The backward bend duct buoy-an improved floating type wave powerdevice

摘要

The application of the wave power electric generator, used in thenavigation tail-tube buoy, to other buoy shapes has been restrictedbecause of difficulty in fitting an air chamber. The backward bent ductbuoy configuration, developed to solve this problem, is applicable tonavigation aids including light buoys and light ships, telemeteringbuoys, military warning buoys, and other utility buoys. It can also beused for offshore station-keeping buoys, with or without moorings. Byupscaling floating wave power generators are created that can supplypower to both island and coastal communities. The energy cost of suchsystems is estimated to be about 38 yen/kWh for islands in the subtropiczone and about 15 yen/kWh in high-wave-power zones