Title page for etd-0527116-094600


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URN etd-0527116-094600
Author Ching-Chi Liu
Author's Email Address No Public.
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Department Mechanical and Electro-Mechanical Engineering
Year 2016
Semester 2
Degree Master
Type of Document
Language English
Title Flow Channel Visualization and Velocity/Temperature/Concentration Measurements of an Air-breathing Micro Direct Methanol Fuel Cell
Date of Defense 2017-07-26
Page Count 158
Keyword
  • concentration field
  • velocity field
  • μLIF
  • μPIV
  • μDMFC
  • temperature field
  • Abstract This study is mainly for the observation and analysis of an air-breathing micro direct methanol fuel cell performance and flow fields, including velocity, temperature, and concentration field. Anode flow plate is shaped in serpentine, and cathode flow plate is in dendrite-type. In this experiment, the methanol concentration and the methanol flow rate of the anode were taken as the operating parameters to discuss V-I and P-I curves. Moreover, micro particle image velocimetry (μPIV)、micro laser-induced fluorescent (μLIF), and thermocouples were also adapted to measure the flow, temperature, concentration field of anode, and the temperature field of cathode. Then, the result of the pressure drop, Reynolds number (Re), heat flux (q"), convection heat transfer coefficient (h), and concentration gradient can be obtained. Moreover, the friction factor (f) and Nusselt number (Nu) can be correlated in term of the related Re, of which each has form f=46Re-095 and Nu=0.176Re0.035, respectively. Through the Reynolds analogy, we can get the Schmidt number (Sc) and Sherwood number (Sh) with the form Sh=0.05Sc0.035.
    Advisory Committee
  • Ching-Jenq Ho - chair
  • Chao-Kuang Chen - co-chair
  • Shou-Shing Hsieh - advisor
  • Chi-Hui Chien - advisor
  • Files
  • etd-0527116-094600.pdf
  • Indicate in-campus at 5 year and off-campus access at 5 year.
    Date of Submission 2017-08-15

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