Category: Transient Plane Source
Keywords: absorbency, Al2O3-H2O, Aluminum oxide hydrate, Aluminum oxide hydrate (Al2O3-H2O), attractive and repulsive potentials, concentration, Derjaguin-Landau-Verwey-Overbeek, Derjaguin-Landau-Verwey-Overbeek (DLVO) theory, dispersion behaviors, DLVO, Inter-particle interaction potentials, nano-suspensions, Nanofluids, Nanoparticles, particle size, pH levels, SDBS, sedimentation kinetics, sodium dodecylbenzenesulfonate, Sodium Dodecylbenzenesulfonate (SDBS), Solids, theory, Thermal Conductivity
Abstract: The field of nanofluids is relatively new, however researchers in this article aimed to research their thermal conductivity and dispersion behaviours. A nanofluid consists of free-floating, solid nanoparticles suspended in a base fluid. Specifically, Al2O3-H2O nanofluids were investigated in this study. Using a thermal constants analyzer, the thermal conductivities of various modifications of nanofluids were measured. Research concluded that pH and concentrations of SDBS dispersants have a great impact on the thermal conductivity of the nanofluid. The nanofluid had a considerably higher thermal conductivity than the base fluid itself, and with a weight fraction of 0.0015 (0.15%) of Al2O3, the thermal conductivity increased by 10%.
Reference: Current Applied Physics 9 (2009) 131-139