Potential approach of IR-analysis for high heat flux quality assessment of divertor tungsten monoblock components

被引：5

作者：

Greuner, Henri ^{[1
]}

Boeswirth, B. ^{[1
]}

Maier, H. ^{[1
]}

Hirai, T. ^{[2
]}

Panayotis, S. ^{[2
]}

Crescenzi, F. ^{[3
]}

Roccella, S. ^{[3
]}

Visca, E. ^{[3
]}

Missirlian, M. ^{[4
]}

Richou, M. ^{[4
]}

机构：

[1] Max Planck Inst Plasma Phys, Boltzmannstr 2, D-85748 Garching, Germany

[2] ITER Org, F-13067 St Paul Les Durance, France

[3] ENEA EUROfus, Via E Fermi 45, I-00044 Frascati, Italy

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

来源：

FUSION ENGINEERING AND DESIGN | 2017年 / 124卷

关键词：

Tungsten; Divertor; Plasma-Facing components; High heat flux tests; Monoblock; Quality assessment; WENDELSTEIN 7-X DIVERTOR; ITER; FACILITY; ELEMENTS; TESTS;

D O I：

10.1016/j.fusengdes.2017.02.092

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 paper discusses a potential approach of infrared (IR)-analysis for high heat flux quality assessment of divertor tungsten monoblock components. The aim of these activities is the development of a statistics based method for the general application to the high heat flux testing of industrially manufactured W monoblock plasma-facing components. We have performed tests with 100 cycles at 10 MW/m(2) on 13 components or mock-ups manufactured for ITER, for the DEMO divertor development and for the WEST project. For eight W monoblock components with grinded surfaces, the statistical high heat flux (HHF) quality assessment method originally developed for the series manufacturing of carbon fibre reinforced carbon flat tile divertor components for Wendelstein 7-X was applied. The large variability of the emissivity of W as well as the monoblock geometry require a careful emissivity correction of IR camera data. The emissivity is strongly dependent on the W surface quality and final machining and influences the apparent temperature measured by an IR camera. Therefore we have applied a pragmatic correction algorithm based on two-colour pyrometry. Finally we propose a possible HHF testing strategy of a large number of industrially manufactured W monoblock components. (C) 2017 The Authors. Published by Elsevier B.V.

引用

页码：202 / 206

页数：5

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