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Influence on moisture and hydrocarbons on conversion rate of tritium in catalytic reactors of fusion-DEMO detritiation system
https://repo.qst.go.jp/records/49280
https://repo.qst.go.jp/records/49280a4f7548a-91cb-414f-8106-d07ae9d6188f
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2018-11-27 | |||||
タイトル | ||||||
タイトル | Influence on moisture and hydrocarbons on conversion rate of tritium in catalytic reactors of fusion-DEMO detritiation system | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
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 |
枝尾, 祐希
× 枝尾, 祐希× 佐藤, 克美× 岩井, 保則× 林, 巧× 枝尾 祐希× 佐藤 克美× 岩井 保則× 林 巧 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Thoughtful consideration of abnormal events such as fire is required to design and qualify a detritiation system (DS) of a nuclear fusion facility. Since conversion of tritium to tritiated vapor over catalyst is the key process of the DS, it is indispensable to evaluate the effect of excess moisture and hydrocarbons produced by combustion of cables on tritium conversion rate considering fire events. We conducted demonstration tests on tritium conversion under the following representative conditions, (I) leakage of tritium; (II) leakage of tritium plus moisture; (III) leakage of tritium plus hydrocarbons. Detritiation behavior in the simulated room was assessed, and the amount of catalyst to fulfill the requirement on tritium conversion rate was evaluated. The dominant parameters for detritiation are the concentration of hydrogen in air and catalyst temperature. The tritium in the simulated room was decreased for condition (I) following ventilation theory. An initial reduction in conversion rate was measured for condition (II). To recover the reduction smoothly, it is suggested to optimize the power of preheater. An increase in catalyst temperature by heat of reaction of hydrocarbon combustion was evaluated for condition (III). The heat balance of catalytic reactor is a point to be carefully investigated to avoid runaway of catalyst temperature. | |||||
書誌情報 |
Journal of Nuclear Science and Technology 巻 54, 号 7, p. 761-768, 発行日 2018-11 |
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出版者 | ||||||
出版者 | Taylor & Francis | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0022-3131 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1080/00223131.2017.1315970 | |||||
関連サイト | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1080/00223131.2017.1315970 | |||||
関連名称 | https://doi.org/10.1080/00223131.2017.1315970 |