典型建筑门窗与幕墙节能技术应用研究

发布时间：2018-07-10 01:34

本文选题：门窗节能 + 幕墙节能　；参考：《湖南大学》2015年硕士论文

【摘要】：门窗与幕墙是建筑围护结构节能最重要的环节,通过门窗与幕墙的热损失占建筑总能耗的40%~50%,我国的门窗节能技术发展缓慢、产品结构单一,节能效率低下。而幕墙推广迅速,面积占建筑外围护结构的比重越来越大,通过幕墙损失的能耗也越多。为了满足我国“十二五”规划中建筑节能的目标,发展节能门窗,对现有门窗进行节能改造,研发新型节能幕墙,推广使用新型节能门窗与幕墙系统势在必行。本文研究国内外门窗与幕墙节能技术存在的问题和发展趋势,对长沙地区的门窗与幕墙节能技术应用进行优化设计。本文在分析长沙地区的地埋位置和气候特点的基础上,对现有的门窗与幕墙节能技术进行阐述,提出门窗与幕墙节能技术改进的方法。分别从建筑用玻璃,门窗与幕墙铝型材结构、密封材料、五金件的选用等多方面进行综合研究,对门窗与幕墙的节能技术进行集成优化,设计出适合于长沙地区的门窗与幕墙节能系统。本文对长沙市某典型公寓和商业建筑的门窗与幕墙系统进行集成优化设计,并采用粤建科MQMC软件进行热工性能计算和对比分析,得出在相同环境条件下,采用同一种玻璃的隐框幕墙的传热系数比窗户要小,结构更加简单。综合考虑成本和节能效果,可以优先考虑采用增加钢衬的断桥隔热门窗作为外围护结构。最后将集成研究方法应用于高层建筑的单元幕墙系统,分析现有单元式幕墙存在铝材耗量大、面板玻璃破损不易更换和节能效果不佳的特点,设计出两种适合于长沙地区的单元幕墙系统:一种是对单元隐框幕墙的铝型材进行优化,增加部分钢衬加强,节约成本显著;一种是将断桥隔热技术引入明框单元式幕墙系统,节能效果更好。并对隐框单元式幕墙进行四性实验验证,结果表明设计的隐框单元式幕墙系统各项性能均达到了国标最高性能要求。同时对两种幕墙进行热工和经济对比分析,得出单元断桥明框幕墙的传热系数比单元隐框幕墙小了22%,每年可以节省空调电费约9%。
[Abstract]:Windows, doors and curtain walls are the most important links in building envelope structure energy saving. The heat loss of doors, windows and curtain walls accounts for 40% of the total building energy consumption. The energy saving technology of doors and windows in China is slow, the product structure is single, and the efficiency of energy saving is low. But the curtain wall popularizes rapidly, the area occupies the building outer enclosure structure proportion more and more, through the curtain wall loss energy consumption also more. In order to meet the goal of building energy saving in the 12th Five-Year Plan of our country, it is imperative to develop energy-saving doors and windows, to carry out energy saving transformation of existing windows and doors, to develop new energy-saving curtain walls, and to popularize the use of new energy-saving doors, windows and curtain wall systems. In this paper, the problems and development trend of energy saving technology of doors, windows and curtain walls at home and abroad are studied, and the optimization design of the application of energy saving technology of doors, windows and curtain walls in Changsha area is carried out. Based on the analysis of the buried location and climatic characteristics of Changsha area, this paper expounds the existing energy-saving technology of doors and windows and curtain walls, and puts forward the methods to improve the energy-saving technology of doors, windows and curtain walls. From the aspects of glass, door and window and curtain wall aluminum profile structure, sealing material, hardware selection and so on, the energy saving technology of door, window and curtain wall is integrated and optimized. The energy saving system of doors and windows and curtain wall suitable for Changsha area is designed. In this paper, the integrated optimization design of doors and windows and curtain wall system of a typical apartment and commercial building in Changsha is carried out, and the thermal performance is calculated and compared by using the MQMC software of Yuejianke, and it is concluded that under the same environmental conditions, The heat transfer coefficient of the curtain wall with the same glass is smaller than that of the window, and the structure is simpler. Considering the cost and energy saving effect, the insulation doors and windows of broken bridge with additional steel lining can be preferred. Finally, the integrated research method is applied to the unit curtain wall system of high-rise building, and the characteristics of the existing unit curtain wall are analyzed, such as the large consumption of aluminum material, the difficult replacement of panel glass and the poor energy saving effect. Two kinds of unit curtain wall system suitable for Changsha area are designed: one is to optimize the aluminum profile of the unit hidden frame curtain wall, and the other is to introduce the technology of broken bridge heat insulation into the open frame unit curtain wall system. The energy saving effect is better. The experimental results show that all the performances of the system are up to the highest performance requirements of the national standard. At the same time, the heat transfer coefficient of the two kinds of curtain wall is 22 less than that of the hidden frame curtain wall, which can save about 9 percent of the electricity cost of air conditioning every year by comparing the heat transfer coefficient of the two kinds of curtain walls with those of the two kinds of curtain walls.
【学位授予单位】：湖南大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TU228;TU201.5

【参考文献】