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

Öz

Son yıllarda sıkça konuşulan sürdürülebilirlik kavramı ile birlikte mekânsal konfor şartlarının daha fazla iyileştirilmesi tasarımcılardan daha çok talep edilmeye başlanmıştır. Enerji etkinliğinin de tasarımda daha fazla konuşuluyor olması, tasarımcıları bu konuları tasarım evresinin daha erken aşamalarında düşünmeye yönlendirmiştir. Yapay aydınlatmaya temiz, kesintisiz enerji ve uygun maliyetli bir alternatif olarak görülen gün ışığı iyi renksel geri verimi nedeniyle de bireylerin görsel açıdan konforda olmasını sağlamaktadır. Tüm bilinen bu avantajlara rağmen, önemli bir girdi olan gün ışığına etki eden parametreler göz önünde bulundurulup, yapay aydınlatmanın oluşturduğu enerji tüketim oranını en aza indirecek şekilde tasarım kriterleri oluşturulamamıştır. Bu çalışma, gün ışığından optimum seviyede faydalanmak için, ideal pencere kavramını ve diğer parametreleri kullanarak aydınlatmada enerji tasarrufu sağlamaya yönelik bir araştırma sunmaktadır. Çalışma en kötü durum senaryolarını temsil ettiklerinden bulutlu gökyüzü ve derin oda koşulları altında uygulanmıştır. Zaman alıcı matematiksel hesaplamalara alternatif olan aydınlatma simülasyon programı Velux Daylight Visualizer ile yatay, dikey, kare ve çatı pencereleri için ayrı ayrı üç boyutlu tasarım yapılıp, bu pencerelerin gün ışığı faktörüne etkileri analiz edilmiştir. Ayrıca iç ortamda bulunan farklı mobilya renklerinin etkisi de incelenmiştir. Yapılan incelemelerden sonra, çatı pencerelerinin diğerlerine kıyasla daha fazla gün ışığı ürettiği görülmüştür. Fakat çatı pencereleri katlı binalarda kullanılamayacağından yatay, dikey ve kare pencereler arasında kıyaslama yapılmış ve üst duvara yakın yerleştirilen yatay pencerelerin diğerlerine göre daha verimli olduğu sonucuna ulaşılmıştır. Buna ek olarak, açık ve koyu olarak sınanan mobilyalardan açık renkli olanların diğerine kıyasla daha çok gün ışığı ürettiği görülmüştür.

Anahtar Kelimeler

• Gün ışığı Faktörü
• Pencere Boyutu
• Velux Daylight Visualizer
• Enerji Tasarrufu

Energy-Efficient Lighting Design: An Investigation of Optimal Daylight Use in Different Window Sizes

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.

Keywords

• Daylight Factor
• Window Size
• Velux Daylight Visualizer
• Energy Savings

Kaynakça

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