地埋管地源热泵系统地温监测技术试验研究
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摘要
地埋管地源热泵系统运行过程中换热器需要与土层进行热交换,长期大规模应用在一定程度上会改变地层温度场特征,进而影响热泵系统的运行效率。依托上海市某高校综合研究中心地埋管地源热泵工程开展试验研究,确定地埋管地源热泵系统地温监测点的布设原则及方法,地温监测数据的采集方式、采集频率等,准确完整地获得地源热泵系统运行3年地埋管换热区地温监测数据,并对地埋管地源热泵系统运行对地层温度场影响的程度及范围进行分析。
The heat exchanger for buried-pipe ground source heat pump(GSHP)system under operation needs to exchange heat with the soil.After long-term large scale application,the characteristics of ground temperature field will be changed,so that the operation efficiency of GSHP system can be affected.Based on the buried-pipe ground source heat pump engineering for one comprehensive research center of university in Shanghai,the experimental research is conducted on the layout principle & method of ground temperature monitoring system,the acquisition method and sampling frequency of ground temperature monitoring data,etc..The accurate and complete ground temperature monitoring data for the buried-pipe heat exchange zone is acquired according to the ground source heat pump system operating for 3 years.The influence degree and range of the operating ground source heat pump system on the ground temperature field are analyzed.
The heat exchanger for buried-pipe ground source heat pump(GSHP)system under operation needs to exchange heat with the soil.After long-term large scale application,the characteristics of ground temperature field will be changed,so that the operation efficiency of GSHP system can be affected.Based on the buried-pipe ground source heat pump engineering for one comprehensive research center of university in Shanghai,the experimental research is conducted on the layout principle & method of ground temperature monitoring system,the acquisition method and sampling frequency of ground temperature monitoring data,etc..The accurate and complete ground temperature monitoring data for the buried-pipe heat exchange zone is acquired according to the ground source heat pump system operating for 3 years.The influence degree and range of the operating ground source heat pump system on the ground temperature field are analyzed.
引文
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[6]周志华,张丽英,黄珂,等.垂直埋管式地源热泵土壤温度分布研究[J].太阳能学报,2014,35(8):1480-1485.
[7]尚妍,李素芬,代兰花.地源热泵间歇运行地温变化特性及恢复特性研究[J].大连理工大学学报,2012,52(3):350-356.
[2]HAKAN D,AHMET K,GALIP T.Heat transfer of horizontal parallel pipe ground heat exchanger and experimental verification[J].Applied Thermal Engineering,2009,29:224-233.
[3]PUSSOLI B F,BARBOSA J R,SILVA L W,et al.Heat transfer and pressure drop characteristics of peripheral-finned tube heat exchangers[J].International Journal of Heat and Mass Transfer,2012,55:2835-2843.
[4]BODRI L,RYBACH L,BUNTEBARTH G.Relationship between seismic velocity and heat production:comparison of two sets of data and test of validity[J].Earth and Planetary Science Letters,1990,99(2):48-57.
[5]LI S H,YANG W H,ZHANG X S.Soil temperature distribution around a U-tube heat exchanger in a multifunction ground source heat pump system[J].Applied Thermal Engineering,2009,29:3679.
[6]周志华,张丽英,黄珂,等.垂直埋管式地源热泵土壤温度分布研究[J].太阳能学报,2014,35(8):1480-1485.
[7]尚妍,李素芬,代兰花.地源热泵间歇运行地温变化特性及恢复特性研究[J].大连理工大学学报,2012,52(3):350-356.