Calculation of binodal lines for a multicomponent mixture by the homotopy method

Abstract

Equations are proposed for binodal lines of a multicomponent mixture in the T -P and P -V planes. A numerical method for solving the equations of the thermodynamics model is described, which is based on the homotopy method and uses the physical parameters of the system, in particular, temperature and pressure, as parameters of continuation of solution. Calculation results illustrating the features of the phase states of binary and multicomponent mixtures are presented.