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THERMAL STABILITY OF A SUPERCONDUCTOR COOLED BY A TURBULENT FLOW OF SUPERCRITICAL HELIUM.

Author(s) : CORNELISSEN M. C. M., HOOGENDOORN C. J., FRANKEN W. M. P.

Summary

A DYNAMIC THERMAL SIMULATION OF A LARGE SCALE SUPERCONDUCTOR HAS BEEN MADE. BOTH TRANSIENT HEAT CONDUCTION IN THE COPPER/SUPERCONDUCTOR MATRIX AND TRANSIENT THERMAL AND FLOW EFFECTS IN THE HELIUM ARE CONSIDERED. THIS IS PERFORMED TO STUDY THE THERMAL STABILITY OF AN INTERNALLY COOLED SUPERCONDUCTOR. IN THE MODEL CURRENT SHARING EFFECTS AND VARIABLE PROPERTIES OF COPPER AND HELIUM ARE INCLUDED. BECAUSE OF TRANSIENT EFFECT THE CONSIDERED CONDUCTOR APPEARS TO BE ABLE TO ABSORB A THERMAL DISTURBANCE 3 TO 4 TIMES LARGER THAN IS FOUND WITH ANALYSIS WHERE NO TRANSIENT EFFECTS ARE CONSIDERED. FROM MASS FLOW VARIATIONS IT IS FOUND THAT EVEN IN CASE OF A STAGNANT HELIUM FLOWGOOD RECOVERY FROM THERMAL DISTURBANCES IS POSSIBLE.

Details

  • Original title: THERMAL STABILITY OF A SUPERCONDUCTOR COOLED BY A TURBULENT FLOW OF SUPERCRITICAL HELIUM.
  • Record ID : 1988-1320
  • Languages: English
  • Publication date: 1986/09/01
  • Source: Source: Proc. int. Symp. Heat Mass Transf. Refrig. Cryog., Dubr.
    641-653; 6 fig.; 1 tabl.; 28 ref.
  • Document available for consultation in the library of the IIR headquarters only.

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