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Thermal, Electromagnetic and Structural Analysis of NSTX TF Coil

H. Zhang, M. Smith, P. Titus, P. Rogoff, A. Zolfaghari, D. Mangra

Fusion Science and Technology / Volume 60 / Number 2 / August 2011 / Pages 664-668

Alternate Concepts & Magnets / Proceedings of the Nineteenth Topical Meeting on the Technology of Fusion Energy (TOFE) (Part 2) /

Analyses for the NSTX upgrade serve two main purposes. The first is supporting the design of new components, principally the centerstack. The second is qualifying the existing components for higher loads, which increase by a factor of four. Two areas representing this effort are presented: analysis of the current distribution in the new centerstack TF inner coils, and analysis of the support structure for the existing TF outer coils. The current diffusion analysis determines the temperature rise, thermal stress and required active cooling parameters. The TF structural analysis aids in the truss design while quantifying the machine loads and stresses.

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