Thermally conductive nanoparticles are often added to conventional fluids to improve thermal properties. In this paper, the effect of small concentrations of multiwalled carbon nanotubes (MWCNTs) on thermal conductivity over a range of temperatures was tested. A Thermal Constant Analyser measured the thermal conductivity of the nanofluids with the transient plane source (TPS) method from 10 to 80 °C. Results showed that thermal conductivity of the nanofluids increased with temperature, and with ...
Selenium (Se) and tellurium (Te) based glasses have unique physical and chemical characteristics that can be manipulated with by the addition of metal alloys. In this study, the thermophysical properties of Se80Te20 and Se80Te10M10 (where M = cadmium (Cd), indium (In), and antimony (Sb)) chalcogenide (containing one or more S, Se, or Te) glasses are investigated to test their use in industrial applications. The transient plane source (TPS) ...
Water is being used to absorb incident light for use in solar power applications. Adding nanoparticles to water improves the solar collection efficiency. In this paper, a Thermal Analyzer measured the thermal conductivity of the nanofluids using the transient plane source (TPS) method. Results showed that the thermal conductivity of the nanofluids increased with temperature and nanoparticle concentration....
Controlling the temperature of electronics under harsh conditions is important for vehicular, aerospace, and other industrial applications. Phase change materials (PCMs), such as paraffin, use latent thermal energy storage (LTES) to store large amounts of latent heat over small temperature ranges, and are being investigated for use in industrial sectors. However, PCMs have low thermal insulation capabilities so porous matrices with low thermal conductivities are often used to decrease the ...
Ethyl alcohol based secondary heat transfer fluids are typically used in ground source heat pumps (GSHPs) in Sweden because of their attractive thermophysical properties and low toxicity. Denaturing agents must be added to ethyl alcohol based secondary fluids, and in Europe, the most commonly used are: propyl alcohol, n-butyl alcohol, methyl ethyl ketone, and methyl isobutyl ketone. In Sweden, only propyl alcohol and n-butyl alcohol can be used because of ...
