WAVE POWER CONVERSION BY A PROTOTYPE WAVE POWER EXTRACTING CAISSON IN SAKATA PORT

Shigeo Takahashi, Hiroaki Nakada, Hideaki Ohneda, Masazumi Shikamori

Abstract


Ocean wave energy is clean and inexhaustible. Repeated oil crises and the urgent need for environmental preservation on a global scale have made utilization of ocean wave energy increasingly important. The Japanese Ministry of Transport has been developing a wave power extracting caisson breakwater which can absorb wave power and convert it into electric power. The breakwater shown in Fig.l is a composite breakwater with a special caisson for absorption and conversion of wave power. The caisson has a so-called air chamber where wave power is converted into air power. The air power activates a turbine-generator in the machine room on the caisson. The use of the breakwater as a wave power converter will effectively cut down the power generation cost. This breakwater also aims at the improvement of the wave resisting stability and performance as a breakwater by absorbing the wave energy.

Keywords


Sakata Port; wave power; power conversion; power extraction

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