I am working on a warehouse that will have a battery charging station in it, and I will need to provide exhaust. I have found information on battery charging rooms talking about number of air changes per hour, but since this is just a small corner space of the whole warehouse, that doesn't really apply. I also saw where ASHRAE 62 calls for 1 CFM/charging ampere. The IMC just calls for ventilation as required.
I was thinking about installing a hood of some sort with a flow rate determined by using the 1 cfm/charging ampere. There will be an explosion proof fan on the roof. Any other ideas?
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