The present study look at the creation of unfilled and carbon nanofibre (CNF)-filled polypropylene (PP) foams, and their subsequent testing of thermal and mechanical properties. The testing of thermal properties was accomplished by the TPS Technique and determined that when using up to 20 wt.% CNF as filler there was no increase in thermal conductivity of any of the sample foams. Therefore it was decided that it was the foamed ...
The effective thermal conductivities of open and closed-cell aluminium foams are measured by numerical, analytical and experimental methods. These methods are represented by the Hot Disc method, computed tomography (CT) and thermal Lattice Monte Carlo (LMC) analysis. Furthermore, the report includes experimental measurements of open-cell-M-pore and closed-cell Alporas cellular aluminium. All the results are then compared....
A series of Al2O3-water nanofluids were synthesized and their thermal conductivities were evaluated under different pH values and concentrations of surfactant (SDBS) using the Thermal Constants Analyzer. All the properties studied were found to have a strong effect on the measured thermal conductivity. By using the procedure listed in the report, the thermal conductivity of Al2O3-water nanofluids can be increased by 10% with the use of only 0.0015 ...
The addition of Cu nanoparticles to water was studied at different pH values and different dispersant concentrations by the measurement of zeta potential and absorbency. Thermal conductivity was measured. It was found that the ideal properties of the nanofluid were obtained at pH 9.5....
The authors measured the thermal conductivity of a couple molten metals, namely bismuth and tin. This was accomplished by using a molybdenum sensor placed in between two aluminum nitride plates (to protect the molybdenum sensor from the high temperature of the molten metals. The thermal conductivities were measured during a short-duration of microgravity (to look into the thermal convection effect happening during the measurement) as well as in regular gravity. ...
