Symbolic Analysis of Multi-Stage Electrochemical Oxidation for Enhancement of Electric Efficiency of SOFCs

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

SOFCs have the solid-state ceramic construction and operate at high-temperatures, with flexibility in fuel choice, high efficiency, stability, and reliability. The most attractive characteristics of SOFCs should be high fuel-to-electricity conversion efficiencies of as high as 50 to 60 percent LHV. For further improving the electrical efficiencies, preceding studies on multi-stage electrochemical oxidation with SOFCs have been reported. However, there are many parameters for the multi-stage oxidation, and effects of the parameters on the efficiency remains to be identified. We have investigated the multi-stage oxidation by using a symbolic analysis method. In the case of n-stage electrochemical oxidation, the fuel utilization ratio in the individual stage was found to decrease with increasing the n value at a fixed fuel utilization ratio of an entire system, resulting in the enhancement of robustness against the operation at a high fuel utilization ratio of the entire system as well as against a gas-leakage.

Original languageEnglish
Title of host publicationCeramic Transactions
PublisherWiley-Blackwell
Pages41-46
Number of pages6
Volume255
ISBN (Electronic)9781119234531
ISBN (Print)9781119234487
DOIs
Publication statusPublished - May 31 2016

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Electrochemical oxidation
Solid oxide fuel cells (SOFC)
Oxidation
Leakage (fluid)
Conversion efficiency
Electricity
Gases
Temperature

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Materials Science(all)

Cite this

Symbolic Analysis of Multi-Stage Electrochemical Oxidation for Enhancement of Electric Efficiency of SOFCs. / Matsuzaki, Y.; Tachikawa, Yuya; Hatae, T.; Matsumoto, Hiroshige; Taniguchi, Shunsuke; Sasaki, Kazunari.

Ceramic Transactions. Vol. 255 Wiley-Blackwell, 2016. p. 41-46.

Research output: Chapter in Book/Report/Conference proceedingChapter

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