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The relation between pressure, p, and volume, Q, in the ventilation of a
mine. If the resistance, R, of the mine is known, then the mine
characteristic can be expressed as p=RQ2 . The curve of this
equation for a particular mine may thus be plotted on the same axes as the
characteristics of a fan. The point of intersection of this curve, termed
the mine characteristic, with the pressure characteristic of the fan,
indicates the pressure and volume at which the fan would work in
ventilating that mine. Knowing the volume and pressure, the power and
efficiency are obtained. The suitability of any fan to any mine can be
studied, and the effect of possible changes in mine resistance may be
predicted. Roberts, 1
Source:
Dictionary of Mining, Mineral, and Related Terms
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