Effect of heat balance measures on temperature in heat exchange area of ground-source heat pump systems in Shanghai

Based on the monitoring data of shallow geothermal energy projects in Shanghai for many years, the change characteristics of the temperature field in the heat exchange area of the ground-source heat pump projects after many years of operation and the effect of thermal balance measures on the temperature field in the heat exchange area are analysed. The analysis results show that in the monitored buried pipe ground-source heat pump projects, the temperature in the buried pipe heat exchange area of the projects with heat balance measures is basically stable, that of the projects without heat balance measures basically shows an increasing trend, and obvious heat accumulation appears.