AREN 4110/5110 BUILDING ENERGY SYSTEMS ENGINEERING Spring 2024 Problem HW3P5 In a VAV air conditioning system in a building, 80 L/s of outdoor air at 30 °C db and 15 °C wb is mixed with recirculation air at 24 °C and then enters a cooling coil. The air leaves the coil at 8 °C and 95 % RH. The zone sensible heat ratio is 8. Determine the circulation flow rate, zone humidity ratio, and (in kW) the total zone load, ventilation load, and coil load for the following sensible loads: a. 15 kW b. 10 kW Draw some conclusions from your results.

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