Coupled mixed-potential and thermal-hydraulics model for long-term corrosion of copper canisters in deep geological repository
Abstract Canister performance is a major issue for constructing reliable deep geological repositories for storing spent nuclear fuels, and corrosion resistance is main the factor determining canister durability. We developed a 2-D multiphysics model, which can predict both the corrosion rate and pot...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-04-01
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| Series: | npj Materials Degradation |
| Online Access: | https://doi.org/10.1038/s41529-023-00345-6 |
| _version_ | 1797849880575606784 |
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| author | Nakkyu Chae Samuel Park Seungjin Seo Richard I. Foster Heejae Ju Sungyeol Choi |
| author_facet | Nakkyu Chae Samuel Park Seungjin Seo Richard I. Foster Heejae Ju Sungyeol Choi |
| author_sort | Nakkyu Chae |
| collection | DOAJ |
| description | Abstract Canister performance is a major issue for constructing reliable deep geological repositories for storing spent nuclear fuels, and corrosion resistance is main the factor determining canister durability. We developed a 2-D multiphysics model, which can predict both the corrosion rate and potential, for simulating copper canister corrosion in deep geological repositories. We found that canisters corroded through the long-cell action in a deep geological repository, the corrosion was quite limited, and the overall canister durability was around 1.7 million years. Our results demonstrated that copper exhibits sufficient corrosion resistance and that long-cell action-based corrosion cannot severely damage copper canisters. |
| first_indexed | 2024-04-09T18:52:26Z |
| format | Article |
| id | doaj.art-1885f0b69af0448ab7c12d05600f16c7 |
| institution | Directory Open Access Journal |
| issn | 2397-2106 |
| language | English |
| last_indexed | 2024-04-09T18:52:26Z |
| publishDate | 2023-04-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Materials Degradation |
| spelling | doaj.art-1885f0b69af0448ab7c12d05600f16c72023-04-09T11:23:12ZengNature Portfolionpj Materials Degradation2397-21062023-04-017111410.1038/s41529-023-00345-6Coupled mixed-potential and thermal-hydraulics model for long-term corrosion of copper canisters in deep geological repositoryNakkyu Chae0Samuel Park1Seungjin Seo2Richard I. Foster3Heejae Ju4Sungyeol Choi5Department of Nuclear Engineering, Seoul National UniversityDepartment of Nuclear Engineering, Seoul National UniversityDepartment of Nuclear Engineering, Seoul National UniversityNuclear Research Institute for Future Technology and Policy, Seoul National UniversityKorea Atomic Energy Research InstituteDepartment of Nuclear Engineering, Seoul National UniversityAbstract Canister performance is a major issue for constructing reliable deep geological repositories for storing spent nuclear fuels, and corrosion resistance is main the factor determining canister durability. We developed a 2-D multiphysics model, which can predict both the corrosion rate and potential, for simulating copper canister corrosion in deep geological repositories. We found that canisters corroded through the long-cell action in a deep geological repository, the corrosion was quite limited, and the overall canister durability was around 1.7 million years. Our results demonstrated that copper exhibits sufficient corrosion resistance and that long-cell action-based corrosion cannot severely damage copper canisters.https://doi.org/10.1038/s41529-023-00345-6 |
| spellingShingle | Nakkyu Chae Samuel Park Seungjin Seo Richard I. Foster Heejae Ju Sungyeol Choi Coupled mixed-potential and thermal-hydraulics model for long-term corrosion of copper canisters in deep geological repository npj Materials Degradation |
| title | Coupled mixed-potential and thermal-hydraulics model for long-term corrosion of copper canisters in deep geological repository |
| title_full | Coupled mixed-potential and thermal-hydraulics model for long-term corrosion of copper canisters in deep geological repository |
| title_fullStr | Coupled mixed-potential and thermal-hydraulics model for long-term corrosion of copper canisters in deep geological repository |
| title_full_unstemmed | Coupled mixed-potential and thermal-hydraulics model for long-term corrosion of copper canisters in deep geological repository |
| title_short | Coupled mixed-potential and thermal-hydraulics model for long-term corrosion of copper canisters in deep geological repository |
| title_sort | coupled mixed potential and thermal hydraulics model for long term corrosion of copper canisters in deep geological repository |
| url | https://doi.org/10.1038/s41529-023-00345-6 |
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