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Stability Measurements of a Superconductor Cooled By a Two-Dimensional Channel of Helium II

  • John M. Pfotenhauer
  • S. W. Van Sciver
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 31)

Abstract

This report presents measurements on the stability of a He II cooled superconductor. The conductor is helically wound in a phenolic coil support and is cooled by a channel of He II which allows for heat transfer in two dimensions. Stability is measured by recovery of the superconducting state following a transient burst of heat. The data also allows one to measure normal zone propagation velocities and temperature profiles at various times. Currents in the conductor range from 0 to 5 kA with background magnetic field ranging from 0 to 11 tesla. Descriptions of stability boundaries are given in terms of maximum energy bursts from which the conductor recovers as a function of transport current, channel size and background field. Comparisons of the data with an analysis of stability in a one-dimensional channel are shown to be useful. This experimental configuration is intended to model some aspects of a superconducting magnetic energy storage system.

Keywords

Stability Boundary Surface Heat Flux Normal Zone Superfluid Helium Transient Stability 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1986

Authors and Affiliations

  • John M. Pfotenhauer
    • 1
  • S. W. Van Sciver
    • 1
  1. 1.Applied Superconductivity CenterUniversity of Wisconsin-MadisonMadisonUSA

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