含水层储能地下温度场模拟

采用Kipp K L推出的地下水流动和热运移方程，对热泵耦合含水层储能系统连续运行3年的储能井温及地下温度场进行了模拟计算．根据地下温度场的分布，对该系统的储能效果进行了分析研究．结果表明，该系统能够在供热和供冷的同时分别向地下储存冷量和热量，起到反季节储能的作用，提高热泵效率；但由于系统的冷、热负荷不均匀，造成了储能井周围区域温度的逐年降低，这对地下生态是不利的．因此，在设计热泵耦合含水层储能系统时，应保证系统的冷热负荷均衡，这样才能既提高热泵的效率又避免对地下生态平衡的破坏．

Underground Temperature Distribution Simulation of Aquifer Energy Storage

Water temperature and underground temperature distribution of heat pump coupled with aquifer energy storage system which has run for 3 consecutive years were simulated, with underground water flow and heat transfer equations put forward by Kipp K L. Energy storage effect of the system was analyzed according to the underground temperature distribution ,which indicates that the cold or heat energy can be stored underground while the system is heating or cooling the building so that seasonal energy is stored and the efficiency of heat pump is enhanced. However,the imbalance of the heat and cold load of energy storage system results in the drop of underground temperature year by year ,which is adverse to the underground environment. Therefore,the heat and cold load should be kept equal in the design of heat pump coupled with aquifer energy storage system,so as to improve the efficiency of heat pump and prevent the ecological balance of underground environment from being destroyed.