Decision on Window-wall Ratio and Window Materials of Typical Office Buildings in Shanghai Based on LCA
Window-wall ratio is limited strictly according to the designing norm of a building in hot summer and cold winter region in China by which the energy consumption of building use phase is determined.Theoretically,all life-cycle phases of buildings should be studied to understand the total energy consumption and environmental emissions of different window-wall ratios.This paper discusses the relationship between environmental impact and window-wall ratio of several types of windows by the method of LCA based on one office building in Shanghai.The results showes that the window-wall ratio can be larger than the upper limit of the criterion,and the window-wall ratio of common type window has a great influence on the life-cycle environmental burden,especially as northward.But for the hollow glass window or Low-E hollow glass window,the window-wall ratio has a little influence on the life-cycle environment burden,and for Low-E hollow glass window southward,the environmental impact decreases with the increasing of the window-wall ratio.Improving window materials is more effective than controlling window-wall ratio for decreasing the life-cycle environmental impact.The life-cycle environmental impact of the building with low-E hollow glass window is about 25% less than that with monolayer glass window.
Life-cycle assessment Inventory analysis Window materials Window-wall ratio Environmental emission
Xing Su Xu Zhang
HVAC & Gas Research Institute,Tongji University,Shanghai 200092,China HVAC & Gas Research Institute,Tongji University,Shanghai 200092,China
国际会议
The First International Conference on Building Energy and Environment(第一届建筑能源与环境国际会议)
大连
英文
168-175
2008-07-01（万方平台首次上网日期，不代表论文的发表时间）