负荷分布对地源热泵系统长期运行特性的影响  

Influence of Load Distribution on Long-term Operation Characteristics of Ground Source Heat Pump System

作　　者：余延顺[1] 马娟[1] 

机构地区：[1]南京理工大学能源与动力工程学院,江苏南京210094

出　　处：《南京理工大学学报》2011年第2期155-159,共5页Journal of Nanjing University of Science and Technology

基　　金：国家自然科学基金(50806034);江苏省'六大人才高峰'资助项目(07-A-015)

摘　　要：为研究地源热泵系统(GSHPs)在不同负荷分布下的长周期运行特性,建立了考虑地下水渗流的地下埋管换热系统的传热模型,并对北京、哈尔滨、上海三典型负荷分布地区某宾馆建筑地源热泵系统连续10年的长周期运行特性进行了计算与分析。结果表明,在北京负荷平衡地区热累积效应较小,而在哈尔滨(负荷比6.6∶1)地区盘管最高及最低出水温度10年降低了3.8℃,年均降幅为0.38℃/a;上海(负荷比1∶3.6)地区,盘管最高与最低出水温度上升了约5.6℃,年均升幅0.56℃/a。In order to study the long-term operation characteristics of the ground source heat pump system（GSHPs）in various building load distributions,the heat transfer model considering the groundwater seepage of the underground heat exchanger system is established.The 10-year continuous simulations of GSHPs for hotel buildings in Beijing,Harbin and Shanghai with the typical load distribution are performed,and the long-term operation characteristics of GSHPs in regions are analyzed.The results show that the influence of thermal incubation effect on operation characteristics can be ignored in Beijing which is a load balance region.However,in Harbin（with load ratio 6.6∶1）region,the maximum and minimum outlet temperatures of the pipe decrease 3.8 ℃,and in Shanghai（with load ratio 1∶3.6）they increase 5.6 ℃ in the 10-year operation,and the amplitude of tempera-tures are 0.38 ℃/a and 0.56 ℃/a,respectively.

关 键 词：地源热泵系统 负荷分布 热累积效应 长周期运行特性 

分 类 号：TU832.1[建筑科学—供热、供燃气、通风及空调工程]