This paper aims to analyze the membrane electrode assembly (MEA) of the direct methanol fuel cell (DMFC) in order to provide a reference for the design of DMFC. The slow kinetics of methanol oxidation and whether the anode should be hydrophobic or hydrophilic were seldom discussed in previous research. Therefore, this paper focuses on the electrode of the anode. The anodic gas diffusion layer (GDL) is treated with different hydrophilic degrees. Then, the microstructure of GDL is examined using SEM. The water content and water droplet contact angle of GDL were measured. The results are then compared with each other to determine the optimal treatment procedure of the anode. The second part of this paper proposed a new design of the DMFC system. After choosing the appropriate MEAs for the DMFC stack, the stack was combined with the water circulatory system, air circulatory system, and electricity controller to complete the DMFC system. The efficiency of the whole system is discussed.
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e-mail: sd9514812.me95g@nctu.edu.tw
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April 2011
This article was originally published in
Journal of Fuel Cell Science and Technology
Design Innovations
Design and Performance Test of the Direct Methanol Fuel Cell System
Shinn-Dar Wu,
Shinn-Dar Wu
Department of Mechanical Engineering,
e-mail: sd9514812.me95g@nctu.edu.tw
National Chiao Tung University
, HsinChu, Taiwan 300, R.O.C.
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Chang-Pin Chou,
Chang-Pin Chou
Department of Mechanical Engineering,
National Chiao Tung University
, HsinChu, Taiwan 300, R.O.C.
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Ay Su,
Ay Su
Department of Mechanical Engineering,
Yuan Ze University
, Chung-Li, Taiwan 32003, R.O.C.
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Jenn-Jiang Hwang
Jenn-Jiang Hwang
Department of Greenergy Technology,
National University of Tainan
, Tainan 700, Taiwan, R.O.C.
Search for other works by this author on:
Shinn-Dar Wu
Department of Mechanical Engineering,
National Chiao Tung University
, HsinChu, Taiwan 300, R.O.C.e-mail: sd9514812.me95g@nctu.edu.tw
Chang-Pin Chou
Department of Mechanical Engineering,
National Chiao Tung University
, HsinChu, Taiwan 300, R.O.C.
Ay Su
Department of Mechanical Engineering,
Yuan Ze University
, Chung-Li, Taiwan 32003, R.O.C.
Jenn-Jiang Hwang
Department of Greenergy Technology,
National University of Tainan
, Tainan 700, Taiwan, R.O.C.J. Fuel Cell Sci. Technol. Apr 2011, 8(2): 025001 (8 pages)
Published Online: November 22, 2010
Article history
Received:
April 10, 2008
Revised:
August 25, 2010
Online:
November 22, 2010
Published:
November 22, 2010
Citation
Wu, S., Chou, C., Su, A., and Hwang, J. (November 22, 2010). "Design and Performance Test of the Direct Methanol Fuel Cell System." ASME. J. Fuel Cell Sci. Technol. April 2011; 8(2): 025001. https://doi.org/10.1115/1.4002582
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