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A modeling study of the chemical reactions of beryllium/beryllide pebbles with steam for hydrogen safety design of fusion DEMO
https://repo.qst.go.jp/records/66527
https://repo.qst.go.jp/records/665277bd796f5-e2ff-4ac7-a03e-5070b14e05c4
Item type | 会議発表用資料 / Presentation(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2017-11-28 | |||||
タイトル | ||||||
タイトル | A modeling study of the chemical reactions of beryllium/beryllide pebbles with steam for hydrogen safety design of fusion DEMO | |||||
言語 | ||||||
言語 | jpn | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_c94f | |||||
資源タイプ | conference object | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
中村, 誠
× 中村, 誠× 金, 宰煥× 中道, 勝× 染谷, 洋二× 飛田, 健次× 坂本, 宜照× 中村 誠× 金 宰煥× 中道 勝× 染谷 洋二× 飛田 健次× 坂本 宜照 |
|||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Water-cooled pebble-bed (WCPB) blanket, in which beryllium/beryllide in a pebble form is used, is one of blanket concepts based on present or near-term technology for fusion reactor. Combination use of water, as coolant, and beryllium/beryllide, as neutron multiplier, may pose a critical safety problem, i.e. the chemical reactivity of the beryllium/beryllide pebble and the hazard of the reaction-produced hydrogen. We present a new phenomenological model of the reaction behaviors of the beryllium/beryllide pebble with the steam. We have developed a code PSYCHE to numerically solve the model equations. The simulation results have been found to agree with the experimentally observed amount of the reaction-produced hydrogen. We also show a safety analysis of the transient behavior of the Be and Be12Ti pebbles in an in-box LOCA, i.e. loss-of-coolant accident in a blanket box. | |||||
会議概要(会議名, 開催地, 会期, 主催者等) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Plasma Conference 2017 (PLASMA2017) | |||||
発表年月日 | ||||||
日付 | 2017-11-23 | |||||
日付タイプ | Issued |