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Effect of concentration and size of sediments on hydro-abrasive erosion of Pelton turbine

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  • Rai, Anant Kumar
  • Kumar, Arun
  • Staubli, Thomas

Abstract

Hydro-abrasive erosion caused by suspended sediments is a severe issue leading to frequent generation losses and failure of hydropower components especially in geologically young mountains like the Himalayas. To study the erosion behaviour of different materials under the same erosive and hydraulic conditions, experiments were performed simultaneously with different range of velocity, duration of exposure, sediment size, and concentration on a 1:8 down scaled Pelton buckets from an Indian hydropower plant (HPP) located in Himalayas. This work extends the research of Padhy and Saini (2009) for application in Pelton turbines fabricated from 6 materials such as 3 kinds of steel, 2 kinds of coatings and bronze for head up to 200 m. The values of sediment concentration for the tests were 500, 1500 and 3000 ppm, values mostly found in the HPPs. The developed erosion models were used to predict the erosion of the Pelton buckets from the study plant and are useful for proper planning of preventive measures and operation of the HPPs.

Suggested Citation

  • Rai, Anant Kumar & Kumar, Arun & Staubli, Thomas, 2020. "Effect of concentration and size of sediments on hydro-abrasive erosion of Pelton turbine," Renewable Energy, Elsevier, vol. 145(C), pages 893-902.
    • Handle: RePEc:eee:renene:v:145:y:2020:i:c:p:893-902
    DOI: 10.1016/j.renene.2019.06.012
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    Cited by:

    1. Ge, Xinfeng & Sun, Jie & Zhou, Ye & Cai, Jianguo & Zhang, Hui & Zhang, Lei & Ding, Mingquan & Deng, Chaozhong & Binama, Maxime & Zheng, Yuan, 2021. "Experimental and Numerical studies on Opening and Velocity Influence on Sediment Erosion of Pelton Turbine Buckets," Renewable Energy, Elsevier, vol. 173(C), pages 1040-1056.
    2. Babu, Abhishek & Perumal, G. & Arora, H.S. & Grewal, H.S., 2021. "Enhanced slurry and cavitation erosion resistance of deep cryogenically treated thermal spray coatings for hydroturbine applications," Renewable Energy, Elsevier, vol. 180(C), pages 1044-1055.
    3. George Aggidis & Audrius Židonis & Luke Burtenshaw & Marc Dubois & Stephen Orritt & Dominic Pickston & George Prigov & Luke Wilmot, 2023. "Development of a Novel High Head Impulse Hydro Turbine," Sustainability, MDPI, vol. 16(1), pages 1-17, December.
    4. Boyi Xiao & Yun Zeng & Wenqing Hu & Yuesong Cheng, 2024. "Feature Extraction of Flow Sediment Content of Hydropower Unit Based on Voiceprint Signal," Energies, MDPI, vol. 17(5), pages 1-15, February.
    5. Khan, Rehan & Ullah, Sati & Qahtani, Faez & Pao, William & Talha, Tariq, 2024. "Experimental and numerical investigation of hydro-abrasive erosion in the Pelton turbine buckets for multiphase flow," Renewable Energy, Elsevier, vol. 222(C).
    6. Hong, Sheng & Wu, Yuping & Wu, Jianhua & Zhang, Yuquan & Zheng, Yuan & Li, Jiahui & Lin, Jinran, 2021. "Microstructure and cavitation erosion behavior of HVOF sprayed ceramic-metal composite coatings for application in hydro-turbines," Renewable Energy, Elsevier, vol. 164(C), pages 1089-1099.
    7. Han, L. & Wang, Y. & Zhang, G.F. & Wei, X.Z., 2021. "The particle induced energy loss mechanism of Pelton turbine," Renewable Energy, Elsevier, vol. 173(C), pages 237-248.
    8. Leguizamón, Sebastián & Alimirzazadeh, Siamak & Jahanbakhsh, Ebrahim & Avellan, François, 2020. "Multiscale simulation of erosive wear in a prototype-scale Pelton runner," Renewable Energy, Elsevier, vol. 151(C), pages 204-215.
    9. Rai, Anant Kumar & Kumar, Arun & Staubli, Thomas & Yexiang, Xiao, 2020. "Interpretation and application of the hydro-abrasive erosion model from IEC 62364 (2013) for Pelton turbines," Renewable Energy, Elsevier, vol. 160(C), pages 396-408.

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