摘要
地道风系统在被动建筑中的应用具有重大的节能意义。针对成都地区未应用地道风系统的现状,提出在此地区工程应用地道风系统动态换热模型。通过模型简化,建立一维非稳态换热模型,进行动态模拟。并以成都某被动建筑为研究对象,给出系统的埋管长度、直径和风速等设计参数建议。最后分析该系统在被动式建筑中应用的节能性。结果表明节能效果良好,夏季满足率达到35.1%,冬季对新风做预热处理。为地道风系统在成都地区被动建筑的适用性提供理论依据。
Using earth to air heat exchanger system in passing construction is of great significance to saving building energy consumption.In view of the status of the EAHES has not been applied in Chengdu,a dynamic heat transfer model is proposed,which is suitable for actual project application.By simplifying the heat transfer model of the system,a onedimensional unsteady transfer model is established and dynamic simulation is carried out.Taking apassive building in Chengdu as the research object,the parameters of the EAHES for passive buildings in Chengdu are determined,including length,diameter and wind speed.Finally,analyzing the energy efficiency of EAHES in passive buildings.The results show that it has a great energy-saving effect,the satisfaction rate reaches 35.1% in summer,and preheating treatment of fresh air in winter by using EAHES.The practical feasibility of the tunnel air system in Chengdu area is supported by theory.
作者
贾玲玉
唐瑞升
JIA Lingyu, TANG Ruisheng(Xiliua University, Chengdu 610039, Chin)
出处
《四川建材》
2018年第4期18-20,27,共4页
Sichuan Building Materials
基金
西华大学研究生创新基金项目(ycjj2017081)
关键词
地道风系统
换热模型
被动建筑
节能潜力
earth to air heat exchanger system
transfer model
passive construction
energy saving potential
