| Project/Area Number |
25420909
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Nuclear engineering
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| Research Institution | Kyushu University |
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Principal Investigator |
MORITA Koji 九州大学, 工学(系)研究科(研究院), 教授 (40311849)
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| Co-Investigator(Kenkyū-buntansha) |
MATSUMOTO Tatsuya 九州大学, 大学院工学研究院, 助教 (90325514)
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| Co-Investigator(Renkei-kenkyūsha) |
TOBITA Yoshiharu 日本原子力研究開発機構, 次世代原子力システム研究開発部, 主任研究員 (20421555)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | 高速炉 / 炉心損傷事故 / 燃料デブリベッド / セルフ・レベリング / 数値解析 / 個別要素法 / 実験データベース / 混相流 / 原子炉安全評価 / 崩壊熱除去 / 混相流解析コード |
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| Outline of Final Research Achievements |
The present study focuses on self-leveling behavior of fuel debris bed, which is critical as a dominant factor in the long-term decay heat removal phase after core disruptive accident of fast reactors. A series of experiments, which improve simulated accident conditions such as debris properties, coolant boiling behaviors and so on, was performed to acquire experimental knowledge on self-leveling characteristics. An experimental database was also developed for validation of physical models used in computational tools. Validation of a numerical simulation code based on the particle-grid hybrid method was examined based on the present experimental results.
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