淡江大學機構典藏:Item 987654321/62532
English  |  正體中文  |  简体中文  |  全文笔数/总笔数 : 62805/95882 (66%)
造访人次 : 3987985      在线人数 : 623
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
搜寻范围 查询小技巧:
  • 您可在西文检索词汇前后加上"双引号",以获取较精准的检索结果
  • 若欲以作者姓名搜寻,建议至进阶搜寻限定作者字段,可获得较完整数据
  • 进阶搜寻


    jsp.display-item.identifier=請使用永久網址來引用或連結此文件: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/62532


    题名: 風力發電機風洞實驗阻塞比效應探討
    其它题名: Blockage Corrections in Wind Tunnel Tests of Small Horizontal-axis Wind Turbines
    作者: 陳增源;Chen, T. Y.;劉立仁;Liou, L. R.
    贡献者: 淡江大學航空太空工程學系
    关键词: 水平軸式風力發電機;風洞;阻塞比效應;horizontal-axis wind turbine (HA WT);wind tunnel;blockage effect
    日期: 2010-11
    上传时间: 2011-10-18 21:46:25 (UTC+8)
    出版者: 淡江大學航空太空工程學系
    摘要: 本研究定量探討水平軸式風力發電機風洞實驗時,其功率靜、數受到風洞阻塞效應的影響。阻塞因
    子((U_T/U_F)^3),是利用皮管量測風洞有轉子時之風速(U_T)無轉子時之風速(U_F)計算而得。研究結果
    顯示阻塞因子和轉子的尖速比、葉片的螺距角及風洞阻塞比有很明顯的關連,越大的尖速比與阻塞比
    ,但阻塞因子越小,而尖速比達到某定值時,阻塞因子接近一個常數值。而在阻塞比只有10% 時,其
    阻塞效應低於5% ;當尖速比小、或葉片螺距角在25 度時,阻塞效應已低至可忽略, 功率像數無需作修正。
    This study quantitatively investigates the effects of tunnel blockage on the turbine power coefficient in
    with tunnel tests of small horizontal-axis wind turbines (HAWTs). The blockage factor (BF), ((U_T/U_F)^3) , was
    UF
    determined by measuring the tunnel velocities with and without rotors using a pitot-static tube under various
    test conditions. Results show that the BF depends strongly on the rotor tip speed ratio (TSR), the blade pitch
    angle(β), and the tunnel blockage ratio (BR). The larger the TSR and BR are, the smaller the BF is. The BF
    approaches, a constant value when the TSR exceeds a certain value. This study also shows that the blockage
    correction is less than 5% for a BR of 10%. No blockage correction is necessary for small TSR under all of
    the investigated conditions, and for the investigated blade pitch angle of 25°.
    關聯: 第七屆海峽兩岸航空太空學術研討會論文集,頁181-188
    显示于类别:[航空太空工程學系暨研究所] 會議論文

    文件中的档案:

    档案 大小格式浏览次数
    index.html0KbHTML261检视/开启

    在機構典藏中所有的数据项都受到原著作权保护.

    TAIR相关文章

    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - 回馈