Description: shar of the conveying power P_u and the power absorbed by the drive P_mot; Name: tot eff
Description: determined proportion of the driver power input, pmot, delivered as pump power output, pu; Name: overall efficiency
Description: pump H(Q) curve where the maximum head and shut-off head are coincidental, and the total head declines continuously as the rate of flow increases; Name: Pump H(Q) curve