Assessment of Global and Network Models of Devolatilization for Numerical Analysis of Pulverized Coal Combustion

Kapusuz E., YILMAZ B., Gokalp I.

COMBUSTION SCIENCE AND TECHNOLOGY, cilt.191, sa.3, ss.520-537, 2019 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 191 Sayı: 3
  • Basım Tarihi: 2019
  • Doi Numarası: 10.1080/00102202.2018.1505875
  • Dergi Adı: COMBUSTION SCIENCE AND TECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.520-537
  • Anahtar Kelimeler: Pulverized coal combustion, devolatilization models, pyrolysis, CFD modeling, KINETICS, HEAT
  • Marmara Üniversitesi Adresli: Evet

Özet

Mathematical modeling of devolatilization plays a significant role in the prediction of flame development in solid fuel combustion simulations. Commonly implemented devolatilization models available in the literature to simulate pulverized coal combustion are reviewed and evaluated. The effect of the particle heating rate on the onset of devolatilization and on final volatile yield is discussed. Selected devolatilization models are investigated with respect to their implementation in Computational Fluid dynamics (CFD) simulations of methane-assisted pulverized coal jet flame experiments. Differences in volatile release region, particle temperature and species concentration are presented and discussed with comparisons to the experimental data.