地源热泵岩土热物性现场测试方法评价
Evaluation on field test methods of ground thermal properties for ground-source heat pump systems
摘要：
在总结地下岩土热物性现场测试方法的理论模型和算法的基础上，通过建立地源热泵系统的三维数值模型，构建了一个虚拟的标准地质孔，模拟得到了热响应曲线。采用常用的3种岩土热物性测试方法对标准地质孔的热物性参数进行了辨识，结果表明，与柱热源模型相比，基于线热源模型的2种测试方法具有较高的计算精度。
关键词：地源热泵,岩土热物性,现场测试,柱热源,线热源
Abstract：
Briefly summarizes various theoretical models and algorithms of the field test methods, establishing a three-dimensional numerical model of ground source heat pump system, constructs a virtual standard geology hole, and obtains the thermal response curves by simulation. Investigates the accuracy of three common methods determining ground thermal properties. The results show that compared with the cylinder heat source model, the two testing methods based on the line heat source model have higher precision.
Keywords:ground-sourceheatpump,groundthermalproperty,fieldtest,cylinderheatsource,lineheatsource