IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v16y2023i7p3223-d1114974.html
   My bibliography  Save this article

Experimental Investigation on Velocity Fluctuation in a Vaned Diffuser Centrifugal Pump Measured by Laser Doppler Anemometry

Author

Listed:
  • Ning Zhang

    (School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China)

  • Delin Li

    (School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China)

  • Junxian Jiang

    (Shanghai Marine Equipment Research Institute (SMERI), Shanghai 200031, China)

  • Bo Gao

    (School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China)

  • Dan Ni

    (School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China)

  • Anthony Akurugo Alubokin

    (School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China)

  • Wenbin Zhang

    (Shanghai Marine Equipment Research Institute (SMERI), Shanghai 200031, China)

Abstract

Turbulent flow, mainly originating from the rotor-stator interaction (RSI), is closely associated with the normal and safe operation of the centrifugal pump. In the current research, to clarify turbulent flow in the centrifugal pump with a vaned diffuser, the non-intrusive LDA (Laser Doppler Anemometry) system is applied to measure velocity pulsation signals at different regions when the pump operates at various flow rates. Time and frequency domain analysis methods are combined to investigate the velocity signals, and the velocity distribution around the volute tongue region is reconstructed from twenty measuring points. Results show that the velocity spectrum is characterized by the discrete components at the blade passing frequency and its higher harmonics, and it is caused by the RSI between the impeller and the diffuser. For the points in the volute spiral and diffusion sections, due to the significantly reduced RSI effect, the velocity spectrum shows an evident difference from comparison with the points between the impeller and diffuser, and the blade passing frequency is not always the dominant frequency. The comparison of velocity amplitudes and RMS * (root mean square of velocity) values at different points proves that the measuring position and flow rate affect velocity pulsations. As observed from velocity distribution reconstructed by LDA signals, high velocity regions are developed downstream of the diffuser channel for all the measured flow rates.

Suggested Citation

  • Ning Zhang & Delin Li & Junxian Jiang & Bo Gao & Dan Ni & Anthony Akurugo Alubokin & Wenbin Zhang, 2023. "Experimental Investigation on Velocity Fluctuation in a Vaned Diffuser Centrifugal Pump Measured by Laser Doppler Anemometry," Energies, MDPI, vol. 16(7), pages 1-17, April.
  • Handle: RePEc:gam:jeners:v:16:y:2023:i:7:p:3223-:d:1114974
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/16/7/3223/pdf
    Download Restriction: no

    File URL: https://www.mdpi.com/1996-1073/16/7/3223/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Ni, Dan & Zhang, Ning & Gao, Bo & Li, Zhong & Yang, Minguan, 2020. "Dynamic measurements on unsteady pressure pulsations and flow distributions in a nuclear reactor coolant pump," Energy, Elsevier, vol. 198(C).
    2. Zhang, Ning & Liu, Xiaokai & Gao, Bo & Xia, Bin, 2019. "DDES analysis of the unsteady wake flow and its evolution of a centrifugal pump," Renewable Energy, Elsevier, vol. 141(C), pages 570-582.
    3. Zhang, Ning & Jiang, Junxian & Gao, Bo & Liu, Xiaokai & Ni, Dan, 2020. "Numerical analysis of the vortical structure and its unsteady evolution of a centrifugal pump," Renewable Energy, Elsevier, vol. 155(C), pages 748-760.
    4. Arun Shankar, Vishnu Kalaiselvan & Umashankar, Subramaniam & Paramasivam, Shanmugam & Hanigovszki, Norbert, 2016. "A comprehensive review on energy efficiency enhancement initiatives in centrifugal pumping system," Applied Energy, Elsevier, vol. 181(C), pages 495-513.
    Full references (including those not matched with items on IDEAS)

    Citations

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


    Cited by:

    1. Zhenhua Zhou & Huacong Li & Jinbo Chen & Delin Li & Ning Zhang, 2023. "Numerical Simulation on Transient Pressure Pulsations and Complex Flow Structures of a Ultra-High-Speed Centrifugal Pump at Stalled Condition," Energies, MDPI, vol. 16(11), pages 1-17, June.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Chengshuo Wu & Jun Yang & Shuai Yang & Peng Wu & Bin Huang & Dazhuan Wu, 2023. "A Review of Fluid-Induced Excitations in Centrifugal Pumps," Mathematics, MDPI, vol. 11(4), pages 1-20, February.
    2. Jian-Cheng Cai & Hao-Jie Chen & Volodymyr Brazhenko & Yi-Hong Gu, 2021. "Study of the Hydrodynamic Unsteady Flow Inside a Centrifugal Fan and Its Downstream Pipe Using Detached Eddy Simulation," Sustainability, MDPI, vol. 13(9), pages 1-19, May.
    3. Zhang, Ning & Jiang, Junxian & Gao, Bo & Liu, Xiaokai & Ni, Dan, 2020. "Numerical analysis of the vortical structure and its unsteady evolution of a centrifugal pump," Renewable Energy, Elsevier, vol. 155(C), pages 748-760.
    4. Ning Zhang & Delin Li & Bo Gao & Dan Ni & Zhong Li, 2022. "Unsteady Pressure Pulsations in Pumps—A Review," Energies, MDPI, vol. 16(1), pages 1-30, December.
    5. Dan Ni & Feifan Wang & Bo Gao & Yang Zhang & Shiyuan Huang, 2022. "Experimental Investigation on the Effect of the Staggered Impeller on the Unsteady Pressure Pulsations Characteristic in a Pump," Energies, MDPI, vol. 15(23), pages 1-15, November.
    6. Zhenhua Zhou & Huacong Li & Jinbo Chen & Delin Li & Ning Zhang, 2023. "Numerical Simulation on Transient Pressure Pulsations and Complex Flow Structures of a Ultra-High-Speed Centrifugal Pump at Stalled Condition," Energies, MDPI, vol. 16(11), pages 1-17, June.
    7. Zhang, Ning & Jiang, Junxian & Gao, Bo & Liu, Xiaokai, 2020. "DDES analysis of unsteady flow evolution and pressure pulsation at off-design condition of a centrifugal pump," Renewable Energy, Elsevier, vol. 153(C), pages 193-204.
    8. Fernández Oro, J.M. & Barrio Perotti, R. & Galdo Vega, M. & González, J., 2023. "Effect of the radial gap size on the deterministic flow in a centrifugal pump due to impeller-tongue interactions," Energy, Elsevier, vol. 278(PA).
    9. Johnson, Hilary A. & Simon, Kevin P. & Slocum, Alexander H., 2021. "Data analytics and pump control in a wastewater treatment plant," Applied Energy, Elsevier, vol. 299(C).
    10. Diaz, Cesar & Ruiz, Fredy & Patino, Diego, 2017. "Modeling and control of water booster pressure systems as flexible loads for demand response," Applied Energy, Elsevier, vol. 204(C), pages 106-116.
    11. Xu, Wei & Chen, Genglin & Shi, Huijin & Zhang, Pengcheng & Chen, Xuemei, 2023. "Research on operational characteristics of coal power centrifugal fans at off-design working conditions based on flap-angle adjustment," Energy, Elsevier, vol. 284(C).
    12. Leilei Du & Fankun Zheng & Bo Gao & Mona Gad & Delin Li & Ning Zhang, 2024. "Numerical Investigation of Rotor and Stator Matching Mode on the Complex Flow Field and Pressure Pulsation of a Vaned Centrifugal Pump," Energies, MDPI, vol. 17(10), pages 1-19, May.
    13. Filipe, Jorge & Bessa, Ricardo J. & Reis, Marisa & Alves, Rita & Póvoa, Pedro, 2019. "Data-driven predictive energy optimization in a wastewater pumping station," Applied Energy, Elsevier, vol. 252(C), pages 1-1.
    14. José Ignacio Sarasúa & Guillermo Martínez-Lucas & Carlos A. Platero & José Ángel Sánchez-Fernández, 2018. "Dual Frequency Regulation in Pumping Mode in a Wind–Hydro Isolated System," Energies, MDPI, vol. 11(11), pages 1-17, October.
    15. Zhu, Hongtao & Gao, Xueping & Liu, Yinzhu & Liu, Shuai, 2023. "Numerical and experimental assessment of the water discharge segment in a pumped-storage power station," Energy, Elsevier, vol. 265(C).
    16. Gan, Xingcheng & Pavesi, Giorgio & Pei, Ji & Yuan, Shouqi & Wang, Wenjie & Yin, Tingyun, 2022. "Parametric investigation and energy efficiency optimization of the curved inlet pipe with induced vane of an inline pump," Energy, Elsevier, vol. 240(C).
    17. Michał Napierała, 2022. "A Study on Improving Economy Efficiency of Pumping Stations Based on Tariff Changes," Energies, MDPI, vol. 15(3), pages 1-17, January.
    18. Cao, Puyu & Zhu, Rui & Yin, Gang, 2021. "Spike-type disturbances due to inlet distortion in a centrifugal pump," Renewable Energy, Elsevier, vol. 165(P1), pages 288-300.
    19. Safarbek Oshurbekov & Vadim Kazakbaev & Vladimir Prakht & Vladimir Dmitrievskii, 2021. "Improving Reliability and Energy Efficiency of Three Parallel Pumps by Selecting Trade-Off Operating Points," Mathematics, MDPI, vol. 9(11), pages 1-19, June.
    20. Vadim Kazakbaev & Vladimir Prakht & Vladimir Dmitrievskii & Safarbek Oshurbekov & Dmitry Golovanov, 2020. "Life Cycle Energy Cost Assessment for Pump Units with Various Types of Line-Start Operating Motors Including Cable Losses," Energies, MDPI, vol. 13(14), pages 1-15, July.

    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:16:y:2023:i:7:p:3223-:d:1114974. 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.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with 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.