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Technical background on design of DS recombiner for fusion facility
https://repo.qst.go.jp/records/76510
https://repo.qst.go.jp/records/765105631a53e-7ee3-4ec3-9a87-38447f87df44
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2019-08-20 | |||||
| タイトル | ||||||
| タイトル | Technical background on design of DS recombiner for fusion facility | |||||
| 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 |
Iwai, Yasunori
× Iwai, Yasunori× Edao, Yuuki× Kurata, Rie× Suzuki, Takumi× Isobe, Kanetsugu× Yasunori, Iwai× Yuuki, Edao× Rie, Kurata× Takumi, Suzuki× Kanetsugu, Isobe |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Detritiation system of a nuclear fusion facility should maintain its detritiation performance even in an event of accident of the facility such as fire. The major technical background on design of recombiner for tritium oxi-dation are detailed kinetics data including the impact of possible gaseous impurities on kinetics, characteristics on pressure drop, impact of heat of reaction and effect of flow rate on kinetics. The volume of catalyst is evaluated by the overall reaction rate constant, required conversion efficiency and gas flow rate for processing. Our demonstration showed that the overall reaction rate constant has the effect of hydrogen concentration. Among possible impurity gases, water vapor, ammonia and halogenated acids affect tritium oxidation. Experimental demonstration revealed that the scale of recombiner have little effect on the overall reaction rate constant. The height of the catalyst layer is determined first from the allowable pressure drop considering the upstream line of the recombiner not to be pressurized. Then, the inner diameter of the recombiner is determined from the volume of catalyst. The concept of adiabatic recombiner with a vacuum jacket can be applied to avoid tritium permeation. The rate of tritiated methane produced by side reactions on the catalyst between methane and tritium was negligibly small. | |||||
| 書誌情報 |
Fusion Engineering and Design 巻 146, p. 1162-1165, 発行日 2019-08 |
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| 出版者 | ||||||
| 出版者 | Elesevier | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0920-3796 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1016/j.fusengdes.2019.02.032 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://www.sciencedirect.com/science/article/pii/S0920379619302078 | |||||
