标题: 大家来看看我写的哪里有不妥?(文盲慎入!) [打印本页] 作者: 烂泥 时间: 2010-4-12 14:24 标题: 大家来看看我写的哪里有不妥?(文盲慎入!) Based on your photos, we can use the following to estimate the airflow of each machine.
E.g. I assume the opening area = 1m x 0.5m = 5.4 sq. ft
5.4 sq. ft x 50 fpm = 270 cfm (460 m3h)
However, as you pointed out that the duty of work is 24-hour, we need to further de-rate 33~50% of the total estimated airflow to suit. Otherwise, there will be significant impact on the filter life.
E.g. 460 m3h x 10 points = 4,600 m3h
4,600 m3h / (1-0.33) = 6,865 m3h
Please review with the actual door opening dimension to evaluate, I just give you a rough estimate above.
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