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Solid oxide fuel cell interconnect design optimization considering the thermal stresses
The mechanical failure of solid oxide fuel cell (SOFC) components may cause cracks with consequences such as gas leakage, structure instability and reduction of cell lifetime. A comprehensive 3D model of the thermal stresses of an anode-supported planar SOFC is presented in this work. The main objec...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Science China Press
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5002044/ https://www.ncbi.nlm.nih.gov/pubmed/27635282 http://dx.doi.org/10.1007/s11434-016-1146-3 |
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author | Xu, Min Li, Tingshuai Yang, Ming Andersson, Martin |
author_facet | Xu, Min Li, Tingshuai Yang, Ming Andersson, Martin |
author_sort | Xu, Min |
collection | PubMed |
description | The mechanical failure of solid oxide fuel cell (SOFC) components may cause cracks with consequences such as gas leakage, structure instability and reduction of cell lifetime. A comprehensive 3D model of the thermal stresses of an anode-supported planar SOFC is presented in this work. The main objective of this paper is to get an interconnect optimized design by evaluating the thermal stresses of an anode-supported SOFC for different designs, which would be a new criterion for interconnect design. The model incorporates the momentum, mass, heat, ion and electron transport, as well as steady-state mechanics. Heat from methane steam reforming and water–gas shift reaction were considered in our model. The results examine the relationship between the interconnect structures and thermal stresses in SOFC at certain mechanical properties. A wider interconnect of the anode side lowers the stress obviously. The simulation results also indicate that thermal stress of coflow design is smaller than that of counterflow, corresponding to the temperature distribution. This study shows that it is possible to design interconnects for an optimum thermal stress performance of the cell. |
format | Online Article Text |
id | pubmed-5002044 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Science China Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-50020442016-09-13 Solid oxide fuel cell interconnect design optimization considering the thermal stresses Xu, Min Li, Tingshuai Yang, Ming Andersson, Martin Sci Bull (Beijing) Article The mechanical failure of solid oxide fuel cell (SOFC) components may cause cracks with consequences such as gas leakage, structure instability and reduction of cell lifetime. A comprehensive 3D model of the thermal stresses of an anode-supported planar SOFC is presented in this work. The main objective of this paper is to get an interconnect optimized design by evaluating the thermal stresses of an anode-supported SOFC for different designs, which would be a new criterion for interconnect design. The model incorporates the momentum, mass, heat, ion and electron transport, as well as steady-state mechanics. Heat from methane steam reforming and water–gas shift reaction were considered in our model. The results examine the relationship between the interconnect structures and thermal stresses in SOFC at certain mechanical properties. A wider interconnect of the anode side lowers the stress obviously. The simulation results also indicate that thermal stress of coflow design is smaller than that of counterflow, corresponding to the temperature distribution. This study shows that it is possible to design interconnects for an optimum thermal stress performance of the cell. Science China Press 2016-07-20 2016 /pmc/articles/PMC5002044/ /pubmed/27635282 http://dx.doi.org/10.1007/s11434-016-1146-3 Text en © Science China Press and Springer-Verlag Berlin Heidelberg 2016 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. |
spellingShingle | Article Xu, Min Li, Tingshuai Yang, Ming Andersson, Martin Solid oxide fuel cell interconnect design optimization considering the thermal stresses |
title | Solid oxide fuel cell interconnect design optimization considering the thermal stresses |
title_full | Solid oxide fuel cell interconnect design optimization considering the thermal stresses |
title_fullStr | Solid oxide fuel cell interconnect design optimization considering the thermal stresses |
title_full_unstemmed | Solid oxide fuel cell interconnect design optimization considering the thermal stresses |
title_short | Solid oxide fuel cell interconnect design optimization considering the thermal stresses |
title_sort | solid oxide fuel cell interconnect design optimization considering the thermal stresses |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5002044/ https://www.ncbi.nlm.nih.gov/pubmed/27635282 http://dx.doi.org/10.1007/s11434-016-1146-3 |
work_keys_str_mv | AT xumin solidoxidefuelcellinterconnectdesignoptimizationconsideringthethermalstresses AT litingshuai solidoxidefuelcellinterconnectdesignoptimizationconsideringthethermalstresses AT yangming solidoxidefuelcellinterconnectdesignoptimizationconsideringthethermalstresses AT anderssonmartin solidoxidefuelcellinterconnectdesignoptimizationconsideringthethermalstresses |