Wave Power Extraction at Coastal Structure by Means of Moving Body in the Chamber

A series of study on wave power extractors which may utilize a part of the coastal structures has been performed by the group of faculties of Muroran Institute of Technology since 1978. Three kinds of extractor belonging to the so-called fixed type had been developed and studied in the laboratory. They are the air chamber with flap, the wave turbine system and the pendulor system. The last two systems have been subsequently studied at the field test plant constructed at Port Muroran. The study shows that the pendulor system brings an excellent power conversion efficiency.