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Summary of thermal analyses to determine the refrigeration power for the JT-60SA helium refrigerator
https://repo.qst.go.jp/records/74618
https://repo.qst.go.jp/records/74618868fea6f-4893-4ffb-975d-2d8dc226e262
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2019-03-01 | |||||
| タイトル | ||||||
| タイトル | Summary of thermal analyses to determine the refrigeration power for the JT-60SA helium refrigerator | |||||
| 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 |
神谷, 宏治
× 神谷, 宏治× 夏目, 恭平× 福井, 良磨× 村上, 陽之× 木津, 要× 礒野, 高明× Wanner, Manfred× Kamiya, Koji× Natsume, Kyohei× Fukui, Kazuma× Murakami, Haruyuki× Kizu, Kaname× Isono, Takaaki |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | JT-60SA is an upgrade of JT-60U using exclusively superconducting coils to confine the plasma with a typical flat top duration up to 100 s in purely inductive mode. In order to define the helium refrigerator requirements for the superconducting coil system, their thermal protection and the cryopumps, heat loads at different temperature levels have been defined. Because of plasma pulse operation, transient heat pulses appear at the 4 K level for the superconducting coils and the cold structures as well as at the divertor cryopumps of JT-60SA. Since the heat loads were calculated at an earlier stage of the project, the loads of each component design had a certain amount of uncertainty. In JT-60SA, an attempt was made to define reasonable contingencies for the heat load by applying Monte Carlo simulation and put the 99% confidence value of the heat load as requirement for the refrigerator. Exergy analysis of heat loads at different temperatures and the helium mass flows of the JT-60SA resulted in an equivalent refrigeration power of about 9 kW at 4.5 K. This paper summarizes all the thermal analyses performed to determine the refrigeration power of the JT60SA helium refrigerator. |
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| 書誌情報 |
Cryogenics 巻 99, p. 51-60, 発行日 2019-02 |
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| 出版者 | ||||||
| 出版者 | ELSEVIER | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0011-2275 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1016/j.cryogenics.2019.02.008 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://www.sciencedirect.com/science/article/abs/pii/S0011227518303084 | |||||
