A complex investigation of the nanofluids R600а-mineral oil-AL2O3 and R600а-mineral oil-TiO2. Thermophysical properties |
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| Affiliation: | 1. Simon Fraser University, Mechatronic Systems Engineering Department, Surrey, BC, Canada;2. College of Engineering, University of Tehran, Tehran, Iran;1. Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, China;2. Jiangsu Provincial Key Laboratory of Solar Energy Science and Technology, School of Energy and Environment, Southeast University, Nanjing, China |
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| Abstract: | This paper presents experimental data for the density, solubility, viscosity and capillary constant for solutions of the natural refrigerant isobutane (R600a) with mineral compressor oil and nanoparticles Al2O3 and TiO2 over a wide range of temperatures and concentrations. Based on obtained information for the capillary constant, the surface tension of the solutions isobutane/mineral oil/Al2O3 nanoparticles and isobutane/mineral oil/TiO2 nanoparticles is determined. SP-QSPR (Scaling Principles–Quantitative Structure Property Relationship) model has been successfully applied for fitting the experimental data obtained for solutions of isobutane with mineral compressor oil and nanoparticles Al2O3 and TiO2. It was shown that the nanoparticle additives lead to increase of the viscosity and reduce surface tension of the refrigerant/oil solutions. |
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