Simulation-Based Analysis of a Novel CO2 Ground Source Heat Pipe (GSHP) to Reduce Temperature Fluctuations in Pavements in Different Climatic Conditions

A fully wicked ground source heat pipe (GSHP) is numerically employed and simulated to transfer thermal energy from the subsurface surface pavements reduce environmental temperature fluctuations in pavement, thereby reducing stresses increasing pavement life. The GSHP can also or eliminate snow ice buildup on surfaces. Each single was modeled a two-dimensional axisymmetric cross-section using COMSOL software, which employs finite element method. consisted of two parts: disk shape buried below surface, connected cylindrical part embedded vertical underground borehole. model validated against published experimental data. simulation results demonstrated that behavior system during cold season could six various climate zones. addition insulation along length found significantly loss between heated unheated low conductivity material decreases performance system. Finally, maximum-minimum normalization method applied parametric analysis normalize compare for future use.