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BACKGROUND AND AIMS OF THIS STUDY The shift from fossil energy to renewable energy is now a global trend. There is a report that the ratio of world renewable energy to final energy consumption is 19.3% in 2015. Although various power generation devices such as Pelamis, PowerBuoy, TAPCHAN, and so on have been developed so far, the power generation in the ocean is extremely small. It is necessary to install the wave power generation system in large wave field in order to secure a significant amount of power generation. On the other had, it is necessary to ensure the resistance of the system against waves. The purpose of this study is to develop a wave power generation system in a inner bay under relatively mild wave condition to avoid the system crash from huge wave action. In order to achieve the purpose, the laboratory experiments were carried out on two cases where a Savonius-type water rotor was installed in a wave-current coexistence field and in a vertically slotted caisson. Certainly, this type of the water rotor can only get a small amount of power. However, it is expected that significant amount of power may be made by collecting the small amount of power acquired by each of the adjacent water turbines.

DEVELOPMENT OF WAVE POWER GENERATION SYSTEM SUITABLE FOR INNER BAY