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Influence of Interface Morphology on the Thermal Stress Distribution of SOFC under Inhomogeneous Temperature Field

Author

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  • Jiamiao Xie

    (School of Aerospace Engineering, North University of China, Taiyuan 030051, China)

  • Jingyang Li

    (School of Aerospace Engineering, North University of China, Taiyuan 030051, China
    Beijing Tsing Aero Armament Technology Co., Ltd., Beijing 100190, China)

  • Wenqian Hao

    (School of Aerospace Engineering, North University of China, Taiyuan 030051, China)

  • Fenghui Wang

    (Bi-Inspired and Advanced Energy Research Center, Department of Engineering Mechanics, Northwestern Polytechnical University, Xi’an 710129, China)

Abstract

Excessive thermal stress can cause the failure of a solid oxide fuel cell (SOFC), and an inhomogeneous temperature field is one of the reasons for thermal stress in the cell. In the present work, the bi-dimensional thermo-mechanical coupling models of SOFCs with different interface morphologies including planar and corrugated cells are proposed. The temperature distribution of two types of cells under the action of heat conduction is analyzed. Further, the inhomogeneous temperature field caused by gas flow is used as the thermal load to compare the thermal stress distribution of planar and corrugated cells. The influence of interface morphology on the temperature distribution, stress distribution and the contribution of the temperature gradient to stress distribution are investigated. This research provides a reference for reducing thermal stress and improving the stability of SOFC.

Suggested Citation

  • Jiamiao Xie & Jingyang Li & Wenqian Hao & Fenghui Wang, 2023. "Influence of Interface Morphology on the Thermal Stress Distribution of SOFC under Inhomogeneous Temperature Field," Energies, MDPI, vol. 16(21), pages 1-13, October.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:21:p:7349-:d:1271056
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    References listed on IDEAS

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    1. Zeng, Zezhi & Qian, Yuping & Zhang, Yangjun & Hao, Changkun & Dan, Dan & Zhuge, Weilin, 2020. "A review of heat transfer and thermal management methods for temperature gradient reduction in solid oxide fuel cell (SOFC) stacks," Applied Energy, Elsevier, vol. 280(C).
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