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COOL-DOWN CHARACTERISTICS OF HELIUM LIQUEFIER WITH TURBO-EXPANDERS.

[In Japanese. / En japonais.]

Author(s) : NAKAYAMA Y., MATSUMOTO T., SATO S.

Type of article: Article

Summary

DURING COOL-DOWN OPERATION OF A HELIUM LIQUEFIER, TURBO-EXPANDERS ARE MOST SUSCEPTIBLE TO MECHANICAL DAMAGE RESULTING FROM THE EXTREME OPERATING CONDITIONS. GROWTH AND DISTRIBUTION OF INTERNAL TURBINE LOSSES WERE THEREFORE CALCULATED BASED ON INLET TEMPERATURE TRANSITIONS. THESE WERE PREDICTED BY ASSUMING A STEADY STATE IN THE LIQUEFIER. PREDICTED TURBINE PERFORMANCE WAS COMPARED WITH ACTUAL MEASURED DATA. A SIMPLIFIED METHOD IS PROPOSED TO CORRELATE MEASURED TURBINE PERFORMANCE ON THE MANUFACTURER'S TEST STAND WITH THEIR LIQUEFIERS THAT HAVE DIFFERENT COOL-DOWN CHARACTERISTICS.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 1988-2162
  • Languages: Japanese
  • Source: Cryogenics/ Cryog. Eng. - vol. 23 - n. 1
  • Publication date: 1988
  • Document available for consultation in the library of the IIR headquarters only.

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