Highly Efficient,Lightweight Wind-Turbine Power Generator

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The prototype machines currently use die-cast rotors, but the current request for assistance is to develop plastic rotors. To make the rotors lighter and increase their power output, the wind power generators will use plastic rotors when they are released as commercial products.

image/source: Aki Tsukioka

Ring type wind turbines are a type of wind power generator that narrows the path through which the wind passes to thereby increase the wind speed and improve power generation efficiency.

image/source: Aki Tsukioka

The most impressive feature is that power can be generated from a weak wind. In fact, ample power can be generated with a wind speed of 3-5m/second in urban areas. In addition, the equipment outputs almost no sound. Lastly, the structure is such that the blades are not exposed on the outside, so the equipment poses no danger to birds or humans.

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With a weak wind force, the ring wind turbine can generate 5-10 times as much power compared to a wind turbine with the same bore diameter.The battery is housed in a stand, so the equipment can function as an uninterruptable power supply as well.

Rated output of 3kW (wind speed of 8m/second).The goal is to generate 10MW/h yearly (when 1.2kW/h is generated with an average wind speed of 6m/second).The amount of power that can be generated from the wind is proportional to the square of the rotor diameter and to the third power of the wind speed.

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SOURCEAki Tsukioka
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