流体机械

2009, v.37;No.450(12) 52-57

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太阳能-地源热泵系统运行特性的试验研究
Experimental Study on Operation Characteristic of Solar-ground Source Heat Pump System

杨卫波;倪美琴;施明恒;吴安宽;冯学;
YANG Wei-bo 1,NI Mei-qin 1,SHI Ming-heng 2,WU An-kuan 3,FENG Xue 3 (1.Yangzhou University,Yangzhou 225009,China;2.Southeast University,Nanjing 210096,China;3.Jiangsu Huajian Construction Co.,Ltd.,Yangzhou 225009,China)

摘要(Abstract):

在已建成的太阳能-地热能综合利用多功能热泵试验系统上进行了太阳能-地源热泵系统联合与交替供暖运行特性的试验测试,结果表明:联合运行模式不仅可以提高日间系统运行效率,且U型埋管可作为热源缓冲体自动储存日间富余太阳能,以改善夜间运行效率,联合运行测试期内太阳能与地热能热源的承担比例为43.3%:50.2%;交替运行模式可以在充分利用太阳能的前提下有效恢复埋管周围土壤温度,从而可提高太阳能与地热能的综合利用效率;整个供暖测试期内,地源热泵与日间太阳能热泵的平均COP分别为2.37、2.72,对应的太阳能-地源热泵系统联合运行模式、昼夜交替运行模式及太阳能-U型埋管补热交替运行模式的平均COP分别为2.69、2.65及2.56。
An experimental test on the operation characteristics of solar-ground source heat pump system operated in combined and alternate heating mode respectively is undertaken in a solar-geothermal multifunctional heat pump experiment system.The measurement results indicate that the system operation efficiency during day and night can all be improved for the combined operation mode,and the superfluous solar energy during daytime may be stored temporarily by the U-tube for the use of night.The proportion of heat source burdened by solar and ground thermal energy are 43.3% and 50.2% respectively.As for alternate mode,the resumption of soil temperature surrounding the buried coil can be well achieved for improving the overall utilization efficiency of solar and geothermal energy.During the test time,the average COP are 2.37 and 2.72 for GSHP mode and SAHP mode respectively,and the corresponding parameters are 2.69,2.65 and 2.56 for combined mode,day and night alternate mode and alternate mode of feeding solar energy into soil by U tube of solar-ground source heat pump system.

关键词(KeyWords): 太阳能-地源热泵系统;联合运行;交替运行;试验研究
solar-ground source heat pump;combined operation;alternate operation;experimental study

Abstract:

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基金项目(Foundation): 建设部研究开发项目资助项目(2008-K1-26);; 国家自然科学基金资助项目(50276013);; 扬州大学新世纪人才工程培养计划——优秀青年骨干教师(2008年度)

作者(Author): 杨卫波;倪美琴;施明恒;吴安宽;冯学;
YANG Wei-bo 1,NI Mei-qin 1,SHI Ming-heng 2,WU An-kuan 3,FENG Xue 3 (1.Yangzhou University,Yangzhou 225009,China;2.Southeast University,Nanjing 210096,China;3.Jiangsu Huajian Construction Co.,Ltd.,Yangzhou 225009,China)

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