Motovyi I. Caloric properties of the nanofluids promising for application in industrial energy.

The thesis is devoted to experimental investigation of the thermodynamic properties of the model system of isopropyl alcohol (IPA) / Al2O3 nanoparticles, the real working fluid of vapor compression refrigeration systems (solutions of R600a coolant / compressor oil), as well as multicomponent fluids based on aqueous propylene glycol solutions with the additives of Al2O3 nanoparticles. In thesis, the effect of Al2O3 nanoparticles on the pressure and density of isopropyl alcohol was experimentally studied, and effect of C60 fullerenes on the heat capacity of compressor oil was evaluated. For obtained experimental data, an analysis of uncertainties was performed, the temperature and concentration dependences of the research objects were examined. Using obtained experimental information, a three-phase model for predicting the heat capacity and density of the nanofluids was developed and the thermodynamic properties of R600a coolant solutions with compressor oil were calculated.