IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v9y2016i3p199-d65766.html
   My bibliography  Save this article

Measuring the Dynamic Characteristics of a Low Specific Speed Pump—Turbine Model

Author

Listed:
  • Eve Cathrin Walseth

    (Waterpower Laboratory, NTNU, Alfred Getz vei 4, Trondheim 7491, Norway)

  • Torbjørn K. Nielsen

    (Waterpower Laboratory, NTNU, Alfred Getz vei 4, Trondheim 7491, Norway)

  • Bjørnar Svingen

    (Waterpower Laboratory, NTNU, Alfred Getz vei 4, Trondheim 7491, Norway
    Rainpower, S.P.Andersen vei 7, Trondheim 7031, Norway)

Abstract

This paper presents results from an experiment performed to obtain the dynamic characteristics of a reversible pump-turbine model. The characteristics were measured in an open loop system where the turbine initially was run on low rotational speed before the generator was disconnected allowing the turbine to go towards runaway. The measurements show that the turbine experience damped oscillations in pressure, speed and flow rate around runaway corresponding with presented stability criterion in published literature. Results from the experiment is reproduced by means of transient simulations. A one dimensional analytical turbine model for representation of the pump-turbine is used in the calculations. The simulations show that it is possible to reproduce the physics in the measurement by using a simple analytical model for the pump-turbine as long as the inertia of the water masses in the turbine are modeled correctly.

Suggested Citation

  • Eve Cathrin Walseth & Torbjørn K. Nielsen & Bjørnar Svingen, 2016. "Measuring the Dynamic Characteristics of a Low Specific Speed Pump—Turbine Model," Energies, MDPI, vol. 9(3), pages 1-12, March.
    • Handle: RePEc:gam:jeners:v:9:y:2016:i:3:p:199-:d:65766
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/9/3/199/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/9/3/199/
    Download Restriction: no
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Hu, Jinhong & Yang, Jiebin & Zeng, Wei & Zhao, Zhigao & Yang, Jiandong, 2021. "Hydraulic interaction of two parallel pump-turbines in constant-speed oscillation: Measurement, simulation, and sensitivity analysis," Renewable Energy, Elsevier, vol. 176(C), pages 269-279.
    2. Kan, Kan & Zheng, Yuan & Chen, Huixiang & Zhou, Daqing & Dai, Jing & Binama, Maxime & Yu, An, 2020. "Numerical simulation of transient flow in a shaft extension tubular pump unit during runaway process caused by power failure," Renewable Energy, Elsevier, vol. 154(C), pages 1153-1164.
    3. Mao, Xiuli & Pavesi, Giorgio & Chen, Diyi & Xu, Hengshan & Mao, Gaojun, 2019. "Flow induced noise characterization of pump turbine in continuous and intermittent load rejection processes," Renewable Energy, Elsevier, vol. 139(C), pages 1029-1039.
    4. Li, Deyou & Fu, Xiaolong & Zuo, Zhigang & Wang, Hongjie & Li, Zhenggui & Liu, Shuhong & Wei, Xianzhu, 2019. "Investigation methods for analysis of transient phenomena concerning design and operation of hydraulic-machine systems—A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 101(C), pages 26-46.
    5. Iliev, Igor & Trivedi, Chirag & Dahlhaug, Ole Gunnar, 2019. "Variable-speed operation of Francis turbines: A review of the perspectives and challenges," Renewable and Sustainable Energy Reviews, Elsevier, vol. 103(C), pages 109-121.
    6. Fu, Xiaolong & Li, Deyou & Wang, Hongjie & Zhang, Guanghui & Li, Zhenggui & Wei, Xianzhu, 2020. "Numerical simulation of the transient flow in a pump-turbine during load rejection process with special emphasis on hydraulic acoustic effect," Renewable Energy, Elsevier, vol. 155(C), pages 1127-1138.
    7. Fu, Xiaolong & Li, Deyou & Wang, Hongjie & Zhang, Guanghui & Li, Zhenggui & Wei, Xianzhu, 2018. "Influence of the clearance flow on the load rejection process in a pump-turbine," Renewable Energy, Elsevier, vol. 127(C), pages 310-321.
    8. Fu, Shifeng & Zheng, Yuan & Kan, Kan & Chen, Huixiang & Han, Xingxing & Liang, Xiaoling & Liu, Huiwen & Tian, Xiaoqing, 2020. "Numerical simulation and experimental study of transient characteristics in an axial flow pump during start-up," Renewable Energy, Elsevier, vol. 146(C), pages 1879-1887.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jeners:v:9:y:2016:i:3:p:199-:d:65766. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.