This article examined how a variety of mechanisms (layering, Brownian motion, clustering, ballistic phonon motion, thermal boundary resistance, and mass difference scattering) affect the thermal conductivity of alumina based nanofluid. The thermal conductivity values were found using the transient plane source (TPS) method. It was found that mass difference scattering provided the most effective mechanism for reducing the thermal conductivity of the alumina based nanofluid....
Thermal conductivity of alumina and kaolin clay were investigated as a function of the water content at different stages of drying compared to linear shrinkage. Thermal conductivities of the samples were measured using the transient plane source methods. Samples were encapsulated in a polyvinyl film to ensure a constant temperature in the sample while drying. Results found thermal conductivity varied at the beginning as values increased, then decreased significantly at ...
The effects of particle size/shape, base fluid, and volumetric concentration on the thermal conductivity of nanofluids has been studied. It was found that decreasing the particle size leads to an increased thermal conductivity, and that using water as a base fluid led to the greatest enhancement of thermal conductivity. The effects of gravity, Brownian motion, and thermophoresis on particle motion were also investigated and it was found that gravity ...
