电致变色玻璃对办公建筑室内光热环境的控制

将电致变色玻璃实物安装于上海闵行一实验台进行测试。这个实验台包括2个几乎相同的办公建筑会议室,南侧是玻璃窗。其中一个会议室安装电致变色玻璃,可见光透过率为0.01~0.59,另一个会议室安装Low-e玻璃。2个房间均安装了内遮阳帘。研究中分析了电致变色玻璃对室内光环境和热环境的控制效果,同时,与安装Low-e玻璃和内遮阳的会议室的光、热效果进行对比。结果表明,非空调工况时,电致变色玻璃能够提供更均匀、稳定和舒适的室内热环境;同时,电致变色玻璃能够控制室内照度在一定范围内,特别适用于办公建筑室内光环境的舒适性。

Light and Thermal Control Performance of Electrochromic Windows in a Meeting Room

Electrochromic(EC) windows are initiated at a window systems test bed in Minhang, Shanghai. The new facility consists of two same meeting rooms with entire-area windows that face south. In one room, EC windows with a visible transmittance Tv range of 0.01~0.59 were installed. In the other room, Low-e glass windows were installed. There were inside shades installed in both rooms. The study analyses the performance of electrochromic windows in daylighting and thermal environment control. It also compares the effects with Low-e glass windows and inside shade. The results show that electrochromic windows can provide more uniform, stable and comfortable indoor thermal environment when it is not in air conditioning condition. What’s more, electrochromic windows can control indoor illumination within a certain range, which is especially suitable for the office building.