Axisymmetric Simulations of the ITER Vertical Stability Coil

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The ITER in-vessel coil system includes Vertical Stability (VS) coils and Edge Localized Mode (ELM) coils. There are two large VS ring coils, one upper and one lower. Each has four turns which are independently connected. The VS coils are needed for successful operation of ITER for most all of its operating modes. The VS coils must be highly reliable and fault tolerant. The operating environment includes normal and disruption Lorentz forces. To parametrically address all these design conditions in a tractable analysis requires a simplified model. The VS coils are predominately axisymmetric, and this suggests that an axisymmetric model ... continued below

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Titus, Peter H. July 9, 2013.

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Description

The ITER in-vessel coil system includes Vertical Stability (VS) coils and Edge Localized Mode (ELM) coils. There are two large VS ring coils, one upper and one lower. Each has four turns which are independently connected. The VS coils are needed for successful operation of ITER for most all of its operating modes. The VS coils must be highly reliable and fault tolerant. The operating environment includes normal and disruption Lorentz forces. To parametrically address all these design conditions in a tractable analysis requires a simplified model. The VS coils are predominately axisymmetric, and this suggests that an axisymmetric model can be meaningfully used to address the variations in mechanical design, loading, material properties, and time dependency. The axisymmetric finite element analysis described in this paper includes simulations of the bolted frictional connections used for the mounting details. Radiation and elastic-plastic response are modeled particularly for the extreme faulted conditions. Thermal connectivity is varied to study the effects of partial thermal connection of the actively cooled conductor to the remaining structure.

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  • SOFE 2013 Proeedings (June 2013) 25th Symposium on Fusion Engineering, San Francisdco, CA (June 10-14, 2013)

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  • Report No.: PPPL-4925
  • Grant Number: DE-ACO2-09CH11466
  • Office of Scientific & Technical Information Report Number: 1088030
  • Archival Resource Key: ark:/67531/metadc835126

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  • July 9, 2013

Added to The UNT Digital Library

  • May 19, 2016, 9:45 a.m.

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  • June 28, 2016, 12:14 p.m.

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Titus, Peter H. Axisymmetric Simulations of the ITER Vertical Stability Coil, article, July 9, 2013; Princeton, New Jersey. (digital.library.unt.edu/ark:/67531/metadc835126/: accessed September 25, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.