Experimental Research of C60 Fullerene Influence on Saturated Vapors Pressures and Surface Tension of R600a Refrigerant and Compressor Oil Solutions

The results of an experimental study of the effect of C60 fullerene impurities on the saturated vapor pressure and surface tension of R600a / mineral oil solutions are presented. Studies were carried out in the temperatures range 283-353 K, at oil concentrations in the solution of 0.25; 0.5; 0.75 kg / kg and fullerenes in oil 2·10-3 kg / kg. It is shown that the impurities of fullerenes in refrigerant / oil solutions contribute to the reduction of surface tension. This effect should be taken into account in assessing the prospects for the use of nanotechnology in refrigeration equipment.