摘要
建立双U型垂直埋管试验井测试实验装置,通过现场测试采集当地的岩土热物性参数,从而确定土壤的原始地温、单位井深的散热量等参数,对地源热泵设计有一定的参考价值。结果表明,土壤的原始地温为19.2℃;夏季工况下,地下换热器的进、出口水温度分别为35℃和31℃时,单位井深的散热量为62.55W/m。
An experimental apparatus was established to test the performance of an underground double U-tube pump. The thermal properties of local rock and soil were measured and collected at site, and the original ground temperature and the heat emission rate of unit depth were determined. The results indicate that the original ground temperature was 19.2℃. In addition, the heat emission rate of unit depth was 62.55W/m when the inlet water temperature in the underground exchanger was 35℃ and the outlet water temperature was 31 ℃ in summer.
出处
《制冷学报》
CAS
CSCD
北大核心
2010年第1期50-53,共4页
Journal of Refrigeration
关键词
工程热物理
地源热泵
双U换热器
实验分析
Engineering thermophysics
Ground-source heat pump
Underground double U-tube heat exchanger
Experimental analysis
