2011•Journal of Mechanical & Electrical EngineeringRequires access

Optimization and analysis of efficiency for centrifugal pump with semi-open impeller

Xin Fu

Abstract

To improve the hydraulic efficiency of the centrifugal pump with semi-open impeller,the speed coefficient method was used to optimize the hydraulic efficiency.The k-e turbulence model and standard wall function were applied to simulate the centrifugal pump.The effects of different clearances and numbers of vane on pump hydraulic efficiency were simulated and analyzed.It is showed that the efficiency of centrifugal pump has satisfactory result,while the clearances between volute and impeller is 0.5 mm,the number of vane is 6.

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Key concepts: Impeller, Volute, Centrifugal pump, Rotodynamic pump, Mechanical engineering, Specific speed, Turbulence, Slip factor