动态采光下中小学教室调光照明“天花—工作面”照度关联性的模拟研究——以北京地区为例  

A Simulation Study on the Illuminance Correlation of“Ceiling-Tasking Surface”Dimming Lighting in Primary and Secondary School Classrooms With Dynamic Daylighting——A Case Study in Beijing

作　　者：刘博[1] 张译丹 LIU Bo;ZHANG Yidan(Beijing University of Civil Engineering and Architecture,Beijing 100044,China)

机构地区：[1]北京建筑大学,北京100044

出　　处：《照明工程学报》2023年第5期161-166,共6页China Illuminating Engineering Journal

摘　　要：中小学教室的日常照明耗电量大,现今在利用天然光、精准调光控制等方面仍具有较大节能潜力。通过在教室天花布置照度传感器,实时监测教室工作面(课桌面)照度并对照明进行精准线性调光,是进一步充分利用天然光、实现照明智能调光控制的优化方向之一。通过天花传感器测得的照度推导工作面实际照度的关联性研究是保障该照明体系精度和性能的重要研究内容。既有此方向研究多在静态全云天空模型下开展,未考虑晴天下教室的复杂采光状态。本文以北京地区典型中小学南向教室为例,在动态采光条件下,开展教室工作面与天花板天然光照度的时间与空间关联性的模拟研究,得到二者在1~12月的9:00—16:00点内存在较明显线性关系,这一研究结论更贴近实际情况,能够为兼顾教室照明节能优化研究与实践提供方法借鉴,进一步贯彻“采光优先,照明优化”的照明理念。The daily lighting of primary and secondary school classrooms consumes a lot of electricity,which still has great energy saving potential in the use of natural light,precise dimming control and other aspects.Installing illuminance sensors on the classroom ceiling to monitor the illuminance at the task surface(desktop)in real-time and enabling precise linear dimming control of lighting is one of the optimization directions for fully utilizing natural light and achieving lighting control.The research on the correlation between the illuminance measured by ceiling sensors and the actual illuminance at the task surface is an important study to ensure the accuracy and performance of the lighting system.Most researches in this direction has been mostly carried out under static overcast sky models,and has not taken into account the complex daylighting conditions in classrooms on sunny days.In this paper,the south-facing classroom of typical primary and middle schools in Beijing is taken as an example.Under the condition of dynamic lighting,the time and spacial correlation of the natural illumination of the work surface and ceiling of the classroom is simulated.It is found that the linear relationship exists between the two during 9:00 to 16:00 in the period from January to December.This research conclusion is more closely aligned with real-world conditions and can provide a methodological reference for research and practices aiming to optimize classroom lighting while considering energy efficiency.It further promotes the lighting philosophy of“daylighting first,lighting optimization”.

关 键 词：教室 动态采光 照明调光控制 传感机制 

分 类 号：TU113.5[建筑科学—建筑理论] TU113.6