玻璃在建筑节能中应用浅析

Brief Analysis on the Application of Glass in Energy Saving of Building

介绍了国内建筑能耗和节能的整体概况,对建筑节能的部件进行分析。建筑物的外围护结构与室外环境的热交换是能源消耗的主要组成,外围护结构中的门窗系统是建筑节能的重要组成部分,门窗中玻璃的节能和使用状况尤为重要。通过对中空玻璃、真空玻璃和镀膜玻璃的传热系数进行分析得出,双层低辐射镀膜真空玻璃传热系数最小,更适于建筑节能用门窗。

The general situation of building energy consumption and energy saving in China is introduced and the components of building energy saving is analyzed. The heat exchange between building envelop structure and outdoor environment is the main part of the energy consumption. The door and window in the outer protective structure is an important part of building energy saving and the glass in the door and window is particularly critical. Trough the analysis of heat transfer coefficient of insulated glass, vacuum glass and coated glass, it is concluded that the heat transfer coefficient of double-layer low-e coated glass is the least, which is more suitable for building energy saving doors and windows.