Air quantity
Air quantity
he amount of air flowing through a mine or a segment of a mine, in cubic meters per second. Air quantity is the product of the air velocity times the cross-sectional area of the airway.
In mining, the quantity (Q) of air flowing in cubic meters per second. It is obtained by multiplying the average velocity (V) in meters per second by the area (A) of the airway in square meters; i.e., Q = AV.