New developments of remountable high-temperature superconducting magnet by introducing a maintenance viewpoint
| Project/Area Number |
17H03507
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Nuclear fusion studies
|
|---|
| Research Institution | Tohoku University |
|---|
Principal Investigator |
Ito Satoshi 東北大学, 工学研究科, 准教授 (60422078)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
野上 修平 東北大学, 工学研究科, 准教授 (00431528)
田村 仁 核融合科学研究所, ヘリカル研究部, 准教授 (20236756)
西島 元 国立研究開発法人物質・材料研究機構, 機能性材料研究拠点, 主幹研究員 (30333884)
柳 長門 核融合科学研究所, ヘリカル研究部, 教授 (70230258)
|
|---|
| Project Period (FY) |
2017-04-01 – 2020-03-31
|
| Project Status |
Completed (Fiscal Year 2019)
|
| Budget Amount *help |
¥16,380,000 (Direct Cost: ¥12,600,000、Indirect Cost: ¥3,780,000)
Fiscal Year 2019: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2018: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2017: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
|
|---|
| Keywords | 分割型高温超伝導マグネット / ヘリカル型核融合炉 / 超伝導クエンチセンサー / プラズマ・核融合 / 超伝導材料・素子 / 電磁・マグネット |
|---|
| Outline of Final Research Achievements |
For maintenance and operation of remountable high-temperature superconducting magnet for fusion reactor, we conducted 1) Optimization of joint technique considering maintenance scenario, and 2) Development of condition-based maintenance technique using superconducting quench sensors. For 1), we proposed new joint structure based on results of stress condition at joint section of the magnet during fabrication and operation phases and those of mechanical testing of joint samples of REBCO high-temperature superconducting tapes. Then we achieved to avoid a joint resistance increase at reattaching process. For 2) we demonstrated that NbTi sensor can detect quench in a REBCO pancake coil. In addition, we showed that MgB2 and B-2212 sensors can detect quench under magnetic field produced by fusion magnets based on numerical analysis.
|
| Academic Significance and Societal Importance of the Research Achievements |
本研究の成果により、これまで「建設」の観点で原理実証がなされてきた核融合炉用分割型高温マグネットに関する研究開発が、「保守・運用」の観点まで取り入れるフェーズにまで進んだ。マグネット構造解析と接合体の機械試験に基づいて接合部損傷の推定を行うための知見を得た他、事後保全に必要な再着脱技術の高度化にも成功した。早期のクエンチ検出技術の確立による高温超伝導応用機器の保護は、超伝導工学分野における最大の課題になっており、本研究で提案・開発した超伝導クエンチセンサは、核融合炉用高温超伝導マグネットだけでなく、多くの高温超伝導応用機器の課題に対する解を与えうるものである。
|
Report
(4 results)
Research Products
(40 results)
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
[Presentation] Development of Large-Current HTS Conductors for the Next-Generation Helical Fusion Experimental Device2019
Author(s)
N. Yanagi, T. Mito, J. Miyazawa, Y. Onodera, N. Hirano, Y. Narushima, S. Matsunaga, S. Ito, H. Tamura, S. Hamaguchi, H. Hashizume, K. Takahata
Organizer
28th International Toki Conference (ITC-28)
Related Report
Int'l Joint Research / Invited
-
-
[Presentation] 次世代ヘリカル装置への適用をめざした大電流／高電流密度・高温超伝導導体の開発2019
Author(s)
柳長門, 三戸利行, 宮澤順一, 小野寺優太, 平野直樹, 成嶋吉朗, 松永信之介, 伊藤悟, 田村仁, 濱口真司, 橋爪秀利, 高畑一也
Organizer
プラズマ・核融合学会第36回年会
Related Report
-
-
[Presentation] Development of Large-Current HTS Conductors for the Next-Generation Helical Fusion Experimental Device2019
Author(s)
N. Yanagi, T. Mito, J. M, Y. Onodera, N. Hirano, Y. Narushima, S. Matsunaga, S. Ito, H. Tamura, S. Hamaguchi, H. Hashizume, K. Takahata
Organizer
32nd International Superconductivity Symposium (ISS2019)
Related Report
Int'l Joint Research / Invited
-
[Presentation] Progresses of HTS Magnet and Conductor Developments for the Helical Fusion Reactor and Next-Generation Fusion Experimental Devices2019
Author(s)
N. Yanagi, T. Mito, J. M, Y. Onodera, N. Hirano, Y. Narushima, S. Matsunaga, S. Ito, H. Tamura, S. Hamaguchi, H. Hashizume, K. Takahata
Organizer
12th Asia Plasma and Fusion Association Conference
Related Report
Int'l Joint Research / Invited
-
-
-
-
-
-
[Presentation] Sample preparation for electro-mechanical measurements of mechanical lap joint of 10-kA-class prototype HTS STARS conductors2018
Author(s)
S. Ito, T. Nishio, R. Hayasaka, L. Aparicio, N. Yanagi, Y. Terazaki, N. Bagrets, M. J. Wolf, H. Tamura, K.-P. Weiss, H. Hashziume, A. Sagara, Reinhard Heller, W. H. Fietz
Organizer
4th HTS4Fusion Conductor Workshop
Related Report
Int'l Joint Research
-
-
-
-
-
[Presentation] Electro-mechanical measurements of mechanical lap joint of HTS STARS conductors2017
Author(s)
S. Ito, T. Nishio, N. Yanagi, Y. Terazaki, N. Bagrets, M.J. Wolf, H. Tamura, K-P. Weiss, H. Hashziume, A. Sagara, W.H. Fietz
Organizer
25th International Conference on Magnet Technology (MT25)
Related Report
Int'l Joint Research
-
-
-
-
