Trend of Dynamic Glass in Green Building
After hundred years(200 to 300 years)when “redox-coloration chemistry has been discovered; and the research and development on “electrochromism which has been published for the recent fifty years; and a decade of the emergence of the electrochromic and thermochromic glass in the market,dynamic glass is one of the new trends in the green building development and help earning credit points for green building certification.Tint of the dynamic glass is adjustable(tintable,darkened from clear)as an automatic sun-shading device when it responses to the environment which is dynamically changing including sunlight,temperature and weather.Chromogenic material is used in the dynamic glass which is darkened at the presence of a physical property(such as heat,ions,UV or gas)and returning to clear when the property disappears.Electrochromic(EC)and thermochromic(TC)and are two of the major chromogenic technologies found in the market,nowadays,as the dynamic glass in building industry,such that they change color in response to the presence of ions and heat,respectively.The benefits of dynamic glass in buildings is to reduce the solar heat gain,UV and glare without any shading device(s),either external shading and side fins or internal blinds and curtain,and without reducing the natural daylight performance because it is always see-through,and hence enhancing the comfort level of occupant at any time.The SHGC(solar heat gain coefficient)per each dynamic glass is typically varying from 0.1 to 0.4 with the Tvis(visible light transmission rate)from 6%to 60%,respectively.The reduction of solar heat gain,cooling electricity consumption and peak cooling loading is better than the conventional low-E glazing by 58%,10%and 22%respectively,and hence the overall energy cost saving is 17%to 30%which makes it the next generation of glazing in buildings.
energy saving high-performance building dynamic glass
HY CHIU
Full Treasure,Hong Kong SAR
国际会议
2017世界可持续建筑环境大会(the World Sustainable Built Environment Conference)
香港
英文
2857-2864
2017-06-05（万方平台首次上网日期，不代表论文的发表时间）