European Large Scale Helium Refrigeration

  • Hans H. Quack

Abstract

The largest installations for operation at liquid helium temperatures are presently being built in support of research in high energy physics or nuclear fusion. The associated refrigerators are normally being specified for peak refrigeration requirements. So they have spare capacity, which could be used for other investigations, e.g. for High Reynolds or Rayleigh Number research. Details are being presented of 7 systems, which are in operation or are in the planning stage in Europe. In the process of the design of these refrigerators, special machines had to be developed, which operate at low temperatures: high speed turbo expanders, liquid helium pumps and so called cold compressors. Some of the features of these machines could be used to develop circulation blowers for cryogenic wind tunnels.

Keywords

Europe Transportation Helium Boiling Liquefaction 

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Copyright information

© Springer-Verlag New York, Inc. 1998

Authors and Affiliations

  • Hans H. Quack
    • 1
  1. 1.Technische Universitaet DresdenDresdenGermany

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