Experimental study on the effect of biopolymers on the thermal properties of soil and thermal diffusion analysis using COMSOL Multiphysics
Experimental study on the effect of biopolymers on the thermal properties of soil and thermal diffusion analysis using COMSOL Multiphysics
The thermal conductivity of soil is important in many areas of geotechnical engineering, including the design of ground source heat pumps (GSHPs), borehole thermal energy storage (BTES), and underground transmission pipelines, etc. Although many studies have been conducted to improve thermal conductivity, most of them have been conducted by mixing materials with soil, such as stone powder, fly ash, and cement, which may have environmental problems. To solve this problem, this study assessed the thermal conductivity of eco-friendly biopolymers mixed with soil. In addition, the thermal conductivity of these soil-biopolymer mixtures was assessed when tiny amounts of graphite and fly ash were added. It was confirmed that the biopolymer and graphite were effective in increasing the thermal conductivity of the soil.
Hwijae Lee; G. Y. Kim; Jun-Hyeok Yum; Ilhan Chang
2025 International Conference on Bio-mediated and Bio-inspired Geotechnics (ICBBG2025)
Special symposium: Biopolymer treated soils
https://doi.org/10.53243/ICBBG2025-107
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