Çevre Sıcaklığının Dolaşımlı Akışkan Yataklı Kazanın Ekserji Performansı Üzerindeki Etkisi

Yıl 2019, Cilt: 6 Sayı: 2, 477 - 490, 26.12.2019

Mesut Yazıcı , Ramazan Köse

https://doi.org/10.35193/bseufbd.629904

Cited By: 2

Öz

Sunulan bu çalışmada, Eskişehir’in
Seyitgazi ilçesinde yer alan bir endüstriyel tesisteki 75 t/h buhar kapasiteli
dolaşımlı akışkan yataklı kazanın konvansiyonel ekserji analizi yapılmıştır.
Yapılan analizde; çevre sıcaklığındaki değişimin, kazan ve hava ısıtıcısının
ekserji performansına olan etkisi irdelenmiştir. Bunun için standart ölü hal
koşulu 25℃, 101,325 kPa ve ölçüm değerlerinin ortalaması olarak 17,27℃, 89,4
kPa’ın yanı sıra 30℃, 28℃, 20℃, 15℃ ve 12℃ için hesaplamalar yapılmıştır.
Dolaşımlı akışkan yataklı kazan bölümler halinde incelenmesinden ziyade bir
bütün olarak kabul edilmiştir. Hava ısıtıcısı ise kazandan ayrı olarak
değerlendirilmiştir. Yapılan hesaplamalar sonucunda kazan ve hava ısıtıcısında
gerçekleşen ekserji kayıpları belirlenmiştir. Ayrıca kazan ve hava ısıtıcısının
ekserji verimleri hesaplanarak ekserji performansı ortaya çıkarılmıştır. Bu
çalışma, dolaşımlı akışkan yataklı kazanın ve hava ısıtıcının ekserji performans
kriterlerinin çevre sıcaklığındaki değişimden önemli ölçüde etkilendiğini
göstermiştir.

Anahtar Kelimeler

Akışkan yataklı kazanlar, ekserji analizi, ekserji yıkımı, ekserji performansı

Kaynakça

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