Temperature Field of Doublet-wells Aquifer Thermal Energy Storage in Sanhejian Coal Mine

摘要

Utilizating of tube-well irrigation,the technology of aquifer thermal energy storage(ATES) store rich cold energy in winter and cheap warm energy in summar into aquifers seasonally.In this paper,taking Sanhejian Coal Mine as an example,we discuss that with the same pumping and irrigation flow in doublet wells,distribution and change of temperature field in aquifers both at the end of energy storage and after the period of no pumping and no irrigation.The simulation results of aquifer temperature field show that 2～ 10°C water body of aquifers is decreasing in the period of no pumping and no irrigation,but it is only a small reduction with a stable trend.And after the period of no pumping and no irrigation,about 11 °C water body of aquifers stores steadily in the aquifer,so the selected aquifers is suitable and its effect of energy storage is good.