Biyo-kökenli organik faz değişim malzemeleri ile emprenye edilen odun örneklerinin enerji depolama özelliklerinin incelenmesi

Öz

Bu çalışma, yenilenebilir biyomalzemelerin sürdürülebilir yapı malzemeleri olarak kullanımını artırmak amacıyla, organik faz değişim malzemeleri (FDM) ile emprenye edilen kavak odununun enerji depolama özelliklerini incelemektedir. Çalışmada faz değişim malzemesi olarak hindistan cevizi yağı (HC) ve laurik asit (LA) kullanılmış, farklı oranlarda karışımlar oluşturularak emprenye işlemi gerçekleştirilmiştir. Hazırlanan örnekler, vakum ve atmosferik basınç koşullarında emprenye edilmiş ve ağırlık artışları hesaplanmıştır. Emprenye edilen örneklerin kimyasal, termal ve fiziksel özellikleri FTIR, DSC, XRD ve TGA analiz yöntemleriyle karakterize edilmiştir. HC ile emprenye edilen örneklerde %162,97 ile en yüksek ağırlık artışı elde edilmiştir. FTIR analizleri, emprenye işleminin kimyasal bir değişim yaratmadığını, yalnızca fiziksel bir etkileşim gerçekleştiğini ortaya koymuştur. DSC analizlerinde, LA ve HC karışımının (FDM4) erime ve donma sıcaklıklarını optimize ettiği ve enerji depolama kapasitesini artırdığı belirlenmiştir. TGA sonuçları, HC'nin termal dayanıklılık açısından daha iyi performans gösterdiğini ortaya koymuştur. FDM’ler ile emprenye edilen odun örneklerinin enerji depolama özelliklerinin geliştirildiği ve bu yöntemle çevre dostu, enerji verimli yapı malzemelerinin üretimine olanak sağlandığı görülmüştür.

Anahtar Kelimeler

• Enerji depolama
• hindistan cevizi yağı
• kavak
• laurik asit

Investigation of energy storage properties of wood samples impreg-nated with bio-based organic phase change materials

Abstract

This study investigates the energy storage properties of poplar wood impregnated with organic phase change materials (PCMs) to enhance the use of renewable biomaterials as sustainable construction materials. Coconut oil (HC) and lauric acid (LA) were used as phase change materials, and different ratios of mixtures were prepared for impregnation. The prepared samples were impregnated under vacuum and atmospheric pressure conditions, and weight gain was calculated. The chemical, thermal, and physical properties of the impregnated samples were characterized using FTIR, DSC, XRD, and TGA analysis methods. The results showed that the highest weight gain, 162.97%, was obtained in samples impregnated with HC. FTIR analyses revealed that the impregnation process caused no chemical changes, but only physical interactions. DSC analyses showed that the LA and HC mixture (FDM4) optimized melting and freezing temperatures, enhancing energy storage capacity. TGA results demonstrated that HC exhibited better thermal stability compared to other materials. The findings indicate that the energy storage properties of wood samples impregnated with PCMs have been significantly improved, enabling the production of eco-friendly, energy-efficient construction materials.

Keywords

• Energy storage
• coconut oil
• poplar
• lauric acid
• organic phase change material

Kaynakça

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