Thermal conductivity, thermal diffusivity and specific heat are investigated for a granite rock sample from a deep borehole in central Portugal. Thirty-three samples were divided into two groups based on the degree of metasomatic alteration. It was found that the average thermal conductivity for the samples in the group comprising the less altered samples was 2.90 ± 0.26 W/m K, and for the more altered samples, the average value was 2.95 ± 0.19 W/m ...
The effects of incorporating phase change materials (PCMs) into concrete on the potential service lives of bridges were investigated. It was determined that PCMs could potentially be used in the future to reduce the effects of freeze-thaw cycles on bridges, but more work needed to be done to improve the strength of concretes containing PCMs before this could be applied. It was determined that increasing the latent heat of fusion ...
The authors have developed a numerical model for the prediction of heat transfer capabilities of protective clothing when exposed to low-level radiant heat flux in order to increase the comfort of the protective clothing used by firefighters. It was determined that the model was able to accurately predict the properties of the clothing when the results were compared to experimental observations....
High intensity focused ultrasound (HIFU) is a new noninvasive method for treating certain tumors. Tissue mimicking phantoms are used to test HIFUs because it provides real time visualization of HIFU induced lesion evolution, and can calibrate the HIFU transducers. This study investigates the thermophsyical properties of egg white phantoms at room temperature, and varying concentrations of egg white. Measurements of thermal conductivity, diffusivity, and specific heat were taken using a ...
Lime-hemp concrete (LHC) is a sustainable construction material with a low environmental impact. In this study, the thermal properties of two lime-hemp mixes with varying levels of hemp were measured to analyze the material’s ability to be used on a larger scale in cold and wet climates. A TPS Thermal Constants Analyser measured the thermal properties of the lime-hemp samples using the Transient Plane Source (TPS) method. Results showed ...
