均摊恒定热流法对埋地管群土壤温度场的分析  

Analysis of Average Constant Heat Flux Method on Soil Temperature Field of Buried Pipelines Heat Exchanger

作　　者：贾智强[1] 李科群[1] 孙浩琳 汪春宇[1] 

机构地区：[1]上海理工大学能源与动力工程学院,上海200093

出　　处：《建筑节能》2014年第11期31-35,共5页BUILDING ENERGY EFFICIENCY

基　　金：高压加热器启动及运行模拟仿真技术研究(20071001-1)

摘　　要：结合工程实例,在对长期运行、有热堆积问题的埋地管群换热器进行数值分析的过程中,提出处理埋地管群壁面边界条件的新方法——均摊恒定热流法,并用此方法分析了热堆积问题下土壤温度场的变化,验证这种方法的合理性。分析了热堆积问题对埋地管群换热器运行带来的恶劣影响,并用均摊恒定热流法分析增设室外冷却塔的可行性。A new method to process the buried pipelines boundary conditions- average constant heat flux method is proposed, combined with engineering case, during the period of studying the buried pipelines heat exchanger in the long run and with the heat accumulation. The method is appropriate to analyze the changes of soil temperature field under the condition of heat accumulation; the rationality of the method is illustrated. Finally, it analyzes the shortcoming caused by heat accumulation of buried pipelines.The feasibility of installing outdoor cold tower is verified through the average constant heat flux method.

关 键 词：土壤源热泵 埋地管群 热堆积 均摊恒定热流法 数值分析 土壤温度场 

分 类 号：TK831[动力工程及工程热物理—流体机械及工程]