Design and Analysis of Centrifugal Impeller

Abstract

Centrifugal pumps are used widely in different industries for various industrial purposes. Since performance of pump is affected by vibrations and depends on the blade inlet or outlet angle. The performance of the centrifugal pumps can be improved by alternating the geometric characteristics of impeller in the pumps. Centrifugal pump performance mainly depends upon blade exit angle. The vibration is mainly caused by blade exit angle. The rotating of the blade is based on the natural frequency and mode shapes. The impeller chosen for the study was a single- entry impeller with radial vanes. Using Creo 4.0 and ANSYS Workbench software the modeling and simulation of the impeller have been carried out. The respective frequencies and corresponding mode shapes impeller were measured by using eigenvalues and eigenvectors respectively. The results showed that the varying impeller blade exit angle had significant effect on natural frequency of the impeller.