The purpose of this study was to look at the effective thermal conductivity (ETC) of coking coal, sandstone and foamed concrete existing in extreme thermal environments. Thermal-physical properties were measured under various conditions: fully water saturated, after saturation during air-drying, and oven-drying at 105°C. Results showed thermal conductivity increased with increasing moisture content, and sandstone had the highest mean thermal conductivity value of the three materials....
This paper summarizes the measuring method of thermal conductivity of rocks and the parameters controlling the transport and exchange of thermal energy. The transient plane source method was analyzed and found to have advantages over other methods, such as short test times and the ability to measure solid, liquid and powder materials. Thermal conductivity of rock was tested using an instrument. Results show thermal conductivity of rock in a saturate ...
