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축소-확대 유로에 적용한 횡류형 수직 풍력발전시스템의 개발

Development of a Cross-flow Type Vertical Wind Power Generation System for Electric Energy Generation Using Convergent-Divergent Duct

  • 정상훈 (서울과학기술대학교 NIT융합대학원) ;
  • 정광섭 (서울과학기술대학교 건축학부) ;
  • 김철호 (서울과학기술대학교 자동차공학과)
  • Chung, Sang-Hoon (NIT Fusion Graduate School, Seoul National University of Science and Technology) ;
  • Chung, Kwang-Seop (School of Architecture, Seoul National University of Science and Technology) ;
  • Kim, Chul-Ho (Dept. of Automotive Engr., Seoul National University of Science and Technology)
  • 투고 : 2011.06.17
  • 발행 : 2011.08.10

초록

New concept of wind energy conversion system is proposed to increase the energy density at a given working space. The quality of wind for wind power generation is depend on its direction and speed. However, the quality is not good on land because wind direction is changeable all the time and the speed as well. The most popularly operated wind turbine system is an axial-flow free turbine. But its conversion efficiency is less than 30% and even less than 20% considering the operating time. In this research, a cross-flow type wind turbine system is proposed with a convergent-divergent duct system to accelerate the low speed wind at the inlet of the wind turbine. Inlet guide vane is also introduced to the wind turbine system to have continuous power generation under the change of wind direction. In here, the availability of wind energy generation is evaluated with the change of the size of the inlet guide vane and the optimum geometry of the turbine impeller blade was found for the innovative wind power generation system.

키워드

참고문헌

  1. Yunus, A. C. and John, M. C., 2010, Fluid Mechanics Fundamentals and Applications, Mc-GrawHill, 2nd Edition, pp. 807-831.
  2. Ha, J. H., Kim, H. C. and Kim, C. H., 2007, A Numerical Study on an Optimum Design of a Cross-flow Type Power Turbine(CPT), Trans. KSME, pp. 123-127.
  3. Ha, J. H., 2010, An Optimum Design of Corssflow Power Turbine(CPT) System for the Application of Aerodynamic Energy on a Running Vehicle, Doctor Thesis, National University of Science and Technology, Seoul, Korea, pp. 16-27.
  4. Douglas, J. F. et al., 2001, Fluid Mechanics, Prentice Hall, pp. 406-447.
  5. Olson, R. M. and Wright, S. J., 1990, Essentials of Engineering Fluid Mechanics, 5th ed., Harper and Row, Publishers Inc.
  6. Kim, H., Ha, J. and Kim, C.-H., 2007, A numerical study on the aerodynamic effect of a rear-side guide vane(RGV) on a recreational vehicle, Spring Conference of KSAE, pp. 894-898.
  7. Ha, J. and Kim, C.-H., 2008, A Study on an Aerodynamic effect of a Rear Upper Guide system on the heavy truck, Int, Automotive Technology, Vol. 2, No. 2, pp. 1093-1098.

피인용 문헌

  1. A Study of Hood-Type Vertical Axis Wind Turbine Embedded to Highway Median Strip vol.27, pp.1, 2013, https://doi.org/10.5207/JIEIE.2013.27.1.024