Through the addition of synthetic graphite particles and carbon fiber to nylon 6,6 in amounts of 10-40 wt.% and 5-40 wt.% respectively, nylon composites were prepared. These composites were then analyzed using the guarded heat flow apparatus to measure through-plane thermal conductivity. Then the transient plane source (TPS) technique was used to measure the through-plane and in-plane thermal conductivities of the composites to compare to the guarded heat flow apparatus. A ...
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 ...
The researchers propose an improvement in the theory of the transient plane source (TPS) technique. They claim that Gustafsson has ignored the contribution of the electrical resistance charge of the nickel double spiral and the heat capacity of the polyimide film surrounding the nickel spiral. The researchers developed improved mathematical equations to supposedly improve the accuracy of the technique by 1.8 to 2.3%....
The authors set out to prepare cellular vitreous carbon (CVC) foams with varying thermal and physical properties. This was accomplished by using tannin-based resin modified by different isocyanates in varying amounts. Three different experimental procedures were used to prepare foams with different physical and thermal properties. Physical properties of the foams studied include density, as well as pore volume, pore size and cell diameter. The transient plane source (TPS) technique ...
Two series of nanofluids were prepared by the researchers, using water as the carrier fluid, and Al2O3 and TiO2 as the nanoparticles; up to 6% particle volume fraction was used. The thermal conductivity and thermal diffusivity of the nanofluids were measured using the transient plane source (TPS) technique, and dynamic viscosity was also measured. The amount of nanoparticle volume fraction affected the value of thermal conductivity, but the nanoparticle cluster ...
