EFFECTS OF PITCH ANGLE AND ROTOR SOLIDITY OF A VERTICAL AXIS TURBINE WITH VARIABLE PITCH BLADE ON A TURBINE EFFICIENCY

• IKOMA Tomoki

  日本大学理工学部 海洋建築工学科

• MASUDA Koichi

  日本大学理工学部 海洋建築工学科

• NAKAZAWA Naseru

  日本大学大学院理工学研究科 海洋建築工学専攻

• RHEEM Chang-Kyu

  東京大学生産技術研究所

• ETO Hiroaki

  日本大学理工学部 海洋建築工学科

Bibliographic Information

Other Title

• 垂直軸可変ピッチ翼水車のソリディティとピッチ制御角度が水車効率に与える影響

Abstract

 A purpose of this study is to improve a performance of a vertical axis marine turbine with variable pitch blades. The study investigated how pitch angle controlled and the roter solidity effect on the turbine efficiency and conducted flume tank experiments using a turbine model. Besides, numerical experiments with CFD calculations were performed. The turbine model has 0.5m in diameter of turbine, 0.6 m length of a blade and removable from 1 to 6 blades with a section of NACA0018, which has an arch camber line. As a method of pitch control system, the cyclic mechanism was applied so pitch angle was absolutely mechanically determined. As a result, when the solidity of 0.293 and setting angle of blade - 7 degrees were set, the model showed the highest performance, which was the turbine efficiency of 55% in 2.0 TSR (λ).

Journal

• Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)

  Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering) 70 (2), I_91-I_96, 2014

  Japan Society of Civil Engineers

Keywords

• Tidal Energy
• Vertical Axis Turbine
• Variable Pitch System
• Cycloidal mechanism

Details

• CRID: 1390282680328709760
• NII Article ID: 130004697405
• DOI: 10.2208/jscejoe.70.i_91
• ISSN: 21854688
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed