地埋管运行对周围土壤温度影响研究

Study on the Influence of Buried Pipe Operation on Soil Temperature

摘要: 研究地埋管运行对土壤温度影响具有理论意义和实用价值。本文利用FLUENT建立地埋管与其接触的土壤之间的换热模型，得到以下结论：夏季工况土壤源热泵运行会使土壤的温度升高，土壤温度在垂直方向上的变化很小，可以忽略不计，土壤水平方向的温度变化与距离地埋管的距离存在对数函数关系。冬季土壤源热泵运行使土壤温度降低，土壤水平方向的温度变化与距离地埋管的距离存在对数函数关系。

Abstract: Studying the impact of underground pipeline operation on soil temperature has theoretical significance and practical value. In this paper, Fluent is used to establish the heat transfer model between the buried pipe and the soil in contact with it. The following conclusions are obtained: the operation of the ground source heat pump in summer will increase the soil temperature, and the soil temperature changes little in the vertical direction, which can be ignored. The soil temperature distribution is a logarithmic function of the distance from the drill hole. The operation of ground source heat pump in winter reduces the soil temperature, and the soil temperature distribution is also a logarithmic function of the distance from the borehole.