ANALYSIS OF CHARACTERISTIC OF LIQUEFACTION CYCLES OF AIR WITH EXPANDER-COMPRESSOR UNITS

Authors

  • Г. К. Лавренченко Украинская ассоциация производителей технических газов «УА-СИГМА», а/я 271, г. Одесса, Украина, 65026, Ukraine
  • С. Г. Швец Украинская ассоциация производителей технических газов «УА-СИГМА», а/я 271, г. Одесса, Украина, 65026, Ukraine

DOI:

https://doi.org/10.18198/j.ind.gases.2007.0323

Keywords:

Air separation plant, Cycle of low pressure, Cycle of average pressure, Expander-compressor unit, Liquefaction of air, Coefficient of liquefaction, Air expansion, Throttling, Recuperative heat-exchanger, Refrigerating machine

Abstract

The expander-compressor units (ECU) are more often used in tonnage air separation plants (ASP) that realizing cycles of low pressure. In ASP of average productivity they yet don't find application. The ways of inclusion ECU in throttling-expander cycles of liquefaction of air are considered. It is shown that ECU in them can provide growth of coefficient of liquefaction on 16 % at average pressure in a cycle and on 23 % — at low pressure. The use of low-temperature refrigerating machine in such cycles with ECU results in the further to increase of coefficient of liquefaction, especial in cycles of low pressure.

Author Biographies

Г. К. Лавренченко, Украинская ассоциация производителей технических газов «УА-СИГМА», а/я 271, г. Одесса, Украина, 65026

G.K. Lavrenchenko

С. Г. Швец, Украинская ассоциация производителей технических газов «УА-СИГМА», а/я 271, г. Одесса, Украина, 65026

S.G. Shvets

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Issue

No. 5 (2007): Технические газы

Section

PROCESSES, CYCLES, SCHEMES AND THE EQUIPMENT OF REFRIGERATION AND CRYOGENIC SYSTEMS

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