Utilization of Double-Water-Chamber Seawall type for Wave Energy Extraction and Wave Dissipation

摘要

Variation type and model of wave energy converter have been applied in many countries around the world in order to harvest the ocean wave power. A number of other devices were developing and testing by researchers in the experimental scale. In the present paper investigates double-water-chamber seawall performance for wave energy converter. The main body of water chamber seawall is like OWC structure. Savonius water turbine and guide vanes used to extract a wave power instead of air turbine as usually used in the OWC type wave converter. The Savonious water turbine with two blade type was chosen in this study and a guide vanes to guiding the water flow to accelerate the water turbine was applied. Application of double-water-chamber seawall is also intended to reduce the reflection wave. The performance of double-water-chamber seawall was tested in the flume tank in order to obtain the efficiency rate and reflection coefficient.