Thermo-electrochemical and thermal stress analysis for an anode-supported SOFC cell

The main objective of this paper is to evaluate the fuel/oxidant gas distributions as well as thermal stresses of an anode-supported solid oxide fuel cell (SOFC) test cell under different operating conditions. In this study, the commercial computational fluid dynamics (CFD) code Star-CD with es-sofc module is employed to simulate the current–voltage (I–V) characteristics and to provide the temperature field of the cell to the commercial code MARC for further thermal stress analysis. Structural and fluid elements are built by preprocessing codes PATRAN and GRIDGEN, respectively. The simulation results indicate that the cells experience higher principal stresses at lower cell voltages due to a higher local current density and a higher temperature gradient.

[1]  Michel Meunier,et al.  Performance and ageing of an anode-supported SOFC operated in single-chamber conditions , 2006 .

[2]  Zhonghua Lu,et al.  Research on planar SOFC stack , 2002 .

[3]  L. Singheiser,et al.  Failure Probability of Solid Oxide Fuel Cells , 2008 .

[4]  I. Yasuda,et al.  3-D model calculation for planar SOFC , 2001 .

[5]  Lieh-Kwang Chiang,et al.  Thermal stress analysis of a planar SOFC stack , 2007 .

[6]  D. Favrat,et al.  CFD simulation tool for solid oxide fuel cells , 2004 .

[7]  Wei-Mon Yan,et al.  Performance simulation for an anode-supported SOFC using Star-CD code , 2007 .

[8]  Takuto Araki,et al.  Cycle analysis of planar SOFC power generation with serial connection of low and high temperature SOFCs , 2006 .

[9]  Harumi Yokokawa,et al.  Thermal stresses in planar solid oxide fuel cells due to thermal expansion differences , 2002 .

[10]  Y. Inui,et al.  Analytical investigation on cell temperature control method of planar solid oxide fuel cell , 2006 .

[11]  Yoshitaka Inui,et al.  Performance simulation of planar SOFC using mixed hydrogen and carbon monoxide gases as fuel , 2006 .

[12]  M. Khaleel,et al.  A finite element analysis modeling tool for solid oxide fuel cell development: coupled electrochemistry, thermal and flow analysis in MARC® , 2004 .

[13]  Jenn-Jiang Hwang,et al.  Detailed characteristic comparison between planar and MOLB-type SOFCs , 2005 .

[14]  Miriam Kemm,et al.  Steady state and transient thermal stress analysis in planar solid oxide fuel cells , 2005 .

[15]  W. Sawyer,et al.  A study on the friction and wear behavior of PTFE filled with alumina nanoparticles , 2003 .

[16]  M. Khaleel,et al.  Three-dimensional thermo-fluid electrochemical modeling of planar SOFC stacks , 2003 .

[17]  Tsang-Dong Chung,et al.  Integrated thermal engineering analyses with heat transfer at periphery of planar solid oxide fuel cell , 2005 .

[18]  Tetsuo Take,et al.  Simulation analysis of a system combining solid oxide and polymer electrolyte fuel cells , 2004 .

[19]  L. A. Chick,et al.  Rupture testing as a tool for developing planar solid oxide fuel cell seals , 2004 .

[20]  Masayuki Dokiya,et al.  SOFC system and technology , 2002 .