HYDRAULIC and mechanical analysis of The vertical turbine Pump

Abstract

Pumping is the process of adding energy to the fluid to move it from one point to another. The main task faced by an engineer while drawing a pump design is with meeting the ends with the economics and the hydraulic operating characteristics. Computational Fluid Dynamics (CFD) has been widely used in analysis of 3D complex fluid flows present inside the pump hydraulic passages. The hydraulic analysis of a Vertical Turbine pump is performed using CFX software. CFturbo software has been used to carry out geometry modeling of the pump. The overall goal of this work is to study the streamline and contours of pressure and velocity in a Vertical Turbine pump (Impeller and Bowl) .The hydraulic performance of the pump is affected by geometrical parameters like Eye Diameter, Impeller outlet diameter, impeller outlet width. The effect of change in impeller outlet width on the performance of Vertical Turbine pump is analyzed in this study with the help of numerical calculations. The mechanical analysis is done to analyze stress generated in bowl and optimizing the thickness of bowl. The Vertical turbine pump shaft is analyzed to find out torsional stress generated during working condition.