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항력식 조류발전 터빈의 최적 형상 설계 및 유동 수치해석을 통한 성능 평가

Design and Performance Evaluation of the Savonius Tidal Current Turbine

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초록

Due to global warming, the need to secure an alternative resource has become more important nationally. Having very strong current on the west coast with up to 10 m tidal range, there are many suitable site for the application of TCP (Tidal Current Power) in Korea. On the south west regions between many islands that create strong current in the narrow channels. The rotor is one of the essential components which can convert tidal current energy into rotational energy to generate electricity. The design optimization of rotor is very important to maximize the power production. The performance of rotor can be determined by various parameters including number of blades, shape, sectional size, diameters and etc. This paper introduces the multi-layer vertical axis tidal current power system which can be applied to offshore jetties and piers effectively. Various cases of VAT turbine were designed. Specifically, the number of blades and turbine shape are changed in several cases. Also, performance analysis was carried out by CFD.

Abstract

Due to global warming, the need to secure an alternative resource has become more important nationally. Having very strong current on the west coast with up to 10 m tidal range, there are many suitable site for the application of TCP (Tidal Current Power) in Korea. On the south west regions between many islands that create strong current in the narrow channels. The rotor is one of the essential components which can convert tidal current energy into rotational energy to generate electricity. The design optimization of rotor is very important to maximize the power production. The performance of rotor can be determined by various parameters including number of blades, shape, sectional size, diameters and etc. This paper introduces the multi-layer vertical axis tidal current power system which can be applied to offshore jetties and piers effectively. Various cases of VAT turbine were designed. Specifically, the number of blades and turbine shape are changed in several cases. Also, performance analysis was carried out by CFD.

참고문헌 (12)

  1. 윤순현, "수직축 항력식 풍력터빈의 구조설계 및 실험평가", 대한기계학회논문집 B, 30(3), pp.278~286 (2006), 대한기계학회
  2. 김병국, "수직축 풍력터빈 성능개선에 관한 실험적 연구", 한국유체기계학회 논문집, 10(3), pp.17~24 (2007), 한국유체기계학회
  3. 노태현, "사보니우스형 풍력 블레이드 주변의 유동장 해석", 대한기계학회 2007 추계학술대회 논문집, pp.13~18 (2007), 대한기계학회
  4. 명관범, "복합 블레이드 방식 수직축 터빈을 이용한 최대전력 출력특성", 석사, pp.2004
  5. 정현주, "조류발전용 수직축 터빈 주위의 비정상 유동 수치해석", 한국해양환경•에너지학회지, 12(1), pp.9~14 (2009), 한국해양환경·에너지학회
  6. 조영진, "사보니우스 터빈을 이용한 파력발전 CFD 성능해석 연구", 2008 유체기계 연구개발 발표회 논문집, pp.557~558 (2008)
  7. 조철희, "조류발전용 다층 수직축 터빈의 성능평가", 2011년도 한국해양공학회 추계학술대회, pp.169~172 (2011), 한국해양공학회
  8. ANSYS Inc, "ANSYS CFX-Solver Theory Guide", ANSYS CFX-11.0, ~ (2006)
  9. Bardina, J. E., "Turbulence Modeling Vaildation", 28th AIAA Fluid Dynamics Conference, pp.1997~2121 (1997), AIAA
  10. Durbine, P. A., "Statical Theory and Modeling for Turbulent Flows" (2001), John Wiley & Sons
  11. Gorban, A. N., "Limits of the turbine efficiency for free fluid flow", Journal of Energy Resources Technology, 123(4), pp.311~317 (2001)
  12. Gorlov, A. M., "The helical turbine: A new idea for low-head hydropower", Hydro Review, 14(5), pp.44~50 (1995)

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