Wrinkles commonly form in geomembrane-based liners system due to exposure to the fluctuations of solar radiation. Generally, air-gaps are present underneath the wrinkles in the geomembrane if devoid of defects. These air-gaps have low thermal conductivity, which may lead to a reduction of the temperature gradient across the liner including the subgrade soil. This paper presents a two-dimension numerical analysis of heat transfer for a geomembrane-geosynthetic clay liner composite liner system. The 2-D numerical analysis of heat transfer shows that the positive effect of the air-gap was minimised due to the lateral heat transfer. Two-dimensional finite element predictions have confirmed that the air-gaps may not significantly reduce the heat transfer towards the subgrade soil.
CITATION STYLE
Tincopa, M., Bouazza, A., & Rowe, R. K. (2018). Heat transfer in a geosynthetics composite liner system containing wrinkles. In Springer Series in Geomechanics and Geoengineering (pp. 1316–1319). Springer Verlag. https://doi.org/10.1007/978-3-319-97115-5_91
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