calculating cfm
calculating cfm
(OP)
Does anyone have a formula for calculating the cfm of air using the line diameter and the air pressure.
Any help would be appreciated.
Joe
Any help would be appreciated.
Joe
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RE: calculating cfm
thats a sticky question.
Could take a while to explain properly.
Problem is that its not the pressure that moves the air.
Are you in a postition to explain what you are trying to do in a little more detail?
Would make the answers a lot more useful to you.
Cheers
Steve
RE: calculating cfm
RE: calculating cfm
Besides, CFM is a rate, meaning a time factor is included. If you have a bulk average linear velocity (also a rate) you'd be able to estimate the CFM.
Otherwise one should proceed by installing a Pitot tube, or any known obstruction measuring the friction drop, as ChrisConley suggests, which, in effect, is a step meant to estimate the bulk linear subsonic velocity of the fluid, or by the introduction of a tracer and its detection at two fixed points.