CAJ | 학술논문

为了实现城市夜景照明节能,研究了城市夜间区域亮度变化所需的能耗变化.根据功率密度值8.9 W/m~2的能耗指标,计算出夜景亮度每提高1 cd/m~2将多耗电能0.84 W,夜间城市区域亮度提高1～2 cd/m~2,在城市亮背景下人的视觉功能难以分辨其效果,但由此增加的电能耗费巨大.在照明条件相同的情况下,建筑饰面材料的光反射特性直接影响景物亮度,通过实验研究了不同建筑饰面材料的光反射特性,并在CIE推荐的漫反射材料照度计算公式的基础上,建立了建筑物照度计算模型.
위료실현성시야경조명절능,연구료성시야간구역량도변화소수적능모변화.근거공솔밀도치8.9 W/m~2적능모지표,계산출야경량도매제고1 cd/m~2장다모전능0.84 W,야간성시구역량도제고1～2 cd/m~2,재성시량배경하인적시각공능난이분변기효과,단유차증가적전능모비거대.재조명조건상동적정황하,건축식면재료적광반사특성직접영향경물량도,통과실험연구료불동건축식면재료적광반사특성,병재CIE추천적만반사재료조도계산공식적기출상,건립료건축물조도계산모형.
In order to realize energy saving of urban nightscape luminance, power consumption was studied with the change of urban luminance. Based on energy consumption indicator(LPD) of 8.9 W/m~2 , it was calculated that about 0.84W more energy consumption would be for 1 cd/m~2 increase of luminance. The effect of 1 to 2 cd/m~2 increase was hard to distinguish for human's visual function under urban nightscape, while the energy consumption was great. Under the same lighting condition, the reflecting characteristics of building surface materials could affect directly the luminance of nightscape. With the study of the reflecting characteristics of different building surface materials, an illumination calculation model for building was proposed based on the formulation of CIE.