Co-Investigator(Kenkyū-buntansha) |
田村 仁 核融合科学研究所, ヘリカル研究部, 准教授 (20236756)
江原 真司 東北大学, 工学研究科, 准教授 (30325485)
伊藤 悟 東北大学, 工学研究科, 准教授 (60422078)
遊佐 訓孝 東北大学, 工学研究科, 准教授 (60466779)
柳 長門 核融合科学研究所, ヘリカル研究部, 教授 (70230258)
|
Budget Amount *help |
¥187,720,000 (Direct Cost: ¥144,400,000、Indirect Cost: ¥43,320,000)
Fiscal Year 2018: ¥17,030,000 (Direct Cost: ¥13,100,000、Indirect Cost: ¥3,930,000)
Fiscal Year 2017: ¥15,080,000 (Direct Cost: ¥11,600,000、Indirect Cost: ¥3,480,000)
Fiscal Year 2016: ¥15,600,000 (Direct Cost: ¥12,000,000、Indirect Cost: ¥3,600,000)
Fiscal Year 2015: ¥57,980,000 (Direct Cost: ¥44,600,000、Indirect Cost: ¥13,380,000)
Fiscal Year 2014: ¥82,030,000 (Direct Cost: ¥63,100,000、Indirect Cost: ¥18,930,000)
|
Outline of Final Research Achievements |
We established a method to predict the jointing resistance of the REBCO tapes under cryogenic temperature, strong magnetic field environment and improved heat transfer correlation for pool boiling in the metal porous media indispensable for the cooling performance prediction. In addition, we introduced joint piece and low temperature heat-treatment into the bridge-type mechanical lap joint of the 10kA conductor to succeed realizing 1/3 jointing resistance with 1/6 fabrication time. Furthermore, we performed a pinning center introduction based on a critical state model and a self-magnetic field evaluation by using proton beam irradiation to show controllability of a critical current density, which indicates the possibility of the function-divided conductor based on the superconductivity physics. According to the above results, the demountable high Tc superconducting magnet for an innovative nuclear fusion reactor is demonstrated together with the general jointing method for the magnets.
|