Experimental Study of Hydrodynamic Performance of Backward Bent Duct Buoy (BBDB) Floating Wave Energy Converter

Kim, Sung-Jae; Kwon, Jinseong; Kim, Jun-Dong; Koo, Weoncheol; Shin, Sungwon; Kim, Kyu-Han

doi:10.5574/ksoe.2012.26.6.053

Cited by 7 publications

(3 citation statements)

References 4 publications

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“…파랑 에너지는 해양 에너지 중에서 모든 해역에 폭넓게 분 포하고 부존량이 가장 많아 이를 이용하는 파력발전은 국내 외적으로 활발히 연구되고 있는 분야이다 (Song et al, 2004;Shin and Hong, 2013 (Choi et al, 2004;Hong and Kim, 2004), 500 kW 고정식 진동수주 형 파력발전 시스템 개발 (Kyoung et al, 2006;Hong and Hong, 2010;Kim et al, 2012), 150 W 등부표용 부유식 소 형파력발전기 실해역 실증시험 (Jo and Oh, 2011), 월파형 파 력발전 기반기술 개발 (Park et al, 2011), 250kW 나선암초형 월류파력발전 기술개발 (Kim et al, 2010) (Shin and Hong, 2011). 그리고 최근에 비교적 파랑 에너지가 작은 해역에서 에너지 흡수효율을 높이기 위 하여 고안된 공진형 파력발전 부이에 대한 연구 (Cho and Kweon, 2011;Kweon et al, 2013b;Koh et al, 2013;Kweon et al, 2013c) Fig.…”

Section: 서 론unclassified

Development of a Moving Body Type Wave Power Generator using Wave Horizontal Motions and Hydraulic Experiment for Electric Power Production

Hwang¹,

Lee²,

Yang³

et al. 2016

J Korean Soc Coast Ocean Eng

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To reduce the mechanical energy loss and to get the high energy efficiency, an apparatus of wave power generation inducing a consistent one way rotating motion from the wave reciprocation motions was developed and the hydraulic experiments for the real electric power production were conducted and the results were discussed. In the experiments for the shape of the buoyant tank, the efficiency of the fixed 9 cm diameter type enduring the wave plate weight was 14.6% and this was the best result for all shapes. But although the free sliding type was expected to represent a high efficiency, the experiments did not show a good result as 8.5% efficiency. Therefore, the shape of buoyant tank was decided as the fixed 9 cm diameter type in the next all tests. In the experiments for the various incident waves, when the water depth was 90 cm, the average efficiencies were measured as 3.9% in the 2nd gear, 4.9% in the 3rd gear, 4.9% in the 4th gear, 12.0% in the 5th gear, 10.0% in the 6th gear, 3.1% in the 7th gear, and 3.0% in the 8th gear. Also, when the water depth was 80 cm, the average efficiency was shown as 15.0% with 5th gear condition. Therefore the high average efficiency as 13.5% was given with 80~90 cm water depth and the 5th gear in the model.

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Section: 서 론unclassified

Development of a Moving Body Type Wave Power Generator using Wave Horizontal Motions and Hydraulic Experiment for Electric Power Production

Hwang¹,

Lee²,

Yang³

et al. 2016

J Korean Soc Coast Ocean Eng

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“…Experimental results were available in the cases of both the fixed 112 and floating OWCs 113,114 and were used to compare to the results of the nonlinear potential flow NWT. In particular, the free surface elevation at the mid-point of the OWC chamber (and to a lesser extent at the weather side of the chamber) was compared with the relevant experimental measurements.…”

Section: Fnpf Codesmentioning

confidence: 99%

Nonlinear hydrodynamic and real fluid effects on wave energy converters

Wolgamot

Fitzgerald

2015

Proceedings of the Institution of Mechanical Engineers, Part A:

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Ocean wave energy has been of interest since at least the mid-1970s and great advances in the understanding of the fundamental principles of wave energy extraction and converter modelling have been made using linear hydrodynamic analysis. This paper reviews efforts that have been made to use nonlinear hydrodynamics to analyse wave energy converter behaviour and performance. Both 'partially nonlinear' and fully nonlinear potential flow methods, as well as computational fluid dynamics methods solving the Navier-Stokes equations and smoothed particle hydrodynamics have been used for this purpose and are reviewed here. These more complex methods have been applied primarily to single devices, so array and mooring line interactions are not considered. While a number of studies have been performed in these areas and results are encouraging, further advances are required to give accurate prediction or reproduction of experimental results.

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“…최근 들어 해양플랜트, 해양에너지 등 해양에 대한 관심이 고조 되면서 조파수조(Wave channel) 실험에 대한 필요성이 높아지고 있으며, 국내에서도 선박, 해양플랜트, 파력발전 등 관련된 실험 연구가 많이 수행되고 있다 (Shin et al, 2008;Lee et al, 2013;Hyun et al, 1991;Koo et al, 2012;Kim et al, 2012). McCormick, 2007;Dean and Dalrymple, 1991).…”

Section: 서 론unclassified

Investigation of Characteristics of Waves Generated in Two-Dimensional Wave Channel

안¹,

최²,

김³

2013

Journal of Ocean Engineering and Technology

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Experimental Study of Hydrodynamic Performance of Backward Bent Duct Buoy (BBDB) Floating Wave Energy Converter

Cited by 7 publications

References 4 publications

Development of a Moving Body Type Wave Power Generator using Wave Horizontal Motions and Hydraulic Experiment for Electric Power Production

Development of a Moving Body Type Wave Power Generator using Wave Horizontal Motions and Hydraulic Experiment for Electric Power Production

Nonlinear hydrodynamic and real fluid effects on wave energy converters

Investigation of Characteristics of Waves Generated in Two-Dimensional Wave Channel

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