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【HVAC Version】Daily Question 20180713 (Multiple Choice)

2018-07-13View Original

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If the cleanliness grade of a single-direction flow clean room is level 5, the room’s height is 4.0 m, its area is 60 m2, the average wind speed in the cross-section of the room is approximately 0.3 m/s, and the air change rate is below 350 times per hour, then the air supply volume for this clean room is ( ) m3/h. A 84000 B 64800 C 74400 D 148800B

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