郑州市某浅层地热能勘查项目岩土热物性测试分析  

Rock and Soil Thermal Physical Properties in a Shallow Geothermal Energy Project Located in Zhengzhou Area

作　　者：孙君超[1] 黄峙[2] 胡平放[2] 雷飞[2] 朱娜[2] 邬田华[2] 

机构地区：[1]河南省地矿局第五地质勘查院,郑州450001 [2]华中科技大学,武汉430074

出　　处：《建筑节能》2014年第5期28-32,共5页BUILDING ENERGY EFFICIENCY

基　　金：国家自然科学基金资助项目(51078160);武汉市创新体系与环境建设计划(201160638172)

摘　　要：浅层地热能勘察评价是浅层地热能开发利用的基础。介绍了岩土热物性测试仪的组成及工作原理,并将其应用于郑州市浅层地热能调查评价项目中进行岩土热物性测试现场热响应实验。本项目对郑州地区的两个测试孔分别进行不同加热功率条件下的现场热响应试验。传热模型采用钻孔内的二维模型及钻孔外的线热源模型,数据处理采用和双参数估计法,并利用Matlab软件最优化技术编程得到了岩土的综合导热系数和容积比热容,并对结果进行了分析和讨论。The use of shallow geothermal energy is based on shallow geothermal energy exploration. The paper presents the application of thermal response test in the shallow geothermal energy project located in Zhengzhou area. The project is tested by a thermal response test rig with two different heat injection rates in two separated boreholes. The two-dimensional model inside borehole and the linear heat source model outside borehole are used as the heat transfer models. The thermal conductivity and heat capacity of soil is calculated by the two-variable parameter estimation（λsand ρscs）. The test results are analyzed.

关 键 词：浅层地热能 勘察 地源热泵 热响应试验 加热功率 导热系数 

分 类 号：TU831[建筑科学—供热、供燃气、通风及空调工程]