Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Development of a Cross-flow Type Vertical Wind Power Generation System for Electric Energy Generation Using Convergent-Divergent Duct

축소-확대 유로에 적용한 횡류형 수직 풍력발전시스템의 개발

  • 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)
  • 정상훈 (서울과학기술대학교 NIT융합대학원) ;
  • 정광섭 (서울과학기술대학교 건축학부) ;
  • 김철호 (서울과학기술대학교 자동차공학과)
  • Received : 2011.06.17
  • Published : 2011.08.10
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Abstract

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.

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References

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