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Study on pressure pulsation suppression of large volute pump for energy storage based on transient calculation and collaborative optimization

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  • Han, Zhenhua
  • Wang, Wenjie
  • Pei, Ji
  • Gan, Xingcheng
  • Chen, Jia

Abstract

Large volute pumps, characterized by high power and stringent stability requirements, have been extensively employed in large-scale energy storage projects such as pumped hydro storage. With the development of renewable energy, large-scale energy storage technologies face new challenges, leading to increasingly demanding performance criteria for these pumps. This study first analyzes the pressure pulsation intensity within the primary flow channels of large volute pump using the Hilbert-Huang Transform. The results reveal that the pressure pulsation intensity initially increases and subsequently decreases along the flow direction, with the maximum intensity concentrated in the bladeless space between the impeller and guide vanes. Subsequently, parametric design was applied to the impeller blade outlet and guide vane inlet, followed by collaborative optimization of these components via a surrogate model approach. After optimization, the hydraulic efficiency increased by 1.3 %, while the peak-to-peak pressure pulsation amplitude decreased by 7.4 %, achieving significant enhancement in flow stability without compromising hydraulic performance.

Suggested Citation

  • Han, Zhenhua & Wang, Wenjie & Pei, Ji & Gan, Xingcheng & Chen, Jia, 2025. "Study on pressure pulsation suppression of large volute pump for energy storage based on transient calculation and collaborative optimization," Energy, Elsevier, vol. 330(C).
    • Handle: RePEc:eee:energy:v:330:y:2025:i:c:s0360544225025538
    DOI: 10.1016/j.energy.2025.136911
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