摘要
热物性参数是地源热泵系统地埋管换热器设计的关键参数。采用自行研制的岩土热物性参数测试仪,于地处夏热冬冷地区的绍兴某山地开展单U和双U测试井现场热响应试验,使用线热源模型对数据进行分析,获得工程所在山地单U测试井的岩土导热系数为2. 27 W/(m·K),钻井热阻为0. 123 (m·K)/W,排热工况下单位延米换热量为86. 39 W/m,双U测试井的岩土导热系数为3. 31 W/(m·K),钻井热阻为0. 119 (m·K)/W,单位延米换热量为106. 72 W/m,为该地区地源热泵系统的设计及施工提供了依据。
The rock-soil thermal properties are key parameters for designing ground heat exchangers in ground source heat pump system. The thermal response test of a single-U and double-U test well was carried out in a mountainous area of Shaoxing located in the region of hot summer and cold winter by using the ground thermal properties parameter test instrument of our own research and development,and the data was analyzed by using a line heat source model. The rock-soil thermal conductivity in the single-U test well in the mountainous area is 2. 27 W/( m·K),the drilling thermal resistance is 0. 123( m·K)/W,the unit of meters for heat exchange rate is 86. 39 W/m;the rock-soil thermal conductivity in the double-U test well is 3. 31 W/( m·K),the drilling resistance is 0. 119( m·K)/W,and the unit of meters for heat exchange rate is 106. 72 W/m,which provided a basis for the region of ground source heat pump system design and construction.
作者
鲁文桥
陈帅
LU Wen-qiao;CHEN Shuai(Shanghai University of Engineering Science,Shanghai 201600,China)
出处
《建筑节能》
CAS
2019年第5期64-67,共4页
BUILDING ENERGY EFFICIENCY
关键词
岩土热物性
热响应试验
岩土导热系数
钻井热阻
单位延米换热量
rock-soil thermal properties
thermal response test
rock-soil thermal conductivity
drilling thermal resistance
unit of meters for heat exchange rate
作者简介
鲁文桥(1993),男,安徽安庆人,能源装备与过程控制专业,硕士研究生,主要从事建筑能源应用研究(1003122504@qq.com)。
