Thermal Conductivity of Unsaturated Soils
Heat transfer through soils is a fundamental process in many energy geosystems such as shallow geothermal heat exchangers, energy piles, buried high-voltage power cables in wind or solar energy applications, and subsurface thermal energy storage systems. In these and other applications in the growing field of energy geotechnics, thermal conductivity of unsaturated soils is critical for the performance of these energy geosystems involving coupled heat and moisture transport phenomena. There is considerable basic research need to more effectively link the fundamental soil thermal behavior to the soil (e.g., soil types and water content), environmental (e.g., temperature), and construction (e.g., stress) factors.
This paper highlights application of the C-Therm TCi Thermal Conductivity Analyzer.
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