簡易檢索 / 詳目顯示

研究生: 陳柏宏
Po-Hung Chen
論文名稱: 被動式微型直接甲醇燃料電池陰極排水裝置設計製造與測試
Development of the Passive Water Removal Device in Micro DMFC Cathode
指導教授: 曾繁根
Fan-Gang Tseng
口試委員:
學位類別: 碩士
Master
系所名稱: 原子科學院 - 工程與系統科學系
Department of Engineering and System Science
論文出版年: 2008
畢業學年度: 96
語文別: 中文
論文頁數: 66
中文關鍵詞: 燃料電池角落流毛細力表面張力直接甲醇燃料電池被動式
外文關鍵詞: fuel cell, corner flow, capillary, surface tension, DMFC, passive
相關次數: 點閱:3下載:0
分享至:
查詢本校圖書館目錄 查詢臺灣博碩士論文知識加值系統 勘誤回報
  • 由於石油逐漸短缺使得替代能源受到矚目,而燃料電池的低汙染特色使得它成為一項熱門的研究,其中直接甲醇燃料電池藉著低溫操作與直接使用甲醇為燃料等特色使它較受到重視。目前燃料電池遭遇到的眾多問題中有其中一個是陰極反應產生的水會積存在反應區,使得空氣難以進入反應,造成燃料電池效率的降低。本論文中,成功地利用負光阻SU-8 2035經由黃光微影製程製作了一個具有排水流道與空氣進入孔交錯的結構,然後再利用表面處理使得水從流道移除而不阻塞空氣進入孔,並且移除的方式是利用毛細力驅動流體而不耗費能量,在排水流道的測試結果中,移除水的能力可達3.42μls-1cm-2。此外當產水量較大,超過流到所能移除的量時,在有吸水材料的輔助之下,最終依然能將水從流道中移除。也觀測了蒸氣在流道上凝結的情形,發現當足夠的蒸氣凝結液體佈滿了流道時,會聚集起來並且朝著流道的方向移動帶走。


    第一章 緒論............................1 1.1燃料電池介紹.........................1 1.2燃料電池基本工作原理.................2 1.3直接甲醇燃料電池.....................3 1.4本論文研究動機與目的.................4 第二章 文獻回顧........................5 2.1燃料電池水的來源.....................5 2.2燃料電池水的移除.....................8 第三章 實驗原理與結果討論.............22 3.1理論回顧與計算......................22 3.2被動式直接甲醇燃料電池設計概念......25 3.3陰極排水板設計概念..................26 3.3.1第一代陰極排水板設計..............26 3.3.2第二代陰極排水板設計..............28 3.3.3第三代陰極排水板設計..............29 3.4實驗製程............................30 3.5實驗量測架構........................38 3.6實驗結果............................39 第四章 結論...........................64 第五章 參考文獻.......................65

    [1] S. C. Yao, X. D. Tang, C. C. Hsieh, Y. Alyousef, M. Vladimer, G. K. Fedder, and C. H. Amon, "Micro-electro-mechanical systems (MEMS)-based micro-scale direct methanol fuel cell development," Energy, vol. 31, pp. 636-649, Apr 2006.
    [2] H. G. Haubold, T. Vad, H. Jungbluth, and P. Hiller, "Nano structure of NAFION: a SAXS study," Electrochimica Acta, vol. 46, pp. 1559-1563, 2001.
    [3] S. Song, W. Zhou, W. Li, G. Sun, Q. Xin, S. Kontou, and P. Tsiakaras, "Direct methanol fuel cells : Methanol crossover and its influence on single DMFC performance," Ionics, vol. 10, pp. 458-462, 2004.
    [4] E. C. Kumbur, K. V. Sharp, and M. M. Mench, "Liquid droplet behavior and instability in a polymer electrolyte fuel cell flow channel," Journal of Power Sources, vol. 161, pp. 333-345, Oct 20 2006.
    [5] C. Y. Chen and P. Yang, "Performance of an air-breathing direct methanol fuel cell," Journal of Power Sources, vol. 123, pp. 37-42, Sep 15 2003.
    [6] F. Y. Zhang, X. G. Yang, and C. Y. Wang, "Liquid water removal from a polymer electrolyte fuel cell," Journal of the Electrochemical Society, vol. 153, pp. A225-A232, 2006.
    [7] X. G. Li, I. Sabir, and J. Park, "A flow channel design procedure for PEM fuel cells with effective water removal," Journal of Power Sources, vol. 163, pp. 933-942, Jan 1 2007.
    [8] U. Ho Jung, S. Uk Jeong, K. Tae Park, H. Mee Lee, K. Chun, D. Woong Choi, and S. H. Kim, "Improvement of water management in air-breathing and air-blowing PEMFC at low temperature using hydrophilic silica nano-particles," International Journal of Hydrogen Energy, vol. 32, pp. 4459-4465, 2007.
    [9] Y. J. Chuang, C. C. Chieng, C. Pan, S. J. Luo, and F. G. Tseng, "A spontaneous and passive waste-management device (PWMD) for a micro direct methanol fuel cell," Journal of Micromechanics and Microengineering, vol. 17, pp. 915-922, May 2007.
    [10] T. Metz, N. Paust, C. Muller, R. Zengerle, and P. Koltay, "Passive water removal in fuel cells by capillary droplet actuation," Sensors and Actuators A: Physical, vol. In Press, Corrected Proof.
    [11] C. R. Buie, J. D. Posner, T. Fabian, C. A. Suk-Won, D. Kim, F. B. Prinz, J. K. Eaton, and J. G. Santiago, "Water management in proton exchange membrane fuel cells using integrated electroosmotic pumping," Journal of Power Sources, vol. 161, pp. 191-202, Oct 20 2006.
    [12] T. H. Tsai and S. C. Wong, "Water Removal at the Cathode of a Direct Methanol Fuel Cell Using Capillary Parallel Flow Field," National Tsing Hua University Master Thesis, 2007.
    [13] M. M. Weislogel and S. Lichter, "Capillary flow in an interior corner," Journal of Fluid Mechanics, vol. 373, pp. 349-378, Oct 25 1998.
    [14] X. M. Ren and S. Gottesfeld, "Electro-osmotic drag of water in poly(perfluorosulfonic acid) membranes," Journal of the Electrochemical Society, vol. 148, pp. A87-A93, Jan 2001.
    [15] M. L. Steen, A. C. Jordan, and E. R. Fisher, "Hydrophilic modification of polymeric membranes by low temperature H2O plasma treatment," Journal of Membrane Science, vol. 204, pp. 341-357, 2002.

    無法下載圖示 全文公開日期 本全文未授權公開 (校內網路)
    全文公開日期 本全文未授權公開 (校外網路)

    QR CODE