摘要
本文介绍了土壤源热泵垂直埋管式换热器的三种不同简易计算模型,引入不同的导热形状因子,并利用G函数来确定管井井壁的温度。通过地源热泵的设计软件分析了回填材料与管材的热物性、管井与U型管以及它们之间的几何特征对管井热阻的影响。
Three kinds of simple heat transfer models of ground source heat pump systems equipped with vertical U-tube ground heat exchanger are introduced. G-function and conduction shape factors are employed to calculate the sidewall temperature of tube-well. According to design software of ground source heat pump, the effects of backfill material and thermophysics, tube-well and U-tube, their geometry character in the thermal resistance are analyzed.
出处
《建筑热能通风空调》
2007年第1期85-88,共4页
Building Energy & Environment
关键词
土壤源热泵
导热模型
导热形状因子
设计软件
ground source heat pump, heat transfer model, conduction shape factors, design software
