Moist air enters an adiabatic humidifier system at 1 atm, 15 °C, with a relative humidity...

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Mechanical Engineering

Moist air enters an adiabatic humidifier system at 1 atm, 15 °C,with a relative humidity of 20%. The volumetric flow rate of theincoming moist air is 150 m3/min. Saturated water vapor at 1 atm isinjected into the flow such that the outlet temperature is 30 °Cand the outlet relative humidity is 40%. The pressure is constantin the humidifier system. Determine the mass flow rate of thesaturated water vapor entering the humidifier at state 3, inkg/min. Note: The molar mass of air is 28.97 kg/kmol and the valueof the universal gas constant is R¯ = 8.314 kJ/(kmol*K)

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