SCFM OR ACFM, which one is right?
The answer is, they’re both right! But they are different. SCFM is essentially a molar flow rate disguised as a volumetric one. While a regular volumetric flow rate (ACFM or “Actual” CFM) changes if the gas gets hot or compressed, SCFM is fixed to a specific set of “Standard” conditions {Pstd} and {Tstd). Because those … Read more