Nanofluids are used to improve the thermal conductivity of heat transfer fluids. This study examined the effects on thermal conductivity of zinc oxide (ZnO)/ethylene glycol + water nanofluids as increasing concentrations of ZnO nanopartilces were added to the solution. A Thermal Constants Analyzer (TPS) measured the thermal conductivity of the nanofluids using the Transient Plane Source (TPS) method. As expected, the thermal conductivities of the solutions increased with nanoparticle concentration, ...
The expanding production of polymeric materials is causing plastic waste to become a growing concern. This study aimed to fabricate cement and mortar composites that contained plastic in an attempt to extend the life of non-reusable plastics. The thermal conductivity of the composite material was measured using the transient plane source (TPS) technique. Results showed that as expected, thermal conductivity decreased as the plastic content in cement and mortar composites ...
Metal foams are materials composed of a solid grid with air-filled pores, and have applications in combustion chambers of gas turbines. In this study, the thermal properties of porous metal foams were tested to determine their usefulness in heating and cooling systems. The Transient Plane Source (TPS) method was used to measure the thermal conductivity of porous metallic foams. Because the porous foams were not as compacted as the dense ...
Elevated temperatures enhance the drug delivering ability of many transdermal delivery systems (TDS). This paper uses an in vivo method to examine the effects of heightened temperature on TDS, which can be applied to in vitro research. A Thermal Constants Analyzer measured the thermal conductivity and thermal resistivity of the TDS using the transient plane source (TPS) method at 40°C. The experimental in vivo thermal resistivity results for skin were ...
Ice surfaces dictate energy usage in skating rinks because they are the largest heat exchangers in the building. This study aimed to improve the concrete material used in ice rinks to maximize the performance of their refrigeration systems. The TPS method measured the thermal conductivity and thermal diffusivity of the improved concrete using the Transient Plane Source (TPS) method. Results indicated that adding iron ore to the concrete might improve ...
