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The Quench Recovery Analysis of the JT-60SA Superconducting Magnet
https://repo.qst.go.jp/records/79291
https://repo.qst.go.jp/records/79291da91ef04-e251-4b0f-ba2a-af9636987e6b
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2020-03-10 | |||||
| タイトル | ||||||
| タイトル | The Quench Recovery Analysis of the JT-60SA Superconducting Magnet | |||||
| 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 |
Fukui, Kazuma
× Fukui, Kazuma× Natsume, Kyohei× Murakami, Haruyuki× Kizu, Kaname× Isono, Takaaki× Kazuma, Fukui× Kyohei, Natsume× Haruyuki, Murakami× Kaname, Kizu× Takaaki, Isono |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | JT-60SA is one of the experimental nuclear fusion reactors with superconducting magnets. It is a joint international research and development project involving Japan and Europe. The temperature distribution changes in recovery is investigated. The quench recovery period is necessary to be confirmed. Generally, the maximum temperature drop of magnets is able to be confirmed by checking the thermometer attached to the outlet of the helium flow path. However, the maximum temperature of the JT-60SA central solenoid (CS) is not able to be measured during quench recovery. The flowing paths of CS is C-shaped and both of the outlets and the inlets of helium are on the outer periphery surface of the CS modules. Due to this C-shaped flowing path, heat exchanges between the inlet flow paths and the outlet flow paths. The CS outer periphery side becomes colder than the inner periphery side. The typical issue is the CS inside temperature is not able to be measured by the thermometers on the flowing paths. In this work, the CS temperature distribution changes during quench recovery is calculated and the period necessary for recovery is investigated. A CS module is composed of the 52 layers pancake coils. The 26 helium flowing paths are in a one module. The refrigerator supplies helium at 4.4 K to each flowing paths in nominal operation. In case of a quench, the refrigerator stops helium supply in order to shut out large heat load from the quenched magnet. The temperature distribution of the quenched CS will be smoothed by a heat conduction between each pancake coils while helium is stopped. Helium will be supplied again when the magnet pressure become low enough. The temperature distribution changes are calculated by using the thermal fluid simulation codes. |
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| 書誌情報 |
IEEE Transactions on Applied Superconductivity 巻 30, 号 4, 発行日 2020-06 |
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| 出版者 | ||||||
| 出版者 | The IEEE Council on Superconductivity | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1051-8223 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1109/TASC.2020.2973128 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://ieeexplore.ieee.org/document/8993724 | |||||
