办公建筑侧面采光优化分析

Optimization Analysis of Side Daylighting in Office Building

为改善室内光环境、降低办公建筑的照明能耗,通过Ecotect软件建立模型,利用Radiance软件计算分析了窗墙比、透射率、进深和窗台高对采光效果的影响。结果表明,4个因素均对采光效果具有显著影响,且影响的显著性依次为窗墙比、进深、透射率和窗台高。在此基础上,通过正交试验进行综合优化方案设计,分析不同因素组合方案的采光系数,确定最优组合方案,实现了采光效果优化87.27%。模拟结果与标准给出的结果和实测结果差异率均很小,充分验证了计算的正确性。

To improve the indoor light environment and reduce the lighting energy consumption of office buildings, the model is established by the Ecotect software and the influences of window wall ratio, transmittance, depth and sill height on daylighting effect are calculated and analyzed by the Radiation software. The results indicate that the four factors have significant influence on the daylighting effect, and the influence significance order is the ratio of window to wall, depth, transmittance and sill height. On this basis, through the orthogonal test, the comprehensive optimization scheme is designed, the daylighting coefficient of different factors combination scheme is analyzed, the optimal combination scheme is determined, and the daylighting effect is optimized by 87.27%. The difference rate between the simulation results and the results given by the standard and the measured results is very small, which fully verifies the correctness of the calculation.