Using change in pressure to find SCFM
Using change in pressure to find SCFM
(OP)
I am building a test stand to test air manifold assemblies. I want to use a change in pressure (psi/min) to find what the flow was (SCFM). I will find the pressure drop by pressurizing the manifold, sealing it, and measuring the beginning and end pressure over a set time. Can anyone help with an equation I could use to do this?
RE: Using change in pressure to find SCFM
RE: Using change in pressure to find SCFM
RE: Using change in pressure to find SCFM
Assume the tank expansion was slow enough there was not a change in the temperature, the mass in the tank before and after can be calculated and the differance is the mass through the manifold PV=mRT.
I think (Pi X V1) - (Pf X V1) = Volume discharged, thus
94 X 10 - 84 X10 = 100 gallons (~13.4 CF)
If the tank changes temp, then include the Ti and Tf
RE: Using change in pressure to find SCFM
RE: Using change in pressure to find SCFM
RE: Using change in pressure to find SCFM