Hp Qp [ r

With the volumetric flow (Q1) is expressed in m3/s and pressure (p) in Pascal, Equation 30-6 yields gas power in watts.

As noted above, the calculated power is not the true power input to the compressor. A series of additional losses, such as bearing and seal losses, must be added into the gas power to determine the shaft power requirement. Driver efficiency losses, as discussed below, must also be considered in determining the total system energy input requirement.

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