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Document IIF

Développement et caractérisation d'une pompe centrifuge pour le transfert d'hélium liquide à faibles pertes.

Development and characterization of a centrifugal pump for low-loss liquid helium transfer.

Numéro : 148

Auteurs : DÖLL J., KLÖPPEL S., HABERSTROH C.

Résumé

At research institutes, liquid helium is supplied in mobile dewars, filled by pressurization of the storage dewar. To reduce the evaporation losses significantly, a pump can be installed. In this article, a prototype of a submersible centrifugal pump is comprehensively investigated by varying process parameters such as shaft speed and sealing gap. The measurements were performed with a single flow transfer line during a standard filling process of dewars, used for the laboratory supply at the TU Dresden. The pump characteristics show wide operating ranges with efficiencies above 50% and peak efficiencies over 80% at high-speed operation. A significant reduction in filling losses and time compared to the traditional process could be demonstrated. 

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Format PDF

Pages : 7 p.

Disponible

  • Prix public

    20 €

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    Gratuit

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Détails

  • Titre original : Development and characterization of a centrifugal pump for low-loss liquid helium transfer.
  • Identifiant de la fiche : 30031065
  • Langues : Anglais
  • Source : Cryogenics 2023. Proceedings of the 17th IIR International Conference, Dresden, Germany, april 25-28 2023
  • Date d'édition : 25/04/2023
  • DOI : http://dx.doi.org/10.18462/iir.cryo.2023.0148

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