風レンズ風車の定常および非定常特性に関する研究

• Toshimitsu Kazuhiko

  National Institute of Technology, Oita College

• Kikugawa Hironori

  National Institute of Technology, Oita College

• Sato Kohei

  National Institute of Technology, Oita College

• Hosoi Takami

  Kyusyu University

• Matsuzaki Jynpei

  National Institute of Technology, Oita College

• Miura Go

  National Institute of Technology, Oita College

Bibliographic Information

Other Title

• 第1報：正弦的に風速変動する風況下の出力特性

Abstract

    The wind turbines with a flanged-diffuser shroud -so called “wind-lens turbine”- are developed as one of high performance wind turbines by Ohya et al. The steady and unsteady wind turbine performances are investigated in the paper. The flow structure around the compact-type wind turbine is made clear by PIV and CFD in steady winds. Also, the compact- and long-type wind-lens turbines clearly show higher efficiency than conventional wind turbines. Furthermore, the performances of the conventional wind turbine and the wind-lens turbines – the compact-type and long-type in unsteady winds are experimentally and numerically investigated. Experimental and numerical examples are presented to demonstrate the dependence of the wind velocity frequency on the power coefficients in the harmonic oscillating velocity wind. Consequently, using the present designed rotor, the long-type wind-lens turbine is the most suitable for the harmonic oscillating velocity wind over the tip-speed ratio 5.0. Furthermore, the numerical estimation can predict the power coefficients for the fluctuating flows within the accuracy of 80%

Journal

• Memoirs of National Institute of Technology, Oita College

  Memoirs of National Institute of Technology, Oita College 47 (0), 1-7, 2010

  National Institute of Technology, Oita College

Keywords

• Wind Turbine
• Power Coefficient
• Unsteady Flow
• Response Time
• FluidMachinery
• Natural Energy

Details

• CRID: 1390001204572376192
• NII Article ID: 110008425609
• DOI: 10.24599/oitactkiyou.47.0_1
• ISSN: 18808921
• ISSN: 13460781
• Text Lang: ja
• Data Source:
  • JaLC
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed