Prediction of Coal Primary Fragmentation and Char Particle Size Distribution in Fluidized Bed
Апстракт
The combination of temperature gradient and volatile release has been identified as the main cause for primary fragmentation (breakage of fuel particles during devolatilization). A mathematical model of the primary fragmentation in a fluidized bed has been developed, incorporating both causes. It takes into account the type of the coal, size of the coal particles, and the fluidized bed temperature. The model simulates fragmentation of a batch of coal particles. For each particle in the batch, the model follows propagation and merging of cracks, starting from randomly distributed pre-existing pores, leading to possible breakage of the particle. The model calculates volume of the fragmented particles and volume diameters, classifying them into size classes. For each size class, the number of particles is counted, and the mass fraction is calculated. The results are the distribution of mass and number of char particles after the devolatilization and the primary fragmentation parameters.
Извор:
Energy and Fuels, 2013, 27, 9, 5488-5494Финансирање / пројекти:
- Унапређење индустријског постројења са флуидизованим слојем у оквиру развоја технологије за енергетски ефикасно и еколошки оправдано сагоревање различитих отпадних материја у флуидизационом ложишту (RS-MESTD-Technological Development (TD or TR)-33042)
DOI: 10.1021/ef400875q
ISSN: 0887-0624; 1520-5029
WoS: 000330100000051
Scopus: 2-s2.0-84884524398
Колекције
Институција/група
VinčaTY - JOUR AU - Paprika, Milijana AU - Komatina, Mirko S. AU - Dakić, Dragoljub V. AU - Nemoda, Stevan PY - 2013 UR - https://vinar.vin.bg.ac.rs/handle/123456789/5848 AB - The combination of temperature gradient and volatile release has been identified as the main cause for primary fragmentation (breakage of fuel particles during devolatilization). A mathematical model of the primary fragmentation in a fluidized bed has been developed, incorporating both causes. It takes into account the type of the coal, size of the coal particles, and the fluidized bed temperature. The model simulates fragmentation of a batch of coal particles. For each particle in the batch, the model follows propagation and merging of cracks, starting from randomly distributed pre-existing pores, leading to possible breakage of the particle. The model calculates volume of the fragmented particles and volume diameters, classifying them into size classes. For each size class, the number of particles is counted, and the mass fraction is calculated. The results are the distribution of mass and number of char particles after the devolatilization and the primary fragmentation parameters. T2 - Energy and Fuels T1 - Prediction of Coal Primary Fragmentation and Char Particle Size Distribution in Fluidized Bed VL - 27 IS - 9 SP - 5488 EP - 5494 DO - 10.1021/ef400875q ER -
@article{ author = "Paprika, Milijana and Komatina, Mirko S. and Dakić, Dragoljub V. and Nemoda, Stevan", year = "2013", abstract = "The combination of temperature gradient and volatile release has been identified as the main cause for primary fragmentation (breakage of fuel particles during devolatilization). A mathematical model of the primary fragmentation in a fluidized bed has been developed, incorporating both causes. It takes into account the type of the coal, size of the coal particles, and the fluidized bed temperature. The model simulates fragmentation of a batch of coal particles. For each particle in the batch, the model follows propagation and merging of cracks, starting from randomly distributed pre-existing pores, leading to possible breakage of the particle. The model calculates volume of the fragmented particles and volume diameters, classifying them into size classes. For each size class, the number of particles is counted, and the mass fraction is calculated. The results are the distribution of mass and number of char particles after the devolatilization and the primary fragmentation parameters.", journal = "Energy and Fuels", title = "Prediction of Coal Primary Fragmentation and Char Particle Size Distribution in Fluidized Bed", volume = "27", number = "9", pages = "5488-5494", doi = "10.1021/ef400875q" }
Paprika, M., Komatina, M. S., Dakić, D. V.,& Nemoda, S.. (2013). Prediction of Coal Primary Fragmentation and Char Particle Size Distribution in Fluidized Bed. in Energy and Fuels, 27(9), 5488-5494. https://doi.org/10.1021/ef400875q
Paprika M, Komatina MS, Dakić DV, Nemoda S. Prediction of Coal Primary Fragmentation and Char Particle Size Distribution in Fluidized Bed. in Energy and Fuels. 2013;27(9):5488-5494. doi:10.1021/ef400875q .
Paprika, Milijana, Komatina, Mirko S., Dakić, Dragoljub V., Nemoda, Stevan, "Prediction of Coal Primary Fragmentation and Char Particle Size Distribution in Fluidized Bed" in Energy and Fuels, 27, no. 9 (2013):5488-5494, https://doi.org/10.1021/ef400875q . .