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Numerical Study of H 2 Production and Thermal Stress for Solid Oxide Electrolysis Cells with Various Ribs/Channels

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  • Yingqi Liu

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

  • Liusheng Xiao

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

  • Hao Wang

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

  • Dingrong Ou

    (Hydrogen Energy Research Center, China Southern Power Grid Co., Ltd., Guangzhou 510335, China)

  • Jinliang Yuan

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

Abstract

A fully coupled electro-thermo-mechanical CFD model is developed and applied to illuminate the crucial factors influencing the overall performance of a solid oxide electrolysis cell (SOEC), particularly the configuration and geometry parameters of its inter-connector (IC), comprising ribs and channels. Expanding on a selected width ratio of 4:3, the gradient ribs/channels are further investigated to assess electrochemical and thermo-mechanical performance. It is elucidated that, while maintaining constant maximum temperature and thermal stress levels, employing a non-regular geometry IC with gradient channels may yield a 30% enhancement in hydrogen production. These nuanced explorations illuminate the complex interplay between IC configuration, thermal stresses, and electrolysis efficiency within SOECs.

Suggested Citation

  • Yingqi Liu & Liusheng Xiao & Hao Wang & Dingrong Ou & Jinliang Yuan, 2024. "Numerical Study of H 2 Production and Thermal Stress for Solid Oxide Electrolysis Cells with Various Ribs/Channels," Energies, MDPI, vol. 17(2), pages 1-27, January.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:2:p:510-:d:1322992
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    References listed on IDEAS

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    1. Luo, Yu & Wu, Xiao-yu & Shi, Yixiang & Ghoniem, Ahmed F. & Cai, Ningsheng, 2018. "Exergy analysis of an integrated solid oxide electrolysis cell-methanation reactor for renewable energy storage," Applied Energy, Elsevier, vol. 215(C), pages 371-383.
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