1. A meeting hall is to be maintained at 25 °C, 18 °Cwb. The space latent heat gain is 4 kW and 16 kW sensible cooling load. Outdoor conditions are 35 °C, and 50 % RH. Assume that 15 % by weight of the supply air to the room is outdoor air. The recirculated air passed through a cooling equipment and then mixed with the outdoor and conditioned air is supplied to the room at a temperature not lowered than 18 °C. Determine
mass and volume of air supplied to the space, tons of refrigeration required of the cooling equipment, average cooling coil surface temperature or APDT.