混合土壤热泵在长江流域的应用前景

混合土壤热泵包括埋地换热器和冷却塔两部分，埋地换热器用于供热，而冷却塔和埋地换热器共同制冷。从理论上来说，山于冷却塔承担了一部分冷负荷，从而减少了埋地换热器的数量，节省了初投资。本文首先介绍了混合土壤热泵的工作原理及其特点，然后比较了混合土壤热泵与水源热泵的初投资，并分析了其运行费用，得出当系统容量小丁616kW时，混合土壤热泵在经济上和技术上具有明显优势的结论。在此基础上，从地理环境、气候条件及技术优势和环保的角度讨论了混合土壤热泵在长江流域及其周围地区的发展优势，展望了混合土壤热泵在该地区的发展前景。

Applications of Hybrid Ground-coupled Heat Pump in Yangtze River Basin

Hybrid ground-coupled heat pump system includes both a ground loop and a cooling tower. The ground loop is sized to meet the heating load, and along with the tower, it is used to meet the cooling heat rejection load, thereby reducing the amount of ground-coupled heat exchanger and in theory that can reduce the capital cost of the system. The working principle and characteristics of hybrid ground-coupled heat pump were discussed here. With the capital cost comparison between the hybrid ground-coupled heat pump and groundwater heat pump, as indicated at system capacities of 350 kw to 616 kw and below, the hybrid ground-coupled system has the capital cost advantage over groundwater system, and the application prospect of the hybrid ground-coupled system in the Yangtze River basin and its surrounding were discussed thoroughly.