Structural analysis of the ITER Divertor toroidal rails

The Divertor is one of the most technically challenging components of the ITER machine, which has the main function of extracting the power conducted in the scrape-off layer while maintaining the plasma purity. There are 54 Divertor cassettes installed in the vacuum vessel (VV). Each cassette body (...

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Bibliographic Details
Published in:Fusion engineering and design 2013-10, Vol.88 (9-10), p.2077-2083
Main Authors: Viganò, F., Escourbiac, F., Gicquel, S., Komarov, V., Lucca, F., Merola, M., Ngnitewe, R.
Format: Article
Language:English
Subjects:
Assessments
Cassettes
Criteria
Design engineering
Divertor
Finite element method
ITER
Mathematical analysis
Rails
Structural assessment
Structural design criteria
Toroidal rails
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Summary:The Divertor is one of the most technically challenging components of the ITER machine, which has the main function of extracting the power conducted in the scrape-off layer while maintaining the plasma purity. There are 54 Divertor cassettes installed in the vacuum vessel (VV). Each cassette body (CB) is fastened on the inner and outer concentric Divertor toroidal rails. The comprehensive assessment (in accordance with the Structural Design Criteria for ITER In-vessel Components: ITER SDC-IC) of the Divertor toroidal rails has been performed during design activity based on performing of thermal and stress analyses at operating conditions of neutron stage of ITER operation. This paper outlines the engineering aspects of the ITER Divertor toroidal rails and focuses on some critical regions of the present design highlighted by the performed structural assessment. The structural assessment has been performed with help of using Finite Element (FE) Abaqus code and based on criteria given by ITER SDC-IC.
ISSN:0920-3796
1873-7196
DOI:10.1016/j.fusengdes.2012.12.017