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Numerical Analysis of Thermal Stress for a Stack of Planar Solid Oxide Fuel Cells

Author

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  • Jianmin Zheng

    (Faculty of Maritime and Transportation, Ningbo University, Ningbo 315211, China)

  • Liusheng Xiao

    (Faculty of Maritime and Transportation, Ningbo University, Ningbo 315211, China)

  • Mingtao Wu

    (Faculty of Maritime and Transportation, Ningbo University, Ningbo 315211, China)

  • Shaocheng Lang

    (Faculty of Maritime and Transportation, Ningbo University, Ningbo 315211, China)

  • Zhonggang Zhang

    (Marine Engineering Institute, Jimei University, Xiamen 361021, China)

  • Ming Chen

    (Department of Energy Conversion and Storage, Technical University of Denmark, 2800 Lyngby, Denmark)

  • Jinliang Yuan

    (Faculty of Maritime and Transportation, Ningbo University, Ningbo 315211, China)

Abstract

In this work, a 3D multi-physics coupled model was developed to analyze the temperature and thermal stress distribution in a planar solid oxide fuel cell (SOFC) stack, and then the effects of different flow channels (co-flow, counter-flow and cross-flow) and electrolyte thickness were investigated. The simulation results indicate that the generated power is higher while the thermal stress is lower in the co-flow mode than those in the cross-flow mode. In the cross-flow mode, a gas inlet and outlet arrangement is proposed to increase current density by about 10%. The generated power of the stack increases with a thin electrolyte layer, but the temperature and its gradient of the stack also increase with increase of heat generation. The thermal stress for two typical sealing materials is also studied. The predicted results can be used for design and optimization of the stack structure to achieve lower stress and longer life.

Suggested Citation

  • Jianmin Zheng & Liusheng Xiao & Mingtao Wu & Shaocheng Lang & Zhonggang Zhang & Ming Chen & Jinliang Yuan, 2022. "Numerical Analysis of Thermal Stress for a Stack of Planar Solid Oxide Fuel Cells," Energies, MDPI, vol. 15(1), pages 1-18, January.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:1:p:343-:d:717419
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    References listed on IDEAS

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    1. Xu, Haoran & Chen, Bin & Tan, Peng & Cai, Weizi & He, Wei & Farrusseng, David & Ni, Meng, 2018. "Modeling of all porous solid oxide fuel cells," Applied Energy, Elsevier, vol. 219(C), pages 105-113.
    2. Khazaee, I. & Rava, A., 2017. "Numerical simulation of the performance of solid oxide fuel cell with different flow channel geometries," Energy, Elsevier, vol. 119(C), pages 235-244.
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    Cited by:

    1. Shangzhe Yu & Shidong Zhang & Dominik Schäfer & Roland Peters & Felix Kunz & Rüdiger-A. Eichel, 2023. "Numerical Modeling and Simulation of the Solid Oxide Cell Stacks and Metal Interconnect Oxidation with OpenFOAM," Energies, MDPI, vol. 16(9), pages 1-22, April.
    2. Karol K. Śreniawski & Marcin Moździerz & Grzegorz Brus & Janusz S. Szmyd, 2023. "Transport Phenomena in a Banded Solid Oxide Fuel Cell Stack—Part 2: Numerical Analysis," Energies, MDPI, vol. 16(11), pages 1-21, June.

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