Using magnetic striation and ultrasonic agitation, aluminum nitride particles were dispersed into ethanol. The method was used to measure the thermal conductivities of these aluminum nitride-ethanol nanofluids. Results show about 20 % increase in the thermal conductivity of ethanol and a strong temperature dependence of the thermal conductivity....
To evaluate the effect of climate change on the stability of methane hydrates in the seafloor, thermal conductivity measurements were performed in hydrate-bearing sediment. Using the renormalization and labeling technique methods, alongside of a thermal constants analyzer, the effective thermal conductivity (ETC) of methane hydrate-bearing sand and tetrahydrofuran (THF) hydrate-bearing sand were measured and found to be 1 W/mK and 2 W/mK, respectively. The thermal ...
The thermal conductivity and thermal diffusivity of SRP (sisal-reinforced polyethylene), GRP (glass-reinforced polyethylene), and GSRP (sisal/glass hybrid fibre-reinforced polyethylene) were tested from 120 to 350K. Results showed variances in thermal conductivity values with varying temperatures in materials containing different orientations of sisal fibres. Due to the anisotropic nature of the SRP fibre, there is a difference in the thermal conductivity readings from the parallel to the perpendicular direction. The GRP ...
Thermal transport properties were measured with the Thermal Constants Analyser. Various parameters were set in place during the experiment including output of power, temperature, and heat flow. Measurements took place on sheets of insulating materials with specialized sensors as this is an importance when measuring thermal conductivity....
Barium titanate-based ceramics are most commonly found in electronics as dielectric layers in multilayer ceramic capacitors. Two different forms of Barium titanate-based ceramics were analyzed in this article to determine heat capacities as a function of temperature. The thermal conductivities and thermal diffusivities of these two forms were also determined using the Hot Disk Transient Plane Source method. Inferences towards the performance and reliability of barium titanate-based ceramics under various ...
