窗玻璃节能技术进展

Energy Conservation Technology Progress of Window Glazing

最大程度地利用太阳的光照和能量是节能减排的重要途径。对建筑物节能而言,通过玻璃窗可调节性地吸收或反射太阳光,减少建筑物在夏季保持凉爽和冬季保持温暖而必须消耗的大量能源,是节能建筑首要解决的问题。本文综述了最具发展前景的智能调光玻璃、真空玻璃、气凝胶玻璃等新型节能窗玻璃的技术进展。分析认为在保证采光照明前提下,节能建筑的窗玻璃的传热系数应小于0.7 W/(m^2·K)。提出将Low-E玻璃、自清洁玻璃、光伏发电玻璃、相变储能材料、电致变色玻璃、真空玻璃、气凝胶玻璃等技术结合,可以达到减小传热系数,同时提高玻璃窗的节能效果。

It is an important way to maximize the use of the sun＇s light and energy for energy conservation and emission reduction.For building energy conservation, if window glazing can reflect or absorb sunlight in regulatory, it will reduce a lot of energy to keep the building cool in the summer and warm in the winter, which is the first problem to solve for building energy conservation.In this paper, the most potential glazing technologies of energy conservation such as tintable smart glazing, vacuum glazing, aerogels glazing, electrochromic glazing windows were reviewed. It is indicated that the thermal transmittance of the glazing windows of energy conservation buildings should be less than 0.7W/（m^2 ·K）on the premise of enough daylighting.To reduce the thermal transmittance and improve the energy conservation of the glazing windows, the solution is selective integrating of low-emissivity（Low-E）glazing, self-cleaning glazing, solar cell glazing, phase change material glzaing, electrochromic glazing,vacuum glazing, aerogels glazing, etc.