Dış duvara entegre edilen faz değiştiren malzemenin kalınlığı ve erime sıcaklığının bina enerji performansı ve CO2 emisyon azalımına etkisi

Öz

Bu çalışmada, bina dış duvara entegre faz değiştiren malzemenin çeşidi, kalınlığı, erime sıcaklığına bağlı olarak bina enerji performansı üzerine etkisi incelenmiştir. Bir villa konut projesi DesignBuilder enerji simülasyon yazılımında üç boyutlu olarak modellenerek duvar içerisinde faz değiştiren malzemelerin, konumu, kalınlığı ve erime sıcaklığı değiştirilerek iki farklı dış duvar tipi tasarlanmıştır. Faz değiştiren malzemelerin binanın ısıtma sisteminin yakıt çeşidine göre sağlayacağı CO2 emisyon azalım miktarları hesaplanmıştır. Dış duvarda faz değiştiren malzemelerin kullanılması sadece yüksek oranda ısıtma ve soğutma enerjisi tasarrufu sağlamakla kalmaz, aynı zamanda sıcaklık dalgalanmalarını da azaltarak iç ortamların termal konforunu da artırır. Hem soğutma hemde ısıtma enerjisi ihtiyacını düşürmede FDM’nin 23°C erime sıcaklığı diğer sıcaklıklara göre oldukça iyi performans göstermektedir. FDM’nin katman sayısının artmasıyla ısıtma enerjisi ihtiyacında % 18,81 soğutma enerjisi ihtiyacında %22,85 oranında tasarruf sağlanabilir. Dış duvar tipi, faz değiştiren malzeme cinsi, farklı FDM kalınlıkları ve erime sıcaklıklarına bağlı olarak faz değiştiren malzemenin yıllık toplam enerji tasarrufu 10.349,50-83.345,98 kJ/m2.yıl arasında bulunmuş ve yakıt tiplerine göre yıllık CO2 emisyon azalımı ise 0,672-14,284 kgCO2/m2.yıl olarak hesaplanmıştır.

Anahtar Kelimeler

• Binalarda ısıl enerji depolama
• Faz değiştiren malzeme (FDM)
• CO2 emisyon azalımı
• Bina enerji performansı

Destekleyen Kurum

Gümüşhane üniversitesi

Proje Numarası

Proje No: 21.E0117.07.01

Teşekkür

Bu çalışmaya finansal katkılarından dolayı Gümüşhane Üniversitesi, Bilimsel Araştırma Projeleri Koordinatörlüğüne teşekkür ederiz.

Effect of thickness and melting temperature of phase change material integrated into exterior wall on building energy performance and CO2 emission reduction

Öz

In the study, the effect of phase change materials integrated into the building's exterior wall has been investigated in terms of material type, thickness, and melting temperature of phase change material on the building energy performance. A villa residential project has been modelled in 3D using DesignBuilder energy simulation software and two different external wall configurations have been designed by changing the position, thickness and melting temperature of the PCMs into the wall. The amount of CO2 emission reductions that PCMs will provide according to the fuel type of the building's heating system has been calculated. Using PCMs in the exterior wall not only provides high heating and cooling energy savings but also increases thermal comfort indoors by reducing temperature fluctuations. The PCM melting temperature of 23°C performs quite well compared to other temperatures in both cooling energy and heating energy demand reduction. By increasing the thickness of the PCM, 18.81% in heating energy and 22.85% in cooling energy savings can be achieved. Depending on the exterior wall and phase change material types, different thicknesses and melting temperatures of PCM, annual total energy saving of the phase-change material is calculated between 10,349.50-83.345.98 kJ/m2.year and the annual CO2 emission reduction according to fuel types has been found as 0.672-14,284 kgCO2/m2.year.

Anahtar Kelimeler

• Binalarda ısıl enerji depolama
• Faz değiştiren malzeme (FDM)
• CO2 emisyon azalımı

Proje Numarası

Proje No: 21.E0117.07.01

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