Insulating materials were made from recycled clay waste using technologies developed by the author were tested for their
thermal conductivity using the transient line source technique over a temperature range of 0-60°C. The clay used was mainly composed of kaolinite. A weight reduction was obtained by using wood aggregates. Different weight percentages of wood aggregates (0, 25, 30, 40, 50%) and the thermal conductivity curves are ...
Author(s): A. Bouguerra, A. tWnt de Roodenbeke, Qubneudec M., R. M. Dheilly
The transient line source probe needle has become a very common tool for measuring the
thermal conductivities of soils and some rocks. However, field measurements using this technique can be difficult with densely packed soil and rock, as the process of inserting the probe can disturb the surrounding sample or damage the equipment. This article investigates the effects of drilling a hole ...
Author(s): Hee-Hwan Ryu, Jung Chan Choi, Ki-Il Song, Seunghun Baek, Sojeong Lee, Tae-Hyuk Kwon
Aqueous foams with densities from 0.03 to 0.2 g/cm
3 were studied for their
thermal conductivity. It is important to determine an aqueous foam's thermal response because it is often used as a geothermal drilling fluid. In this paper, both helium and nitrogen foams were used each with a different bubble size range. The data was collected using transient line source probe ...
Author(s): A. Ortega, P. E. Havey, W. D. Drotning