气凝胶玻璃在东北地区建筑应用的采光及能耗模拟研究

Simulation study on lighting and energy consumption of aerogel glass used in buildings in Northeast China

采用Ecotect Analysis 2015和DeST软件,探究气凝胶玻璃作为围护结构对东北地区建筑的采光及建筑能耗的影响,模拟地址选取沈阳,模拟时间为1年,模拟模型为普通二层办公建筑。结果显示,光学性能方面,气凝胶玻璃应用后的可见光照度均能达到标准最低要求495lx,室内最低也达到540lx,天棚玻璃光线直射处的可见光照度降低了1419.3lx,避免了眩光;热学性能方面,相较于同样厚度的传统中空玻璃系统,使用气凝胶玻璃模拟的室内全年冷负荷量降低了10.65个百分点。研究发现,气凝胶玻璃作为建筑外围护结构时,可保证建筑应有的采光效果,在提高采光舒适度的前提下还能有效降低建筑能耗。

Ecotect Analysis 2015 and DeST software are used to explore the influence of aerogel glass as envelope structure on daylighting and building energy consumption of buildings in Northeast China.The simulation location is Shenyang,the simulation time is one year,and the simulation model is an ordinary two-story office building.The results show that in terms of optical performance,the visible light illuminance after aerogel glass application can meet the minimum requirements of 495lx in related standard,and the minimum indoor illuminance can also reach 540lx.The direct light illuminance under the ceiling glass is reduced 1419.3lx,effectively avoiding glare.In terms of thermal properties,compared with the traditional insulating glass system with the same thickness,the annual indoor cooling load simulated with aerogel glass is reduced by 10.65 percentage points.It is found that when aerogel glass is used as the building envelope,it can ensure the lighting effect of the building,improve the lighting comfort,and effectively reduce the building energy consumption.