A large frozen food storage building is to be maintained at -10 °C. The cooling load is 243 kW. An ideal R-134a vapor-compression refrigeration cycle is to be used for the cooling. Saturated vapor enters the compressor at 100 kPa, and saturated liquid leaves the condenser at 800 kPa. Water used to cool the condenser

experiences a 10 °C temperature rise. Determine:

A. The mass flow rate of the refrigerant (in kg/s)

B. The power input to the compressor (in kW)

C. The cycle coefficient of performance

D. The water mass flow rate (in kg/s).