Qu. 2 A volumetric flow rate of 3,250 m³/h of outside air at 36 °C dry bulb and 25 °C wet balls temperatures is mixed with 9,500 m/h of return air at 25 °C and 50% relative humidity The air mixture passes through a cooling coil such that the supply air leaving the coil is at 90% relative humidity. The sensible heat ratio of the conditioned space is 0.70. Sketch the process on the psychrometric chart and find the followings: (a) Apparatus dew point and supply air dew point temperatures. (b) Dry bulb temperature of the supply air (c) Cooling capacity of the cooling coil. (d) Sensible and latent heating loads of the space. (e) Select a model number of a packaged air conditioning unit that satisfies the above data State all rated parameters of the selected unit.