A wet cooling tower is to cool 60 kg/s of water from 40 to 33C. Atmospheric air

Question:

A wet cooling tower is to cool 60 kg/s of water from 40 to 33°C. Atmospheric air enters the tower at 1 atm with dry and wet-bulb temperatures of 22 and 16°C, respectively, and leaves at 30°C with a relative humidity of 95 percent. Using the psychrometric chart, determine

(a) The volume flow rate of air into the cooling tower

(b) The mass flow rate of the required makeup water.

Air 30°C exit 95% Warm water 60 kg/s 40°C AAAAAA Air inlet 1 atm Ta = 22°C Twb = 16°C 33°C db Cool water Makeup water