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The electrochemical cell temperature estimation of micro-tubular SOFCs during the power generation

Author:
S. Hashimoto   H. Nishino   Y. Liu   K. Asano   M. Mori   Y. Funahashi   Y. Fujishiro  


Journal:
Journal of Power Sources


Issue Date:
2008


Abstract(summary):

In this study, new temperature monitoring method for solid oxide fuel cells (SOFCs) was proposed, and the demonstration using micro-tubular SOFCs has done. The fabricated micro-tubular SOFCs were operated under the two different conditions, and polarization during the power generation was measured. The cell resistance as a function temperature was also measured. Based on the temperature dependence of cell resistance and the measured ohmic drop during the power generation, the cell temperature was estimated. The estimated cell temperature clearly depended on operation condition and increased with increasing of the current density. The estimated cell temperature was also in nearly proportion to the temperature which was measured by a thermocouple, and it was conformed that this temperature monitoring method by electrochemical technique certainly functioned.


Page:
244-250


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