Convert 75 scfm to fps
air @ 85f, 50 psig
id pipe: 13.84mm
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Explanation:

Given:

Diameter of the pipe = 13.84mm

scfm is abbreviation for standard cubic feet per minute

and fps is abbreviation for feet per second

now

thus, for 75scfm we have

 ...........(1)

now, the area (A)of the pipe

A = = 150.439 mm²

Now,

1mm = 0.00328084 ft

1mm² = (0.00328084 ft)² = 1.07639×10⁻⁵ft²

thus,

150.439 mm² =150.439 × 1.07639×10⁻⁵ft² = 1.619×10⁻³ ft² ............(2)

Dividing the  (1) with (2)

we get

thus,

for the given pipe