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, ...
Polyflavenoid tannin-furanic rigid foams have widespread industrial applications. The chemical and physical properties of the five main tannin-based foams are tested and compared in this paper. A TPS instrument measured the thermal conductivity of the tannin-based foams using the transient plane source (TPS) method. Results showed that the tannin foam containing formaldehyde and a low-boiling blowing agent (STD) had the highest thermal conductivity, and the foams without formaldehyde and surfactant (...
The development of hydrogen storage materials for use in light-duty vehicles is investigated in this paper, which is still a ways off until commercial use. High-pressure metal hydrides (HPMH) are specifically studied here, at varying temperatures. The transient plane source (TPS) technique is used to measure the thermal conductivity and specific heat of the prepared hydride materials. Porosity and density are also important physical factors to consider when dealing with ...
Through the use of experimental (one-sided TPS technique) and theoretical (MD simulations) methods, the thermal conductivity and thermal diffusivity of methane hydrate was studied. Varying concentrations of methane hydrate were studied. The effect of pressure on the thermal properties of methane hydrate was also studied and didn't have a significant effect on the measurement of thermal conductivity. The results obtained from the experimental and theoretical methods agreed well with each ...
The thermal conductivities of aerogels and xerogels were explored in order to determine how the solid content of each material affected the conductivity. Experimental considerations include testing at room temperature, under vacuum and also under various humidity conditions. Density was taken into account and it was found that the optimal density for the gels was 0.15 g/mL....
