Criticality safety analysis for eccentric loading of fuel assemblies in spent nuclear fuel cask
Eccentric fuel loading is one of the studies performed in a spent nuclear fuel criticality safety analysis. Several studies have been performed to investigate the effect of increasing reactivity on eccentric loading and random displacement in spent nuclear fuel pools; However, studies within spent n...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-02-01
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| Series: | Nuclear Engineering and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1738573324004704 |
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| author | Seok Geun Cho Keon Il Cha Kyoon Ho Cha |
| author_facet | Seok Geun Cho Keon Il Cha Kyoon Ho Cha |
| author_sort | Seok Geun Cho |
| collection | DOAJ |
| description | Eccentric fuel loading is one of the studies performed in a spent nuclear fuel criticality safety analysis. Several studies have been performed to investigate the effect of increasing reactivity on eccentric loading and random displacement in spent nuclear fuel pools; However, studies within spent nuclear fuel casks have not been performed. Therefore, this study investigates the effects of eccentric loading and random displacement of fuel assemblies on the reactivity in the spent nuclear fuel cask. The spent nuclear fuel cask and PLUS7 fuel are modeled using the MCNP code to investigate these effects. The result indicates that in eccentric cases, the k-effective values exceed those observed in the normal case. Also, several random displacement cases show k-effective values that exceed the normal case. These results differ from previous studies on eccentric loading in the spent fuel pool. It supports the necessity of considering both eccentric loading and random displacement in the criticality safety analysis in spent nuclear fuel cask. The increase in reactivity due to eccentric loading and random displacement of fuel assemblies within casks might be considered in criticality safety analysis and regarded as an uncertainty. |
| format | Article |
| id | doaj-art-bbe4e6fe893a446aa3ca20b4292bc0ae |
| institution | Kabale University |
| issn | 1738-5733 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Engineering and Technology |
| spelling | doaj-art-bbe4e6fe893a446aa3ca20b4292bc0ae2025-01-31T05:11:10ZengElsevierNuclear Engineering and Technology1738-57332025-02-01572103221Criticality safety analysis for eccentric loading of fuel assemblies in spent nuclear fuel caskSeok Geun Cho0Keon Il Cha1Kyoon Ho Cha2Nuclear Engineering Dept., Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul, 143-747, Republic of KoreaNuclear Engineering Dept., Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul, 143-747, Republic of KoreaCorresponding author.; Nuclear Engineering Dept., Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul, 143-747, Republic of KoreaEccentric fuel loading is one of the studies performed in a spent nuclear fuel criticality safety analysis. Several studies have been performed to investigate the effect of increasing reactivity on eccentric loading and random displacement in spent nuclear fuel pools; However, studies within spent nuclear fuel casks have not been performed. Therefore, this study investigates the effects of eccentric loading and random displacement of fuel assemblies on the reactivity in the spent nuclear fuel cask. The spent nuclear fuel cask and PLUS7 fuel are modeled using the MCNP code to investigate these effects. The result indicates that in eccentric cases, the k-effective values exceed those observed in the normal case. Also, several random displacement cases show k-effective values that exceed the normal case. These results differ from previous studies on eccentric loading in the spent fuel pool. It supports the necessity of considering both eccentric loading and random displacement in the criticality safety analysis in spent nuclear fuel cask. The increase in reactivity due to eccentric loading and random displacement of fuel assemblies within casks might be considered in criticality safety analysis and regarded as an uncertainty.http://www.sciencedirect.com/science/article/pii/S1738573324004704Criticality safety analysisSpent nuclear fuel caskRandom displacementEccentric loadingReactivity |
| spellingShingle | Seok Geun Cho Keon Il Cha Kyoon Ho Cha Criticality safety analysis for eccentric loading of fuel assemblies in spent nuclear fuel cask Nuclear Engineering and Technology Criticality safety analysis Spent nuclear fuel cask Random displacement Eccentric loading Reactivity |
| title | Criticality safety analysis for eccentric loading of fuel assemblies in spent nuclear fuel cask |
| title_full | Criticality safety analysis for eccentric loading of fuel assemblies in spent nuclear fuel cask |
| title_fullStr | Criticality safety analysis for eccentric loading of fuel assemblies in spent nuclear fuel cask |
| title_full_unstemmed | Criticality safety analysis for eccentric loading of fuel assemblies in spent nuclear fuel cask |
| title_short | Criticality safety analysis for eccentric loading of fuel assemblies in spent nuclear fuel cask |
| title_sort | criticality safety analysis for eccentric loading of fuel assemblies in spent nuclear fuel cask |
| topic | Criticality safety analysis Spent nuclear fuel cask Random displacement Eccentric loading Reactivity |
| url | http://www.sciencedirect.com/science/article/pii/S1738573324004704 |
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