地源热泵竖直地埋管动态负荷下换热特性解析分析方法  

Analytical method for heat transfer characteristics of vertical ground heat exchangers in ground-source heat pump under dynamic load

作　　者：官燕玲[1] 江超[1] 黄雪婷[1] 张渊博[1] 赵凡[1] 

机构地区：[1]长安大学

出　　处：《暖通空调》2013年第11期87-91,共5页Heating Ventilating & Air Conditioning

基　　金：西安市建设科技项目(编号:2010006);陕西省科学技术研究发展计划项目(编号:2013K13-02-01)

摘　　要：基于无限长线热源模型和负荷叠加原理,建立了竖直地埋管动态负荷下换热特性二维解析计算模型,预测了地埋管全年运行进、出口流体温度及周围岩土温度的分布,与已建立的地埋管全尺寸三维数值计算模型的计算结果进行了比较。结果表明,两种模型的计算结果基本吻合。Based on the infinite-length linear source model and the principle of load superposition, establishes a two-dimensional analytical model for heat transer characteristics under dynamic load to predict the whole year dynamic inlet and outlet temperature of a ground heat exchanger and the temperature distribution of the surronding soil. The predicted results are compared with those of a full scale three- dimensional CFD simulation developed perviously. The results show that the results of the two models are basically consistent.

关 键 词：地埋管换热器 动态负荷 换热特性 解析计算 数值计算 无限长线热源模型 流体温度 岩土温度 

分 类 号：TU831[建筑科学—供热、供燃气、通风及空调工程]