Recommendations on calculation of transport coefficients and thermodynamic properties of helium-xenon gas mixtures

Highlights: • Semi-empirical correlations. • Calculation of density. • Calculation of dynamic viscosity coefficient. • Calculation of thermal conductivity coefficient. Calculation of specific thermal capacity at constant pressure. • Calculation of thermal capacity at constant volume. - Abstract: This paper discusses the results of a review of computational and experimental studies on the transport coefficients and thermodynamic properties of helium-xenon gas mixtures. The most promising in the authors' opinion is a combination of approaches pertaining to the kinetic Chapman-Enskog theory and the theory of corresponding states of dense gas. This integrated approach yielded semi-empirical correlations for calculation of density, dynamic viscosity coefficient, thermal conductivity coefficient, specific thermal capacity at constant pressure and constant volume. These correlations account for the influence of temperature and pressure as well as for the proportion of mixture components. However they appear in a form unsuitable as yet for practical calculation of transport coefficients and thermodynamic properties of helium-xenon mixtures. In other words, it is still necessary to develop computation algorithms with indication of the calculation sequences, explanation/interpretation of the expressions for the first and second derivatives of the associated model parameters, etc. The authors of the present paper developed such algorithms on a model of corresponding states of dense gas (CSDG), proceeding from the above semi-empirical relations. These algorithms are compatible with the simplified procedure which disregards the mixture composition effect and makes allowance for the influence of temperature and pressure by means of simple polynomial formulae.