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Development of a variable-nozzle-area radial turbine for 10-kilowatt class helium refrigerator.

[In Japanese. / En japonais.]

Author(s) : HARADA S., NISHIDA H., UEDA H., SHIKANO Y., MATSUMOTO K., OKAMOTO K.

Type of article: Article

Summary

A variable-nozzle-area radial turbine for 10-kilowatt class helium refrigerator was developed. The turbine incorporates a mixed-flow turbine impeller (outer diameter 55 mm), self-acting gas journal bearings, spiral-grooved thrust bearings, and variable flow nozzles. This turbine can deliver high overall efficiency under partial refrigeration because it has a larger adiabatic head than a conventional turbine. To achieve high adiabatic efficiency, a numerical analysis of three-dimensional compressible turbulent flow was adopted in the impeller design.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 1995-0001
  • Languages: Japanese
  • Source: Cryogenics/ Cryog. Eng. - vol. 29 - n. 1
  • Publication date: 1994
  • Document available for consultation in the library of the IIR headquarters only.

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