الفهرس 
chapter 1Only 14 pages are availabe for public view
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Abstract
Daylighting represents an important factor in human’s life , well-being and causes more productivity in space and place . In recent studies , advanced daylighting systems and innovative materials could and improve illuminate of interior space and healthy indoor environment. The aim of the current study is to improve window design in buildings according to daylighting requirements and design recommendations, to enhance daylighting performance of the indoor environment and reduce energy consumption of using artificial lighting in a day.
In the same context, the study focuses on using light shelf system as advanced daylighting systems. In this daylighting study, were performed in which the IES metric Spatial Daylight Autonomy (SDA 300/50%) ,daylight availability as well as annual daylight glare probability (DGP%) ,were analyzed to improve daylighting distribution into residential area , in bed room space as the simulated case study , which has specifications is (4 x 4 m2) ,(4 x 5 m2) area and 3.00 m height, where is a reference room of a minimum area opening to external wall (WWR 15%) and using physical properties of room surfaces and reflectivity of materials . (Diva-For- Rhino plug-in for Rhinoceros was used to interface radiance and Dayism while Grasshopper Plug in for Rhinoceros to analyze and evaluate to 864 configurations to optimize cases.
This search aims to reach healthy distributed curve of indoor environmental daylighting , (1 : 0.30: 0.10) to achieve visual comfort and task performance to man’s life, enhance daylighting performance, Depends on the best position of light shelf system , in overcast sky condition in Sinai.