A comprehensive numerical model of an indirect internal reforming tubular Solid Oxide Fuel Cell (IIR-T-SOFC) has been developed. Two-dimensional axisymmetry of the velocity, temperature, and mass transfer fields was assumed in the model, but accommodating the peripheral nonuniformity of electric potential and electric current fields in the tubular cell for the case with internal reforming and electrochemical reactions. By using the developed model, it was examined how the thermal field and power generation characteristics of the cell are affected by gas inlet conditions and filling pattern of the reforming catalyst inside the fuel feed tube. In particular, optimization of the catalyst distribution pattern was demonstrated to be effective in the reduction of the maximum temperature and temperature gradient, in the mitigation of the possible appearance of a hot spot and therefore in making the life of a fuel cell longer with little loss of the power generation performance of the cell.
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e-mail: iwai@mech.kyoto-u.ac.jp
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February 2006
This article was originally published in
Journal of Fuel Cell Science and Technology
Research Papers
Comprehensive Numerical Modeling and Analysis of a Cell-Based Indirect Internal Reforming Tubular SOFC
Takafumi Nishino,
Takafumi Nishino
Department of Mechanical Engineering,
Kyoto University
, Kyoto, 606-8501, Japan
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Hiroshi Iwai,
Hiroshi Iwai
Department of Mechanical Engineering,
e-mail: iwai@mech.kyoto-u.ac.jp
Kyoto University
, Kyoto, 606-8501, Japan
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Kenjiro Suzuki
Kenjiro Suzuki
Department of Machinery and Control Systems,
e-mail: ksuzuki@sic.shibaura-it.ac.jp
Shibaura Institute of Technology
, Saitama, 337-8570, Japan
Search for other works by this author on:
Takafumi Nishino
Department of Mechanical Engineering,
Kyoto University
, Kyoto, 606-8501, Japan
Hiroshi Iwai
Department of Mechanical Engineering,
Kyoto University
, Kyoto, 606-8501, Japane-mail: iwai@mech.kyoto-u.ac.jp
Kenjiro Suzuki
Department of Machinery and Control Systems,
Shibaura Institute of Technology
, Saitama, 337-8570, Japane-mail: ksuzuki@sic.shibaura-it.ac.jp
J. Fuel Cell Sci. Technol. Feb 2006, 3(1): 33-44 (12 pages)
Published Online: February 1, 2006
Citation
Nishino, T., Iwai, H., and Suzuki, K. (February 1, 2006). "Comprehensive Numerical Modeling and Analysis of a Cell-Based Indirect Internal Reforming Tubular SOFC." ASME. J. Fuel Cell Sci. Technol. February 2006; 3(1): 33–44. https://doi.org/10.1115/1.2133804
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