土壤新风换热系统在博物馆建筑中的应用研究  

Research on application of earth-to-air heat exchanger in museum building

作　　者：杨艳芳[1,2] 刘雄[2] 周敏 

机构地区：[1]中冶东方工程技术有限公司,内蒙古包头014010 [2]西安建筑科技大学,陕西西安710055 [3]中国建筑西北设计研究院,陕西西安710018

出　　处：《可再生能源》2014年第9期1352-1358,共7页Renewable Energy Resources

基　　金：国家自然科学基金项目(51078302)

摘　　要：土壤新风换热系统是利用浅层地表土壤中所蕴藏的冷热量,对室外空气进行冷却和加热的系统。文章归纳整理出了湿陷性黄土热物性的计算方法以及土壤温度分布计算模型,并分析了西安地区土壤温度的变化特性;针对地下埋管土壤新风换热系统,给出了其在连续运行和间歇运行工况下的数学计算模型,并分析了系统在西安典型气象条件下的夏季降温、冬季升温性能。在理论研究的基础上,完成了西安汉长安城直城门项目的地下埋管土壤新风换热系统设计,并利用上述项目的设计数据和预算定额从初投资、运行费用等方面对地下埋管土壤新风换热系统的经济性进行了探讨。Earth-to-air heat exchanger （EAHE） system can cool or heat outdoor air by using cold or heat accumulated in shallow soft. Calculation method of collapsibility loess thermal properties and calculation model of soil temperature distribution are proposed in this paper, and change characteristic of soil temperature in Xi＇an area is analyzed. A computing model of buried pipes EAHE system is given in conditions of continuous and intermittent operation, and system performance of cooling in summer and heating in winter is analyzed in Xi＇an typical meteorological conditions. Based on the theoretical study, a EAHE system design for Zhi Gate project of Han Chang＇an ruins in Xi＇an is completed. The economy of EAHE system is discussed in terms of initial investment, operation cost etc. based on design data and budget of the project.

关 键 词：地下埋管 土壤 新风 应用 

分 类 号：TK529[动力工程及工程热物理—热能工程]