Temperatures of coal particle during devolatilization in fluidized bed combustion reactor
Само за регистроване кориснике
2006
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
The purpose of this study was to investigate the thermal behavior of coal during devolatilization in fluidized bed. Temperatures in the center of single coal particle were measured by thermocouple. Two coals were tested ( brown coal Bogovina and lignite Kosovo), using dry coal particle, shaped into spherical form of diameters 7 and 10 mm, in temperature range from 300 to 850 degrees C. Unsteady behavior of coal particle during heating and devolatilization in fluidized bed was described by a model that takes into account heat transfer between bed and particle surface, heat transfer through particle and an endothermic chemical reaction of first-order. Based on the mathematical model analysis and compared with experimental results, values of heat conductivity (lambda(C)) and heat capacity (C-p) of coal were determined. The best agreement was obtained for constant thermal properties, for brown coal lambda(C) = 0.20 W/mK and C-p = 1200 J/kgK and for lignite lambda(C) = 0.17 W/mK and C-p = 1...100 J/kgK.
Кључне речи:
temperature / single particle / fluidized bed / coal devolatilizationИзвор:
Energy Sources Part A-Recovery Utilization and Environmental Effects, 2006, 28, 15, 1387-1396Издавач:
- Taylor & Francis Inc, Philadelphia
DOI: 10.1080/009083190910569
ISSN: 1556-7036
WoS: 000240937400004
Scopus: 2-s2.0-33749460134
Колекције
Институција/група
Mašinski fakultetTY - JOUR AU - Komatina, Mirko AU - Manović, Vasilije AU - Saljnikov, Aleksandar PY - 2006 UR - https://machinery.mas.bg.ac.rs/handle/123456789/624 AB - The purpose of this study was to investigate the thermal behavior of coal during devolatilization in fluidized bed. Temperatures in the center of single coal particle were measured by thermocouple. Two coals were tested ( brown coal Bogovina and lignite Kosovo), using dry coal particle, shaped into spherical form of diameters 7 and 10 mm, in temperature range from 300 to 850 degrees C. Unsteady behavior of coal particle during heating and devolatilization in fluidized bed was described by a model that takes into account heat transfer between bed and particle surface, heat transfer through particle and an endothermic chemical reaction of first-order. Based on the mathematical model analysis and compared with experimental results, values of heat conductivity (lambda(C)) and heat capacity (C-p) of coal were determined. The best agreement was obtained for constant thermal properties, for brown coal lambda(C) = 0.20 W/mK and C-p = 1200 J/kgK and for lignite lambda(C) = 0.17 W/mK and C-p = 1100 J/kgK. PB - Taylor & Francis Inc, Philadelphia T2 - Energy Sources Part A-Recovery Utilization and Environmental Effects T1 - Temperatures of coal particle during devolatilization in fluidized bed combustion reactor EP - 1396 IS - 15 SP - 1387 VL - 28 DO - 10.1080/009083190910569 ER -
@article{ author = "Komatina, Mirko and Manović, Vasilije and Saljnikov, Aleksandar", year = "2006", abstract = "The purpose of this study was to investigate the thermal behavior of coal during devolatilization in fluidized bed. Temperatures in the center of single coal particle were measured by thermocouple. Two coals were tested ( brown coal Bogovina and lignite Kosovo), using dry coal particle, shaped into spherical form of diameters 7 and 10 mm, in temperature range from 300 to 850 degrees C. Unsteady behavior of coal particle during heating and devolatilization in fluidized bed was described by a model that takes into account heat transfer between bed and particle surface, heat transfer through particle and an endothermic chemical reaction of first-order. Based on the mathematical model analysis and compared with experimental results, values of heat conductivity (lambda(C)) and heat capacity (C-p) of coal were determined. The best agreement was obtained for constant thermal properties, for brown coal lambda(C) = 0.20 W/mK and C-p = 1200 J/kgK and for lignite lambda(C) = 0.17 W/mK and C-p = 1100 J/kgK.", publisher = "Taylor & Francis Inc, Philadelphia", journal = "Energy Sources Part A-Recovery Utilization and Environmental Effects", title = "Temperatures of coal particle during devolatilization in fluidized bed combustion reactor", pages = "1396-1387", number = "15", volume = "28", doi = "10.1080/009083190910569" }
Komatina, M., Manović, V.,& Saljnikov, A.. (2006). Temperatures of coal particle during devolatilization in fluidized bed combustion reactor. in Energy Sources Part A-Recovery Utilization and Environmental Effects Taylor & Francis Inc, Philadelphia., 28(15), 1387-1396. https://doi.org/10.1080/009083190910569
Komatina M, Manović V, Saljnikov A. Temperatures of coal particle during devolatilization in fluidized bed combustion reactor. in Energy Sources Part A-Recovery Utilization and Environmental Effects. 2006;28(15):1387-1396. doi:10.1080/009083190910569 .
Komatina, Mirko, Manović, Vasilije, Saljnikov, Aleksandar, "Temperatures of coal particle during devolatilization in fluidized bed combustion reactor" in Energy Sources Part A-Recovery Utilization and Environmental Effects, 28, no. 15 (2006):1387-1396, https://doi.org/10.1080/009083190910569 . .