Long pulse operation with actively cooled limiters

被引：5

作者：

Guilhem, D ^{[1
]}

Hogan, J ^{[1
]}

VanHoutte, D ^{[1
]}

Lipa, M ^{[1
]}

Loarer, T ^{[1
]}

Chappuis, P ^{[1
]}

Hoang, T ^{[1
]}

Schlosser, J ^{[1
]}

Mitteau, R ^{[1
]}

机构：

[1] OAK RIDGE NATL LAB, DIV FUS ENERGY, OAK RIDGE, TN USA

来源：

JOURNAL OF NUCLEAR MATERIALS | 1997年 / 241卷

关键词：

Tore Supra; boundary plasma; energy deposition; limiter; sheath physics;

D O I：

10.1016/S0022-3115(97)80096-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present here the major results obtained with actively cooled plasma facing components during long pulse operation (plasma duration > 3 x surface temperature time constant = steady-state). Shots up to 120 s have been achieved in Tore Supra when the plasma was leaning on the large inner toroidal actively cooled limiter with a moderate deposited power density heat flux (up to 0.3 MW/m(2)). For larger power density heat flux up to 4.5 MW/m(2) (design value), modular limiters have been used. A prerequisite for any actively cooled limiter is the absence of any cooling defect (crack II to the surface in the tile or non-correct bonding). If a defect is present it leads to a super-brilliance event (with its corresponding local power heat flux increase) which propagates. This deleterious effect is unfortunately a runaway effect.

引用

页码：542 / 547

页数：6

共 9 条

[1] TEMPERATURE LIMIT OF A GRAPHITE DIVERTOR SURFACE DUE TO SELF-SPUTTERING AND RADIATION ENHANCED SUBLIMATION [J].