THE STABILITY BEHAVIOUR OF A COPPER-STABILIZED NIOBIUM-TITANIUM MULTIFILAMENTARY CONDUCTOR UNDER DIFFERENT COOLING CONDITIONS.

Author(s) : TUROWSKI P.

Type of article: Article

Summary

THE COOLING CONDITIONS WERE COOLING IN A LIQUID HELIUM BATH WITH AND WITHOUT A CONVECTIVE FLOW AND WITH SUPERCRITICAL HELIUM AT 600 KILOPASCALS WITH AND WITHOUT A FORCED FLOW. THE RESULTS SHOW THAT BATH COOLING WITH AN EXCITED CONVECTIVE FLOW AT THE BARE CONDUCTOR SURFACE TRANSVERSE TO THE ELECTRICAL CURRENT IS MOST EFFECTIVE IN MAGNETIC FIELDS ABOVE 6 T. ALL THE OTHER COOLING MODES WERE DOMINATED MAINLY BY THE TEMPERATURE GRADIENTS BETWEEN THE CONDUCTOR AND THE COOLANT, LEADING TO SMALLER EFFECTIVE HEAT FLOW RATES AND TO SMALLER RECOVERY CURRENTS. THE LONGITUDINAL VELOCITY OF A NORMAL CONDUCTING ZONE SHOWS THAT FOR FAST EVENTS LIKE THE PROPAGATION VELOCITY ONLY THE HEAT CAPACITY OF THE ATTACHED LIQUID HELIUM CONTRIBUTES TO THE COOLING.

Details

  • Original title: THE STABILITY BEHAVIOUR OF A COPPER-STABILIZED NIOBIUM-TITANIUM MULTIFILAMENTARY CONDUCTOR UNDER DIFFERENT COOLING CONDITIONS.
  • Record ID : 1985-1358
  • Languages: English
  • Source: Cryogenics - vol. 24 - n. 11
  • Publication date: 1984

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