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Through the addition of copper oxide nanoparticles to cyclohexane in varying concentrations, a series of nano-enhanced phase change materials (NePCM) were prepared. The transient plane source (TPS) technique was used to characterize the NePCM at multiple temperatures. It was determined experimentally that increasing concentrations of nanoparticles in the liquid phase resulted in increasing thermal conductivity, but increasing nanoparticle concentration in the solid phase didn't have the same effect.Unidirectional freezing ...
Copper powder was used a filler and added to a polyamide matrix in order to generate copper reinforced polyamide composites. The copper powder came in three different forms: short fibers, plates and spheres. The short fibers were added to the polyamide matrix at a vol.% up to 30, and the plates and spheres up to 60 vol.%. Thermal conductivity was measured and it was found that at filler amounts below 10 vol.% the ...
Polyoxymethylene (POM) composites were prepared by using varying concentrations of copper particles and tested thermally via tribologically via an M-2000 friction and abrasion testing machine. A copper concentration below 10 wt.% didn't affect the thermal properties of the POM composite but using higher concentrations resulted in improved thermal conductivities. Using a copper concentration of 25 wt.% resulted in a thermal conductivity value 35.9% higher than unfilled POM. In addition to the improved thermal ...
An organic phase change material (PCM), tetradecanol (TD), infused with copper nanowires (CuNWs), was sent through a slurry of tests, to determine the effect of the ultra-high aspect ratio and sponge nature of the CuNWs, on the PCM. Experimental testing alluded to the increased thermal conductivity of the PCM, with the addition of the CuNWs. The addition of CuNWs, enhanced the thermal conductivity of the PCM by nearly 9 times. A ...
