Irregular Wave Test on the Improvement of Wave Power Generation Utilizing the Restoring Force Motion through Elastic Spring

• Main Authors: Wei-ming Wu, 巫偉銘
• Other Authors: RUEY-SYAN SHIH
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/49187069419088828000

碩士 === 東南科技大學 === 防災科技研究所 === 97 === This study developed an improvement of wave power generation utilizing the restoring force technique through elastic spring which has not yet being applied in reality, the investigation was carried out experimentally by irregular wave test with varies wave height and wave period. The power generation system composed water wheel, ratchet, and a pull-back car were used to investigate the feasibility and efficiency of the technique to the development of wave power generation. The results of the analysis reveals that when the blade is narrow, the variation of waveform is unapparent anyhow whether the action of the blade on the water wheel is oscillating or in spring motion, yet in the full-span case, the variation of waveform is appreciable when the wave period decrease, i.e., the dissipation of short period wave is much effective. Since the irregular waves comprise numerous components of sinusoidal waves, the interaction of wave and wave in different condition is obviously, moreover, most of the surface fluctuations are rather feeble for power generation, by the adoption of restoring force technique, the voltage output is enhanced nearly 13 times as much as that of oscillating design. Also, by the comparison between narrow-blade and full-span-blade, it is suggested that narrow-blade is more applicable for power generation, especially when applying in a wave farm.