The use of sensors for the determination of content ratio in binary mixtures of fluids was investigated. The sensors were manufactured with various layouts of metal foil encapsulated by Kapton. Due to the difference in thermal conductivity between two fluids in a mixture, the thermal conductivity of the mixture is dependent on the ratio of the fluids. This method could be used in the future in Direct Methanol Fuel Cells (...
The thermal and physical properties of concrete were investigated at high temperature to determine how these properties might change in the event of a fire. The influence of the type and content of aggregate was also investigated. It was found that the degradation and mass loss of concretes depends on the type of aggregate used. It was also determined that the porosity of concretes increases as temperature increases, and that ...
The author presents a study done on methane hydrates to determine their thermal properties. Specifically, the thermal conductivity and thermal diffusivity are investigated to determine if these hydrates would be suitable as an energy source....
The authors examine the melting and crystallization behavior of a polyethylene/boron nitride composite to understand an unexpected exothermic peak when the BN content was greater than 10 wt. %. Based on these observations, an optimal annealing temperature of the composite was investigated to enhance its thermal conductivity. The appearance of the peak was determined to depend on the different nucleated capability of the different BN aggregates in local area. An annealing ...
The thermal properties of five sandstones were measured. The sandstones were taken from the base of Khewra located in Pakistan. The thermal conductivity, thermal diffusivity, and specific heat capacity were determined using the transient plane source technique, and the porosity and density of the sandstone samples were also determined. A formula for the estimation of thermal conductivity was modified to better fit the experimental data, and it was determined that ...
