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Cryorefroidisseur turbo-Brayton de 2 à 5 K à grande vitesse de rotation pour les applications spatiales.

High rotational speed 2-5 K turbo-Brayton cooler for space applications.

Auteurs : DELCAYRE F., REALE S., MAROT G., et al.

Résumé

Future scientific satellites will need on board refrigeration systems operating in the range 2 to 5 K to cool either their detectors or precool sub-kelvin coolers. These cryogenic systems will require relatively high cooling power, micro vibrations levels at low frequencies to ensure optical alignments. AL/DTA has started a development program to investigate technologies in order to provide a cryogenic power higher than 50 mW at 5 K without exporting unacceptable levels of vibrations. This development is based on a multi-stages Brayton cycle cooler operating at frequencies higher than 1000 Hz. These developments are performed in the frame of a European Space Agency TRP including the complete system design studies and the development of the most critical technologies.

Détails

  • Titre original : High rotational speed 2-5 K turbo-Brayton cooler for space applications.
  • Identifiant de la fiche : 2006-0090
  • Langues : Anglais
  • Source : Proceedings of the nineteenth International Cryogenic Engineering Conference. ICEC 19.
  • Date d'édition : 22/07/2002

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