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Optimisation thermodynamique des amenées de courant supraconductrices à haute température, refroidies par conduction.

Thermodynamic optimization of conduction-cooled high-temperature superconductor current leads.

Auteurs : CHANG H. M., SCIVER S. W. van

Type d'article : Article

Résumé

The current lead is a series combination of a normal metal conductor at the warmer part and a high temperature superconducting at the colder part, and is cooled by a contact with distributed or staged refrigerators instead of boil-off helium gas. An analytical method is developed to derive a mathematical expression for the required refrigerator power. As results of the study, the absolute minimum in the refrigerator power per unit current is presented as a thermodynamic limit and the leads cooled by a two-stage refrigerator are theoretically optimized. Some aspects in practical design are also discussed with a new and useful graphical method.

Détails

  • Titre original : Thermodynamic optimization of conduction-cooled high-temperature superconductor current leads.
  • Identifiant de la fiche : 1999-3351
  • Langues : Anglais
  • Source : Cryogenics - vol. 38 - n. 7
  • Date d'édition : 07/1998

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