A wet cooling tower is to cool 100 kg/s of cooling water from 45oC to 24oC at

Question:

A wet cooling tower is to cool 100 kg/s of cooling water from 45oC to 24oC at a location where the atmospheric pressure is 94 kPa. Atmospheric air enters the tower at 18oC and 65% relative humidity and leaves saturated at 32oC. Neglecting the power input to the fan, determine (a) the volume flow rate of air into the cooling tower and (b) the mass flow rate of the required makeup water.