This work introduces a direct method for measuring the specific heat of solids, using the Transient Plane Source Technique (TPS). To begin, a sample is placed into a thermally conductive holder, surrounded by a thermally insulating material. A thermally conductive sample holder is used, to limit the time it takes to achieve a temperature equilibrium between the holder and the sensor. Insulating the sample holder is to minimize heat loss ...
Author(s): E. Karawacki, N. S. Saxena
Using a solid hot stretching technique, highly-oriented polyoxymethyelen (POM)/multi-walled carbon nanotubes (MWCNTs) composites were created. Thermal properties were analyzed both in the stretched and through-plane directions. Researchers found that by increasing the draw ratio, to as high as 900%, the thermal conductivity of the composite has improved in the stretching direction, when compared to the material prior to this process. Researchers also determined that the thermal conductivity of the MWCNTs ...
Author(s): Lin Ye, Xiaowen Zhao
This research article delves into the thermal conductivity monitoring of open-cell foams. The foams are created through an intense procedure, in which slip reaction foam sintering is employed. Prior to measuring the thermal conductivities of the foams, a multiscale approach, taking into consideration the homogenization method, was used to predict thermal conductivity values. To obtain experimental results, the Transient Plane Source method was then used to determine the thermal conductivity ...
Author(s): G. Laschet, J. Sauerhering, J. Scheele, O. Reutter, T. Fend, Thomas Fend
In the building and construction industry today, weather resistant and flame resistant materials have become fundamental. As such, silicone coated materials have been intensively researched, as they increase a given materials resistivity to heat and flames. Due to complications and time constraints when testing coating technologies in a lab setting, more enforcement has been placed on numerical methods. Based on stitching patterns, geometry models of the material and heat transfer ...
Author(s): H. Wang, N. Zhang, X. Zhao, Z. Zheng
This article highlights two assumptions of TPS the technique; the probe is thermally neutral, and the heat transfer is conductive. The researchers of this article mention an uncertainty of using a technique for measuring low-density and highly insulative materials. Accordingly, numerically noised thermograms of the thermal responses were recorded and applied during measurements, and the best-fitting procedure of a technique was applied. From this, it was determined that the presence ...
Author(s): D. Baillis, E. Coment, G. Flasquin, R. Coquard
