The KSFM Journal of Fluid Machinery (한국유체기계학회 논문집)

Korean Society for Fluid machinery (한국유체기계학회)
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CFD Analysis on the Performance and Internal Flow of a Micro Cross-Flow Hydro Turbine in the Range of Very Low Specific Speed

극저비속도 영역 마이크로 횡류수차의 성능 및 내부유동 수치해석적 연구

  • Received : 2012.04.11
  • Accepted : 2012.08.31
  • Published : 2012.12.01
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Abstract

Renewable energy has been interested because of fluctuation of oil price, depletion of fossil fuel resources and environmental impact. Amongst renewable energy resources, hydropower is most reliable and cost effective way. In this study, to develop a new type of micro hydro turbine which can be operated in the range of very low specific speed, a cross-flow hydro turbine with simple structure is proposed. The turbine is designed to be used at the very low specific speed range of hydropower resources, such as very high-head and considerably small-flow rate water resources. CFD analysis on the performance and internal flow characteristics of the turbine is conducted to obtain a practical data for the new design method of the turbine. Results show that optimized arrangement of guide vane angle and inner guide angle can give contribution to the turbine performance improvement.

Keywords

References

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