Evaluation of Thermal Stress and Performance for Solid Oxide Electrolysis Cells Employing Graded Fuel Electrodes
An electrochemical reactions coupled multi-physics model is developed and applied to elucidate overall performance and thermal stress distributed in solid oxide electrolysis cells (SOECs) with graded fuel electrodes. Extending the conventional fuel electrode, the effects of various graded parameters...
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| Language: | English |
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2025-05-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/18/11/2790 |
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| author | Fangzheng Liu Liusheng Xiao Ruidong Zhou Qi Liu Jinliang Yuan |
| author_facet | Fangzheng Liu Liusheng Xiao Ruidong Zhou Qi Liu Jinliang Yuan |
| author_sort | Fangzheng Liu |
| collection | DOAJ |
| description | An electrochemical reactions coupled multi-physics model is developed and applied to elucidate overall performance and thermal stress distributed in solid oxide electrolysis cells (SOECs) with graded fuel electrodes. Extending the conventional fuel electrode, the effects of various graded parameters are investigated and discussed in terms of porosity, pore size, and material composition, with the goal of identifying characteristics of the hydrogen production rate and maximum thermal stress. The results show that the application of the graded parameters is able to optimize the gas distribution and to improve reaction kinetics, avoiding local overheating. The generated hydrogen molar fraction is enhanced by 15.6% while the maximum thermal stress is decreased by 5.0% if the graded parameters are applied, while changing the material composition may increase the thermal stress under the same circumstances. These explorations elucidate the complex role of the graded fuel electrodes on the electrolysis and thermomechanical properties of SOECs. |
| format | Article |
| id | doaj-art-aee890de82c94313b511258ca6f076c1 |
| institution | OA Journals |
| issn | 1996-1073 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj-art-aee890de82c94313b511258ca6f076c12025-08-20T02:23:04ZengMDPI AGEnergies1996-10732025-05-011811279010.3390/en18112790Evaluation of Thermal Stress and Performance for Solid Oxide Electrolysis Cells Employing Graded Fuel ElectrodesFangzheng Liu0Liusheng Xiao1Ruidong Zhou2Qi Liu3Jinliang Yuan4Faculty of Maritime and Transportation, Ningbo University, Ningbo 315832, ChinaFaculty of Maritime and Transportation, Ningbo University, Ningbo 315832, ChinaFaculty of Maritime and Transportation, Ningbo University, Ningbo 315832, ChinaFaculty of Maritime and Transportation, Ningbo University, Ningbo 315832, ChinaFaculty of Maritime and Transportation, Ningbo University, Ningbo 315832, ChinaAn electrochemical reactions coupled multi-physics model is developed and applied to elucidate overall performance and thermal stress distributed in solid oxide electrolysis cells (SOECs) with graded fuel electrodes. Extending the conventional fuel electrode, the effects of various graded parameters are investigated and discussed in terms of porosity, pore size, and material composition, with the goal of identifying characteristics of the hydrogen production rate and maximum thermal stress. The results show that the application of the graded parameters is able to optimize the gas distribution and to improve reaction kinetics, avoiding local overheating. The generated hydrogen molar fraction is enhanced by 15.6% while the maximum thermal stress is decreased by 5.0% if the graded parameters are applied, while changing the material composition may increase the thermal stress under the same circumstances. These explorations elucidate the complex role of the graded fuel electrodes on the electrolysis and thermomechanical properties of SOECs.https://www.mdpi.com/1996-1073/18/11/2790solid oxide electrolysis cellgraded structurefuel electrodethermal stressmodel and simulation |
| spellingShingle | Fangzheng Liu Liusheng Xiao Ruidong Zhou Qi Liu Jinliang Yuan Evaluation of Thermal Stress and Performance for Solid Oxide Electrolysis Cells Employing Graded Fuel Electrodes Energies solid oxide electrolysis cell graded structure fuel electrode thermal stress model and simulation |
| title | Evaluation of Thermal Stress and Performance for Solid Oxide Electrolysis Cells Employing Graded Fuel Electrodes |
| title_full | Evaluation of Thermal Stress and Performance for Solid Oxide Electrolysis Cells Employing Graded Fuel Electrodes |
| title_fullStr | Evaluation of Thermal Stress and Performance for Solid Oxide Electrolysis Cells Employing Graded Fuel Electrodes |
| title_full_unstemmed | Evaluation of Thermal Stress and Performance for Solid Oxide Electrolysis Cells Employing Graded Fuel Electrodes |
| title_short | Evaluation of Thermal Stress and Performance for Solid Oxide Electrolysis Cells Employing Graded Fuel Electrodes |
| title_sort | evaluation of thermal stress and performance for solid oxide electrolysis cells employing graded fuel electrodes |
| topic | solid oxide electrolysis cell graded structure fuel electrode thermal stress model and simulation |
| url | https://www.mdpi.com/1996-1073/18/11/2790 |
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