Problem

Repeat Problem, but with the humidification process being performed through the addition o...

Repeat Problem, but with the humidification process being performed through the addition of steam at 212°F.

Problem

Moist air enters a heater and humidification system at a temperature of 35°F, 1 atm, a relative humidity of 70%, and a volumetric flow rate of 4.0 ft3/s. The air is to exit the system at 76°F and a relative humidity of 40%. The humidification process is to use evaporation of liquid water whose temperature is 60°F. Determine the temperature and relative humidity of the air between the heater and humidifier, the rate of heat transfer to the air through the heating element, and the rate of water addition to the air through the humidifier section.

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