Title page for etd-0723109-085415


[Back to Results | New Search]

URN etd-0723109-085415
Author Wei-chih Chen
Author's Email Address m963020005@student.nsysu.edu.tw
Statistics This thesis had been viewed 5364 times. Download 2239 times.
Department Mechanical and Electro-Mechanical Engineering
Year 2008
Semester 2
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title Effect of Different Flow-Fields on μDMFC Performance
Date of Defense 2009-07-02
Page Count 128
Keyword
  • cell performance
  • pressure drop
  • visualization
  • μDMFC
  • Abstract In this study, cell performance tests and measurements of the pressure drop in the anode flow channels of a micro methanol fuel cell (μDMFC) were conducted. The effect of different operating parameters on μDMFC performance was experimentally investigated for serpentine flow-field configuration. Experiments were conducted through a serious experiments with different operating conditions of temperature (40、60、70、80oC)、methanol concentration (0.5、1、1.5、2 M)、channel width (0.5、0.6、0.7、0.8、1、1.5、2 mm) and flow rate (10-20 sccm). Experimental results are presented in the form of polarization VI curves and PI curves under above operating conditions. The experimental results show that the pressure drop decrease with increasing current density. It has also shown that the pressure drop always increased with the methanol solution flow rates. The relationship between pressure drop and CO2 bubbles production rate would change with the current density increase. Finally, an optimal channel size of 700 μm for the present μDMFC could be obtained.
    Advisory Committee
  • Ching-Jeng Ho - chair
  • Chin-Chia Su - co-chair
  • Shou-Shing Hsieh - advisor
  • Files
  • etd-0723109-085415.pdf
  • indicate access worldwide
    Date of Submission 2009-07-23

    [Back to Results | New Search]


    Browse | Search All Available ETDs

    If you have more questions or technical problems, please contact eThesys