Journal of the Korean Society of Marine Environment & Safety (해양환경안전학회지)

The Korean Society of Marine Environment and safety (해양환경안전학회)
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A Study on the Performance Estimation and Shape Design of a Counter-Rotating Tidal Current Turbine

상반전 조류발전 터빈의 형상설계 및 성능예측에 관한 연구

  • Kim, Mun-Oh (Graduate School, Division of Marine System Engineering, Korea Maritime and Ocean University) ;
  • Kim, You-Taek (Division of Marine System Engineering, Korea Maritime and Ocean University) ;
  • Lee, Young-Ho (Division of Mechanical and Energy Systems Engineering, Korea Maritime and Ocean University)
  • 김문오 (한국해양대학교 대학원 기관시스템공학과) ;
  • 김유택 (한국해양대학교 기관시스템공학부) ;
  • 이영호 (한국해양대학교 기계에너지시스템공학부)
  • Received : 2014.07.08
  • Accepted : 2014.10.28
  • Published : 2014.10.31
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Abstract

This study looks at the design of a 100 kW blade geometry for a horizontal marine current turbine using the Blade Element Momentum Theory (BEMT) and by using (CFD), the power output, performance and characteristics of the the fluid flow over the blade is estimated. Three basic airfoils; FFA-W3-301, DU-93-W210 and NACA-63418, are used along the blade span and The distribution of the chord length and twist angles along the blade are obtained from the hydrodynamic optimization procedure. The power coefficient curve shows maximum peak at the rated tip speed ratio of 5.17, and the maximum power reaches about 101.82 kW at the power coefficient of 0.495.

본 연구에서는 BEMT(Blade Element Momentum Theory)에 의해 우선 정격 출력 100 kW인 수평축 조류 발전용 단일 터빈에대한 기본 형상 설계를 진행하고, CFD 해석을 통해 블레이드 주변 유동특성 파악 및 출력 성능 예측을 하였다. 기본적인 에어포일은 FFA-W3-301, DU-93-W210, NACA-63418을 사용하였다. 이를 바탕으로 상반회전 터빈의 특성을 고찰한 결과, 설계 주속비 5.17에서 최대 출력계수는 0.495이며, 터빈의 출력은 101.82 kW를 얻었다.

Keywords

References

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