地埋管地源热泵复合水蓄能系统方案设计及经济性分析

Scheme Design and Economic Analysis of Ground-Source Heat Pump Combined with Water Storage Air-Conditioning System

结合工程实例介绍了地埋管地源热泵复合水蓄能系统的应用设计,通过100%设计负荷日逐时负荷计算分析提出了地埋管地源热泵复合水蓄能系统设计思路及运行策略,并对比了无蓄能的常规地埋管地源热泵系统经济性。结果表明,该系统较无蓄能的常规地埋管地源热泵系统初投资节省约15%,年运行费用节省约38%,设备装机容量降低30%~35%,钻孔数量降低34%,地埋换热孔布置面积节省8500m^2,经济效益显著。该研究指出了蓄能技术的应用前景,并为同类工程提供了参考和借鉴。

The application design of combination of water energy storage and ground-source heat pump system in a certain project is introduced.The hourly load in the day-by-design is analyzed and the water energy storage system operating strategy is proposed.Through the economic analysis between ground-source heat pump combined with water energy storage system and the conventional ground-source heat pump,it is found that the initial investment of the composite system is saved by about 15%,the annual operating cost is saved by about 38%,the installed capacity of the equipment is reduced by 30%to 35%,the number of drilled holes is reduced by 34%,and the area of buried heat exchange holes is saved by 8500 m^2,and the economic benefits are remarkable.The study points out the application prospects of energy storage technology and provides reference for similar projects.