Feasibility Study on Small-scale Tidal Power Generation by Using Rotation Flow Turbine for Fishery Utilization on the Coast of Aomori Prefecture

Abstract

We conducted the wind tunnel experiment of the Rotation Flow Turbine developed in Hirosaki University to measure and observed the flow velocity on the coast of Tairadate. As a result, we get the accurate torque coefficient line and max power coefficient 0.06 at λ of 0.25 in wind tunnel experiment. About the experiment of flow velocity on the coast of Tairadate, it was found that the amount of power generation at the shallow depth is high, and it is possible to install the metal halide lamp on trap-net. If the Light-emitting diode （LED） is chosen, it can be installed eight, and that is equivalent to two metal halide lamps. Since the catch of main fish continue to decrease in recent years, the trap-net fishermen hope to develop more effective fishing method to solve this problem. As one of the methods, there is a research result that the catch amount like Japanese horse mackerel was increased by installing a metal halide lamp on the trap-net and utilizing the phototaxis of the fish.