0909 レンズ風車の多脚支持構造による発電量および耐風特性への影響(OS9 再生可能流体エネルギーの利用技術,オーガナイズドセッション)

Renewable energy resources including wind power generation are receiving more and more attention these days.In Japan,however,because of small land area,steep terrain,and population concentration in plane area,it is difficult to construct massive wind farm on land.The concept of offshore wind farm can overcome this problem.We have developed a wind turbine with a brimmed diffuser(Wind-Lens Turbine) that has an additional hollow structure(Wind-Lens) consists of a diffuser shroud and a ring-shaped brim at the diffuser exit periphery To install the Wind-Lens Turbine in an offshore wind farm,we need to size up the Wind-Lens Turbine.This time,we propose a multi-supporting structure appropriate to a floating platform and investigate the effects of multi-supporting structure on the wind turbine performance and resistance for the Wind-Lens Turbine.We make some wind tunnel experiments and numerical simulations.