Friction pump performance formulation

Abstract EN

An attempt was made to formulate the overall performance of the multiple-disc friction pump, first by dimensional analysis, then by deriving and solving the integral momentum equations for laminar flow with respect to a rotating frame attached to the axis of rotation.

The performance of the stator is taken into consideration by defining a diffuser conversion efficiency which is then used, in addition to the rotor performance, to describe the overall per- formance of the pump in terms of the relevant input parameters, and to gener- ate the head and efficiency characteristics.

The method was demonstrated for a typical set of values of the governing input parameters.