223. Saturated vapor ammonia at -16°C (hT = 1442.60 kJ/kg) leaves the evaporator and enters

the compressor at -6°C (h1 = 1465 kJ/kg). The refrigerant leaves the condenser as saturated

liquid at 40°C (h4 = 390.6 kJ/kg) and enters the expansion valve at 35°C (h5 = 366.1 kJ/kg). Heat

rejected from the condenser amount to 50 kW. The work to compressor is 208 kJ/kg, while the

heat loss from compressor is 33 kJ/kg. If 95 kJ/kg of heat are lost in the piping between the

compressor discharge and condenser inlet, determine the refrigerating capacity of the system.

A. 49.5 TR B. 46.61 TR

C. 12.88 TR D. 13.24 TR