| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2026-05-01 |
| タイトル |
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タイトル |
Experimental study on ignition conditions and remote extinguishment method for Li fire in fusion neutron source |
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言語 |
en |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
Kenjo Shunsuke
Oyaizu Makoto
Kazuhiro Obata
Ryota Sakamoto
Ochiai Kentaro
Sato Satoshi
Masuda Kai
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
Safety and operational availability of the liquid lithium (Li) target systems in the International Fusion Material Irradiation Facility (IFMIF)-like fusion neutron source (FNS) must be ensured by preventing ignition and first-aid extinguishment in the event of a Li fire. The objectives of this study are to experimentally evaluate the ignition conditions of Li—particularly its ignition temperature—and to investigate the effectiveness of the argon gas supply as a remote Li fire extinguishment method. Six heating experiments were conducted using Li samples weighing between 0.33 and 0.48 g under wet-air conditions with dry air supplied through a water bubbler. A thermocouple was installed in the chamber to directly measure the temperature of the Li samples. The ignition temperatures were measured as 317–389 °C (approximately 300–400 °C), which is higher than the liquid Li temperature in the FNS (250–300 °C). The small-scale Li fire extinguishment experiments with argon gas demonstrated the successful suppression and extinguishment of the Li fire. This study identified that the crucial design requirements for effective remote extinguishment in the event of a Li fire in the FNS Li loop cell are compartmentalization of the cell floor and installation of multiple argon gas supply lines at the bottom parts of the cell. |
| 書誌情報 |
Fusion Engineering and Design
巻 228,
号 115778,
発行日 2026-07
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| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
10.1016/j.fusengdes.2026.115778 |
