THE EFFICIENCY INFLUENCE OF WARM GAS BOOST INTO THE FLOWING CHANNEL OF A CRYOGENIC TURBO-EXPANDER

Authors

  • А. Б. Фетисов ОАО «Криогенмаш», пр. Ленина, 67, г. Балашиха Московской области, РФ, 143907, Russian Federation
  • Е. Н. Смирнов ОАО «Криогенмаш», пр. Ленина, 67, г. Балашиха Московской области, РФ, 143907, Russian Federation

DOI:

https://doi.org/10.18198/j.ind.gases.2010.0522

Keywords:

Cryogenic turbo-expander, Labyrinth seal, Boost, Leakages, Efficiency, Air, Helium

Abstract

The decrease of cold losses caused by chilled gas escape on a machine shaft in cryogenic turbo-expanders can be reached by the warm gas boost. At the same time warm gas can probably get into a flowing part. There is a way of a quantitative assessment of warm gas boost into the turbo-expander nozzle-rotor space efficiency influence. It has been shown that the more is the decrease of measured isentropic efficiency, the less are the temperature and the working gas flow at the turbo-expander entrance.

Author Biographies

А. Б. Фетисов, ОАО «Криогенмаш», пр. Ленина, 67, г. Балашиха Московской области, РФ, 143907

A.B. Fetisov

Е. Н. Смирнов, ОАО «Криогенмаш», пр. Ленина, 67, г. Балашиха Московской области, РФ, 143907

E.N. Smirnov

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Issue

No. 5 (2010): Технические газы

Section

PLANTS AND THE EQUIPMENT FOR MANUFACTURING OF AIR SEPARATION PRODUCTS AND OTHER INDUSTRIAL GASES

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