
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