Design Method for the Darrieus Type Wind Turbine

다리우스형 풍력블레이드의 설계 방법

  • Lee, Jang-Ho (School of Mechanical Engineering, Kunsan National University) ;
  • Du, Lian (Graduate School of Mechanical Engineering Kunsan National University)
  • Published : 2009.06.25

Abstract

Darrieus wind turbine blade is one of the vertical wind power system in which the lift of blade is used. In the calculation of wind power for the type of that, the multiple streamtubes method is known as an effective method. But it has big difference in the region of higher tip speed ratio because the incoming air velocity is used in the calculation of lift. The incoming air velocity is reduced from inlet to outlet continually by transferring energy to the wind blade. In this study, the air velocity on the blade, which is called blade velocity, is obtained with newly developed algorithm and used to determine the lift. And it is verified that applying blade velocity on the lift calculation cause the power prediction to improve dramatically in the region of higher tip speed ratio.

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