An Experimental Study on Primary Efficiency of a Wave Energy Converter "Backward Bent Duct Buoy" in regular wave conditions

規則波中における後ろ曲げダクトブイ型波力発電装置の一次変換性能に関する実験的研究

A primary conversion efficiency of a floating OWC-type wave energy converter "Backward Bent Duct Buoy (BBDB)" in regular waves is investigated in 2D and 3D wave tank tests. Firstly, the amplitude and phase difference between the internal wave height and motions are investigated. In a 3D tank test, surge, heave and pitch become in-phase at efficiency become maximum. The phase of internal wave height is close to motion. Secondary, the efficiency of duct-extended buoy is investigated in 2D test. Efficiency is reduced because the pitch becomes small by duct extension. Thirdly, the effect of a moment of inertia is investigated. In case of total mass and draft is constant, frequency band of high-efficiency increases as the moment of inertia become large. Fourthly, the effect of the shape of the air chamber is also investigated.

• Record URL:
  https://doi.org/10.2534/jjasnaoe.19.79
• Summary URL:
  http://scholar.google.com/scholar_lookup?title=An+Experimental+Study+on+Primary+Efficiency+of+a+Wave+Energy+Converter+%22Backward+Bent+Duct+Buoy%22+in+regular+wave+conditions&author=Y.+Imai&author=S.+Nagata&author=K.+Toyota&author=T.+Murakami&publication_year=2014
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/18803717
• Authors:
  • Imai, Yasutaka
  • Nagata, Shuichi
  • Toyota, Kazutaka
  • Murakami, Tengen
• Publication Date: 2014

Language

• English
• Japanese

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 79-88
• Serial:
  • Journal of the Japan Society of Naval Architects and Ocean Engineers
  • Volume: 19
  • Issue Number: 0
  • Publisher: Japan Society of Naval Architects and Ocean Engineers
  • ISSN: 1880-3717
  • EISSN: 1881-1760
  • Serial URL: https://www.jstage.jst.go.jp/browse/jjasnaoe/-char/en
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Buoys; Energy conversion; Moments of inertia; Water waves; Wave height; Wave motion
• Subject Areas: Hydraulics and Hydrology; Marine Transportation; I70: Traffic and Transport;

Filing Info

• Accession Number: 01541920
• Record Type: Publication
• Source Agency: Japan Science and Technology Agency (JST)
• Files: TRIS, JSTAGE
• Created Date: Oct 29 2014 11:16AM