Experimental and Numerical Investigation of the Primary Fragmentation of a Lignite during Fluidized-Bed (FB) Devolatilization
Само за регистроване кориснике
2015
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
The paper presents a comparison between experimental and model results of primary fragmentation of a lignite coal in a fluidized bed (FB). In the experiments, the char particle size distribution and the general indicators of primary fragmentation (intensity and index) were determined. The same parameters were calculated using a mathematical model of the process, fed by data of the fuel (the amount of volatiles and fixed carbon), fluidized bed temperature; and inlet particle size distribution. The size distribution and number of the char particles in fluidized bed significantly differ from the size distribution and number of inlet coal particles. Char population has a bimodal distribution separate distributions for the smaller and larger sets of fragments. The experimental and model results show the same tendency: a coal particle partially breaks at the beginning of devolatilization, giving a large number of fine fragments, while, as the process continues, the rest of the parent particl...e sometimes breaks down into a smaller number of larger pieces, and sometimes does not fragment at all. Review of the Weibull distribution coefficients enables prediction of the char particle size distribution for the characteristic fluidized bed conditions and inlet coal particle sizes.
Извор:
Energy & Fuels, 2015, 29, 5, 3394-3398Издавач:
- Amer Chemical Soc, Washington
Финансирање / пројекти:
- Ministry of Education, Science and Technological Development of Serbia
DOI: 10.1021/ef5024803
ISSN: 0887-0624
WoS: 000355158200075
Scopus: 2-s2.0-84930226797
Колекције
Институција/група
Mašinski fakultetTY - JOUR AU - Paprika, Milijana J. AU - Komatina, Mirko AU - Dakić, Dragoljub AU - Živković, Goran AU - Mladenović, Milica PY - 2015 UR - https://machinery.mas.bg.ac.rs/handle/123456789/2196 AB - The paper presents a comparison between experimental and model results of primary fragmentation of a lignite coal in a fluidized bed (FB). In the experiments, the char particle size distribution and the general indicators of primary fragmentation (intensity and index) were determined. The same parameters were calculated using a mathematical model of the process, fed by data of the fuel (the amount of volatiles and fixed carbon), fluidized bed temperature; and inlet particle size distribution. The size distribution and number of the char particles in fluidized bed significantly differ from the size distribution and number of inlet coal particles. Char population has a bimodal distribution separate distributions for the smaller and larger sets of fragments. The experimental and model results show the same tendency: a coal particle partially breaks at the beginning of devolatilization, giving a large number of fine fragments, while, as the process continues, the rest of the parent particle sometimes breaks down into a smaller number of larger pieces, and sometimes does not fragment at all. Review of the Weibull distribution coefficients enables prediction of the char particle size distribution for the characteristic fluidized bed conditions and inlet coal particle sizes. PB - Amer Chemical Soc, Washington T2 - Energy & Fuels T1 - Experimental and Numerical Investigation of the Primary Fragmentation of a Lignite during Fluidized-Bed (FB) Devolatilization EP - 3398 IS - 5 SP - 3394 VL - 29 DO - 10.1021/ef5024803 ER -
@article{ author = "Paprika, Milijana J. and Komatina, Mirko and Dakić, Dragoljub and Živković, Goran and Mladenović, Milica", year = "2015", abstract = "The paper presents a comparison between experimental and model results of primary fragmentation of a lignite coal in a fluidized bed (FB). In the experiments, the char particle size distribution and the general indicators of primary fragmentation (intensity and index) were determined. The same parameters were calculated using a mathematical model of the process, fed by data of the fuel (the amount of volatiles and fixed carbon), fluidized bed temperature; and inlet particle size distribution. The size distribution and number of the char particles in fluidized bed significantly differ from the size distribution and number of inlet coal particles. Char population has a bimodal distribution separate distributions for the smaller and larger sets of fragments. The experimental and model results show the same tendency: a coal particle partially breaks at the beginning of devolatilization, giving a large number of fine fragments, while, as the process continues, the rest of the parent particle sometimes breaks down into a smaller number of larger pieces, and sometimes does not fragment at all. Review of the Weibull distribution coefficients enables prediction of the char particle size distribution for the characteristic fluidized bed conditions and inlet coal particle sizes.", publisher = "Amer Chemical Soc, Washington", journal = "Energy & Fuels", title = "Experimental and Numerical Investigation of the Primary Fragmentation of a Lignite during Fluidized-Bed (FB) Devolatilization", pages = "3398-3394", number = "5", volume = "29", doi = "10.1021/ef5024803" }
Paprika, M. J., Komatina, M., Dakić, D., Živković, G.,& Mladenović, M.. (2015). Experimental and Numerical Investigation of the Primary Fragmentation of a Lignite during Fluidized-Bed (FB) Devolatilization. in Energy & Fuels Amer Chemical Soc, Washington., 29(5), 3394-3398. https://doi.org/10.1021/ef5024803
Paprika MJ, Komatina M, Dakić D, Živković G, Mladenović M. Experimental and Numerical Investigation of the Primary Fragmentation of a Lignite during Fluidized-Bed (FB) Devolatilization. in Energy & Fuels. 2015;29(5):3394-3398. doi:10.1021/ef5024803 .
Paprika, Milijana J., Komatina, Mirko, Dakić, Dragoljub, Živković, Goran, Mladenović, Milica, "Experimental and Numerical Investigation of the Primary Fragmentation of a Lignite during Fluidized-Bed (FB) Devolatilization" in Energy & Fuels, 29, no. 5 (2015):3394-3398, https://doi.org/10.1021/ef5024803 . .