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Enhancing heat transfer in miniaturized radiators is an important goal for many researchers. In this study, silver nanofluids were employed to improve the transfer of heat in micro-pin fin heat sinks. A thermal constant analyzer measured the thermal conductivity of the silver nanofluid samples using the transient plane source (TPS) technique. Results showed that the addition of silver nanoparticles to the working fluids improved thermal conductivity, but at high concentrations, the nanoparticles increased viscosity of the base fluids which hindered heat transfer.
Cadmium sulfide (CdS) nanoparticles were dispersed in a polystyrene (PS) matrix to synthesize semiconducting optical nanocomposites for industrial applications. In this paper, many characteristics of the PS-CdS thick films were studied including thermal conductivity using the transient plane source (TPS) method. Results showed that the thermally conductive CdS nanoparticles enhanced the thermal conductivity of the nanocomposites.
In this paper, thermal properties of CdS and ZnS nanoparticles are examined to understand heat transfer behavior through polystyrene (PS) composites. The transient plane source (TPS) method was used to measure the thermal conductivities of the CdS/PS and ZnS/PS nanocomposites. Results showed that the nanocomposites followed a similar increasing trend until a common temperature where each sample adopted a constant thermal conductivity. Overall, the ZnS/PS nanocomposites showed slightly higher thermal conductivities than the CdS/PS nanocomposites.
In this study, pure eicosane and eicosane-CuO solid composites were prepared using ambient and ice-water bath solidification methods. A Thermal Constants Analyzer measured the thermal conductivity of the samples using the transient plane source (TPS) technique. Results showed that for both solidification methods, composite thermal conductivity was independent of temperature up to a point, and the composites with the highest nanoparticle concentrations had the highest thermal conductivity. Although the composites relatively all followed the same trend, the samples prepared by ice-water solidification had lower thermal conductivities than those prepared by the ambient solidification method.
Despite its fragility, poor thermal properties, and high water sorption rates, polymethyl methacrylate (PMMA) is commonly used in denture fabrication. This study aimed to examine how the addition of Aluminum oxide nanoparticles affected the properties of PMMA. A thermal constant analyzer measured the thermal properties of the Al2O3 nanoparticles using the transient plane source (TPS) method. Results showed that the thermal conductivity and thermal diffusivity of acrylic resin improved after the addition of Al2O3 nanoparticles.
