Three-dimensional modeling of internal reforming SOFC with a focus on the interconnect size effect

Q. Sun, Meng Ni

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

4 Citations (Scopus)

Abstract

A three-dimensional (3D) model of methane fed SOFC stack has been developed to investigate interconnect size effect on stack performance. Different from the existing studies on interconnect size effect which only consider hydrogen (H2) as a fuel, we considered direct internal reforming (DIR) of methane and water gas shift reaction (WGSR) in anode. In addition, both H2 and carbon monoxide (CO) are considered as electrochemically active fuel in this model. Parametric simulations are performed to study the geometric effect of interconnect on stack performance. Different from H2 fuel case, the temperature decreases along the gas channel of methane fed SOFC. It is also found that the interconnect rib size has obvious effect on the current density distribution. The results also show that the optimum ratio Ra is 0.3 for stacks with different ratio of the inlet methane to steam, while the optimum ratio is 0.2 for SOFC running on H2.
Original languageEnglish
Title of host publicationSolid Oxide Fuel Cells 14, SOFC 2015
PublisherElectrochemical Society Inc.
Pages2317-2338
Number of pages22
Volume68
Edition1
ISBN (Electronic)9781607685395
DOIs
Publication statusPublished - 1 Jan 2015
Event14th International Symposium on Solid Oxide Fuel Cells, SOFC 2015; held as part of the Electrochemical Society, ECS Conference on Electrochemical Energy Conversion and Storage - Glasgow, United Kingdom
Duration: 26 Jul 201531 Jul 2015

Conference

Conference14th International Symposium on Solid Oxide Fuel Cells, SOFC 2015; held as part of the Electrochemical Society, ECS Conference on Electrochemical Energy Conversion and Storage
Country/TerritoryUnited Kingdom
CityGlasgow
Period26/07/1531/07/15

ASJC Scopus subject areas

  • Engineering(all)

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