摘要
本文在总结各种岩土热物性确定方法的基础上,详细分析了基于解析法的地下岩土热物性现场测试方法的测试装置与过程、理论基础及其算法,包括基于线热源模型的数据拟合法及基于线热源与柱热源模型的参数估计法。通过实例计算对3种方法的计算精度进行了分析与比较,探讨了测试时间对计算结果的影响,所得结论对土壤源热泵应用设计中地下岩土热物性的实际测试具有指导意义。
In this paper, based on various methods to determine ground thermal properties： the test equipment, process, theory foundation and algorithms for field test were analyzed in detail with analytical methods. Furthermore, for the data curve-fit method based on the line heat source model and parameter estimation methods based on the line heat source and cylindrical heat source models, the calculation accuracy were analyzed and compared. In addition, the influences of test duration on calculation results were investigated. To sum up, the study was significant for testing the ground thermal properties during the design of ground source heat pump.
出处
《建筑科学》
北大核心
2009年第8期60-64,共5页
Building Science
基金
建设部研究开发项目(2008-K1-26)
扬州大学"新世纪人才工程"优秀青年骨干教师计划项目(2008年度)
江苏省建设厅科技计划项目(JS2008JH10)
关键词
土壤源热泵
岩土热物性
现场测试法
线热源模型
柱热源模型
ground source heat pump, ground thermal properties, field test method, line heat source mode, cylindrical heat source model
