Concepts of heat dissipation of a disposal canister and its computational analysis
The stability of engineered barriers in high-level radioactive waste disposal systems can be influenced by the decay heat generated by the waste. This study focuses on the thermal analysis of various canister designs to effectively lower the maximum temperature of the engineered barrier. A numerical...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-11-01
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| Series: | Nuclear Engineering and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1738573323003558 |
| _version_ | 1797653661220864000 |
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| author | Minseop Kim Minsoo Lee Jinseop Kim Seok Yoon |
| author_facet | Minseop Kim Minsoo Lee Jinseop Kim Seok Yoon |
| author_sort | Minseop Kim |
| collection | DOAJ |
| description | The stability of engineered barriers in high-level radioactive waste disposal systems can be influenced by the decay heat generated by the waste. This study focuses on the thermal analysis of various canister designs to effectively lower the maximum temperature of the engineered barrier. A numerical model was developed and employed to investigate the heat dissipation potential of copper rings placed across the buffer. Various canister designs incorporating copper rings were presented, and numerical analysis was performed to identify the design with the most significant temperature reduction effect. The results confirmed that the temperature of the buffer material was effectively lowered with an increase in the number of copper rings penetrating the buffer. Parametric studies were also conducted to analyze the impact of technical gaps, copper thickness, and collar height on the temperature reduction. The numerical model revealed that the presence of gaps between the components of the engineered barrier significantly increased the buffer temperature. Furthermore, the reduction in buffer temperature varied depending on the location of the gap and collar. The methods proposed in this study for reducing the buffer temperature hold promise for contributing to cost reduction in radioactive waste disposal. |
| first_indexed | 2024-03-11T16:47:50Z |
| format | Article |
| id | doaj.art-00200c544fd9423b8f26ea0b5a62a7cb |
| institution | Directory Open Access Journal |
| issn | 1738-5733 |
| language | English |
| last_indexed | 2024-03-11T16:47:50Z |
| publishDate | 2023-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Engineering and Technology |
| spelling | doaj.art-00200c544fd9423b8f26ea0b5a62a7cb2023-10-22T04:48:31ZengElsevierNuclear Engineering and Technology1738-57332023-11-01551141734180Concepts of heat dissipation of a disposal canister and its computational analysisMinseop Kim0Minsoo Lee1Jinseop Kim2Seok Yoon3Research Center for Spent Nuclear Fuel Storage and Disposal, Korea Atomic Energy Research Institute, Daejeon, 34057, Republic of KoreaCorresponding author.; Research Center for Spent Nuclear Fuel Storage and Disposal, Korea Atomic Energy Research Institute, Daejeon, 34057, Republic of KoreaResearch Center for Spent Nuclear Fuel Storage and Disposal, Korea Atomic Energy Research Institute, Daejeon, 34057, Republic of KoreaResearch Center for Spent Nuclear Fuel Storage and Disposal, Korea Atomic Energy Research Institute, Daejeon, 34057, Republic of KoreaThe stability of engineered barriers in high-level radioactive waste disposal systems can be influenced by the decay heat generated by the waste. This study focuses on the thermal analysis of various canister designs to effectively lower the maximum temperature of the engineered barrier. A numerical model was developed and employed to investigate the heat dissipation potential of copper rings placed across the buffer. Various canister designs incorporating copper rings were presented, and numerical analysis was performed to identify the design with the most significant temperature reduction effect. The results confirmed that the temperature of the buffer material was effectively lowered with an increase in the number of copper rings penetrating the buffer. Parametric studies were also conducted to analyze the impact of technical gaps, copper thickness, and collar height on the temperature reduction. The numerical model revealed that the presence of gaps between the components of the engineered barrier significantly increased the buffer temperature. Furthermore, the reduction in buffer temperature varied depending on the location of the gap and collar. The methods proposed in this study for reducing the buffer temperature hold promise for contributing to cost reduction in radioactive waste disposal.http://www.sciencedirect.com/science/article/pii/S1738573323003558Bentonite bufferDisposal canisterDecay heatHeat dissipationHeat transferCopper |
| spellingShingle | Minseop Kim Minsoo Lee Jinseop Kim Seok Yoon Concepts of heat dissipation of a disposal canister and its computational analysis Nuclear Engineering and Technology Bentonite buffer Disposal canister Decay heat Heat dissipation Heat transfer Copper |
| title | Concepts of heat dissipation of a disposal canister and its computational analysis |
| title_full | Concepts of heat dissipation of a disposal canister and its computational analysis |
| title_fullStr | Concepts of heat dissipation of a disposal canister and its computational analysis |
| title_full_unstemmed | Concepts of heat dissipation of a disposal canister and its computational analysis |
| title_short | Concepts of heat dissipation of a disposal canister and its computational analysis |
| title_sort | concepts of heat dissipation of a disposal canister and its computational analysis |
| topic | Bentonite buffer Disposal canister Decay heat Heat dissipation Heat transfer Copper |
| url | http://www.sciencedirect.com/science/article/pii/S1738573323003558 |
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