TY - GEN
T1 - FAST DESIGN AND MANUFACTURED ON COMPLEX FLOW CHANNEL BY RAPID PROTOTYPING FOR AIR-BREATHING POLYMER ELECTROLYTE MEMBRANE FUEL CELLS
AU - Lai, Wei Hsiang
AU - Chen, Cheng Yu
AU - Chou, Ming Chang
N1 - Funding Information:
This research is supported by National Science Council, Taiwan with grant no. NSC 94-2623-7-006-010-ET; and the authors also appreciate Prof. M. C. Yang in Chemical Engineering Department, who provide MEA for DMFC, and Dr. Weng and his colleague in Material & Electro-Optics Research Division of Chung-Shan Institute of Science and Technology who kindly provide new MEAs for PEMFC.
Publisher Copyright:
© 2006 by ASME.
PY - 2006
Y1 - 2006
N2 - The miniature and air-breathing fuel cell has become the globally major design concepts of fuel cell development recently. In this paper, the authors used 3-D drafting software for fast design and utilize rapid prototyping (RP) technology to accelerate the prototype development of new stack designs and optimize the assembly method. A fast design and convenient manufacture tool, i.e., rapid prototyping, has been first successfully applied to the fabrication of the complicated flow channels of both DMFC and PEMFC in this paper. The honeycomb shape methanol reservoir and honeycomb cathode structure design of DMFC and a complex flow distributor design of mono-polar PEMFC stack, which are almost impossibly manufactured by traditional CNC manufacturing, is fabricated by rapid prototyping technology and illustrated for the extraordinary advantages of RP technology. This paper shows that the fast design and manufacture characteristics are more important for the feasibility study of a complicated structure and any new design ideas. Although the performance of air-breathing pseudo-polar DMFC is only 2.16 mW/cm2 in peak power density by using 50% of hydrophobic carbon paper; this poor performance is resort to the MEA of DMFC is not well prepared. The other example of the power density of 188 mW/cm2 (at 0.425 V) in parallel-connection and 123mW/cm2 (at 4.25V) in serial-connection for the air-breathing mono-polar PEMFC stack are achieved. The performance of the stack is close to the state-of-the-art comparing to recently published literatures [6-9].
AB - The miniature and air-breathing fuel cell has become the globally major design concepts of fuel cell development recently. In this paper, the authors used 3-D drafting software for fast design and utilize rapid prototyping (RP) technology to accelerate the prototype development of new stack designs and optimize the assembly method. A fast design and convenient manufacture tool, i.e., rapid prototyping, has been first successfully applied to the fabrication of the complicated flow channels of both DMFC and PEMFC in this paper. The honeycomb shape methanol reservoir and honeycomb cathode structure design of DMFC and a complex flow distributor design of mono-polar PEMFC stack, which are almost impossibly manufactured by traditional CNC manufacturing, is fabricated by rapid prototyping technology and illustrated for the extraordinary advantages of RP technology. This paper shows that the fast design and manufacture characteristics are more important for the feasibility study of a complicated structure and any new design ideas. Although the performance of air-breathing pseudo-polar DMFC is only 2.16 mW/cm2 in peak power density by using 50% of hydrophobic carbon paper; this poor performance is resort to the MEA of DMFC is not well prepared. The other example of the power density of 188 mW/cm2 (at 0.425 V) in parallel-connection and 123mW/cm2 (at 4.25V) in serial-connection for the air-breathing mono-polar PEMFC stack are achieved. The performance of the stack is close to the state-of-the-art comparing to recently published literatures [6-9].
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U2 - 10.1115/FUELCELL2006-97275
DO - 10.1115/FUELCELL2006-97275
M3 - Conference contribution
AN - SCOPUS:85148239936
T3 - ASME 2006 4th International Conference on Fuel Cell Science, Engineering and Technology, FUELCELL 2006
SP - 1209
EP - 1216
BT - ASME 2006 4th International Conference on Fuel Cell Science, Engineering and Technology, FUELCELL 2006
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 2006 4th International Conference on Fuel Cell Science, Engineering and Technology, FUELCELL 2006
Y2 - 19 June 2006 through 21 June 2006
ER -
