DESCRIPTION OF PHASE EQUILIBRIUM IN BINARY MIXTURES AS WORKING BODIES OF REFRIGERATING AND CRYOGENIC SYSTEMS

Authors

  • Г. К. Лавренченко ООО «Институт низкотемпературных энерготехнологий», а/я 188, г. Одесса, Украина, 65026, Ukraine https://orcid.org/0000-0002-8239-7587
  • О. В. Дьяченко ООО «Криоин Инжиниринг», Таможенная пл., 1А, г. Одесса, Украина, 65026, Ukraine https://orcid.org/0000-0001-5999-3965

DOI:

https://doi.org/10.18198/j.ind.gases.2016.0849

Keywords:

Refrigerating machine, Cryogenic plant, Binary mixture, Phase equilibrium, Fugacity, Dissolvability, Universal equation of state

Abstract

Binary mixtures are used as working bodies in refrigerating and cryogenic systems. A general description of the main types of phase equilibria in the mixtures that can be used in effective refrigerating machines and cryogenic plants is given in the paper.  Developed technique is described and a reliable algorithm for calculating phase equilibria in binary mixtures of liquid-vapor, liquid-liquid and liquid-liquid-vapor in different concentrations, including those which correspond to  binary heterogeneous or homogeneous azeotropes is presented. The technique does not impose any special requirements to the form of state equations. It is only necessary for the equation of state to describe the liquid and vapor, and satisfy the accuracy of the description of thermal and thermodynamic properties of mixtures.

Author Biographies

Г. К. Лавренченко, ООО «Институт низкотемпературных энерготехнологий», а/я 188, г. Одесса, Украина, 65026

G.K. Lavrenchenko, Doctor of Technical Sciences

О. В. Дьяченко, ООО «Криоин Инжиниринг», Таможенная пл., 1А, г. Одесса, Украина, 65026

O.V. Diachenko, Candidate of Technical Sciences 

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Issue

Vol. 16 No. 6 (2016): Технические газы

Section

THERMOPHYSICAL PROPERTIES OF GASES AND THEIR MIXTURES. THERMODYNAMIC ANALYSIS OF PROCESSES IN LOW-TEMPERATURE SYSTEMS

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