Conceptual study of vertical sector transport maintenance for DEMO fusion reactor

被引:10
作者
Utoh, Hiroyasu [1 ]
Tobita, Kenji [1 ]
Someya, Youji [1 ]
Takase, Haruhiko [1 ]
机构
[1] Japan Atom Energy Agcy, Rokkasho, Aomori 0393212, Japan
关键词
Maintenance; Vertical sector transport; DEMO; Design; Fusion reactor; DESIGN; CORE;
D O I
10.1016/j.fusengdes.2012.03.024
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 maintenance scheme is a critical issue for DEMO design, and requires high availability of the reactor. The SlimCS, designed in JAEA, adopts the horizontal sector transport hot cell maintenance scheme. In order to determine the most appropriate DEMO reactor maintenance scheme, it is important to assess the various maintenance schemes. In this paper the vertical sector transport maintenance concept is proposed for the first time. In the sector maintenance scheme, the amount of cutting/re-welding of the piping is minimized. The sector including blanket modules and a high-temperature shield was divided into 10 degrees segments in a toroidal direction. The sectors are designed to be removed and re-inserted through upper alternate vertical maintenance ports. In the case of the vertical sector transport maintenance scheme, inter-coil structures could be adopted for use against turnover force in toroidal field (TF) coils. This shows an advantage in DEMO maintenance compared with horizontal sector transport. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码:1409 / 1413
页数:5
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