Optimization Design of an Ultra-Low Specific-Speed Centrifugal Pump Using Entropy Production Minimization and Taguchi Method

Cong Wang; Yongxue Zhang; Hucan Hou; Zhiyi Yuan; Ming Liu

doi:10.5293/IJFMS.2020.13.1.055

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자료유형: 학술저널

저자정보: Cong Wang (China University of Petroleum) Yongxue Zhang (China University of Petroleum) Hucan Hou (Chinese Academy of Sciences) Zhiyi Yuan (China University of Petroleum) Ming Liu (CNOOC Petrochemical Engineering)

저널정보: 한국유체기계학회 International Journal of Fluid Machinery and Systems International Journal of Fluid Machinery and Systems Vol.13 No.1

발행연도: 2020.3

수록면: 55 - 67 (13page)

DOI: 10.5293/IJFMS.2020.13.1.055

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To improve the energy conversion efficiency and cavitation performance of the ultra-low specific-speed centrifugal pump (ULSSCP), the impeller-volute interaction has been studied. Blade outlet setting angle (β₂), wrap angle (φ), volute inlet width (b₃) and throat area (St) were addressed as the design parameters. The entropy production at 0.5 Q0 and NPSHc (critical net positive suction head) at 1.5 Q0 were selected as the target to characterize the energy loss and cavitation performance. The L9 (3⁴) orthogonal matrix was established via Taguchi method. Results show that the contribution ratio of φ on S/NS is the most vital, followed by b₃ and St, while the influence of β₂ is relatively small, and the design parameter combination with β₂=19°, φ=220°, b₃=12mm and St=190㎟ is the best choice for the lowest entropy production at 0.5Q0 and NPSHc. At last, the optimization design reduces the loss greatly before and after cavitation by alleviation of vortex generation and backflow intensity.

#Ultra-low specific-speed centrifugal pump #impeller-volute interaction #optimization via Taguchi method #entropy production diagnostic model

참고문헌 (26)

참고문헌 신청

Zhu, B. / 2012 / Cavitating suppression of low specific speed centrifugal pump with gap drainage blades / Journal of Hydrodynamics Ser B 24(5):729~736

Derakhshan, S. / 2013 / Numerical shape optimization of a centrifugal pump impeller using artificial bee colony algorithm / Computers & Fluids 81(9):145~151

김준형 / 2015 / Design techniques to improve the performance of a centrifugal pump using CFD / Journal of Mechanical Science and Technology 29(1):215~225

Anup, K. C. / 2014 / Transient numerical analysis of rotor–stator interaction in a Francis turbine / Renewable Energy 65(8):227~235

Batailly, A. / 2016 / Experimental and numerical simulation of a rotor/stator interaction event localized on a single blade within an industrial high-pressure compressor / Journal of Sound & Vibration 375:308~331

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