Analysis of ITER Upper Port Diagnostic First Walls

Authors:  M. Smith, Y. Zhai, G. Loesser, W. Wang, V. Udintsev, T. Giacomin, 
A. Khodak, D. Johnson, R. Feder, J. Klabaha

Abstract:   The Diagnostic First Walls (DFWs) were designed to handle the plasma nuclear and radiant heating along with electro-magnetic loading induced from plasma disruptions.  The DFWs also provide custom viewing apertures for the diagnostics within.  Consequently, the DFWs contain numerous complex water cooling channels and are designed per ITER SDC-IC criteria for design by analysis.  This paper presents the analyses of the Upper Port DFWs proceeding to a final design review.  The finite element analyses (FEAs) performed includes neutronics, radiative heating, coupled fluid dynamics and heat transfer, and static and transient structural analysis using the combined multi-physics load conditions.  Static structural FEAs performed account for the dynamic amplification effects of the transient load.  A detailed bolt analysis was also performed per the ITER SDC-IC bolt evaluation criteria based on reaction loads obtained from the mechanical simulations.
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Presented at:  21st Topical Meeting on Technology of Fusion Energy, Anaheim, CA, November 2014

Submitted to:  Fusion Science and Technology
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Download PPPL-5174 (pdf 2.2 MB 8 pp)
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