Window Sizing Procedures based on Vertical Illuminance and Degree of Discomfort Glare in Buildings Interiors
Window Sizing Procedures based on Vertical Illuminance and Degree of Discomfort Glare in Buildings Interiors
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基于建筑物内部垂直照度和不舒适眩光程度的窗户尺寸调整程序
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
M. Boubekri
中科院分区：
文献类型：
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作者：
M. T. Araji;M. Boubekri
本研究概述了一种简化的数学方法，根据两个照明质量指标，即不适眩光和垂直照度，确定给定房间的窗户尺寸。前者代表视觉舒适度，用日光眩光指数（DGI）表示。后者反映了接受足够的光照射以保持最佳健康和心理健康的方面。它由眼睛水平的垂直照度表示。结果提供了一个公式，该公式提出了窗口宽度，窗口高度和空间中给定点的特定（期望）深度之间的简单关系。一个通用的设计场景用于说明当前的方法。检查的采光设计标准为DGI=20, Ev= 2500勒克斯。综上所述，本文提出眩光标准作为现有国家窗户尺寸程序的补充，该程序基于关键照度水平（或与关键视觉任务相对应的工作平面上的最小日光因子）和关键外部条件（发生在缺乏阳光和CIE Overcast Sky标准的情况下）。
Abstract This study outlines a simplified mathematical approach to determine window dimensions for a given room based on two lighting quality indicators, namely, discomfort glare and vertical illuminance. The former represents visual comfort and is expressed in terms of daylight glare index (DGI). The latter reflects on the aspect of receiving sufficient light exposure to maintain optimal health and psychological wellbeing. It is represented by vertical illuminance at the eye level. The result offers a formula that puts forward a simple relationship between the window width, the window height and a specific (desired) depth of a given point in the space. A generic design scenario is used to illustrate the current method. The examined daylighting design criteria are of DGI=20 and Ev= 2500 lux. In conclusion, this paper proposes the glare criterion as additional to existing national window sizing procedures based on critical illuminance levels (or minimum daylight factor on the working plane corresponding to the critical visual tasks) and critical exterior conditions (that occur with absence of sunlight and a CIE Overcast Sky standard).