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

Q. Sun; Meng Ni

doi:10.1149/06801.2317ecst

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

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

6 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 language	English
Title of host publication	Solid Oxide Fuel Cells 14, SOFC 2015
Publisher	Electrochemical Society Inc.
Pages	2317-2338
Number of pages	22
Volume	68
Edition	1
ISBN (Electronic)	9781607685395
DOIs	https://doi.org/10.1149/06801.2317ecst
Publication status	Published - 1 Jan 2015
Event	14th 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 2015 → 31 Jul 2015

Conference

Conference	14th 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/Territory	United Kingdom
City	Glasgow
Period	26/07/15 → 31/07/15

ASJC Scopus subject areas

General Engineering

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10.1149/06801.2317ecst

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

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.",

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Sun, Q & Ni, M 2015, Three-dimensional modeling of internal reforming SOFC with a focus on the interconnect size effect. in Solid Oxide Fuel Cells 14, SOFC 2015. 1 edn, vol. 68, Electrochemical Society Inc., pp. 2317-2338, 14th 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, 26/07/15. https://doi.org/10.1149/06801.2317ecst

Three-dimensional modeling of internal reforming SOFC with a focus on the interconnect size effect. / Sun, Q.; Ni, Meng.
Solid Oxide Fuel Cells 14, SOFC 2015. Vol. 68 1. ed. Electrochemical Society Inc., 2015. p. 2317-2338.

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

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AB - 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.

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

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