縦スリット式直立消波工を利用した波力発電システムの開発

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書誌事項

タイトル別名
  • Development of Wave Power Generation System Using a Vertical Slit Type Breakwater
  • 縦スリット式直立消波工を利用した波力発電システムの開発 : 水車ならびに屈曲板を利用した発電機構
  • タテ スリットシキ チョクリツショウハコウ オ リヨウ シタ ハリョク ハツデン システム ノ カイハツ : スイシャ ナラビニ クッキョクバン オ リヨウ シタ ハツデン キコウ
  • ― Waterwheel and Bending Plate Type Generators ―
  • ― 水車ならびに屈曲板を利用した発電機構 ―

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抄録

A new type of wave power generation system is proposed to be installed in a vertical slit type breakwater. The merits of the system are listed as follows. (i) no occupation of the sea surface, (ii) maintenance facility, and (iii) high energy efficiency by using accelerated flow from the slit of breakwater. In this study, several kinds of water wheels are examined to be installed in a model wave breaker with 1/12 scale ratio to the actual system. The experimental results show that the drag type water wheel (Savonius wheel) has a higher performance compared with the lift type (Darius wheel), since the latter is not accelerated sufficiently during relatively short period of the sea wave. Based on the result that the drag type is favorable, a new generator is proposed to perform higher efficiency. An elastic rectangular plate connected to a wheel and axle via a string is set in the water. When the wave drag bends the plate, a tension appears in the string and it rotates the wheel connected to a generator. The performance of bending plate generator is examined under various experimental conditions. The results show that a soft textile with zero elasticity has the highest performance. The output per occupied sea area is expected as 23,500(W/m2) in the real system, which is much higher than other types of generators treated in literatures.

収録刊行物

  • 実験力学

    実験力学 13 (1), 60-66, 2013

    日本実験力学会

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