摘要
利用在上海松江区所建设的不同埋深竖管换热器(30 m,60 m,90 m)土壤源热泵实验装置,进行了冬季工况实验.测得热泵运行前后地下埋管周围土壤的温度分布,测试了热泵运行时室外换热器的换热情况,得到了单位井深换热量这一关键参数.90 m埋深换热器运行时,单位井深换热量平均为57.2 W/m;60 m埋深单U型埋管换热器运行时,单位井深换热量平均为55.7 W/m,60 m埋深双U型埋管换热器运行时,单位井深换热量平均为65.7 W/m.
The winter heating performance of the ground source heat pump system with different deep buried U-tube vertical ground heat exchangers(30 m,60 m,90 m) built up in Shanghai Songjiang district was tested.The ground temperature distribution data and the heat transfer capacity of outside exchanger in the process of ground source heat pump were measured.The key parameter,i.e.the heat transfer capacity per unit borehole depth,was obtained.The mean heat transfer capacity per unit borehole depth of 90m buried U-tube vertical ground heat exchangers is 57.2 W/m.The mean heat transfer capacity per unit borehole depth of 60 m buried vertical ground heat exchangers with single U-tube or with double U-tube is 55.7 W/m and 65.7 W/m respectively.
出处
《湖南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2009年第S2期22-26,共5页
Journal of Hunan University:Natural Sciences
基金
上海市教育委员会科研创新项目(09YZ372)
关键词
土壤源热泵
换热量
地温特性
实验研究
ground source heat pump
heat transfer capacity
underground heat transfer
experiments
