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 ...
This article describes an attempt to modify the transient line source probe to be useful in making in-situ measurements in the field. The field of construction, as well as many others would benefit if a new thermal probe could be applied to uncontrolled environments. Three case study buildings have been considered to ascertain the validity and reliability of this new technique in ...
Compacted bentonite and a bentonite–sand mixture have been considered as a potential buffer material for nuclear waste stored underground. The effects of dry density, water content and sand fraction on the thermal conductivity of the mixtures were investigated via data collected with the transient line source technique. With those parameters known, a single expression for the thermal conductivity of the mixture ...
The transient line source technique was used to take thermal conductivity measurements over the entire liquid range of toluene at 1atm. Unlike any other liquid (with the exception of water) the thermal conductivity was not completely a linear function of temperature. Instead, there was an anomaly pre-freezing where the thermal conductivity dropped from what was expected. This paper attributes this behavior to ...
Testing of thermal properties of foods is essential for operation and control of food processing plants. In this paper, the thermal conductivity of rice and the drying of cooked rice is measured. These measurements are determined using a transient line source over a temperature range of 50-70°C, a moisture content range of 10-70%, packing density range of 500-850 Kg/M3Author(s):M. N. Ramesh
