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Performance enhancement of a pump impeller using optimal design method

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Abstract

This paper presents the performance evaluation of a regenerative pump to increase its efficiency using optimal design method. Two design parameters which define the shape of the pump impeller, are introduced and analyzed. Pump performance is evaluated by numerical simulation and design of experiments(DOE). To analyze three-dimensional flow field in the pump, general analysis code, CFX, is used in the present work. Shear stress turbulence model is employed to estimate the eddy viscosity. Experimental apparatus with an open-loop facility is set up for measuring the pump performance. Pump performance, efficiency and pressure, obtained from numerical simulation are validated by comparison with the results of experiments. Throughout the shape optimization of the pump impeller at the operating flow condition, the pump efficiency is successfully increased by 3 percent compared to the reference pump. It is noted that the pressure increase of the optimum pump is mainly caused by higher momentum force generated inside blade passage due to the optimal blade shape. Comparisons of pump internal flow on the reference and optimum pump are also investigated and discussed in detail.

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Acknowledgement

This study was supported by a grant (16AUDPB083704-03) from Architecture & Urban Development Research Program funded by Ministry of Land, Infrastructure and Transport of Korean government.

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Authors and Affiliations

  1. Dep. of Mechanical Engineering, Hanyang University, Ansan-si, Gyeonggi-do, 15588, Republic of Korea

    Seok-Yun Jeon & Joon-Yong Yoon

  2. Korea Institute of Civil Engineering and Building Technology, Goyang-si, Gyeonggi-do, 10223, Republic of Korea

    Seok-Yun Jeon, Chul-Kyu Kim, Sang-Moon Lee & Choon-Man Jang

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  1. Seok-Yun Jeon
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  2. Chul-Kyu Kim
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  3. Sang-Moon Lee
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  4. Joon-Yong Yoon
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  5. Choon-Man Jang
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Jeon, SY., Kim, CK., Lee, SM. et al. Performance enhancement of a pump impeller using optimal design method. J. Therm. Sci. 26, 119–124 (2017). https://doi.org/10.1007/s11630-017-0919-6

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  • DOI: https://doi.org/10.1007/s11630-017-0919-6

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