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Système cryogénique du grand dispositif hélicoïdal.

[In Japanese. / En japonais.]

Auteurs : MITO T., SATOH S., MAEKAWA R.

Type d'article : Article

Résumé

The cryogenic system for the LHD consists of a helium refrigerator/liquefier, the LHD cryostat in which the superconducting helical coils, poloidal coils and coil supporting structures are installed, as well as the peripheral equipment such as superconducting bus lines, control-valve boxes and cryogenic transfer line. The helium refrigerator/liquefier has cooling capacities of 5.65 kilowatts at 4.4 K and 20.6 kilowatts from 40 to 80 K, and 650 liter/h liquefaction. Three different cooling schemes are utilized for each cooling object: a pool boiling for the helical coils (cold mass of 240 t), a forced flow of supercritical helium for the poloidal coils (182 t), a forced flow of two-phase helium for the coil supporting structure (390 t) and the superconducting bus lines (total length of 463 m).

Détails

  • Titre original : [In Japanese. / En japonais.]
  • Identifiant de la fiche : 1999-0006
  • Langues : Japonais
  • Source : Cryogenics/ Cryog. Eng. - vol. 32 - n. 11
  • Date d'édition : 1997
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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