Combined heat and power generation systems accommodating intermediate temperature solid oxide fuel cell (SOFC) modules have been developed by Mitsubishi Materials Corporation and The Kansai Electric Power Co., Inc. High overall efficiency system units are designed in such a way that their output power can be modularized by altering the number of stacks inside the SOFC modules. The seal-less design concept is adopted to build generic stacks made up of stainless steel separators and disk-type planar electrolyte-supported cells. Innovative stack design together with its precise integration with the hot balance of plant components inside the SOFC module requires a number of design iterations supported by carefully planned experiments. In order to achieve improved levels of efficiency and reliability via optimum number of iterative cycles, we believe that the computational techniques offer significant advantages. In this work, a commercial computational fluid dynamics code is employed for solving the conservation of mass, momentum, and energy equations with an additional electrochemical submodel to simulate the coupled multiphysics processes in a generic SOFC stack. This approach proved to be effective in providing necessary guidance for identifying problem areas in the stack design and estimating the stack performance via less expensive numerical experiments. The results of the computational model are also compared with data obtained by experimental measurements.
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e-mail: akbay@mmc.co.jp
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November 2009
This article was originally published in
Journal of Fuel Cell Science and Technology
Research Papers
Computational Fluid Dynamic Analysis of a Seal-Less Solid Oxide Fuel Cell Stack
Taner Akbay,
Taner Akbay
Department of Business Incubation, Central Research Institute,
e-mail: akbay@mmc.co.jp
Mitsubishi Materials Corporation
, Ibaraki 311-0102, Japan
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Norihisa Chitose,
Norihisa Chitose
Department of Business Incubation, Central Research Institute,
Mitsubishi Materials Corporation
, Ibaraki 311-0102, Japan
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Takashi Miyazawa,
Takashi Miyazawa
Department of Business Incubation, Central Research Institute,
Mitsubishi Materials Corporation
, Ibaraki 311-0102, Japan
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Makoto Shibata,
Makoto Shibata
Department of Business Incubation, Central Research Institute,
Mitsubishi Materials Corporation
, Ibaraki 311-0102, Japan
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Futoshi Nishiwaki,
Futoshi Nishiwaki
Energy Use R&D Center,
The Kansai Electric Power Co., Inc.
, Hyogo 661-0974, Japan
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Toru Inagaki
Toru Inagaki
Energy Use R&D Center,
The Kansai Electric Power Co., Inc.
, Hyogo 661-0974, Japan
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Taner Akbay
Department of Business Incubation, Central Research Institute,
Mitsubishi Materials Corporation
, Ibaraki 311-0102, Japane-mail: akbay@mmc.co.jp
Norihisa Chitose
Department of Business Incubation, Central Research Institute,
Mitsubishi Materials Corporation
, Ibaraki 311-0102, Japan
Takashi Miyazawa
Department of Business Incubation, Central Research Institute,
Mitsubishi Materials Corporation
, Ibaraki 311-0102, Japan
Makoto Shibata
Department of Business Incubation, Central Research Institute,
Mitsubishi Materials Corporation
, Ibaraki 311-0102, Japan
Futoshi Nishiwaki
Energy Use R&D Center,
The Kansai Electric Power Co., Inc.
, Hyogo 661-0974, Japan
Toru Inagaki
Energy Use R&D Center,
The Kansai Electric Power Co., Inc.
, Hyogo 661-0974, JapanJ. Fuel Cell Sci. Technol. Nov 2009, 6(4): 041007 (6 pages)
Published Online: August 12, 2009
Article history
Received:
June 13, 2007
Revised:
June 5, 2008
Published:
August 12, 2009
Citation
Akbay, T., Chitose, N., Miyazawa, T., Shibata, M., Nishiwaki, F., and Inagaki, T. (August 12, 2009). "Computational Fluid Dynamic Analysis of a Seal-Less Solid Oxide Fuel Cell Stack." ASME. J. Fuel Cell Sci. Technol. November 2009; 6(4): 041007. https://doi.org/10.1115/1.3081464
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