《负荷分布对地源热泵系统长期运行特性的影响.》.pdf
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第35 卷 第2 期 南京理工大学学报 Vol. 35 No. 2
20 11 年4 月 Journal of Nanjing University of Science and Technology Apr. 20 11
负荷分布对地源热泵系统长期运行特性的影响
余延顺,马 娟
(南京理工大学能源与动力工程学院,江苏南京210094)
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 。
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
中图分类号:TU832 . 1 文章编号:1005 - 9830 (20 11)02 - 0 155 - 05
Influence of Load Distribution on Long-term Operation
Characteristics of Ground Source Heat Pump System
YU Yan-shun ,MA Juan
(School of Energy and Power Engineering ,NUST ,Nanjing 210094 ,China)
Abstract :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 continu-
ous 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 ana-
lyzed . 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)re-
gion ,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 ,a
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