Analyzing Cooling Towers
In the condenser of a power plant, energy is discharged by heat transfer at a rate of 836 MW to cooling water that exits the condenser at 40°C into a cooling tower. Cooled water at 20°C is returned to the condenser. Atmospheric air enters the tower at 25°C, 1 atm, 35% relative humidity. Moist air exits at 35°C, 1 atm, 90% relative humidity. Makeup water is supplied at 20°C. For operation at steady state, determine the mass flow rate, in kg/s, of
(a) the entering atmospheric air.
(b) the makeup water.
Ignore kinetic and potential energy effects.
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