Effect of Blade Number on the Performance of a Centrifugal Pump Using Commercial Tool ANYS 91.2

Daniel-Kyei Kankam, Castro Owusu- Manu Kwabena, Dominic Boateng and Alexander Fordjour
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Daniel-Kyei Kankam: Takoradi Technical University, Faculty of Engineering, Takoradi, Western Region, Ghana
Castro Owusu- Manu Kwabena: Ho Technical University, Faculty of Engineering, Ho, Volta Region, Ghana
Dominic Boateng: Faculty of Engineering and Technology, Department of Mechanical Engineering, Kumasi Technical University, Kumasi, Ashanti Region, Ghana
Alexander Fordjour: Koforidua Technical University, Faculty of Engineering, Koforidua- Eastern Region, Ghana

International Journal of Research and Innovation in Applied Science, 2023, vol. 8, issue 7, 92-99

Abstract: Computational fluid dynamics (CFD) is frequently used in centrifugal pump design. The characteristics of the flow fields around turbomachinery can be simulated using tools for numerical computational fluid dynamics in three dimensions. Numerical simulation, which also provides significant information for the hydraulic design of the centrifugal pump, can be used to visualize the internal flow condition of a centrifugal pump. The purpose of this study was to examine the effect of blade number on the hydraulic performance curve using a commercial instrument. ANSYS 91.2. code commercial.The geometric model of the pump was built using CF turbo, and the flow domain was meshed using the commercial programme ICEM. The results demonstrated that an increase in the number of blades significantly improved the hydraulic performance of the centrifugal pump’s head. The findings also revealed that the area of the low-pressure zone at the blade’s input suction grew and that the static pressure distribution homogeneity in the diffusion section was significantly better than that in the spiral section. The design flow of 35 m3 per hour is where the best efficiency point (BEP) is located. At Z = 6 and Z = 7, the head values were 51.58 m and 53.13 m, respectively, while the efficiency values were 50.32% and 53.35%. The comparison of the H-Q curve for estimated head discharge indicates that all impeller efficiency curves share the same fundamental tendency.

Date: 2023
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