Reciprocating Compressors Volumetric Efficiency – Actual Inlet Flow

Actual inlet flow (ICFM) to the cylinders is determined by the equation:

ICFM = Q = VdEv
(Eq. 300-4)

Vd = displacement rate, CFM
Ev = volumetric efficiency expressed as a decimal.

Note When Ev appears in an equation, it is expressed as a decimal value, not a percent.

(Refer also to Section 100, Equations 100-14 and 100-15 for other Q relationships.)

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