Real-time electrochemical impedance spectroscopy diagnosis of the solid oxide fuel cell for marine power applications

研究成果: Contribution to journalArticle査読

6 被引用数 (Scopus)

抄録

We have investigated the behavior of an operating solid oxide fuel cell (SOFC) with supplying a simulated syngas to develop diagnosis method of the SOFC for marine power applications fueled with liquefied natural gas (LNG). We analyze the characteristics of a syngas-fueled intermediate temperature microtubular SOFC at 500 C for accelerated deterioration by carbon deposition as a model case by electrochemical impedance spectroscopy (EIS) to in-situ find parameters useful for the real-time diagnosis. EIS analyses are performed by complex nonlinear least squares (CNLS) curve fitting to measured impedance spectra with an equivalent electric circuit model consisting of several resistances and capacitances attributed to the anode and cathode processes as well as Ohmic resistance of the cell. The characteristic changes of those circuit parameters by internal reforming and anode degradation are extracted, showing that they can be used for the real-time diagnosis of operating SOFCs.

本文言語英語
ページ(範囲)2551-2558
ページ数8
ジャーナルHeat and Mass Transfer/Waerme- und Stoffuebertragung
54
8
DOI
出版ステータス出版済み - 8 1 2018

All Science Journal Classification (ASJC) codes

  • 凝縮系物理学
  • 流体および伝熱

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