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Calculation of compressed air flowrate

Calculation of compressed air flowrate

Calculation of compressed air flowrate

(OP)
I need to find out the flowrate of compressed air for air nozzle. Anyone knows the formula to calculate the flowrate?

RE: Calculation of compressed air flowrate

There are several formulae.  Some are more/less convenient depending on the data you have handy.  Here is one:

mass flow rate = P*A*M*(gamma/(R*T))^0.5

where

P is static pressure
A is area
M is mach number
gamma is ratio of specific heats (1.4 for air)
R is gas constant
T is static temperature

Make sure you use consistent units and make sure that P, A, M, and T are values from the same cross section of the flow.

If your flow is choked, the formula can be simplified.

Haf

RE: Calculation of compressed air flowrate

Give temp,Press,linesize and fittings.I give you flow and also whether the fluid is chocked or not.

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