In this study, three series of high-volume fly ash (HVFA) mortars and concretes were studied using the transient plane source (TPS) technique. Each series of sample contained varying weight % of fly ash from 0 to 75%. The three sample sets were prepared by different laboratories and the results were compared. Thermal conductivity and specific heat capacity were measured, and the authors detailed their method of doing this. It was determined that the ...
Using a combination of transient plane source (TPS) technique and slug calorimetry, 4 commercially available fire resistive materials (FRMs) are studied from room temperature to 1000°C. The materials studied in this report are two gypsum-based and two calcium-silicate based materials. These materials are heterogeneous and thus when heated to elevated temperatures, the microstructure of the materials may be compromised and various reactions and phase changes may take place over the course ...
The authors used the transient plane source technique for measuring the thermal conductivity, diffusivity and specific heat of highly porous materials. This paper helped to demonstrate that the newly developed TPS technique wasn't just for the measurement of isotropic bulk materials. Different samples of wood composites were analyzed. Once measurements were obtained using the TPS method, they were compared to results obtained theoretically using Verma's model for prediction of thermal ...
Paper that presents a slightly modified version of the early transient plane source technique which allowed the easier measurement of thermal transport properties of solid materials. A series of building materials were tested spanning thermally conductive to thermally insulating materials including extruded polystyrene, polymethyl methacrylate (PMMA), stainless steel and aluminum. This modified method allow the measurement of thermal conductivity values from 0.02 W/mK to 200 W/mK....
This study looks at U-values and heat transfer for houses built in Libya, of which the majority studied were built in the 1970's when the locally produced building materials didn't consist of any insulating materials. Measurements of thermal conductivity of the various building materials were made. Additionally, the researchers developed a theoretical model that could estimate U-values from measured thermal conductivity values. It was determined that U-values were quite high, ...
