节能门窗的设计与施工
2012-04-23高崇
高崇
摘要:建筑物外门、外窗容易造成热量损失,并且占全部热损失的比重很大。门窗作为建筑围护的重要组成部分,能否配合墙体起到良好的保温隔热作用,减少居室能源流失,在建筑节能减排中有着至关重要的作用。传热系数、气密性、窗墙比与朝向是影响外门、外窗热量损耗的主要因素,从建筑节能的角度对节能门窗进行设计、施工和质量控制,可以大幅度降低热量损耗,是建筑节能的重要问题。
关键词:节能门窗;设计要点;施工要求;门窗材料
Abstract: building outside door, outside the window easy to cause the heat loss, and the proportion of the total heat loss very. Doors and Windows as an important part of building palisade, could cooperate wall have good insulation effect, reduce the energy loss in the bedroom, building energy conservation and emission reduction has a crucial role. Heat transfer coefficient, air tightness, window wall and the ratio is to influence outside door, outside the window heat loss of the main factors, from the Angle of building energy saving energy doors and Windows for design, construction and quality control, can reduce heat loss, it is an important problem of building energy efficiency.
Keywords: energy saving doors and Windows; Design; Construction requirements; Doors and Windows material
中图分类号:V223+.9文献标识码:A 文章编号:2095-2104(2012)
前言
门窗节能主要是从开发新品种型材,使用性能良好的密封条等方面来提出门窗的气密性,提高热阻、减少热传递和室内热量损失,达到节能效果的一门技术。
是改善人类居住环境和世界建筑发展的需要,也是今后建筑技术发展产业升级的重点。本文从建筑节能的角度提出了节能门窗设计要点和施工要求。门窗节能在实施过程中各个环节的重要性及可采取的措施。
外窗、外门热量损耗的因素
(一)外窗、外门的传热系数。外窗、外门的传热系数指的是在单位时间内通过单位面积的传热量,传热系数越大,则在冬季通过门窗的热量损失就越大。而门窗的传热系数又与门窗的材料、类型有关。
(二)外窗、外门的气密性。外门窗的气密性是在门窗关闭状态下,阻止空气渗透的能力。室内温度会受室外风力的影响,门窗气密性等级的高低,对热量的损失影响极大,气密性等级越高,则热量损失就越少,对室温的影响也越小。……
