Cubic Feet per Minute

CFM is the abbreviation of Cubic Feet per Minute , unit not-IF (thus to prevent) flow.

Conversion in the units of the system international (IF)

The unit of flow is m3 a second:
1 CFM = 0,000471947443 m3 per second (m3/s)
But it is more practical to use the derived unit: liter a second or m3 per hour
1 CFM = 0,471947443 liter a second (l/s)
1 CFM = 1,6990107955 m3 per hour (m3/h)

, unit of area under a difference in pressure specifies which can be indicated by a height: it is a homogeneous size on a surface. For the CFM, measures origin anglo-saxone, the pressure of reference is 0,5 Pouce of water column. The unit IF is m2; an old unit, the Darcy is also of use. -->

example

The manufacturers of ventilators for computer or processor often indicate the air flow of their apparatuses in CFM (typically a few tens). Thus, an apparatus of 50 CFM makes pass a flow of 23,5 liter a second.

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