A concave impeller: A new modified semi-open impeller for higher performance of centrifugal pumps

Rahmat Azis Nabawi; Egi Fadillah; Haris Shiddiq Mulyadi; Muhammad Shadiq Fahrezi; Firza Fernanda Putra

doi:10.58712/jerel.v4i1.178

Authors

Rahmat Azis Nabawi Department of Mechanical Engineering, Faculty of Engineering, Universitas Negeri Padang, Indonesia
Egi Fadillah Department of Mechanical Engineering, Faculty of Engineering, Universitas Negeri Padang, Indonesia
Haris Shiddiq Mulyadi Department of Mechanical Engineering, Faculty of Engineering, Universitas Negeri Padang, Indonesia
Muhammad Shadiq Fahrezi Department of Mechanical Engineering, Faculty of Engineering, Universitas Negeri Padang, Indonesia
Firza Fernanda Putra Department of Mechanical Engineering, Faculty of Engineering, Universitas Negeri Padang, Indonesia

DOI:

https://doi.org/10.58712/jerel.v4i1.178

Keywords:

centrifugal pump, impeller design, CFD simulation, pressure distribution, volume flow rate, semi-open impeller

Abstract

The performance enhancement of centrifugal pumps is continuously pursued to meet increasingly complex operational demands. Ongoing improvements in pump component design, particularly the impeller, are essential to achieving optimal configurations. The impeller is a critical component that significantly influences the overall performance of centrifugal pumps. This study aims to develop an impeller design that offers higher performance compared to the original one. The methodology utilized was Computational Fluid Dynamics (CFD). The primary focus was on modifying the semi-open impeller type. Two modified impellers were developed with concave and convex design. They were simulated and compared to the original impeller configuration. The simulation results indicate that pressure distribution at the inlet remains similar for all designs. However, pressure variations at the outlet and differences in volumetric flow rate between inlet and outlet were found. The contour visualization of pressure and flow velocity for each impeller configuration shown from the CFD simulation results is further discussed, in terms of pressure distribution and flow trajectory pressure.

Downloads

Download data is not yet available.

References

Abo Elyamin, G. R. H., Bassily, M. A., Khalil, K. Y., & Gomaa, M. Sh. (2019). Effect of impeller blades number on the performance of a centrifugal pump. Alexandria Engineering Journal, 58(1), 39–48. https://doi.org/10.1016/j.aej.2019.02.004

Aldio, M. F., Waskito, W., Purwantono, P., & Lapisa, R. (2023). Optimization of impeller blade number in centrifugal pump for crude oil using Solidworks Flow Simulation. Journal of Engineering Researcher and Lecturer, 2(3), 80–93. https://doi.org/10.58712/jerel.v2i3.116

Kosseva, M. R. (2017). Chemical Engineering Aspects of Fruit Wine Production. In Science and Technology of Fruit Wine Production (pp. 253–293). Elsevier. https://doi.org/10.1016/B978-0-12-800850-8.00006-5

Li, J., Tang, L., & Zhang, Y. (2020). The influence of blade angle on the performance of plastic centrifugal pump. Advances in Materials Science and Engineering, 2020. https://doi.org/10.1155/2020/7205717

Nadaraja, D., Taib, I., Darlis, N., Kadir, R., Osman, K., & Khudzari, Z. (2023). Analysis of Flow Characteristics for Different Blade Outlet Angle in LVAD. CFD Letters, 15(11), 79–91. https://doi.org/10.37934/cfdl.15.11.7991

Peng, G., Chen, Q., Zhou, L., Pan, B., & Zhu, Y. (2020). Effect of Blade Outlet Angle on the Flow Field and Preventing Overload in a Centrifugal Pump. Micromachines, 11(9), 811. https://doi.org/10.3390/mi11090811

Sakran, H. K., Abdul Aziz, M. S., Abdullah, M. Z., & Khor, C. Y. (2022). Effects of Blade Number on the Centrifugal Pump Performance: A Review. Arabian Journal for Science and Engineering, 47(7), 7945–7961. https://doi.org/10.1007/s13369-021-06545-z

Salmat, S., Yanti Sari, D., Fernanda, Y., & Prasetya, F. (2023). SolidWorks Flow Simulation: Selecting the optimal mesh for conducting CFD analysis on a centrifugal fan. Journal of Engineering Researcher and Lecturer, 2(3), 94–103. https://doi.org/10.58712/jerel.v2i3.104

Shi, Y., Sheng, B., Zhu, J., Chen, G., Zhang, T., & Luo, R. (2023). A Human-Centric Design Method for Industrial Centrifugal Pump Based on Digital Twin. Processes, 12(1), 42. https://doi.org/10.3390/pr12010042

Si, Q., Bois, G., Jiang, Q., He, W., Ali, A., & Yuan, S. (2018). Investigation on the Handling Ability of Centrifugal Pumps under Air–Water Two-Phase Inflow: Model and Experimental Validation. Energies, 11(11), 3048. https://doi.org/10.3390/en11113048

Subroto, & Effendy, M. (2019). Optimization of centrifugal pump performance with various blade number. 020016. https://doi.org/10.1063/1.5112400

Susilo, S. H., & Setiawan, A. (2021). Analysis of the number and angle of the impeller blade to the performance of centrifugal pump. EUREKA: Physics and Engineering, 2021(5), 62–68. https://doi.org/10.21303/2461-4262.2021.002001

Wang, Y. Y., Zhao, W. G., Han, X. D., Fan, P. J., Liu, Z. L., & Hu, J. Q. (2023). Effects of the Centrifugal Pump Outlet Blade Angle on Its Internal Flow Field Characteristics under Cavitation Condition. Journal of Applied Fluid Mechanics, 16(2), 389–399. https://doi.org/10.47176/jafm.16.02.1241

Zhou, W., Zhao, Z., Lee, T. S., & Winoto, S. H. (2003). Investigation of Flow Through Centrifugal Pump Impellers Using Computational Fluid Dynamics. International Journal of Rotating Machinery, 9(1), 49–61. https://doi.org/10.1155/S1023621X0300006X