SCFM to ACFM:

SCFM x (P1 / P2) = ACFM

ACFM to SCFM:

ACFM x (P2 / P1) = SCFM

SCFM to ACFM (w/termperature):

SCFM x (P1 / P2) x (T2 / T1) = ACFM

ACFM to ACFM:

ACFM x (P1 / P2) = ACFM (adjusted)

Pumpdown of a Closed System:

S = 2.3 x (V / T) x log(P1 / P2) Solve for
Capacity

T = 2.3 x (V / S) x log(P1 / P2) Solve for Time

Determine Receiver Size (V2):

V2 = V1 x (P1 – P3) / (P3 – P2)

Solve Leak Rate for Capacity:

S = (V x (P2 – P1) / t) x (1 / P1)

Pounds per Hour to ACFM:

S = (lbs. / 60) x (385 / MW) x (760 / P2) x ((460
+ T / 528)

Surface Area of a Pipe:

3.1416 x R x R (radius should be in feet)

Face Velocity:

F.V. (in feet/min) = ACFM or SCFM / Square Feet of
Media

Degrees Fahrenheit to Degrees Rankine:

Degrees F + 460 = Degrees
R