Eight thousand cubic feet per minute of air at 100 8F with a relative humidity of 15% enter the evaporative cooler of Fig. 11.35. Water at 40 8F enters the cooler and is completely evaporated. The air leaves the humidifier at 70 8F. Calculate the mass flow rate of water entering the dehumidifier and the relative humidity of the air exiting the device.

Transcribed Image Text:

Water Cooler Dry hot air 100 F air 70 F 15% Water pan