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what is formula between air flue and air reveloution per minute(rpm)

what is formula between air flue and air reveloution per minute(rpm)

what is formula between air flue and air reveloution per minute(rpm)

(OP)
hi
i have a fan that i dont have a revloution per minute(rpm) but air velocity blow between its vane is X km/h and air flue is Y m3/h.if there is relation to find rpm please guide me.

RE: what is formula between air flue and air reveloution per minute(rpm)


Axial or centrifugal? There are several configurations of each, with substantially varying flow characteristics.

You don't have the manufacturer's curves/tables?

Do you know the static pressure (SP)?

For a given installation, the outlet velocity (km/h) and the flow quantity (m3/h) are directly proportional (fan output typically assumed incompressible), so you really only have one parameter so far, not enough information.

RE: what is formula between air flue and air reveloution per minute(rpm)

(OP)
hi
mant thanks for your answer.i have a horse power of fan and my vane is axial.i have just these 2 items.please guide me.

RE: what is formula between air flue and air reveloution per minute(rpm)

Why wouldn't you use a strobe to measure the RPM directly, if that is all you are after?


RE: what is formula between air flue and air reveloution per minute(rpm)

soheil1979,

it is best to contact the OEM (equipment manufacturer) and obtain the requested information from them.  we simply cannot help you . . . without more information.

good luck!
-pmover

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