S051021 低重心垂直軸風車の回転実験([S05102]自然の流体エネルギー利用技術(風力,水力,波力)(2))

概要

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An experimental model of the proposed Low Center-of-Gravity Wind Turbine (LCGWT) with four tapered blades, the chord length of which increases continuously and non-linearly from the rotor-top towards the rotor-bottom, had been made by the rapid prototyping (RP). The shape of the LCGWT rotor is elliptic, the diameter of which is 0.6 m, and the height is 0.392 m. The rotor without the rotor-inside center pole was deformed by the centrifugal force; the decrease in rotor height was about 60 mm at high rotational speed of 600 rpm. As compared to the LCGWT rotor with center pole, the rotor without the center pole showed a little better torque performance. It was found out that the LCGWT has the gradually increasing torque curve as compared to that of the conventional Straight-Wing Vertical Axis Wind Turbine.
2011-09-11