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Moist air is heated and humidified by passing it first over a heating coil and then...

Moist air is heated and humidified by passing it first over a heating coil and then adding moisture. The moist air enters the system at 6°C DBT and 4°C WBT at a rate of 100 kg/min. The humidifier injects saturated steam at 108°C. The moist air exits the system at 30°C DBT and 40% RH. Determine the rate of heat addition by heating coil and the rate of mass addition by the humidifier.

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