Design and Performance Assessment of Photovoltaic Building Envelopes for a Prototype Office Building in the Mediterranean

Abstract

In recent years, with the depletion of energy resources, studies on the use of renewable and clean energy sources have increased rapidly. The use of renewable energy sources is particularly prominent in the construction sector, which has a high energy consumption. This study examines the energy performance of Building-Integrated Photovoltaic (BIPV) systems applied to different façade designs in a prototype office building in the Mediterranean climate, specifically designed for renewable energy use in buildings. Four different PV façade design scenarios were determined for the prototype building, and energy performance analyses were conducted using the DesignBuilder simulation program. In this context, energy performance values such as Energy Coverage Ratio (ECR) and Self-Consumption Ratio (SCR) of the scenarios were compared. As a result of the comparison, the S2 inclined PV façade demonstrated the highest ECR (42.92%) and the lowest SCR (70.9%). The findings show that facade designs and the application of PV systems are important elements in determining the building energy performance and can meet a significant portion of the energy consumption. The study contributes to the evaluation of energy performance arising from differences in PV system applications in façade designs during the building's preliminary design process.

Keywords

• BIPV
• building envelope
• office building
• facade design
• energy performance

Akdeniz'deki Prototip Ofis Binası için Fotovoltaik Bina Kabuğu Tasarımı ve Performans Değerlendirmesi

Abstract

Son yıllarda enerji kaynaklarının tükenmesi ile birlikte yenilenebilir ve temiz enerji kaynaklarının kullanılmasına yönelik çalışmalar hızla artmıştır. Özellikle yüksek enerji tüketimine sahip olan yapı sektöründe yenilenebilir enerji kaynaklarının kullanımı ön plana çıkmaktadır. Çalışmada, binalarda yenilenebilir enerji kullanımına yönelik Akdeniz ikliminde prototip ofis binasına farklı cephe tasarımları ile uygulanan BIPV (Building Integrated Photovoltaic) sistemlerin enerji performansları incelenmektedir. Prototip bina üzerinden dört farklı PV cephe tasarım senaryosu belirlenerek enerji performans analizleri DesignBuilder simülasyon programı aracılığıyla gerçekleştirilmiştir. Bu bağlamda senaryoların enerji karşılama oranı (Energy Coverage Ratio - ECR), öz tüketim oranı (Self-Consumption Ratio - SCR) gibi enerji performans değerleri karşılaştırılmıştır. Karşılaştırma sonucunda, S2 eğimli PV cephe en yüksek ECR (%42,92) ve en düşük SCR (%70,9) değerlerini göstermiştir. Ulaşılan bulgular, cephe tasarımları ve PV sistemlerinin uygulanma biçimlerinin bina enerji performansını belirlemede önemli bir unsur olduğunu ve enerji tüketiminin önemli bir kısmını karşılayabileceğini göstermektedir. Çalışma bina ön tasarım sürecinde, cephe tasarımlarında PV sistem uygulamalarındaki farklılıklardan kaynaklı enerji performansının değerlendirilmesine yönelik katkı sunmaktadır.

Keywords

• BIPV
• cephe tasarımı
• yapı kabuğu
• ofis binası
• enerji performansı

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