7. Returned air at 22C DB and 50% RH is mixed with equal flow rate of outdoor air at 30C DB and 26C WB. The mixed air is cooled by passing over a cooling coil to achieve an absolute humidity of 0.008 kg/kg. Determine: The dry and wet bulb temperatures and humidity ratio of the mixed air. The rate of condensation and heat transfer from the mixed air. i) ii) (Ans: (i) 26 C; 21.3 C; (ii) 0.00594 kg/s; 30.63 kW)