TY - JOUR T1 - Biyokütle, arıtma çamuru ve linyit içeren yakıt karışımlarının yanma karakteristiklerinin, kinetiklerinin ve yanma indekslerinin termogravimetrik olarak incelenmesi TT - Thermogravimetric investigation of combustion characteristics, kinetics and combustion index of fuel blends with biomass, sewage sludge and lignite AU - Erkent, Sena AU - Yaman, Mehmet Eren AU - Kurtuluş, Karani AU - Yurdakul, Sema AU - Gürel, Barış PY - 2025 DA - October Y2 - 2025 DO - 10.65206/pajes.00694 JF - Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi PB - Pamukkale Üniversitesi WT - DergiPark SN - 2147-5881 VL - 0 IS - 0 LA - tr AB - Bu çalışmada, gül posası (G), evsel arıtma çamuru (Ç) ve yerli Kale Linyiti (L) kullanılarak hazırlanan farklı oranlardaki yakıt karışımlarının termogravimetrik analizleri (TGA) yapılarak; yanma karakteristikleri, yanma indeksleri ve aktivasyon enerjileri incelenmiştir. Bu çalışmada üç farklı yakıt karışımı (%15Ç+%15G+%70L; %25Ç+%25G+%50L; %40Ç+%40G+%20L) hazırlanmıştır. Yakıt karışımlarının termal bozunmaları genel olarak dört bölgede gerçekleşmiştir. Bu çalışmada alev alma sıcaklıklarının karışımdaki çamur oranı arttıkça yükseldiği, son yanma sıcaklıklarında ise genel bir değişim olmadığı görülmektedir. Karışımların maksimum kütle kaybı hızları çamur oranı arttıkça artmış ve daha stabil bir yanma sağlamıştır. Yanma indeksleri açısından, linyite arıtma çamuru eklenmesinin yakıtın yanma karakteristiğini iyileştirdiği gözlemlenmiştir. Bu çalışmada hazırlanan yakıt karışımlarının aktivasyon enerjileri ise %15Ç+%15G+%70L için 86.68 kJ/mol, %25Ç+%25G+%50L için 107.20 kJ/mol, %40Ç+%40G+%20L için 114.07 kJ/mol ve %100 çamur için 160.05 kJ/mol olarak hesaplanmıştır. Dolayısıyla biyokütle ve linyitin arıtma çamurları ile termokimyasal kullanımının çevresel ve ekonomik açıdan önemli bir potansiyele sahip olduğu görülmektedir. KW - Biyokütle KW - Kinetik KW - TGA KW - Yanma Karakteristikleri N2 - In this study, the combustion characteristics, combustion index and activation energies were investigated by thermogravimetric analysis (TGA) of different proportions of fuel blends prepared using rose pulp (R), domestic sewage sludge (S) and local Kale Lignite (L). In this study, three different fuel blends (15%S+15%R+70%L; 25%S+25%R+50%L; 40%S+40%R+20%L) were prepared. Thermal degradation of the fuel blends occurred mainly in four regions. In this study, it was observed that the ignition temperatures increased with increasing sludge content in the blends, while there was no general change in the burnout combustion temperatures. The maximum mass loss rates (DTGmax) of the blends increased with increasing sludge content and provided a more stable combustion. In terms of combustion index, it was observed that the addition of sewage sludge to lignite improved the combustion characteristics of the fuel. 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