A large refrigeration plant is to be maintained at -18oC, and it requires refrigeration at a rate of 200 kW. The condenser of the plant is to be cooled by liquid water, which experiences a temperature rise of 8oC as it flows over the coils of the condenser. Assuming the plant operates on the ideal vapor-compression cycle using Refrigerant-134a as the working fluid between the pressure limits of 120 kPa and 700 kPa, determine
(a) The mass flow rate of the refrigerant,
(b) The power input to the compressor and
(c) The mass flow rate of cooling water.