Application of the fractal theory for evaluating effects of coal comminution by waterjet
International Journal of Coal Science and Technology, cilt.1, sa.4, ss.450-455, 2014 (Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 1 Sayı: 4
- Basım Tarihi: 2014
- Doi Numarası: 10.1007/s40789-014-0047-9
- Dergi Adı: International Journal of Coal Science and Technology
- Derginin Tarandığı İndeksler: Scopus
- Sayfa Sayıları: ss.450-455
- Anahtar Kelimeler: Coal comminution, Fractal theory, Particle size distribution, Waterjet
- Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
- Dokuz Eylül Üniversitesi Adresli: Evet
Özet
© 2014, The Author(s).Comminution of coal to ultrafine sizes by high-pressure waterjet provides a novel method for preparation of coal-water fuels for next generation, near-zero emission electric power generation. The particle size distribution (PSD) of ground coal is a key parameter in the preparation of slurries as it determines the settling behavior of the particles and viscosity of the coal-water mixture. There are several methods available for representation and evaluation of particle size analysis data. However, fractal theory provides a means by which the entire PSD of comminuted materials can be quantified by using of a specific and exact value. In this paper, a volume-based fractal model was deduced to characterize the PSD of the coal which is ground in a specially designed comminution cell. During the size reduction process, the inlet pressures up to 276 MPa were used.