摘要
本文主要研究了添加防冻液对地埋管换热器的换热性能及流动阻力的影响,采用实验结合理论分析的方法,分析了不同浓度的乙二醇水溶液在不同埋管进水温度下的换热及阻力特性,给出了管道添加防冻液的流量和阻力修正系数,进而对地埋管低温工况下的工程设计提供参考。
In this paper,the effect of antifreeze on heat transfer performance and flow resistance of ground heat exchanger is studied.The experiments combined with theoretical analysis methods are adopted.The characteristics of heat transfer and flow resistance are analyzed on different concentrations and temperatures of aqueous solution of ethylene glycol,and the correction factor of the rate of flow and flow resistance are given,so as to provide a reference for project design of ground heat exchanger of low temperature.
作者
杨秀琴
涂书阳
周翔
张旭
YANG Xiu-qin;TU Shu-yang;ZHOU Xiang;ZHANG Xu(Institute of HVAC Engineering,Tongji University;China Southwest Architectural Design and Research Institute)
出处
《建筑热能通风空调》
2019年第12期14-17,共4页
Building Energy & Environment
基金
国家自然科学基金项目(No.51678418)
关键词
地埋管换热器
防冻液
修正系数
ground heat exchanger
antifreeze
correction factor
