岩土温度场对垂直地埋管换热影响的数值分析  

Numerical analysis of the influence of geotechnical temperature field on heat transfer of GSHP buried tube

作　　者：万兆[1] 管昌生[1] 胡平放[2] 

机构地区：[1]武汉理工大学土木工程与建筑学院,湖北武汉430070 [2]华中科技大学环境科学与工程学院,湖北武汉430074

出　　处：《武汉工程大学学报》2011年第6期65-67,71,共4页Journal of Wuhan Institute of Technology

基　　金：国家自然科学基金(编号51078160)

摘　　要：模拟夏季制冷条件下地源热泵地埋管周围岩土层非稳态传热过程,分析了钻孔外岩土区域温度场热作用特性及影响因素.利用多层岩土传热模型,研究距钻孔一定距离处岩土温度场分布随运行时间的变化规律,分析钻孔内回填土导热系数对换热器传热性能及周围岩土温度场的影响.模拟结果可为地源热泵地埋管换热器的动态模拟及设计提供参考.This paper simulate ground source heat pump which was implanted tube with geotechnical layer unsteady in heat transfer process under summer cooling condition.The authors analyze the heat action characteristics and influencing factors of the geotechnical temperature field.By using multilayer geotechnical heat transfer model the authors study in a certain distance from drilling geotechnical temperature field distribution with the change of operation time.Analysis of the influence of backfilled material thermal conductivity on heat exchanger performance and temperature field of the surrounding rock was made.Simulation results provide the ground source heat pump implanted heat exchanger design and the dynamic simulation of the reference.

关 键 词：地源热泵 非稳态传热 多层岩土模型 岩土温度场 

分 类 号：TU111.1[建筑科学—建筑理论]