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Direct Shape Optimization and Parametric Analysis of a Vertical Inline Pump via Multi-Objective Particle Swarm Optimization

National Research Center of Pumps, Jiangsu University, Zhenjiang 212013, China
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Energies 2020, 13(2), 425; https://doi.org/10.3390/en13020425
Received: 20 November 2019 / Revised: 9 January 2020 / Accepted: 11 January 2020 / Published: 15 January 2020
The vertical inline pump is a single-suction single-stage centrifugal pump with a curved inlet pipe before the impeller, which usually causes a significant increase of hydraulic losses in the inline pump. Considering the matching relationship between the inlet pipe and impeller, a multi-objective direct optimization based on the MOPSO of the inlet pipe and impeller was carried out to broaden the efficient operating area of the vertical inline pump. Bezier curves were adopted to control the profiles of the inlet pipe and impeller and 39 coordinates of the control points and the blade number were selected as the optimization variables. The efficiencies of the inline pump at the part-load and nominal conditions were chosen as the objective functions, which were obtained by the automatic simulation program. A dramatic improvement in pump performance was found after optimization. In the set of Pareto solutions, the maximum increases of efficiency at part-load and nominal conditions were 8.06% and 7.33% respectively. It also reported that the inlet pipe with longer horizontal length and lower bend curvature could reduce the hydraulic losses of the inlet pipe and increase the pump performance. View Full-Text
Keywords: multi-objective optimization; shape optimization; MOPSO; vertical inline pump; hydraulic performance multi-objective optimization; shape optimization; MOPSO; vertical inline pump; hydraulic performance
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MDPI and ACS Style

Gan, X.; Wang, W.; Pei, J.; Yuan, S.; Tang, Y.; Osman, M.K. Direct Shape Optimization and Parametric Analysis of a Vertical Inline Pump via Multi-Objective Particle Swarm Optimization. Energies 2020, 13, 425.

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