太阳辐射得热在玻璃幕墙建筑中的非均匀分布研究
Numerical simulation on non-uniform distribution of solar radiation heat in glass curtain wall buildings
陆舜瑶 1黄晓庆 1王正之1
作者信息
- 1. 南京工程学院 能源与动力工程学院,江苏 南京 211167
- 折叠
摘要
太阳辐射得热在不同条件下具有显著的强度差异,这种非均匀性在玻璃幕墙建筑中尤为明显.传统的室内辐射环境均匀分布的假设并不适用于玻璃幕墙建筑.文章通过数值模拟分析太阳辐射在不同朝向的大窗墙比建筑室内分布特性.室内太阳辐射分布呈现明显不均匀性,不同壁面有不同太阳辐射分配比.对于直射辐射,地面的分配比远大于室内其余壁面,夏至日地面太阳辐射分配比可达87%.在建筑单一壁面上太阳辐射分布也存在显著不均匀性.各壁面近窗区域的太阳辐射分布强度大于远窗区域,太阳直射辐射对壁面上太阳辐射不均匀性分布是决定性影响因素.
Abstract
The intensity of solar radiation varies significantly under different conditions,and this non-uniformity is par-ticularly evident in glass curtain wall buildings.The traditional assumption of uniform distribution of indoor radiation environment is not applicable to glass curtain wall buildings.Through numerical simulation,the distribution character-istics of solar radiation in buildings with large window-to-wall ratios in different orientations are analyzed.The indoor solar radiation distribution shows significant unevenness,with different wall surfaces having varying ratios of solar radi-ation distribution.For direct radiation,the distribution ratio of ground solar radiation is much higher than that of other indoor walls,reaching up to 87% on the summer solstice.There is also significant unevenness in the distribution of so-lar radiation on a single wall of a building.The intensity of solar radiation distribution in the near-window area of each wall is greater than that in the far-window area,with direct solar radiation being the decisive factor affecting the uneven distribution of solar radiation on the wall.
关键词
玻璃幕墙/太阳辐射得热/非均匀分布/辐射环境Key words
glass curtain wall/heat generated by solar radiation/non-uniform distribution/radiation environment引用本文复制引用
出版年
2024
NETL
NSTL
万方数据