排风隔热窗的生命周期评价

发布时间：2018-06-20 14:56

本文选题：排风隔热窗 + 生命周期评价　；参考：《华中科技大学》2015年硕士论文

【摘要】：在持续发展成为社会共识的背景下,由于外窗的保温隔热性能差,排风隔热窗以降低通过窗户的负荷为目的,并作为新型的建筑外窗结构被提出。本文采用生命周期评价的方法,结合全生命周期的能源计算模型和环境排放计算模型,计算对比排风隔热窗和双层中空窗户在生命周期内的能源消耗情况和环境排放情况。并以办公建筑为研究对象,研究了南向外窗在以武汉、广州、北京、昆明、哈尔滨为代表的五个不同气候区情况下,通过建立传热数学模型并在Matlab上求解,计算不同气候区条件下外窗的全年传热负荷;及武汉地区不同朝向的情况下,排风隔热窗的节能减排情况。从而结合外窗的生命周期评价结果,分析外窗在从生产到最后的拆除处理的整个生命周期内的排风隔热窗的节能减排效果。研究表明,排风隔热窗在不同气候区均能达到节能减排的目的。考虑到外窗自身的能源消耗和环境排风情况,当默认为外窗的使用寿命均为25年时,武汉。广州、北京、哈尔滨均能有效的节约能源,降低环境排放;而相对于昆明,效果并不那么明显,但是仍然可以从一定程度上降低能源的消耗和环境的排放。在武汉,而对于不同朝向的情况,在东、西向时,节能效果较好;然而在北向时,节能效果不明显,但是依然可以达到节能减排的目的。总之,对排风隔热窗和双层中空窗的生命周期评价研究发现,排风隔热窗的整体环境影响要优于双层中空窗户,同时也能节约能耗。
[Abstract]:Under the background of sustainable development, due to the poor thermal insulation performance of the outer window, the purpose of the exhaust air insulation window is to reduce the load through the window, and it has been proposed as a new type of building outer window structure. In this paper, the method of life cycle evaluation is used to calculate and compare the energy consumption and environmental emission of exhaust air insulation window and double-layer hollow window in the life cycle, combined with the whole life cycle energy calculation model and the environment emission calculation model. Taking the office building as the research object, the paper studies the southward window in five different climate zones, such as Wuhan, Guangzhou, Beijing, Kunming and Harbin, by establishing a mathematical model of heat transfer and solving it on Matlab. The annual heat transfer load of the outer window in different climatic regions and the energy saving and emission reduction of the exhaust air insulation window in different directions in Wuhan are calculated. Based on the results of life cycle evaluation of outer windows, the energy saving and emission reduction effects of exhaust air insulation windows in the whole life cycle from production to final removal are analyzed. The results show that the exhaust air insulation window can achieve the purpose of energy saving and emission reduction in different climate regions. Considering the energy consumption of windows and the circumstance of environmental exhaust, when the service life of outer windows is 25 years by default, Wuhan. Guangzhou, Beijing, Harbin can effectively save energy, reduce environmental emissions; compared with Kunming, the effect is not so obvious, but still can reduce energy consumption and environmental emissions to a certain extent. In Wuhan, the energy saving effect is better in the east and west directions, but the energy saving effect is not obvious in the north direction, but it can still achieve the purpose of energy saving and emission reduction. In a word, the life cycle evaluation of exhaust and double-layer windows shows that the overall environmental impact of exhaust insulation window is better than that of double-layer hollow window, and energy consumption can be saved at the same time.
【学位授予单位】：华中科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TU228

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