A combination of air cooler and dehumidifier unit receives outside air at 35 C,

Question

A combination of air cooler and dehumidifier unit receives outside air at 35 C, 100kPa,90% realtive humidity. the air water-vapor mix is first cooled to a low temperature to condense the proper amount of water, after which the air-vapor mixture is heated, leaving the unit at 20C, 100kPa, 30% relative humidity. the volume flow rate of the air-vapor mix at the exit conditions is 0.01 m^3/s.

a)find the temperature to which the mixture is initially cooled, and the mass of the water condnsed per kilogram of dry air.

b)assuming that the liquid water condensed leaves the unit at the minimum temperature, calculate the heat removed in the cooling system and the heat added in the final section.

Explanation / Answer

Pv1 = ?1PG1 = 0.9

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