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Flow-Induced Transient Pressure Fluctuations During Start-up Process of Pumping Mode

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Flow-Induced Instabilities of Reversible Pump Turbines

Part of the book series: SpringerBriefs in Energy ((BRIEFSENERGY))

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Abstract

During the daily operation of PHESPS, the RPT will encounter the start-up transient process of pumping mode inevitably and frequently for the storage of surplus power in the grid and the synchronization of renewable energies, during which the flow-induced pressure fluctuation is an important factor to ensure the security and stability of the RPT and PHESPS. If the pressure fluctuation is excessive, it will result in the failure of start-up process and even have an impact on the lifespan of the RPT. In this chapter, the generation mechanisms and propagation characteristics of pressure fluctuations during this transient process will be investigated through analyzing the pressure fluctuation signals obtained at several typical monitoring points through the on-site experiment. The analysis results of this chapter can provide effective operational guidance for the other newly built PHESPSs to improve the stability and security of the RPTs. In addition, the presented transient pressure fluctuation signals can also be adopted for calibration and comparison of numerical calculation.

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Authors and Affiliations

  1. Key Laboratory of Power Station Energy Transfer Conversion and System (Ministry of Education), School of Energy, Power and Mechanical Engineering, North China Electric Power University, Beijing, China

    Xianghao Zheng

  2. Key Laboratory of Power Station Energy Transfer Conversion and System (Ministry of Education), School of Energy, Power and Mechanical Engineering, North China Electric Power University, Beijing, China

    Yuning Zhang

  3. Beijing Key Laboratory of Process Fluid Filtration and Separation, College of Mechanical and Transportation Engineering, China University of Petroleum-Beijing, Beijing, China

    Yuning Zhang

  4. China Institute of Water Resources and Hydropower Research, Beijing, China

    Jinwei Li

Authors
  1. Xianghao Zheng
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  2. Yuning Zhang
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  3. Yuning Zhang
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  4. Jinwei Li
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Corresponding author

Correspondence to Xianghao Zheng .

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Zheng, X., Zhang, Y., Zhang, Y., Li, J. (2022). Flow-Induced Transient Pressure Fluctuations During Start-up Process of Pumping Mode. In: Flow-Induced Instabilities of Reversible Pump Turbines. SpringerBriefs in Energy. Springer, Cham. https://doi.org/10.1007/978-3-031-18057-6_4

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  • DOI: https://doi.org/10.1007/978-3-031-18057-6_4

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-031-18056-9

  • Online ISBN: 978-3-031-18057-6

  • eBook Packages: EnergyEnergy (R0)

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