| Project/Area Number |
25630421
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Nuclear fusion studies
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| Research Institution | Kyushu University |
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Principal Investigator |
MATSUURA Hideaki 九州大学, 工学(系)研究科(研究院), 准教授 (50238961)
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| Co-Investigator(Kenkyū-buntansha) |
KATAYAMA Kazunari 九州大学, 総合理工学研究院, 准教授 (90380708)
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| Co-Investigator(Renkei-kenkyūsha) |
GOTO Minoru 日本原子力研究開発機構, 原子力水素・熱利用研究センター, 研究副主幹 (60414546)
NAKAGAWA Shigeaki 日本原子力研究開発機構, 原子力水素・熱利用研究センター, 研究主幹 (40414544)
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| Research Collaborator |
NAKAYA Hiroyuki
KUBO Kotaro
KAWAMOTO Yasuko
KORA Kazuki
NAGASUMI Satoru
USHIDA Hiroki
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Keywords | 高温ガス炉 / トリチウム / リチウム装荷法 / 核融合炉 / 被覆粒子 / トリチウム透過係数 / リチウム装荷用ロッド / 核融合炉燃料 |
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| Outline of Final Research Achievements |
An optimal Li-loading method into high-temperature gas-cooled reactor for tritium production is studied. From the viewpoint of minimizing tritium outflow from the Li-loading region and increasing tritium production, a rod-type Li loading method was proposed. Hydrogen permeation experiments in commercial alumina tubes were conducted and hydrogen permeability was evaluated. Using the obtained data, Monte-Carlo neutron transport and tritium diffusion simulations were made for gas turbine high-temperature reactor of 300 MW electrical nominal capacity (GTHTR300) with 600 MW thermal output. It was shown that almost 500 g of tritium could be produced using the above loading method over a 180-day operation. Under such conditions 4-5 g of tritium outflowed from the cladding tube into the coolant. According to the previous analysis data, the possibility that the outflowed tritium can be reduced 1/10 to 1/100 by adopting Zirconium was also shown.
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