Pelton turbine bucket flow analysis and visualization for evaluation of area-wise contribution

S. Bhattarai, P. Vichare, K. Dahal

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Abstract

The objective of this paper is to visualize, evaluate and analyse the flow in a Pelton turbine bucket. The numerical study of the buckets in rotating condition allows for detailed study and analysis of the jet-bucket interaction from the moment of impingement to the moment of exit. Unsteady numerical simulations, based on two phase homogenous model, was performed for wall pressure measurement and flow visualization. Realizable K-epsilon viscous model with near wall treatment was used for turbulence modelling. Similar studies have been conducted for the inner bucket surface and are limited to verifying the experimental and numerical results. This study extends the research to the chronologic performance of specific segments inside the bucket; on the reverse side of the bucket and the edges. It attempts to expose the most and the least
efficient parts of the bucket so that the designers can contemplate better designs to enhance the performance. The research suggests that the splitter area and the central base region of the bucket are the most productive whereas the portion at the root; and at the outer periphery is the least productive.
Original languageEnglish
Title of host publicationRenewable and Sustainable Energy Developments Beyond 2030
Subtitle of host publicationProceedings of the 11th International Conference on Sustainable Energy & Environmental Protection
EditorsAbdul Ghani Olabi
Place of PublicationPaisley
PublisherUniversity of the West of Scotland
Pages367-372
Number of pages6
Volume3
ISBN (Print)978-1-903978-62-7
Publication statusPublished - 8 May 2018
EventInternational Conference on Sustainable Energy and Environmental Protection: SEEP 2018 - University of the West of Scotland, Paisley, United Kingdom
Duration: 8 May 201811 May 2018
Conference number: 11
http://www.seep2018.uws.ac.uk/

Conference

ConferenceInternational Conference on Sustainable Energy and Environmental Protection
Abbreviated titleSEEP 2018
CountryUnited Kingdom
CityPaisley
Period8/05/1811/05/18
Internet address

Fingerprint

Turbines
Visualization
Flow visualization
Pressure measurement
Turbulence
Computer simulation

Keywords

  • Pelton turbine
  • Computational fluid dynamics
  • Flow analysis
  • Design analysis

Cite this

Bhattarai, S., Vichare, P., & Dahal, K. (2018). Pelton turbine bucket flow analysis and visualization for evaluation of area-wise contribution. In A. G. Olabi (Ed.), Renewable and Sustainable Energy Developments Beyond 2030: Proceedings of the 11th International Conference on Sustainable Energy & Environmental Protection (Vol. 3, pp. 367-372). Paisley: University of the West of Scotland.
Bhattarai, S. ; Vichare, P. ; Dahal, K. / Pelton turbine bucket flow analysis and visualization for evaluation of area-wise contribution. Renewable and Sustainable Energy Developments Beyond 2030: Proceedings of the 11th International Conference on Sustainable Energy & Environmental Protection . editor / Abdul Ghani Olabi. Vol. 3 Paisley : University of the West of Scotland, 2018. pp. 367-372
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Bhattarai, S, Vichare, P & Dahal, K 2018, Pelton turbine bucket flow analysis and visualization for evaluation of area-wise contribution. in AG Olabi (ed.), Renewable and Sustainable Energy Developments Beyond 2030: Proceedings of the 11th International Conference on Sustainable Energy & Environmental Protection . vol. 3, University of the West of Scotland, Paisley, pp. 367-372, International Conference on Sustainable Energy and Environmental Protection, Paisley, United Kingdom, 8/05/18.

Pelton turbine bucket flow analysis and visualization for evaluation of area-wise contribution. / Bhattarai, S.; Vichare, P.; Dahal, K.

Renewable and Sustainable Energy Developments Beyond 2030: Proceedings of the 11th International Conference on Sustainable Energy & Environmental Protection . ed. / Abdul Ghani Olabi. Vol. 3 Paisley : University of the West of Scotland, 2018. p. 367-372.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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T1 - Pelton turbine bucket flow analysis and visualization for evaluation of area-wise contribution

AU - Bhattarai, S.

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AU - Dahal, K.

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N2 - The objective of this paper is to visualize, evaluate and analyse the flow in a Pelton turbine bucket. The numerical study of the buckets in rotating condition allows for detailed study and analysis of the jet-bucket interaction from the moment of impingement to the moment of exit. Unsteady numerical simulations, based on two phase homogenous model, was performed for wall pressure measurement and flow visualization. Realizable K-epsilon viscous model with near wall treatment was used for turbulence modelling. Similar studies have been conducted for the inner bucket surface and are limited to verifying the experimental and numerical results. This study extends the research to the chronologic performance of specific segments inside the bucket; on the reverse side of the bucket and the edges. It attempts to expose the most and the leastefficient parts of the bucket so that the designers can contemplate better designs to enhance the performance. The research suggests that the splitter area and the central base region of the bucket are the most productive whereas the portion at the root; and at the outer periphery is the least productive.

AB - The objective of this paper is to visualize, evaluate and analyse the flow in a Pelton turbine bucket. The numerical study of the buckets in rotating condition allows for detailed study and analysis of the jet-bucket interaction from the moment of impingement to the moment of exit. Unsteady numerical simulations, based on two phase homogenous model, was performed for wall pressure measurement and flow visualization. Realizable K-epsilon viscous model with near wall treatment was used for turbulence modelling. Similar studies have been conducted for the inner bucket surface and are limited to verifying the experimental and numerical results. This study extends the research to the chronologic performance of specific segments inside the bucket; on the reverse side of the bucket and the edges. It attempts to expose the most and the leastefficient parts of the bucket so that the designers can contemplate better designs to enhance the performance. The research suggests that the splitter area and the central base region of the bucket are the most productive whereas the portion at the root; and at the outer periphery is the least productive.

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KW - Design analysis

M3 - Conference contribution

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BT - Renewable and Sustainable Energy Developments Beyond 2030

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Bhattarai S, Vichare P, Dahal K. Pelton turbine bucket flow analysis and visualization for evaluation of area-wise contribution. In Olabi AG, editor, Renewable and Sustainable Energy Developments Beyond 2030: Proceedings of the 11th International Conference on Sustainable Energy & Environmental Protection . Vol. 3. Paisley: University of the West of Scotland. 2018. p. 367-372