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Méthode de mesure de la fraction gazeuse dans les écoulements cryogéniques diphasiques.

How to measure void fraction of two-phase cryogenic flows.

Auteurs : FILIPPOV J. P.

Type d'article : Article

Résumé

The report presents the experience in the field of designing, manufacturing and testing the void fraction sensors of round and annular cross-sections for research purposes and practical applications. These sensors are of radio frequency type with a uniform electric field within the measuring volume, and their readings depend on the dielectric permittivity of the media filling the sensitive part. The measuring system and method to calibrate these sensors are described. The temperature sensors used to measure the frequency (RF)-systems for TESLA Test Facility cooled with two-phase superfluid helium at 1.8 K, Nuclotron and UNK cooled with two-phase helium at 4.5 K, the installation to separate isotopes of hydrogen at 22 K, etc. are reported.

Détails

  • Titre original : How to measure void fraction of two-phase cryogenic flows.
  • Identifiant de la fiche : 2003-0594
  • Langues : Anglais
  • Source : Cryogenics - vol. 41 - n. 5-6
  • Date d'édition : 05/2001

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