夏时制对北京地区住宅建筑的照明能耗影响研究

本文通过DeST软件模拟北京地区一栋典型住宅建筑的天然采光逐时照度,进而计算该建筑的照明能耗,比较在标准北京时间和实行夏时制时的照明能耗分布特点。通过分析可得出结论:对于北京地区的住宅建筑,夏时制可以节约照明能耗;夏时制的起止日期可以考虑从三月第四个星期开始到九月第三个星期结束;在此期间,采用夏时制可节约照明能耗7.95%。

Impact of daylight saving time on lighting energy consumption of residential building in Beijing

The simulation soft DeST is used to predict a residence’s hour-by-hour luminosity. Then the annual lighting energy consumption could be calculated. The results show that for this residence building,which is somewhat typical of Chinese residence buildings,daylight saving time should begin on the fourth Monday in March and end on the third Sunday in September in Beijing; and the total annual lighting energy consumption is decreased by 7.95% when summer daylight saving time is used instead of standard time year round.