Journal of the Serbian Chemical Society 2015 Volume 80, Issue 3, Pages: 377-389
https://doi.org/10.2298/JSC140130029N
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Cited by
Euler-Euler granular flow model of liquid fuels combustion in a fluidized reactor
Nemoda Stevan (”Vinča” Institute of Nuclear Sciences, Belgrade)
Mladenović Milica (”Vinča” Institute of Nuclear Sciences, Belgrade)
Paprika Milijana (”Vinča” Institute of Nuclear Sciences, Belgrade)
Dakić Dragoljub (Faculty of Mechanical Engineering, Innovation Center, Belgrade)
Erić Aleksandar (”Vinča” Institute of Nuclear Sciences, Belgrade)
Komatina Mirko (Faculty of Mechanical Engineering, Belgrade)
The paper deals with the numerical simulation of liquid fuel combustion in a
fluidized reactor using a two-fluid Eulerian-Eulerian fluidized bed modeling
incorporating the kinetic theory of granular flow (KTGF) to gas and solid
phase flow prediction. The comprehensive model of the complex processes in
fluidized combustion chamber incorporates, besides gas and particular phase
velocity fields’ prediction, also the energy equations for gas and solid
phase and the transport equations of chemical species conservation with the
source terms due to the conversion of chemical components. Numerical
experiments show that the coefficients in the model of inter-phase
interaction drag force have a significant effect, and they have to be
adjusted for each regime of fluidization. A series of numerical experiments
was performed with combustion of the liquid fuels in fluidized bed (FB), with
and without significant water content. The given estimations are related to
the unsteady state, and the modeled time period corresponds to flow passing
time throw reactor column. The numerical experiments were conducted to
examine the impact of the water content in a liquid fuel on global FB
combustion kinetics.
Keywords: CFD model, combustion, fluidized bed, two-fluid model, non-conventional fuel