Experimental investigation of temperature distribution of planar solid oxide fuel cell: Effects of gas flow,power generation,and direct internal reforming |
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| Affiliation: | 1. Department of Aeronautics and Astronautics, Kyoto University, Kyoto, 615-8540, Japan;2. Advanced Energy System R&D Div., DENSO CORPORATION, Aichi, 448-8661, Japan;3. Department of Mechanical Engineering and Science, Kyoto University, Kyoto, 615-8540, Japan;1. Curtin University, Kent Street, Bentley, WA 6102, Australia;2. Xinnotec Pty. Ltd., Kew, Victoria 3101, Australia;1. Department of Mechanical Engineering and Science, Kyoto University, Nishikyo-ku, Kyoto 615-8540, Japan;2. Department of Aeronautics and Astronautics, Kyoto University, Nishikyo-ku, Kyoto 615-8540 Japan;1. Mechanical and Materials Engineering, Queen''s University, Kingston, ON, K7L 3N6, Canada;2. Institute of Energy and Climate Research, IEK-3, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany;3. Institute of Energy and Climate Research, IEK-9, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany;1. Department of Aeronautics and Astronautics, Kyoto University, Nishikyo–ku, Kyoto, 615–8540, Japan;2. Department of Mechanical Engineering and Science, Kyoto University, Nishikyo–ku, Kyoto, 615–8540, Japan;1. AGH University of Science and Technology, Department of Energy and Fuels, 30 Mickiewicza Av., 30-059 Krakow, Poland;2. AGH University of Science and Technology, Academic Centre for Materials and Nanotechnology, 30 Mickiewicza Av., 30-059 Krakow, Poland;3. Shibaura Institute of Technology, Department of Machinery and Control Systems, 307 Fukasaku, Minuma-ku, 337-8570 Saitama City, Japan |
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| Abstract: | The temperature distribution of an operating planar solid oxide fuel cell (SOFC) is experimentally investigated under direct internal reforming conditions. An in situ measurement is conducted using a cell holder and an infrared (IR) camera. The effects of the gas flow configuration, exothermic power generation reaction, and endothermic steam–methane reforming reaction are examined at a furnace temperature of 770 °C. The fuel flow and airflow are set to a coflow or counterflow configuration. The heat generation and absorption by the reactions are varied by tuning the average current density and the concentration of methane in the supplied fuel. The maximum value of the local temperature gradient along the cell tends to increase with increasing internal reforming ratio, regardless of the gas flow configuration. From the view point of a small temperature gradient, the counterflow configuration clearly shows better characteristics than that of the coflow, regardless of the internal reforming ratio. |
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| Keywords: | Planar solid oxide fuel cell Direct internal reforming In situ temperature measurement Coflow Counterflow Anode-supported cell |
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