DC CICC retrofit magnet preliminary design, protection analysis and software development

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In the past few years, several computer codes have been written for the purpose of analyzing transient recovery and quench in internally-cooled cable-in-conduit superconductors (ICCS). These codes all include a transient, compressible helium flow model. They differ in the dimensionality'' of the models, ranging from one- to three-dimensional finite element modeling of thermal conduction. The code used in this study, Wong's CICC, is a 1-{1/2} D code that models thermal conduction through the insulation of an individual conduit. Until recently, the calibration of CICC was restricted to measurements of helium expulsion in normal conductor. No actual quenches in ICCS coils ... continued below

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Pages: (10 p)

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Schultz, J.H.; Marston, P.G.; Hale, J.R. & Dawson, A.M. November 1, 1991.

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Description

In the past few years, several computer codes have been written for the purpose of analyzing transient recovery and quench in internally-cooled cable-in-conduit superconductors (ICCS). These codes all include a transient, compressible helium flow model. They differ in the dimensionality'' of the models, ranging from one- to three-dimensional finite element modeling of thermal conduction. The code used in this study, Wong's CICC, is a 1-{1/2} D code that models thermal conduction through the insulation of an individual conduit. Until recently, the calibration of CICC was restricted to measurements of helium expulsion in normal conductor. No actual quenches in ICCS coils had been simulated. In the past year, several experiments on ICCS conductors of differing topology have been performed and compared with CICC simulations, with varying success. This paper reports on the capability of CICC to predict and analyze ICCS recovery and quench, and on the code's limitations and need for further improvements.

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Pages: (10 p)

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OSTI; NTIS; GPO Dep.

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  • Other: DE92008696
  • Report No.: DOE/PC/90350-4
  • Grant Number: FG22-90PC90350
  • DOI: 10.2172/5808920 | External Link
  • Office of Scientific & Technical Information Report Number: 5808920
  • Archival Resource Key: ark:/67531/metadc1101057

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  • November 1, 1991

Added to The UNT Digital Library

  • Feb. 18, 2018, 3:59 p.m.

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  • March 2, 2018, 5:55 p.m.

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Schultz, J.H.; Marston, P.G.; Hale, J.R. & Dawson, A.M. DC CICC retrofit magnet preliminary design, protection analysis and software development, report, November 1, 1991; United States. (digital.library.unt.edu/ark:/67531/metadc1101057/: accessed December 13, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.