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Numerical and experimental research on multi-stage pump as turbine system

机译：多级泵作为涡轮系统的数值与实验研究

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摘要

Recently, researches on pump as turbine (PAT) have been one of the hot issues in fluid machineries. Of these hydraulic turbines, multi-stage PATs are widely used in industrial fields. However, most attentions have been paid on performance of the single-stage PATs and the turbines themselves. In this paper, a potential multi-stage PAT system with load pump was investigated numerically and experimentally. The match relations between PAT and load pump were explored by theory, and an analytical method to predict performance of PAT system was proposed in addition. Computational fluid dynamics method (CFD) was adopted to study the performance characteristics of PAT under a constant rotation or certain head. The operational rules of multi-stage PAT system were analyzed in both constant and variable speed that confirmed the prediction of system performance. The results could give guidance to choose a proper load pump and promote efficiency of PAT system.
机译：近来，对作为涡轮机的泵（PAT）的研究已经成为流体机械中的热点问题之一。在这些水力涡轮机中，多级PAT被广泛用于工业领域。但是，人们对单级PAT和涡轮机本身的性能给予了最大的关注。本文通过数值和实验研究了一种潜在的带负载泵的多级PAT系统。从理论上探讨了PAT与负载泵的匹配关系，并提出了一种预测PAT系统性能的分析方法。采用计算流体动力学方法（CFD）研究恒转速或一定扬程下PAT的性能特征。分析了多阶段PAT系统的恒定和可变速度运行规则，这证实了对系统性能的预测。研究结果可为选择合适的负荷泵和提高PAT系统的效率提供指导。

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  • 来源
    《International journal of green energy》 |2017年第15期|996-1004|共9页
  • 作者

    Su Xianghui; Huang Si; Li Yi; Zhu Zuchao; Li Zhigang;

  • 作者单位

    Zhejiang Sci Tech Univ, Key Lab Fluid Transmiss Technol Zhejiang Prov, Room 241,Bldg 15, Hangzhou, Zhejiang, Peoples R China;

    South China Univ Technol, Sch Mech & Automot Engn, Guangzhou, Guangdong, Peoples R China;

    Zhejiang Sci Tech Univ, Key Lab Fluid Transmiss Technol Zhejiang Prov, Room 241,Bldg 15, Hangzhou, Zhejiang, Peoples R China;

    Zhejiang Sci Tech Univ, Key Lab Fluid Transmiss Technol Zhejiang Prov, Room 241,Bldg 15, Hangzhou, Zhejiang, Peoples R China;

    Zhejiang Sci Tech Univ, Key Lab Fluid Transmiss Technol Zhejiang Prov, Room 241,Bldg 15, Hangzhou, Zhejiang, Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Multi-PAT system; numerical simulation; pump as turbine; system efficiency;

    机译：多PAT系统;数值模拟;水轮机;系统效率;

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