土壤蓄冷与土壤耦合热泵集成系统

以平衡电网负荷、削峰填谷及利用可再生浅层地热能为基本出发点,提出了土壤蓄冷与土壤耦合热泵集成系统的新设想.该集成系统将蓄冷装置与地下埋管换热器合二为一,在夏季空调工况时,利用电力低谷时段的廉价电力,将冷量全部或部分储存到土壤中,以供白天用电高峰期空调使用;在需供冷的过渡季,系统按土壤耦合热泵系统的供冷工况运行,将系统的冷凝热排至土壤中,为冬季供暖储备热量;供暖季节,系统按土壤耦合热泵系统的供暖工况运行,土壤作为热泵系统的低位热源.介绍了该集成系统的形式、技术特点及核心研究内容,并在前期研究工作的基础上对影响集成系统运行特性、冷量损失的因素进行了较全面的总结.

Integrated soil cool storage and ground-coupled heat pump system

For the purpose of leveling electric load and utilizing the renewable ground thermal energy, presents an integrated soil cool storage and ground-coupled heat pump system. In the integrated system, the buried pipes serve as both the thermal storage devices and geothermal heat exchangers. In cooling season, the cooling load is stored in the underground soil partially or fully during nighttime (off-peak period) to treat the load requirement of buildings during daytime (peak period). In transitional cooling season, the system operates on cooling mode of ground-coupled heat pump system (GCHPS), and rejects the heat to soil for utilizing in winter. In heating season, the system operates on heating mode of GCHPS, and the soil is taken as its heat source. Summarizes the system forms, technical characteristics and pivotal research points of the integrated system. Analyses the factors that influence the operation characteristics and cooling loss based on the previous work.