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Study of silt erosion mechanism in Pelton turbine buckets

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  • Padhy, M.K.
  • Saini, R.P.

Abstract

In the present study, an experiment was carried out to investigate the mechanism of erosion of a small scale Pelton turbine, under actual flow conditions. Samples of silt were collected from the head work of one of the most silt affected hydro power station in India. Silt parameters (silt particle size and silt concentration) were considered to investigate the mechanism of silt erosion on Pelton turbine buckets for different silt sizes. In the first part of the experimentation, hot spots (spots which are more prone to erosion) were identified under a high silt concentration. Second part of the experimentation was carried out to study the erosion mechanism for small specimens of metal which were fixed at the marked hot spots.

Suggested Citation

  • Padhy, M.K. & Saini, R.P., 2012. "Study of silt erosion mechanism in Pelton turbine buckets," Energy, Elsevier, vol. 39(1), pages 286-293.
    • Handle: RePEc:eee:energy:v:39:y:2012:i:1:p:286-293
    DOI: 10.1016/j.energy.2012.01.015
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    1. Padhy, Mamata Kumari & Saini, R.P., 2008. "A review on silt erosion in hydro turbines," Renewable and Sustainable Energy Reviews, Elsevier, vol. 12(7), pages 1974-1987, September.
    2. Padhy, M.K. & Saini, R.P., 2011. "Study of silt erosion on performance of a Pelton turbine," Energy, Elsevier, vol. 36(1), pages 141-147.
    3. Padhy, M.K. & Saini, R.P., 2009. "Effect of size and concentration of silt particles on erosion of Pelton turbine buckets," Energy, Elsevier, vol. 34(10), pages 1477-1483.
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    2. 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.
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    5. Xiao, Yexiang & Guo, Bao & Rai, Anant Kumar & Liu, Jie & Liang, Quanwei & Zhang, Jin, 2022. "Analysis of hydro-abrasive erosion in Pelton buckets using a Eulerian-Lagrangian approach," Renewable Energy, Elsevier, vol. 197(C), pages 472-485.
    6. Ameur, Houari & Bouzit, Mohamed, 2013. "Power consumption for stirring shear thinning fluids by two-blade impeller," Energy, Elsevier, vol. 50(C), pages 326-332.
    7. Messa, Gianandrea Vittorio & Mandelli, Simone & Malavasi, Stefano, 2019. "Hydro-abrasive erosion in Pelton turbine injectors: A numerical study," Renewable Energy, Elsevier, vol. 130(C), pages 474-488.
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    9. Guo, Bao & Xiao, Yexiang & Rai, Anant Kumar & Liang, Quanwei & Liu, Jie, 2021. "Analysis of the air-water-sediment flow behavior in Pelton buckets using a Eulerian-Lagrangian approach," Energy, Elsevier, vol. 218(C).
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    12. Han, L. & Zhang, G.F. & Wang, Y. & Wei, X.Z., 2021. "Investigation of erosion influence in distribution system and nozzle structure of pelton turbine," Renewable Energy, Elsevier, vol. 178(C), pages 1119-1128.
    13. Kramer, Matthias & Terheiden, Kristina & Wieprecht, Silke, 2015. "Optimized design of impulse turbines in the micro-hydro sector concerning air detrainment processes," Energy, Elsevier, vol. 93(P2), pages 2604-2613.
    14. Cai, Liu-xi & Wang, Shun-sen & Mao, Jing-ru & Di, Juan & Feng, Zhen-ping, 2015. "The influence of nozzle chamber structure and partial-arc admission on the erosion characteristics of solid particles in the control stage of a supercritical steam turbine," Energy, Elsevier, vol. 82(C), pages 341-352.
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