High heat load test of CFC divertor target plate with screw tube for JT-60 superconducting modification

被引：21

作者：

Masaki, K ^{[1
]}

Taniguchi, M ^{[1
]}

Miyo, Y ^{[1
]}

Sakurai, S ^{[1
]}

Sato, K ^{[1
]}

Ezato, K ^{[1
]}

Tamai, H ^{[1
]}

Sakasai, A ^{[1
]}

Matsukawa, M ^{[1
]}

Ishida, S ^{[1
]}

Miya, N ^{[1
]}

机构：

[1] Japan Atom Energy Res Inst, Naka Fus Res Estab, Dept Fus Facil, Facil Div 2 JT60, Naka, Ibaraki 3110193, Japan

来源：

FUSION ENGINEERING AND DESIGN | 2002年 / 61-62卷

关键词：

divertor target; CFC; Cu-alloy heat sink; brazing; screw tube; non-boiling region; heat transfer coefficient; high heat load; heat cycle test;

D O I：

10.1016/S0920-3796(02)00115-1

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

A flat carbon fiber composite (CFC) tile mock-up with screw tubes, which have helical fins like a nut, was fabricated aiming at further improvement of the heat removal performance of the cost-effectively manufactured divert or target for JT-60SC (modified JT-60 as a superconducting coil tokamak). The heat removal performance of the mock-up was successfully demonstrated on the JAERI Electron Beam Irradiation Stand. The estimated heat transfer coefficient of the screw tube at the non-boiling region was roughly three times higher than that of the smooth tube. This corresponds to 1.5 times that of the swirl tube. A heat cycle test of 10 MW/m(2) showed that the mock-up with the screw tubes could withstand for 1400-cycles. These results indicate that the divertor target plate with the flat CFC tile and the screw tube can be a promising candidate for the JT-60SC divertor target. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：171 / 176

页数：6

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