A Research based on the Comparison between Volute & Concentric Casing of High Speed Centrifugal Pump
This paper describes experiment that are conducted on a single stage open impeller high speed centrifugal pump
with two different types of casings that are volute and concentric. The purpose of this experiment is to evaluate the
performance of the pump with same impeller having backward curved blades with different casing arrangements. An
analysis of the test data is conducted and a review was also done simultaneously. The performance characteristics considered
are efficiency, head, discharge, specific speed. The review and experiments concludes that there is a comparative rise in the
range of efficiency when non-dimensionalised.
Keywords - Ns (Specific Speed), Head (H), Discharge(Q), Efficiency(η), Concentric Casing, Volute Casing.