Question: (a) How is the ratio of dry air flows related to specific humidity and enthalpy in an adiabatic mixing?
(b) In a power plant, cooling water leaves the condenser and enters a wet cooling tower at 35°C at a rate of 100 kg/s. The water is cooled to 22.8°C in the cooling tower by air that enters the tower at 101.325 kPa and 20°C and 60% relative humidity. Determine the flow rate of air into the cooling tower and the mass flow rate of the required makeup water.