摘要
针对天津地区办公建筑的负荷特点提出2种双地埋管群太阳能-地源热泵耦合系统(区别为供热季的太阳能直供或储热),进行为期20 a的模拟预测,得出2种系统的最佳运行工况,并对其运行性能和经济性进行分析。结果表明:从运行性能方面看,直供系统运行20 a的平均系统COP可达3.78,比储热系统高5.3%;从追加投资费用和运行费用两方面考察二者的经济性,系统运行20 a直供系统比储热系统少花费0.52万元。
In this paper,two kinds of hybrid solar-ground source heat pump system with double buried pipe groups are put forward according to the load demand of office buildings in Tianjin.The difference of the two systems is the usage of the heating season’s solar energy:direct supply to building or storage in soil.The optimal operating condition,the operating performance and the economic characteristics for each system in a period of 20 years are studied by simulation.The results show that the average coefficient of performance(COP)of the direct supply system 20 years is up to 3.78,and 5.3%higher than the heat storage system.The sum of additional investment and operating cost shows that the direct supply system operating for 20 years costs less 5200 yuan less than that of the heat storage system.
作者
沈海笑
王恩宇
沈云祥
齐承英
Shen Haixiao;wang Enyu;Shen Yunxiang;Qi Chengying(School of Energy and Entironumental Engineering,Hebei Unifersity of Technology,Tianjin 300401,China)
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2020年第10期361-368,共8页
Acta Energiae Solaris Sinica
基金
国家重点研发计划(2016YFC0700707)
河北省自然科学基金(E2013202122)
天津市科技计划(14TXGCCX00010,17YFCZZC00560)。
关键词
太阳能
地源热泵
经济性分析
运行费用
性能系数
地埋管
solar energy
ground source heat pumps
economic analysis
operating costs
coefficient of performance
