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http://dx.doi.org/10.12814/jkgss.2014.13.4.045

Experimental and Numerical Investigation of the Performance of Vertical Thermosyphon for Frozen Ground Stabilization  

Lee, Jangguen (Geotechnical Engineering Research Division, SOC Research Institute, Korea Institute of Civil Engineering and Building Technology)
Lee, Chulho (Geotechnical Engineering Research Division, SOC Research Institute, Korea Institute of Civil Engineering and Building Technology)
Jang, Changkyu (University of Science and Technology)
Choi, Changho (Geotechnical Engineering Research Division, SOC Research Institute, Korea Institute of Civil Engineering and Building Technology, Geo-space Engineering Dept., University of Science and Technology)
Publication Information
Journal of the Korean Geosynthetics Society / v.13, no.4, 2014 , pp. 45-56 More about this Journal
Abstract
Frozen ground in cold region consists of an upper active layer and lower permafrost which is permanently frozen land. During the summer season, the air temperature is high enough to make the frozen ground melt, which causes the reduction of soil strength and thaw settlement. These phenomena result in structural instability, so it is necessary to apply frozen ground stability techniques. Thermosyphon is a closed natural two-phase convection device to maintain the ground temperature below $0^{\circ}C$ by extracting heat from the ground and discharges it into the atmosphere. Experimental and numerical investigation has been performed to estimate the effect of the refrigerant filling ratio in thermosyphon using R-134a refrigerant and the thermal conductance of the thermosyphon.
Keywords
Thermosyphon; Thermal conductance; Frozen ground; Experiment; Numerical Investigation; Ground Stability;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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