Steam enters the condenser of a steam power plant at 30 kPa and a quality of 90% with a mass flow rate of 300 kg/min, and leaves the condenser as saturated liquid at 30 kPa. It is to be cooled by water from a nearby river by circulating the water through the tubes within the condenser. To prevent thermal pollution, the river water is not allowed to experience a temperature rise above 5oC. Determine
(a) The mass flow rate of the cooling water.
(b) The entropy generation rate in the heat exchanger.