Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/27948
Title: Three-dimensional modeling of internal reforming SOFC with a focus on the interconnect size effect
Authors: Sun, Q
Ni, M 
Issue Date: 2015
Publisher: Electrochemical Society
Source: ECS transactions, 2015, v. 68, no. 1, p. 2317-2338 How to cite?
Journal: ECS transactions 
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.
Description: 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, 26-31 July 2015
URI: http://hdl.handle.net/10397/27948
ISBN: 9781610000000
ISSN: 1938-5862
EISSN: 1938-6737
DOI: 10.1149/06801.2317ecst
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