In a heating/humidifying system moist air first flows through a heating coil and then through an air washer. The air enters the system at 55 °F dry-bulb temperature and 40 % relative humidity. The air exits the system at 90 °F dry-bulb temperature and 65°F thermodynamic wet-bulb temperature. The flow rate through the system is 2200 lbma/hr and the process occurs at a pressure of 29.921 in. Hg. Determine:
a. The dry-bulb temperature of the air as it exits the heating coil,
b. The rate of heat addition to the air by the heating coil,
c. The rate of moisture addition to the air by the adiabatic saturator