Dispersion stability and thermal conductivity of propylene glycol-based nanofluids
作者： Ibrahim Palabiyik , Zenfira Musina , Sanjeeva Witharana , Yulong Ding
DOI: 10.1007/S11051-011-0485-X
关键词: Atmospheric temperature range 、 Nanofluid 、 Dispersant 、 Chemical engineering 、 Polyvinyl alcohol 、 Nanoparticle 、 Particle size 、 Materials science 、 Dispersion stability 、 Thermal conductivity
摘要: The dispersion stability and thermal conductivity of propylene glycol-based nanofluids containing Al2O3 TiO2 nanoparticles were studied in the temperature range 20–80 °C. Nanofluids with different concentrations formulated by two-step method no dispersant was used. In contrast to common belief, average particle size observed decrease increasing temperature, showed an excellent over interest. Thermal enhancement for both a nonlinear function concentration independent. Theoretical analyses also performed using existing models compared experimental results. model based on aggregation theory appears be best.
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