TERMOGRAVİMETRIK ANALİZ İLE FARKLI KÖMÜRLERİN YANMA PROSESİNİN İNCELENMESİ

Jale Naktiyok; Abdulkadir Özer

doi:10.17780/ksujes.1159136

TERMOGRAVİMETRIK ANALİZ İLE FARKLI KÖMÜRLERİN YANMA PROSESİNİN İNCELENMESİ

Öz

Bu çalışmada üç farklı kömürün hava atmosferinde yanma prosesleri termal analiz (TG-DTG/DSC) cihazı ile incelendi. Termogravimetrik analiz deneyleri için 25°C’den 1000°C’ye kadar hava atmosferinde 10°C/dak ısıtma hızında çalışıldı. TG-DTG/DSC verilerinden faydalanarak örneklerin hem ana yanma bölgesi için gerekli olan aktivasyon enerjileri hesaplandı, hem de kendiliğinden ısınma sıcaklıkları belirlendi. Yanma kinetiği için modele bağlı (model fitting) metotlardan olan Ortega metodu uygulandı. Buna göre EK kömürünün ana yanma bölgesine ait olan aktivasyon enerjisi 69.49 kJ/mol, TK kömürünün 86.77 kJ/mol ve YK kömürünün ise 77.34 kJ/mol’ dür. TK ve EK linyitlerinin kendiliğinden ısınma sıcaklıklarının oldukça düşük, YK kömürünün ise oldukça yüksek olduğu belirlendi. EK kömürünün düşük karbon, yüksek kül içeriğinden dolayı diğer kömürlere göre daha düşük tutuşma ve yanma sıcaklıklarına sahip iken YK kömürünün yüksek karbon ve düşük kül içeriğinden dolayı yüksek tutuşma ve yanma sıcaklıklarına sahip olduğu anlaşıldı.

Anahtar Kelimeler

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Details

Primary Language

Turkish

Subjects

Engineering

Journal Section

Research Article

Authors

Jale Naktiyok ^*
0000-0002-6316-4112
Türkiye

Abdulkadir Özer
0000-0002-0487-3680
Türkiye

Publication Date

December 3, 2022

Submission Date

August 8, 2022

Acceptance Date

August 24, 2022

Published in Issue

Year 2022 Volume: 25 Number: 4

DOI

https://doi.org/10.17780/ksujes.1159136

IZ

https://izlik.org/JA32MM59AM

Cite

RIS / Bibtex

APA

Naktiyok, J., & Özer, A. (2022). TERMOGRAVİMETRIK ANALİZ İLE FARKLI KÖMÜRLERİN YANMA PROSESİNİN İNCELENMESİ. Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi, 25(4), 691-701. https://doi.org/10.17780/ksujes.1159136

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