2. A classroom with a capacity of 225 people is isolated from the outdoors except from the incoming ventilation air. The

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2 A Classroom With A Capacity Of 225 People Is Isolated From The Outdoors Except From The Incoming Ventilation Air The 1 (26.49 KiB) Viewed 33 times

2. A classroom with a capacity of 225 people is isolated from the outdoors except from the incoming ventilation air. The cooling load is 125,000 Btu/hr. with a SHF of 0.7. The minimum air requirement of 15 cfm/person is considered sufficient according to ASHRAE standards. (a) Compute the required amount of ventilation air (supply air) on the basis of the cooling load, assuming that the space dry bulb temperature is 75°F and 50% relative humidity and that the air is supplied at 90% relative humidity. (b) What should be the minimum air supply rate based on indoor air quality requirements? (c) Is the supply air flow calculated in part (a) sufficient to meet the indoor air quality requirements? (d) Find the dry bulb temperature of the air if the indoor air quality (IAQ) requirements are to be met. SHE 97 12.5,000 B