Enerji Verimli Aydınlatma Tasarımı: Farklı Pencere Boyutlarında Optimum Gün Işığı Kullanımı Üzerine Bir Araştırma

Abstract

In recent years, with the frequently discussed concept of sustainability, designers have been increasingly demanded to improve spatial comfort conditions. The growing emphasis on energy efficiency in design has led designers to consider these issues at earlier stages of the design process. Daylight, seen as a clean, uninterrupted energy source and a cost-effective alternative to artificial lighting, also ensures visual comfort for individuals due to its good color rendering. Despite all these well-known benefits, design criteria have not been established to reduce the energy consumption rate caused by artificial lighting while taking into account the factors affecting daylight, an important input. This study presents an investigation aimed at achieving energy savings in lighting by using the ideal window concept and other parameters to optimally benefit from daylight. The study has been applied under cloudy sky and deep room conditions, which represent the worst-case scenarios. As an alternative to time-consuming mathematical calculations, the Velux Daylight Visualizer lighting simulation program was used to create three-dimensional designs for horizontal, vertical, square, and roof windows separately, and the effects of these windows on the daylight factor were analyzed. The impact of different furniture colors in the interior space was also examined. Following the investigations, it was observed that roof windows produced more daylight compared to others. However, since roof windows cannot be used in multi-story buildings, a comparison was made between horizontal, vertical, and square windows, and it was concluded that horizontal windows placed close to the upper wall were more efficient than the others. In addition, it was observed that lighter-colored furniture, among the light and dark furniture, produced more daylight compared to the other.