SCFM to ACFM

The ACFM is Actual Cubic Feet per Minute, The SCFM is Stand. Cubic Feet per Minute

SCFM
stand. air press. (psia)
stand. air temp. (oR)
actual conditions
air press. (psia)
saturation press. (psia)
relative humidity
amb. air temp. (oR)

SCFM to ACFM formula

ACFM = SCFM [Pstd / (Pact - Psat Φ)](Tact / Tstd)

where

SCFM = Standard Cubic Feet per Minute

ACFM = Actual Cubic Feet per Minute

Φ = Actual relative humidity

Pstd = Standard absolute air pressure (psia)

Tstd = Standard temperature (oR)

Psat = Saturation pressure at the actual temperature (psi)

Tact = Actual ambient air temperature (oR)

Pact = absolute pressure at the actual level (psia)

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