How do you calculate CFM for exhaust fans?

Finding the right industrial exhaust fan requires a bit of mathematics. If you are in the look-out for exhaust fan suppliers in Sri Lanka please get in touch with us for us to help you out with selecting the most suitable fan to suite the requirement.

CFM (cubic feet per minute) of air exchange is the calculation used to find the most suitable exhaust fans that may suit your building space. Whether it is to exhaust air or to bring fresh air into a structure the result of this calculation should help to figure out the size of fan(s) required to support the required air exchanges.

Following is the basic method / equation to calculate the CFM.

CFM = Room Volume / Minutes per Air Exchange | Room Volume = L x W x H (room dimensions)

Apart from the aforementioned calculation following facts also to be considered.

No. of people are to be occupied, No. of Heat Generation Sources available, Total Heat Load of Sources, Area of Opening available at wall of the building for fresh air inflow, Type of roof and height etc.

The above facts will be considered to decide the require number of air changes.

If you are in the look-out for exhaust fan suppliers in Sri Lanka we are here to support you and to help you find the best solution.

How do you calculate CFM for exhaust fans?

Leave A Reply Cancel reply

we will assist you

Request a free Consultation

We help our clients archive

Address

Contact

Quick Links