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## Main Question or Discussion Point

A natural draught cooling tower is designed to have a 3% loss of the mass of the water entering the tower by evaporation into the atmosphere. Atmospheric air enters the tower at a volume flow rate of 4 m^3/s a temp of 10C and a relative humidity of 50%. Air leaves the tower in a saturated condition at a temp of 34C. The atm pressure is 0.995 bar. The water enters the tower at a temperature of 36C. Find the mass flow rate of water entering the tower.

The problem is I don't know how to find the h for the water at the outlet, any suggestions? Thx~

The problem is I don't know how to find the h for the water at the outlet, any suggestions? Thx~