Category: Transient Plane Source
Author(s): D. Zhu, H. Li, J. Gao, N. Wang, X. Li, X. Wang
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
DOI: 10.1016/j.cap.2007.12.008