The KSFM Journal of Fluid Machinery (한국유체기계학회 논문집)

Korean Society for Fluid machinery (한국유체기계학회)
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Internal Flow Characteristics of a Francis Hydro Turbine Model by Internal Flow Passage Shapes

  • Chen, Zhenmu (Graduate School, Department of Mechanical Engineering, Mokpo National University) ;
  • Wei, Qingsheng (Graduate School, Department of Mechanical Engineering, Mokpo National University) ;
  • Singh, Patrick Mark (Graduate School, Department of Mechanical Engineering, Mokpo National University) ;
  • Choi, Young-Do (Department of Mechanical Engineering, Institute of New and Renewable Energy Technology Research, Mokpo National University)
  • Received : 2015.03.31
  • Accepted : 2015.08.18
  • Published : 2015.10.01
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Abstract

As a core component of a hydropower station, hydro turbines play a vital role in the integration of a power station. Research on the technology of hydro turbine is continuously increasing with the development of water electricity. On the basis of one-dimensional loss analysis, for three-dimension design, there are a lot of dimension of the internal flow passage shapes that are determined by experience. Therefore, the effect of the internal flow passage shapes on the performance and internal flow characteristics of a Francis hydro turbine model is investigated in this study. In this study, the small curvature of runner blade trailing edge shape is good for improving the efficiency of Francis turbine. The straight stay vane leading edge is good for suppressing the secondary flow. Moreover, suitable tongue passage shape and stay vane number improve the performance of the turbine considerably.

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References

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Cited by

  1. Runner Design and Internal Flow Characteristics Analysis for an Ns=200 Francis Hydro Turbine Model vol.40, pp.8, 2015, https://doi.org/10.5916/jkosme.2016.40.8.698