CALCULATIONS OF CRITICAL PARAMETERS OF PURE SUBSTANCES FROM UNITED EQUATIONS OF STATE

Authors

  • А. В. Троценко Одесская государственная академия холода, ул. Дворянская, 1/3, 65082, Одесса, Украина, Ukraine
  • А. В. Валякина Одесская государственная академия холода, ул. Дворянская, 1/3, 65082, Одесса, Украина, Ukraine

DOI:

https://doi.org/10.18198/j.ind.gases.2005.0183

Keywords:

Equation of state, Pure substance, Critical state, Spinodal, Algorithm

Abstract

The algorithm of calculation of critical parameters for pure substances from united equation of state is suggested. It is based on search of maximum point of spinodal. Shapes of isotherms in two phase region are investigated, and therefore the choice of initial approximation for temperature is grounded. The results of critical parameters calculations, carried out for different united equation of state is represented.

Author Biographies

А. В. Троценко, Одесская государственная академия холода, ул. Дворянская, 1/3, 65082, Одесса, Украина

А. V. Trotsenko

А. В. Валякина, Одесская государственная академия холода, ул. Дворянская, 1/3, 65082, Одесса, Украина

A. V. Valyakina

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Issue

No. 4 (2005): Технические газы

Section

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

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