ANSYS-CFX Simulation and Experimental Studies on Centrifugal Pump Impeller Design: Performance Effects Using Corrosive and Non-corrosive Resources

Isa  Umaru Usman; Kashif  Abbas; Abdulhalim  Musa Abubakar; Ronny  Mönnig; Aminullah Zakariyyah Abdul; Mazen Abdul-Jabbar  Alhodali

Authors

Isa Umaru Usman 1Department of Chemical Engineering, Faculty of Engineering, University of Maiduguri (UNIMAID), P.M.B. 1069, Bama Road, Maiduguri, Borno State, Nigeria https://orcid.org/0009-0002-5438-5105
Kashif Abbas School of Mechanical Engineering, Faculty of Engineering, Xian Jiaotong University, Shaanxi, China
Abdulhalim Musa Abubakar Modibbo Adama University https://orcid.org/0000-0002-1304-3515
Ronny Mönnig Project Manager: Department of System Calibration | Business Area Future Powertrain, IAV, GmbH, Berlin, Germany
Aminullah Zakariyyah Abdul Department of Chemical Engineering, Faculty of Engineering, Federal University Wukari, Wukari, Taraba State, Nigeria https://orcid.org/0009-0005-3823-2856
Mazen Abdul-Jabbar Alhodali YemenLNG Company, Yemen https://orcid.org/0000-0003-3499-9695

Keywords:

ANSYS, Centrifugal pump, Impeller, Performance curve, Computational fluid dynamics, BladeGen, Finite element analysis, Blade angle

Abstract

Corrosive fluids, namely saline water, hydrochloric acid and methanol and non-corrosive fluids, namely, water, gasoline and kerosene can be tested for efficiency and reliability on an existing H47 centrifugal pump impeller’s performance. To analyze the pump performance, ANSYS student version 2022 software was used – wherein; head rise (H), pump speed (N), discharge rate (Q) and inlet pressure of 20-120m, 2000rpm, 144m³/h and 0 atm were respectively specified as initial and boundary conditions in the computational fluid dynamics (CFD) tool. CFD for inlet and exit blade angles of 35^o, 38^o, 41^o and 47^o, 50^o, 53^o were respectively simulated for all fluid type using a 7-bladed impeller to obtain contour plots and pressure and velocity distribution results of the analysis. It was deduced that the overall efficiency of the centrifugal pump depends on the outlet blade angle and fluid type, while the power used rises with both inlet and outlet blade angles. Further studies should be channeled towards analyzing the variations in N, Q, H, impeller blade number (Z) and its width, for this particular type of impeller.

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