四国山間地の傾斜地におけるマイクロ風車の発電性能

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タイトル別名
  • Performance of a Micro-Wind Power Generator Located on a Slope in the Mountainous Area of Shikoku

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説明

Field observations were conducted to evaluate the amount of energy that could potentially be generated using a micro-wind generator in a mountainous area of Shikoku. The relationship between the electricity generated by the micro-wind generator and the wind conditions on the slopes was determined based on observations conducted from September 2005 to July 2006. The average daily power output from the generator was 199 Wh from an average horizontal wind speed of 2.43 m/s, which is not considered satisfactory for practical use in mountainous areas. Several aspects associated with the use of such generators therefore require attention before they can be employed in the field.<br>Compared to upslope winds, the increased power generation from downslope winds was thought to be caused by the higher temporal fluctuation of wind speeds. Even the average wind velocity is same level, the increased frequency of fluctuating wind conditions results in increased power generation because the micro-wind generator is very sensitive to changes in the wind, and because the wind energy is theoretically linear to the cube of wind speed.

収録刊行物

  • 農業気象

    農業気象 65 (1), 11-17, 2009

    日本農業気象学会

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