华东地区围护结构节能研究

根据南京市的典型年逐时气象参数，对于该市的某一座高层建筑物，应用自编的逐时动态负荷模拟程序，输入围护结构（窗户、墙体和屋顶）相关的物理参数及其与周围环境的关系（地点及朝向等），计算围护结构冬季采暖期散热量及夏季制冷得热量。结果表明，采用双层塑窗代替单层塑窗，使用节能墙体代替传统墙体能够使得冬季围护结构传散热量减少51％，夏季围护结构总得热量减少46％。因此，这一结果为华东地区建筑节能技术提供了理论依据。

Study of Energy Saving for Building Envelop in East of China

Heat gains cooling time during summer and heat losses during winter heating time through the envelop of a high building are simulated by using an hourly, time response computer program on the basis of unsteady heat transfer theory. The program calculates heat gains and heat losses on an hourly basis using detailed input concerning the physical characteristics of the window, wall, roof, their relations to the environment (location, orientation, etc.), along with the hourly local weather data during a typical year. Nanjing can be regarded as a representative city in east of China and we suppose the building locate in Nanjing. The building is supposed with two different types of envelop described in this paper. The total heat gains during summer and heat losses during winter though envelop which is energy saving are compared to those through the traditional envelop. Results show that the total heat losses through building envelop can be reduced by 51% during winter heating time and heat gains reduced by 46% during summer cooling time using double pane vinyl framed glazing instead of single vinyl framed glazing and using energy saving wall instead of traditional wall. Result provides the theoretical basis on energy saving technology of building in east of China.