夏热冬冷地区建筑屋面节能分析  

Energy-saving analysis of roofs in hot summer and cold winter area

作　　者：戴绍斌[1] 张逸超[1] 黄俊[1] 

机构地区：[1]武汉理工大学土木工程与建筑学院,湖北武汉430070

出　　处：《新型建筑材料》2014年第9期64-66,81,共4页New Building Materials

基　　金：国家科技支撑计划项目(2011BAJ03B03);武汉市科技计划项目(2014070504020242);武汉市城建科研项目(201213)

摘　　要：利用ANSYS软件,对夏热冬冷地区5种保温隔热构造的改进屋面进行瞬态传热分析,并评价屋面夏季隔热和冬季保温性能。研究表明,武汉、长沙、南京地区屋面内表面温度波动最大值与保温隔热层厚度的关系分别为y=-0.0148x+1.9649;y=-0.0202x+2.6809;y=-0.0181x+2.3994,满足冬季保温的组合均为60 mm挤塑聚苯板+30 mm加气混凝土碎渣;满足夏季隔热的组合武汉地区为70 mm挤塑聚苯板+30 mm加气混凝土碎渣,长沙、南京地区为80 mm挤塑聚苯板+30 mm加气混凝土碎渣。Transient heat transfer of five improved roofs in hot summer and cold winter area is analyzed using ANSYS in this paper, and heat preservation performance of roof in winter and heat insulation performance of roof in summer is estimated. The research shows that,relationship between maximum of surface temperature fluctuation and thickness of preservation-insulation layer in Wuhan Changsha and Nanjing area is y=-0.0148x＋1.9649,y=-0.0202x＋2.6809,y=-0.0181x＋2.3994：60 mm XPS＋30 mm aerated concrete slag can meet heat preservation requirement in winter, 70 mm XPS＋30 mm aerated concrete slag can meet heat insulation requirement of Wuhan in summer, and 80 mm XPS＋30 mm aerated concrete slag can meet heat insulation requirement of Changsha and Nanjing area in summer.

关 键 词：改进保温屋面 夏热冬冷地区 瞬态传热 

分 类 号：TU111.195[建筑科学—建筑理论]