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題 名 | 繩柱風車發電系統=Airborne Wind Turbines |
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作 者 | 周鑑恆; | 書刊名 | 物理教育學刊 |
卷 期 | 11:1 2010.04[民99.04] |
頁 次 | 頁13-21 |
分類號 | 448.165 |
關鍵詞 | 風力發電; 風箏; Wind power; Kite; |
語 文 | 中文(Chinese) |
中文摘要 | 風力發電的商業運轉先天上有兩項主要缺點:一、地面風速較小,風能密度不高,以致於功率較大的風車尺寸都必須很大,且須裝設在塔柱上;二、地面風速變化相當大,有時甚至無風,因此一般風車的利用率,約僅為預計利用率的 19 %至 35 %左右。氣象研究顯示:高空長年吹拂強勁且穩定的風。本研究提出繩柱風車的構想,利用風箏將風車拉升至空中,使風車穩定平衡而迎風發電,產生穩定可靠且功率較符實用的電力輸出,滿足一般用電的需求。這項創作涉及電磁學、力學的重要概念以及氣象知識,啟發風力發電之創新;適合學生組隊研製,寓教於樂,經實際操作,發展出一種效果頗佳的教學模式。 |
英文摘要 | Commercial wind-powered electricity has at present two inherent defects. 1) The wind speed near the ground is small, and the density of energy of the wind power is also small. The size of a wind turbine to generate adequate power must therefore be large and the wind turbine must be placed at the top of a tower. 2) The speed of the wind near the ground is generally variable, with sometimes no wind at all. The period in which a wind turbine is available to produce electricity is consequently about 19%-35% of the period that is expected. According to meteorology, it is well known that at high altitude the wind blows strongly and stably. We propose an innovative design for a wind- turbine system. Utilizing kites, we raise twin wind turbines into the sky. The twin wind turbines, working in the wind at a high altitude, drive generators to produce electricity successfully with sufficient power. The new design and related experiments relate to mechanics, electromagnetism and meteorology, and inspire scientists to create a new wind-powered electricity system. Students forming a research group to build such a system benefit from science education in a pleasant manner. After we finished several such systems in our school, we developed a new teaching strategy that provides to all students opportunities to enhance their scientific knowledge. |
本系統中英文摘要資訊取自各篇刊載內容。