An ideal vapor-compression refrigeration cycle, with ammonia as the working fluid, has an evaporator temperature of -20c and a condenser pressure of 12 bar. Saturated vapor enters the compressor, and saturated liquid exits the condenser. The mass flow rate of the refrigerant is 3 kg/min. Determine:
- The coefficient of performance
- The refrigerating capacity, in tons
This solution is provided in 315 words in an attached .doc file. It uses a schematic T-s diagram for the system to enhance learning. It describes how to solve the problem by using thermodynamic properties.