基于系数优化的室内空间自然采光系统设计

Design of indoor natural lighting system based on coefficient optimization

室内自然采光系数受到建筑进深、开间比因素影响,提出基于系数优化的室内空间自然采光系统设计。将室外照度临界值和现行规范的采光参数标准相结合,采用虚拟现实技术进行环境模拟,获取最优室内空间自然采光系数方案,根据综合环境特性、材料等要素对建筑平面进行合理布置,通过建筑进深与开间之比以及工作面照度值之间的关系获取最佳的数值比,利用上述结果动态调整室内空间采光口的形状,优化室内的自然采光。实验结果表明,在最大窗墙面积比时,可采用的南北向平均进深与开间之比为1~1.35,阴天时,房间远窗区工作面照度特别低于近窗区,晴天时,房间内有直接采光的现象,近窗区有直接采光较差的现象,通过优化系数降低了采光成本,极大地改善了自然采光的效果。

The interior natural lighting coefficient is influenced by the factors of building depth and ratio of opening to opening.The design of interior space natural lighting system based on coefficient optimization is proposed.Combining the critical value of outdoor illuminance with the standard of lighting parameters in the current code,using virtual reality technology to simulate the environment,obtaining the optimal scheme of natural lighting coefficient of indoor space,reasonably arranging the building plane according to the comprehensive environmental characteristics,materials and other elements,and obtaining the optimal numerical ratio through the ratio of building depth to opening and the relationship between the illuminance value of the working face With the above results,the shape of the daylight opening in the interior space is dynamically adjusted,and the natural daylight in the interior is optimized.The experimental results show that when the maximum window wall area ratio is 1~1.35,the ratio of the North-South average depth to the opening is 1~1.35.In cloudy days,the illuminance of the working face in the far window area is particularly low compared with that in the near window area.In sunny days,there is direct South light in the room,and direct light in the near window area is serious.Through the optimization coefficient,the lighting cost is reduced greatly To improve the effect of natural lighting.