Three phase eulerian-granular model applied on numerical simulation of non-conventional liquid fuels combustion in a bubbling fluidized bed
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The paper presents a 2-D CFD model of liquid fuel combustion in bubbling fluidized bed. The numerical procedure is based on the two-fluid Euler-Euler approach, where the velocity field of the gas and particles are modeled in analogy to the kinetic gas theory. The model is taking into account also the third liquid phase, as well as its interaction with the solid and gas phase. The proposed numerical model comprise energy equations for all three phases, as well as the transport equations of chemical components with source terms originated from the component conversion. In the frame of the proposed model, user sub-models were developed for heterogenic fluidized bed combustion of liquid fuels, with or without water. The results of the calculation were compared with experiments on a pilot-facility (power up to 100 kW), combusting, among other fuels, oil. The temperature profiles along the combustion chamber were compared for the two basic cases: combustion with or without water. On the basi...s of numerical experiments, influence of the fluid-dynamic characteristics of the fluidized bed on the combustion efficiency was analyzed, as well as the influence of the fuel characteristics (reactivity, water content) on the intensive combustion zone.
Кључне речи:
CFD model / combustion / fluidized bed / granular flow / liquid fuel / three-phase modelИзвор:
Thermal Science, 2016, 20, S133-S149Финансирање / пројекти:
DOI: 10.2298/TSCI151025196N
ISSN: 0354-9836; 2334-7163
WoS: 000378584200014
Scopus: 2-s2.0-84979870785
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Институција/група
VinčaTY - JOUR AU - Nemoda, Stevan AU - Mladenović, Milica R. AU - Paprika, Milijana AU - Erić, Aleksandar AU - Grubor, Borislav PY - 2016 UR - https://vinar.vin.bg.ac.rs/handle/123456789/1140 AB - The paper presents a 2-D CFD model of liquid fuel combustion in bubbling fluidized bed. The numerical procedure is based on the two-fluid Euler-Euler approach, where the velocity field of the gas and particles are modeled in analogy to the kinetic gas theory. The model is taking into account also the third liquid phase, as well as its interaction with the solid and gas phase. The proposed numerical model comprise energy equations for all three phases, as well as the transport equations of chemical components with source terms originated from the component conversion. In the frame of the proposed model, user sub-models were developed for heterogenic fluidized bed combustion of liquid fuels, with or without water. The results of the calculation were compared with experiments on a pilot-facility (power up to 100 kW), combusting, among other fuels, oil. The temperature profiles along the combustion chamber were compared for the two basic cases: combustion with or without water. On the basis of numerical experiments, influence of the fluid-dynamic characteristics of the fluidized bed on the combustion efficiency was analyzed, as well as the influence of the fuel characteristics (reactivity, water content) on the intensive combustion zone. T2 - Thermal Science T1 - Three phase eulerian-granular model applied on numerical simulation of non-conventional liquid fuels combustion in a bubbling fluidized bed VL - 20 SP - S133 EP - S149 DO - 10.2298/TSCI151025196N ER -
@article{ author = "Nemoda, Stevan and Mladenović, Milica R. and Paprika, Milijana and Erić, Aleksandar and Grubor, Borislav", year = "2016", abstract = "The paper presents a 2-D CFD model of liquid fuel combustion in bubbling fluidized bed. The numerical procedure is based on the two-fluid Euler-Euler approach, where the velocity field of the gas and particles are modeled in analogy to the kinetic gas theory. The model is taking into account also the third liquid phase, as well as its interaction with the solid and gas phase. The proposed numerical model comprise energy equations for all three phases, as well as the transport equations of chemical components with source terms originated from the component conversion. In the frame of the proposed model, user sub-models were developed for heterogenic fluidized bed combustion of liquid fuels, with or without water. The results of the calculation were compared with experiments on a pilot-facility (power up to 100 kW), combusting, among other fuels, oil. The temperature profiles along the combustion chamber were compared for the two basic cases: combustion with or without water. On the basis of numerical experiments, influence of the fluid-dynamic characteristics of the fluidized bed on the combustion efficiency was analyzed, as well as the influence of the fuel characteristics (reactivity, water content) on the intensive combustion zone.", journal = "Thermal Science", title = "Three phase eulerian-granular model applied on numerical simulation of non-conventional liquid fuels combustion in a bubbling fluidized bed", volume = "20", pages = "S133-S149", doi = "10.2298/TSCI151025196N" }
Nemoda, S., Mladenović, M. R., Paprika, M., Erić, A.,& Grubor, B.. (2016). Three phase eulerian-granular model applied on numerical simulation of non-conventional liquid fuels combustion in a bubbling fluidized bed. in Thermal Science, 20, S133-S149. https://doi.org/10.2298/TSCI151025196N
Nemoda S, Mladenović MR, Paprika M, Erić A, Grubor B. Three phase eulerian-granular model applied on numerical simulation of non-conventional liquid fuels combustion in a bubbling fluidized bed. in Thermal Science. 2016;20:S133-S149. doi:10.2298/TSCI151025196N .
Nemoda, Stevan, Mladenović, Milica R., Paprika, Milijana, Erić, Aleksandar, Grubor, Borislav, "Three phase eulerian-granular model applied on numerical simulation of non-conventional liquid fuels combustion in a bubbling fluidized bed" in Thermal Science, 20 (2016):S133-S149, https://doi.org/10.2298/TSCI151025196N . .