NDLI: Assessment of an ITER-like water-cooled divertor for DEMO

Content Provider	IEEE Xplore Digital Library
Author	Visca, E. Crescenzi, F. Moriani, A. Puma, A.L. Richou, M. Roccella, S.
Copyright Year	2013
Description	Author affiliation: CEA, IRFM, St. Paul-lez-Durance, France (Richou, M.) \|\| CEA, DEN Saclay, Gif-sur-Yvette, France (Puma, A.L.) \|\| Assoc. EURATOM-ENEA sulla Fusione, Frascati, Italy (Visca, E.; Crescenzi, F.; Moriani, A.; Roccella, S.)
Abstract	This paper presents main outcomes of activities, performed in the frame of the EFDA task WP12-DAS-02-T02 and whose main objective was to investigate the feasibility and the range of applicability of a water-cooled divertor (WCD) based on technology developed for ITER to DEMO1. That includes the analysis of the power handling limits, the impact of the end-of-life irradiation fluence, as well as the assessment of available material properties. The considered divertor configuration is a water-cooled monoblock divertor which should be suitable for DEMO operation. For this purpose also Copper alloys, with their high thermal conductivities and relative high strengths, have to be considered when high heat flux handling is required but the aspect of n-irradiation cannot be neglected. All these aspects are assessed for two heat sink materials possible candidates: CuCrZr-IG, EUROFER. For these materials the psychical and mechanical properties were investigated considering their behaviour under n-irradiation and focusing the attention on the conceivable DEMO operational window with respect to temperatures and n-irradiation material properties degradation. The work is then concluded with thermo-mechanical studies of appropriate FE models to predict the heat flux performance capability and lifetime of a W mono-block with cooling pipes made of different Cu-alloys and EUROFER.
Starting Page	1
Ending Page	6
File Size	862370
Page Count	6
File Format	PDF
e-ISBN	9781479901715
DOI	10.1109/SOFE.2013.6635433
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	Materials Radiation effects Fatigue Heating Electron tubes Geometry Heat sinks WCD heat sink materials
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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