Description: ratio of the power required to compress the working fluid to the compressor input power; Name: mechanical efficiency of the pump
Description: determined proportion of the pump power input, p, available after satisfying the mechanical power losses, pj,ab, at given operating conditions; Name: mechanical efficiency
Description: Speed that characterizes a pump in terms of its speed, flow rate per impeller eye, i.e. total flow for single-flow impeller, half flow for double-flow impeller, at the best efficiency point and head per stage at maximum impeller diameter ; Name: Specific speed