English  |  正體中文  |  简体中文  |  全文笔数/总笔数 : 56379/90243 (62%)
造访人次 : 11684671      在线人数 : 41
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: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/98395


    题名: Visualization and thermal resistance of a sintered wicks structure evaporator in a two phase loop thermosyphon
    作者: KANG, Shung-Wen;HUANG, Chun-Hsien;CHEN, Yu-Tang
    贡献者: 淡江大學機械與機電工程學系
    关键词: Visualization;Two phase loop thermosyphon;Evaporator resistance;Sintered powder wick;Meniscus receding
    日期: 2014-07
    上传时间: 2014-07-28 14:03:56 (UTC+8)
    出版者: Tokyo: Japan Society of Mechanical Engineers
    摘要: A prototype two-phase loop thermosyphon (TPLT) was built and tested for thermal performance. This experimental study simultaneously investigated the evaporator resistance and flow visualization in operating the TPLT under sub-atmospheric pressure. To facilitate the visualization of flow regime in the evaporator, a transparent glass window was attached to the evaporator. Evaporators with 1-mm-thick sintered copper powder wicks (average diameter, 100 μm) were used. Temperature distribution and evaporator resistance were measured while increasing the input power in a series of 11 steps (20, 60, 100, 120, 140, 160, 180, 200, 220, 240, and 260 W) until the sintered wicks reached completely dried out. Temperature fluctuations and instabilities in the vapour and liquid lines were observed. Heat leakage from the evaporator and intermittent motion in the flow regime were significant factors in generating the implicit boiling instability. As the input power was increased, onset of pool boiling, nucleate boiling, as well as slug and bubbles were observed successively when the liquid level was above the surface of the wicks. When the net input power reached 236 W, the water film suddenly receded toward the wick surface. The process of the meniscus receding during the film evaporation, and the dynamics from the initial condition until dryout on the sintered copper wicks were observed and documented.
    關聯: Journal of Thermal Science and Technology 9(2), 14-00078(10pages)
    DOI: 10.1299/jtst.2014jtst0007
    显示于类别:[機械與機電工程學系暨研究所] 期刊論文

    文件中的档案:

    档案 描述 大小格式浏览次数
    9_2014jtst0007.pdf1620KbAdobe PDF0检视/开启
    index.html0KbHTML254检视/开启
    index.html0KbHTML228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