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Development and characterization of a centrifugal pump for low-loss liquid helium transfer.
Number: 148
Author(s) : DÖLL J., KLÖPPEL S., HABERSTROH C.
Summary
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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Details
- Original title: Development and characterization of a centrifugal pump for low-loss liquid helium transfer.
- Record ID : 30031065
- Languages: English
- Source: Cryogenics 2023. Proceedings of the 17th IIR International Conference, Dresden, Germany, april 25-28 2023
- Publication date: 2023/04/25
- DOI: http://dx.doi.org/10.18462/iir.cryo.2023.0148
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Indexing
- Themes: Applications of liquified gases
- Keywords: Liquid helium; Transfer; Pump; Design; Efficiency; Expérimentation
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