Yapıların Cephelerinde Kullanılan Alüminyum Kompozit Malzemelerin Isıl Davranışları: Balıkesir Kent Merkezi Örneği

Öz

Yapı cephelerinin güneş radyasyonu yutuculuk ve yansıtıcılıkları yapının ısı kazanım derecesini ve çevreye yansıyan ısı miktarını etkilemektedir. Bu çalışmanın amacı, son yıllarda yapıların cephelerinde yaygın olarak kullanılan olan alüminyum kompozit cephe kaplama malzemelerinin yapı ısı kazancı ve kentsel ısı adası üzerindeki etkilerini araştırmaktır. Çalışmada, alüminyum kompozit cephe kaplama malzemelerinin güneş radyasyonu karşısındaki davranışları araştırılmıştır. Çalışma kapsamında, farklı renklerdeki alüminyum kompozit malzemeler farklı yöntemlerle incelenmiş, çalışma bölgesi olarak Türkiye’nin batısında yer alan ve son yıllarda hızla gelişmekte olan Balıkesir kenti seçilmiştir. Deneyler sonucunda beklenildiği gibi koyu renkli malzemelerin ısı yutuculuğunun daha fazla olduğu görülmekle beraber ısı yansıtıcılık açısından açık renkli malzemeler ile koyu renkli malzemeler arasında anlamlı bir fark görülmemiştir. Yapılan deneyler sonucunda açık renkli malzemelerin gerek ışınım düzeylerinin düşük olması gerekse de yansıtma düzeylerinde koyu renkli malzemelere göre dikkate değer bir farklılık olmaması sebebiyle, ışınım ve ısı yansıtma açısından tercih edilebilir durumda olduğu sonucuna varılmıştır.

Anahtar Kelimeler

• Alüminyum Kompozit Panel
• Cephe Kaplaması
• Isı Emme
• Isı Yansıtma
• Isı Adası.

Teşekkür

Mimar Sinan Güzel Sanatlar Üniversitesi, Yapı Fiziği ve Malzemesi Ana Bilim Dalı’na desteklerinden dolayı ve ayrıca ankete katılarak çalışmaya katkı sunan mimar meslektaşlarımıza teşekkür ederiz.

Thermal Behavior of Aluminum Composite Materials Used on the Facades of Buildings: Balıkesir City Center Example

Öz

The solar radiation absorption and reflectivity of building facades affect the degree of building heat gain and the amount of heat reflected to the environment. The aim of this study is to investigate the effects of aluminum composite facade cladding materials, which have been widely used on the facades of buildings in recent years, on building heat gain and urban heat island. In the study, the behavior of aluminum composite facade cladding materials against solar radiation was investigated. Within the scope of the study, aluminum composite materials of different colors were examined with different methods, and the city of Balıkesir, which is located in the west of Turkey and has been developing rapidly in recent years, was chosen as the study area. As a result of the experiments, it was seen that the heat absorbency of dark-colored materials was higher, as expected, but no significant difference was observed between light-colored materials and dark-colored materials in terms of heat reflectivity. As a result of the experiments, it has been concluded that light-colored materials are preferable in terms of radiation and heat reflection, both because their radiation levels are low and because there is no significant difference in their reflection levels compared to dark colored materials.

Anahtar Kelimeler

• Aluminium Composite Panel
• Cladding
• Heat Absorption
• Heat Reflection
• Heat Island.

Kaynakça

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