高层建筑非透明围护结构太阳辐射的计算

Solar Radiation Calculation for Opaque Wall of High Rise Buildings

太阳辐射是影响夏热冬暖地区高层建筑能耗的重要因素。为此,发展了计算建筑非透明围护结构太阳辐射的方法,计算中考虑到太阳直射辐射、天空散射辐射、地面反射辐射和大气长波辐射的作用,还考虑了建筑群的自遮挡和互遮挡。计算了一组周边型分布的高层建筑屋顶和东、南、西、北外墙的太阳辐射热流的逐年变化和逐时变化。

Solar radiation is one of important factors to influence energy consumption of high rise buildings in Guangzhou. The method to compute solar radiation on opaque wall of buildings was developed for that case. The direct solar radiation, sky diffuse radiation, ground re flected radiation and air radiation were considered when calculating. Also, the self blockoff and mutual blockoff of buildings were considered, As the sample, the changes of solar radiation fluxes in different directions of one surrounding high rise building were calculated, which include the top, eastern, southern, western and northern walls.