Completion of the production of the W7-X divertor target modules

被引：7
|
作者：
Boscary, J. [1 ]
Ehrke, G. [2 ]
Greuner, H. [1 ]
Junghanns, P. [1 ]
Li, C. [1 ]
Mendelevitch, B. [1 ]
Springer, J. [1 ]
Stadler, R. [1 ]
机构：
[1] Max Planck Inst Plasma Phys, Boltzmannstr 2, D-85748 Garching, Germany
[2] Max Planck Inst Plasma Phys, Wendelsteinstr 1, D-17498 Greifswald, Germany
来源：
FUSION ENGINEERING AND DESIGN | 2021年 / 166卷
关键词：
Stellarator; Wendelstein; 7-X; Plasma facing component; Divertor;
D O I：
10.1016/j.fusengdes.2021.112293
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：
The installation of an actively water cooled divertor in the stellarator Wendelstein 7-X (W-7X) is mandatory to achieve stationary power and particle exhaust for pulse lengths up to 30 min. The highly loaded divertor area is made of 100 target modules distributed in ten divertor units. The target modules have mechanical support frames with attachment systems to the plasma vessel, and manifolds to distribute water equally between the target elements. A target element is designed to remove a stationary heat flux up to 10 MW/m2 and is made of a CuCrZr copper alloy heat sink armored with CFC NB31 tiles. The manufacturing process, assembly and quality assessment of the last 70 target modules has been successfully completed in the Integrated Technical Centre of IPPGarching. Some parts such as the target elements and manifolds were delivered by industry. The quality was assessed as follows: visual inspections, measurement of the 3-D CFC surface, dynamic pressure tests, He leak testing under pressure at different temperature (20 ?C, 160 ?C) in vacuum oven, high heat flux testing. The production of the water cooled divertor is now completed, and the mounting operation of the target modules in the plasma vessel of W7-X has started.
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页数：4
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