This paper discussed the creation of ceramic foams with various amounts of agar added. The foams used fly ash as the raw material in order to make them more environmentally friendly. The authors hoped that this successful use of fly ash could help to recycle that vast amounts of it that are produced each year. The effect of the various agar additions on the thermal conductivity of the foams was ...
This article describes a thorough investigation of the physical and thermal properties of lignin based polyurethane building materials. The materials were created with lignin polyol and isocyanate. Factors investigated included compressive strength, thermal conductivity, burning behaviour, and morphology. The authors determined that compressive strength depended on the amount of lignin in the material, the sample containing 30% lignin had the highest strength. The thermal conductivity of the sample with the highest ...
This study outlines the design of a final repository for nuclear waste in bedrock, by the Swedish Nuclear Fuel and Waste Management Company. Thermal property testing is required to determine the canister separation distance within the repository. The transient plane source thermal constants analyzer was used to determine the thermal conductivity of anisotropic metagranite on a small-scale (centimeter), while a large-scale experiment was used for the large-scale (meter). The results ...
When testing the thermal conductivity of moist specimens, an analysis of heat and mass transfer must be conducted. Thermal conductivity measurements require a temperature gradient within the sample, however when measuring moist materials, the temperature gradient causes the moisture to be transported and dispersed within the material. During testing, phase changes can also be experienced, which may lead to latent heat. For this experiment, the thermal properties of moist autoclaved ...
Zeolites are highly insulative, porous minerals. Due to their insulating nature, heat transfer and therefore thermal conductivity is greatly impacted. With the help of a transient plane source (TPS) thermal constants analyzer, researchers tested the ability of zeolites to conduct heat when containing thermally conductive additives. This research mainly focused on metallic, ceramic and carbonaceous additives. The research conducted has shed light on the design of new porous composites experiencing ...
