基于p阶线性模型的地埋管换热器流体温度分布研究  

STUDY ON FLUID TEMPERATURE DISTRIBUTION OF BURIED TUBEHEAT EXCHANGER BASED ON p-ORDER LINER MODEL

作　　者：赵鹏[1,2] 张东海 李晓昭[1,2] 张古彬 寇亚飞[4] 高蓬辉 Zhao Peng;Zhang Donghai;Li Xiaozhao;Zhang Gubin;Kou Yafei;Gao Penghui(State Key Laboratory for Geomechanics and Deep Underground Engineering,China University of Mining and Technology,Xuzhou 221116,China;Yunlong Lake Laboratory of Deep Underground Science and Engineering,Xuzhou 221006,China;School of Mechanics and Civil Engineering,China University of Mining and Technology,Xuzhou 221116,China;Henan Academy of Geology,Zhengzhou 450001,China)

机构地区：[1]中国矿业大学深部岩土力学与地下工程国家重点实验室,徐州221116 [2]深地科学与工程云龙湖实验室,徐州221006 [3]中国矿业大学土木与力学学院,徐州221116 [4]河南省地质调查院,郑州450001

出　　处：《太阳能学报》2024年第6期51-59,共9页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金青年项目(42202299);江苏省双创博士计划(140923059);河南省地质环境项目(豫地环[2022]1号);深地科学与工程云龙湖实验室重点研发计划(104023004)。

摘　　要：利用自主研发的分层热响应测试系统,获取沿深度方向上(竖向)管内流体温度实测数据,对比p阶线性分布模型计算结果和实测数据,研究两种典型工况条件下分层岩土介质中管内流体竖向分布规律和最佳p值。结果表明:恒热流工况时,p=-5阶线性分布模型能够准确预测管内流体温度分布;恒温工况时,最佳p值随流量的变化而变化,其关系为:|p|=7.361ln V+6.684。The self-developed stratified thermal response test system was used to obtain the data of fluid temperature in the pipe along the flow direction(vertical),and then the calculation results of the p-order linear model were compared with the measured data to investigate the temperature distribution law and the optimal p-value of fluid in the pipe for stratification conditions under two typical working conditions.The results show that the p=-5 order linear model can accurately predict the temperature distribution in the pipe under constant heat flow condition.Under constant temperature condition,the optimal p-value varies with flow rate and the relationship is:|p|=7.361 lnV+6.684.

关 键 词：地热能 地埋管换热器 岩土传热 地质结构分层 参数估值 

分 类 号：TK513.5[动力工程及工程热物理—热能工程]