Nichenko S. Influence of compressor oils on the thermodynamic properties of working fluids for refrigerating equipment.

Dissertation is dedicated to the complex experimental and calculation investigation of phase equilibrium, thermal and caloric properties on the saturation line for solutions of R-600a with mineral compressor oil Reniso WF 15A, to development of pressure-enthalpy diagrams and enthalpy-concentration diagrams, and also to research of influencing of compressor oil admixtures on the efficiency of the compressor system. The results of theoretical research of influence of oil admixtures in the refrigerant on the efficiency of refrigeration machine working with the real working fluid R-600a/Reniso WF 15A are presented. It is shown that the presence of oil admixtures in refrigerant results in the decrease of refrigerating efficiency and coefficient of performance. Practical recommendations are developed for providing of normal circulation of oil admixtures circulating through the refrigeration system.