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

Technical Report · Fri Nov 01 04:00:00 EST 1991

DOI:https://doi.org/10.2172/5808920· OSTI ID:5808920

Schultz, J H; Marston, P G; Hale, J R; Dawson, A M

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.

• Research Organization: Massachusetts Inst. of Tech., Cambridge, MA (United States). Plasma Fusion Center
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: FG22-90PC90350
• OSTI ID: 5808920
• Report Number(s): DOE/PC/90350-4; ON: DE92008696
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
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75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
C CODES
CABLES
COMPUTER CODES
COMPUTERIZED SIMULATION
CONDUCTOR DEVICES
DEMONSTRATION PROGRAMS
ELECTRIC CABLES
ELECTRICAL EQUIPMENT
ELEMENTS
ENERGY TRANSFER
EQUIPMENT
FLUIDS
GASES
HEAT TRANSFER
HELIUM
NONMETALS
QUENCHING
RARE GASES
SIMULATION
STABILITY
SUPERCONDUCTING CABLES
THERMAL CONDUCTION