THM Coupling Effect Of Groundwater Source Heat Pump In Pump/Injecting Well Arrangement

Groundwater source heat pump system in recent years has been the use of new clean groundwater resources in much urban architecture has been widely used, but because of the pumping irrigation wells arranged unreasonable groundwater source heat pump use.This paper uses percolation theory, heat transfer theory, the principle of effective stress analysis of a groundwater source heat pump system seepage field-the thermodynamic field-the stress field coupling mechanism, set up three fully coupled mathematical model. Single well run in the groundwater source heat pump system when the flow velocity, the pumping capacity of irrigation amount of three coupled variation simulation analysis using COMSOL Multi-physics coupling simulation software. The simulation results show that the flow velocity of the temperature field corresponding force field affect not obvious; of pumping irrigation volume changes of the temperature and stress field are obvious.Different layout mode by simulating three coupling feature a pumping irrigation, two pumping the two filling three different modes wells spacing, a reasonable pumping irrigation spacing range. The results showed that the pumping irrigation layout spacing in the70-80m for the ideal state. By pumping irrigation wells arranged instance of simulation and theoretical results are compared, and results show that the Shenyang Xing the Water Tower groundwater source heat pump simulation data and actual monitoring data are very close. The research results provide scientific support arranged for pumping irrigation wells spacing.