Energy Production From Flue Gas of Sinter Plant Circular Coolers

Year 2024, Volume: 17 Issue: 2, 426 - 444, 31.08.2024

Tuba Nur Akçali , Yıldız Koç , Özkan Köse

https://doi.org/10.18185/erzifbed.1465583

Abstract

Bu çalışmada karbon emisyonlarının kritik seviyelere ulaşması ve fosil yakıt kaynaklarının azalması nedeniyle sinter tesisinde enerji yoğun sistemlerin dairesel soğutucularından atmosfere salınan atık ısının çevre dostu geri kazanım teknolojilerinden faydalanılması amaçlanmaktadır. Sinter tesisi enerji atık ısısının geri kazanımı için organik Rankine çevrimi (ORC) seçilmiştir. Çalışma kapsamındaki kütle akış hızları, brüt güç, pompanın güç tüketimi ve net güç çıkışını içeren performans metrikleri, bir yıl boyunca egzoz gazındaki değişimler dikkate alınarak değerlendirilmektedir. Sistemin enerji ve ekserji analizleri yapılarak her ay için maksimum performans değerleri belirlendi. Bu, 7,5 bar ile 36 bar arasında değişen basınçlar arasında çalışan, ORC içerisinde organik sıvı olarak R123 kullanılarak elde edildi. Sonuç olarak en yüksek net güce ağustos ayında ulaşılmış ve ekserji verimi %63 olarak belirlenmiştir. Atık enerjinin geri dönüşümü, sinter soğutucu sistem fanlarının elektrik tüketimini karşılamanın yanı sıra, geriye %62 oranında elektrik enerji fazlası bırakılmaktadır. Ayrıca bu değer tüm sinter tesisinin yıllık enerji ihtiyacının yaklaşık %18,3'üne karşılık gelmektedir.

Keywords

Sinter, waste heat, organic Rankine cycle, energy

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