Binalarda enerji performansının arttırılması amacıyla kullanılan yalıtım malzemelerinin Net bugünkü değer yöntemi ile maliyet analizi

Öz

Günümüzde, enerji kaynaklarının etkin ve verimli kullanılmasına dair çözümler üretilmesi hemen her sektörde öncelikli alanlar arasında yer almaktadır. Enerji tüketimi açısından, bina sektöründe geliştirilen her bir çözüm, toplam enerji tüketiminin azaltılmasında büyük etkiye sahiptir. Bu çalışmada; Türkiye’de 1. Derece gün bölgesinde yer alan bir binada, enerji performansını arttırmak amacıyla; duvar ve çatıda kullanılan farklı tipte yalıtım malzemeleri, maliyet etkinlik açısından araştırılmıştır. Duvar ve çatı için yaygın olarak tercih edilen dörder yalıtım malzemesi belirli kalınlıklarda test edilmiştir. Belirlenen kalınlıklara ait senaryolar Design builder simulasyon programı ile simule edilerek enerji tüketim değerleri saptanmıştır. Her bir alternatifin ilk yatırım maliyetleri hesaplanmış ve enerji tasarrufları saptanmıitır. İlk yatırım maliyetleri ve elde edilen enerji tasarrufları, Net Bugünkü değer yöntemine göre değerlendirilerek her bir alternatifin öncelik sıralaması ortaya konmuştur. Elde edilen sonuçlara göre çalışmada kullanılan malzemeler karşılaştırıldığında; çatı için Net bugünkü değeri en yüksek malzeme cam yünü, duvar için ise net bugünkü değeri en yüksek malzemenin taş yünü olduğu belirlenmiştir.

Anahtar Kelimeler

• Net Bugünkü Değer,
• yalıtım malzemesi
• maliyet etkinlik
• binalarda enerji performansı

Cost analysis of insulation materials used to increase energy performance in buildings with Net Present Value method

Abstract

Today, producing solutions for the effective and efficient use of energy resources is among the priority areas in almost every sector. In terms of energy consumption, each solution developed in the building sector significantly reduces total energy consumption. In this study, different types of insulation materials used in walls and roofs were investigated in terms of cost-effectiveness to improve the energy performance of a building located in the 1st-degree day zone in Türkiye. Four commonly preferred insulation materials for walls and roofs were tested at specific thicknesses. The Design-Builder simulation program simulated scenarios for the specified thicknesses, and energy consumption values were determined. The initial investment costs of each alternative were calculated, and energy savings were determined. The initial investment costs and energy savings were evaluated according to the Net Present Value method, and each alternative's priority ranking was revealed. According to the results obtained, when the materials used in the study are compared, it is determined that the material with the highest net present value for the roof is glass wool, and the material with the highest net present value for the wall is stone wool.

Keywords

• Cost-effectiveness
• energy performance of buildings
• insulation material
• Present Net Value

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