What is the difference between CFM; ICFM, ACFM & SCFM?

[Kshn]

What is the difference between CFM; ICFM, ACFM & SCFM? for flow calculation of Air compressor?

 

[mk3223]

Suggest to google the clear definitions for these terms.

 

[LittleInch]

Try this

http://www.eng-tips.com/viewthread.cfm?qid=339851

and do a search on this site. A common question.

Not sure what ICFM is though?

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[Artisi]

I Can't Find Mum to help me.

It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts. (Sherlock Holmes - A Scandal in Bohemia.)

 

[LittleInch]

Inlet cfm I reckon.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[LittleInch]

Cfm, ICFM, scfm, at sea level basically all the same. ACFM depends on the pressure it's quoted at. So might be the same or if quoted at say 100 psi is the actual output at that pressure.

Because this will be much lower than the others my cynical hat says vendors will quote the bigger numbers. ..

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[bimr]

Pressure * Volume = Pressure * Volume

ACFM = Actual Cubic Feet per Minute at the operating conditions

SCFM = Standard Cubic Feet per Minute at Standard Conditions

SCFM is normally used to designate flow in terms of some base or reference pressure, temperature and relative humidity. Many standards are used, the most common being the Compressed Air & Gas Institute (CAGI) and the American Society of Mechanical Engineers (ASME) standards, which are 14.7 PSIA, 68°F and 36% relative humidity (RH). This converts to a density of 0.075 lbs/cu.ft. for air.

CFM = cubic feet per minute

ICFM = inlet cubic feet per minute into the blower