Journal
JOURNAL OF POWER SOURCES
Volume 243, Issue -, Pages 913-918Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2013.06.096
Keywords
Planar solid oxide fuel cell; Bonded compliant seal; Creep; Thermal stress
Funding
- National Natural Science Foundation of China [51105380]
- Doctoral Program of Higher Education of China [20100133120008]
- Natural Science Foundation of Shandong Province [ZR2010AQ002]
- Fundamental Research Funds for the Central Universities [12CX02006A]
- Key Laboratory of Pressure System and Safety (MOE), East China University of Science and Technology
Ask authors/readers for more resources
Solid oxide fuel cell (SOFC) requires good sealant because it works in harsh conditions (high temperature, thermal cycle, oxidative and reducing gas environments). Bonded compliant seal (BCS) is a new sealing method for planar SOFC. It uses a thin foil metal to bond the window frame and cell, achieving the seal between window frame and cell. At high temperature, a comprehensive evaluation of its creep strength is essential for the adoption of BCS design. In order to characterize the creep behavior, the creep induced by thermal stresses in SOFC with BCS design is simulated by finite element method. The results show that the foil is compressed and large thermal stresses are generated. The initial peak thermal stress is located in the thin foil because the foil acts as a spring stores the thermal stresses by elastic and plastic deformation in itself. Serving at high temperature, initial thermal displacement is partially recovered because of the creep relaxation, which becomes a new discovered advantage for BCS design. It predicts that the failures are likely to happen in the middle of the cell edge and BNi-2 filler metal, because the maximum residual displacement and creep strain are located. Crown Copyright (C) 2013 Published by Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available