Simulation of Ground Heat Exchanger for Cryogenic ApplicationsF. Bergeron, P. Pasquier
École Polytechnique de Montréal, Montréal, QC, Canada
Ground freezing techniques using liquid nitrogen are commonly used in order to increase the mechanical properties of the soils. This article presents a new ground heat exchanger using aluminum to increase the effective radius of the heat exchanger. Simulation results indicate that the current design generates a significant thermal short-circuit between the circulation pipes that must be diminished before its commercial use.