Journal of Advanced Marine Engineering and Technology

The Korean Society of Marine Engineering (한국마린엔지니어링학회)
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Runner Design and Internal Flow Characteristics Analysis for an Ns=200 Francis Hydro Turbine Model

  • Hwang, Yeong-Cheol (Shinhan Precision Ltd.) ;
  • Chen, Zhenmu (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) ;
  • Lee, Young-Ho (Flow Informatics Lab, Korea Maritime and Ocean University)
  • Received : 2016.07.06
  • Accepted : 2016.10.13
  • Published : 2016.10.31
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Abstract

Francis hydro turbines have been most widely used throughout the world because of their wide range of head and flow rate applications. In most applications, they are used for high heads and flow rates. Currently, Korea is developing technology for Francis hydro turbine design and manufacture. In order to understand the internal details of Francis hydro turbines further, a new Francis turbine model runner is designed and model internal flow characteristics are investigated. The specific speed of the Francis hydro turbine model runner is $Ns=200m-kW-min^{-1}$. The runner blade is designed successfully according to the port area and one-dimensional loss analysis. The best efficiency point of the Francis hydro turbine model achieves 90% at the design condition. CFD analysis yields a hill chart of the Francis hydro turbine model for use in predicting performance.

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References

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