摘要
分析了地埋管换热器的传热模型及适用条件,讨论了影响地埋管换热器换热性能的因素,包括土壤热物性、回填材料、地下水流动、土壤冻结、埋管之间的热干扰以及管内循环流速,总结了目前国内外研究的不足,并指出了下一步的研究方向。
The numerical heat transfer models and their applicable conditions of ground heat exchanger are analyzed,as well as the influence factors of heat transfer performance of ground heat exchanger,including thermal properties of deep ground,backfill materials,groundwater flow,soil freezing,thermal interference between pipes and flow rate in pipes.It summarizes the shortcoming of the present research work home and abroad,proposing the development direction.
出处
《建筑节能》
CAS
2011年第9期27-31,56,共6页
BUILDING ENERGY EFFICIENCY
关键词
地埋管换热器
传热模型
回填材料
土壤冻结
地下水流动
ground heat exchanger
heat transfer models
backfill materials
soil freezing
groundwater flow
