摘要
在采用热电阻对U型埋管管井进行温度监测的基础上,对U型管群所作用内部和周边管井周围土壤的二维温度场和三维温度场进行了数值模拟。在管群既有取热又有排热的双季运行工况下,着重考虑地下水渗流对U型管群换热的影响,分析管井监测面的温升以及内部管井、周边管井的换热效率和温度变化率,并基于地下水渗流,对管群布置进行了优化。
The two-dimentional.temperature field and three-dimentional temperature field of interior parts and soil around tube well affected by U-shaped nest of tubes were described through a numerical simulation method, based on the temperature detection of U-shaped tubes well with thermal resistance. Considering the fact that the nest of tubes has two different operation conditions, viz heat absorption process and heat release process at the same time, the influence of groundwater seepage on heat exchange of U-shaped tubes was especially researched. Meanwhile, the temperature rise of tube well＇ s monitoring surface was analyzed. Then, the heat exchange efficiency and temperature gradient of other places including inner of tube well and perimeter tube well were also investigated. Finally, the optimal design for layout of tubes was pro- posed according to the research results.
出处
《四川兵工学报》
CAS
2015年第6期141-145,共5页
Journal of Sichuan Ordnance
关键词
垂直U型管群
温度场
数值模拟
渗流
管群优化
vertical U-shaped nest of tubes
temperature field
numerical simulation
seepage
optimalnest of tubes
