Plasma facing components integration studies for the WEST divertor

被引：8

作者：

Ferlay, Fabien ^{[1
]}

Missirlian, Marc ^{[1
]}

Guilhem, Dominique ^{[1
]}

Firdaouss, Mehdi ^{[1
]}

Richou, Marianne ^{[1
]}

Doceul, Louis ^{[1
]}

Faisse, Frederic ^{[1
]}

Languille, Pascal ^{[1
]}

Larroque, Sebastien ^{[1
]}

Martinez, Andre ^{[1
]}

Proust, Maxime ^{[1
]}

Louison, Cephise ^{[1
]}

Jeanne, Florian ^{[1
]}

Saille, Alain ^{[1
]}

Samaille, Frank ^{[1
]}

Verger, Jean-Marc ^{[1
]}

Bucalossi, Jerome ^{[1
]}

机构：

[1] CEA, IRFM, F-13108 St Paul Les Durance, France

来源：

FUSION ENGINEERING AND DESIGN | 2015年 / 98-99卷

关键词：

ToreSupra; WEST; Divertor; PFC; PFU; Integration;

D O I：

10.1016/j.fusengdes.2015.02.053

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：

In the context of the Tokamak Tore-Supra evolution, the CEA aims at transforming it into a test bench for ITER actively cooled tungsten (ACW) plasma facing components (PFC). This project named WEST (Tungsten Environment in Steady state Tokamak) is especially focused on the divertor target. The modification of the machine, by adding two axisymmetric divertors will make feasible an H-mode with an X-point close to the lower divertor. This environment will allow exposing the divertor ACW components up to 20 MW/m(2) heat flux during long pulse. These specifications are well suited to test the ITER-like ACW target elements, respecting the ITER design. One challenge in such machine evolution is to integrate components in an existing vacuum vessel in order to obtain the best achievable performance. This paper deals with the design integration of ITER ACW target elements into the WEST environment considering magnetic, electric, thermal and mechanical loads. The feasibility of installation and maintenance has to be strongly considered as these PFC could be replaced several times. The ports size allows entering a 30 degrees sector of pre-installed tungsten targets which will be plugged as quickly and easily as possible. The main feature of steady state operation is the active cooling, which leads to have many embedded cooling channels and bulky pipes on the PFC module including many connections and sealings between vacuum and water channels. The 30 degrees sector design is now finalized regarding the ITER ACW elements specifications. No major modifications are expected. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：1285 / 1289

页数：5

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