NDLI: Wendelstein 7-X high heat flux components

Content Provider	IEEE Xplore Digital Library
Author	Peacock, A. Boscary, J. Czerwinski, M. Ehrke, G. Greuner, H. Junghanns, P. Mendelevitch, B. Smirnow, M. Stadler, R. Tittes, H. Tretter, J.
Copyright Year	2013
Description	Author affiliation: EURATOM Assoc., Max Planck Inst. for Plasma Phys., Greifswald, Germany (Czerwinski, M.; Ehrke, G.) \|\| EURATOM Assoc., Max Planck Inst. for Plasma Phys., Garching, Germany (Peacock, A.; Boscary, J.; Greuner, H.; Junghanns, P.; Mendelevitch, B.; Smirnow, M.; Stadler, R.; Tittes, H.; Tretter, J.)
Abstract	The actively water-cooled In-Vessel Components (IVCs) of the stellarator Wendelstein 7-X consist of the divertor, the first wall protection components, the port liners, each designed for different loading conditions, and the associated pipework, the control coils, the cryo-pump system, the Glow discharge electrodes, and a set of diagnostics. The divertor, designed for high heat fluxes, is a set of 10 target and baffle units arranged along the plasma surface. The design and production of these high heat flux (HHF) components is a challenging task. The divertor target elements, which are based on flat CFC (carbon-carbon fibre composite) tiles bonded via active metal casting onto CuCrZr cooling structures required intensive development and testing to reach a reliable performance; removing, under stationary conditions, 10 $MW/m^{2}.$ Industrially manufactured high quality target elements have been delivered and assessed, and the process of incorporating them into assembly units, so-called modules, has begun. The time scale for the completion of the HHF divertor has been held for the last four years and the final delivery of the HHF divertor is still planned in 2017. In parallel to the realization of the divertor the remaining IVCs have been defined, developed, designed and fabricated and the installation of many of these components has begun. Some of these components can also be expected, for a short period of time, to receive high heat loads approaching those of the divertor. These components will be described, in detail, from conception to realization.
Starting Page	1
Ending Page	8
File Size	1017046
Page Count	8
File Format	PDF
e-ISBN	9781479901715
DOI	10.1109/SOFE.2013.6635360
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-06-10
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Heating Plasmas Tiles Heat sinks Geometry Graphite Prototypes Stellarator Divertor In-Vessel Components Baffle First Wall Water-cooled W7-X
Content Type	Text
Resource Type	Article

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