Abstract: There are so many parameters effect on pump performance like impeller diameters, width, inlet outlet angles, and blades numbers, many conventional studies of centrifugal pump are largely used of empirical application of empirical rules along with the use of the available information in the form of different types of charts and graphs as proposed by successful designers. Generally all parameters effect on each other to improve the pump performance should study the relationship between the main parameters, we study the effect of outlet blade angle on the pump performance by depended on the analytical methods, we calculate the major parameters for the require design (Q=1000 m3/h, H=40 m) like output, input diameters , width, blade radius, inlet angle, slip factor ,theoretical head throw the range of outlet angles from 22 to 40 degrees after that calculate the efficiency for each angle and change blades numbers “2 to7” increase outlet angle mean the head, discharge, power consumption , increase the blades number mean increase the head and reduce the discharge area lead to increase the discharge . Therefore from all these parameters we find the best efficiency at angle 25o with six blades. Also we design a closed type impeller model by CATIA V5-6R2013 program depended on the calculation data and analysis the model by ANSYS Workbench 14.5 structural and fluent analysis by use stainless steel metal, in the structural analysis applied the calculation torque 837 N.m on inside and the requirement pressure 4 bar on the blades area the maximum stress appear on greave between the shaft and impeller, in the fluent applied on the impeller inlet the fluid water speed 2 m/s and atmosphere pressure then we calculated the distribution of pressure , velocity, velocity vector, wall shear and forces on impeller area.
Keywords: Impeller diameters, width, inlet outlet angles, and blades numbers, Optimum Design and Structural Analysis.
Title: Optimum Design and Structural Analysis of Centrifugal Pump by Varying Outlet Vane Angle
Author: RAAD ARIF MOHAMMED, PROF. GOPI KRISHNA
International Journal of Mechanical and Industrial Technology
ISSN 2348-7593 (Online)
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