Parametric study of the stability margin of cable-in-conduit superconductors: theory
Recently, Lue, Miller, and Dresner reported that the stability margin of cable-in-conduit superconductors is multivalued for certain combinations of transport current, ambient helium pressure, and externally imposed helium flow. There is a limiting transport current below which the stability margin is single-valued and equal to the upper stability margin. This theory is used here to determine the scaling of the limiting transport current with critical temperature, ambient helium temperature, resistivity of copper, length of the heated zone, duration of the heat pulse, hydraulic diameter of the helium-filled part of the cable, volume fraction of copper in the metal, and volume fraction of metal in the cable. Combined with experimental data, the scaling relation provides a sound basis for design.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 6989996
- Report Number(s):
- CONF-800980-16; TRN: 80-018594
- Resource Relation:
- Conference: Applied superconductivity conference, Santa Fe, NM, USA, 29 Sep 1980
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
SUPERCONDUCTING CABLES
HEAT TRANSFER
STABILITY
HELIUM
MATHEMATICAL MODELS
THEORETICAL DATA
UNDERGROUND POWER TRANSMISSION
CABLES
CONDUCTOR DEVICES
DATA
ELECTRIC CABLES
ELECTRICAL EQUIPMENT
ELEMENTS
ENERGY TRANSFER
EQUIPMENT
FLUIDS
GASES
INFORMATION
NONMETALS
NUMERICAL DATA
POWER TRANSMISSION
RARE GASES
200303* - Power Transmission & Distribution- Superconducting & Cryogenic Systems- (-1989)
420201 - Engineering- Cryogenic Equipment & Devices