Study on Optimization of Energy Pile System for Snow Melting on Airport Pavement

In this study,by means of numerical analyses,taking the energy pile system as the object,the snow melting process is input into the numerical model in the form of differential equations,and the influence of the loop inside the pile on heat extraction is analyzed;the difference in snow melting effect between adding heat storage water tank and direct shallow geothermal energy methods is com-pared. The study shows that when the internal loop of the pile is spiral,it can provide more shallow geothermal energy. The energy pile system is used to provide heat for the pavement to melt snow,and the area of melting snow decreases with the increase of duration. When the heat storage tank is added,the operation process of the system can be divided into two stages:pre-snow heat storage and snow melting. Ensuring that the water tank reaches a stable temperature in the pre-snow heat storage stage can effectively increase the snow-melting area. Additionally,with the increase of the water tank volume,the time needed to reach