The KSFM Journal of Fluid Machinery (한국유체기계학회 논문집)

Korean Society for Fluid machinery (한국유체기계학회)
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A Feasibility Study on the Flow Passage Shape for an Inline Francis Hydro Turbine

  • Chen, Chengcheng (Graduate School, Department of Mechanical Engineering, Mokpo National University) ;
  • Singh, Patrick Mark (Graduate School, Department of Mechanical Engineering, Mokpo National University) ;
  • Inagaki, Morihito (Department of Hydro Generation Engineering, Tokyo Electric Power Company) ;
  • Choi, Young-Do (Department of Mechanical Engineering, Institute of New and Renewable Energy Technology Research, Mokpo National University)
  • Received : 2014.03.14
  • Accepted : 2015.03.06
  • Published : 2015.04.01
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Abstract

The aim of this study is to investigate the feasibility of a new type of casing for the inline Francis hydro turbine. Comparing with the traditional turbine with spiral casing, this turbine is unique for its flow passage shape at the first stage of flow to the turbine, very similar to a pipe, called inline casing. Before the commercialization of this new type of casing, a global investigation of the inline casing must be conducted. Preserving the structural characteristics of simple, compact-size and convenient for manufacture, different shapes of the belt passage, vertical corner and stay vanes are applied to investigate the influence of flow passage shape on the turbine performance. Stable and relatively high efficiency is achieved regardless of flow passage shape difference proving the feasibility of the inline casing used in a hydro turbine.

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References

  1. Layton, E. T., 1992, "From Rule of Thumb to Scientific Engineering: James B. Francis and the Invention of the Francis Turbine", NLA Monograph Series
  2. Wei, Q. S. and Choi, Y. D., 2013, "The Influence of Guide Vane Opening on the Internal Flow of a Francis Turbine," Journal of Korean Society of Marine Engineering, Vol. 37, No. 3, pp. 274-281. https://doi.org/10.5916/jkosme.2013.37.3.274
  3. Wei, Q. S., Zhu, B. S. and Choi, Y. D., 2012, "Internal Flow Characteristics in the Draft Tube of a Francis Turbine," Journal of Korean Society of Marine Engineering, Vol. 36, No. 5, pp. 618-626. https://doi.org/10.5916/jkosme.2012.36.5.618
  4. Jingchun, W., Katsunasa, S., Kiyohito, T., Kazuo, N. and Joushirou, S., 2007, "CFD-Based Design Optimization for Hydro Turbines," Journal of Fluids Engineering, Vol. 129, pp. 159-168. https://doi.org/10.1115/1.2409363
  5. Alnaga, A. and Kueny, J. L., 2008, "Optimal Design of Hydraulic Turbine Distributor," WSEAS TRANSACTIONS on FLUID MECHANICS , Issue. 2, Vol. 3, pp. 175-185.
  6. Shukla, M. K. and Jain, R., 2011, "CFD Analysis of 3-D Flow for Francis Turbine," Int. Jour. Mechanical Engineering, Vol, 2, pp. 93-100.
  7. Navthar, R. R., TejasPrasad, J., Saurabh, D., Nitish, D. and Anand, A., 2012, "CFD Analysis of Francis Turbine," International Journal of Engineering Science and Technology, pp. 3194-3199.
  8. ANSYS Inc, 2012, "ANSYS CFX Documentation" Ver. 12, http://www.ansys.com

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