TY - JOUR
TI - Numerical simulation of non-conventional liquid fuels feeding in a bubbling fluidized bed combustor
AU - Mladenović Milica R
AU - Nemoda Stevan Đ
AU - Komatina Mirko S
AU - Dakić Dragoljub V
JN - Thermal Science
PY - 2013
VL - 17
IS - 4
SP - 1163
EP - 1179
PT - Article
AB - The paper deals with the development of mathematical models for detailed  simulation of lateral jet penetration into the fluidized bed (FB), primarily  from the aspect of feeding of gaseous and liquid fuels into FB furnaces. For  that purpose a series of comparisons has been performed between the results  of in-house developed procedure- fluid-porous medium numerical simulation of  gaseous jet penetration into the fluidized bed, Fluent’s two-fluid  Euler-Euler FB simulation model, and experimental results (from the  literature) of gaseous jet penetration into the 2D FB. The calculation  results, using both models, and experimental data are in good agreement. The  developed simulation procedures of jet penetration into the FB are applied to  the analysis of the effects, which are registered during the experiments on a  fluidized pilot furnace with feeding of liquid waste fuels into the bed, and  brief description of the experiments is also presented in the paper.  Registered effect suggests that the water in the fuel improved mixing of fuel  and oxidizer in the FB furnace, by increasing jet penetration into the FB due  to sudden evaporation of water at the entry into the furnace. In order to  clarify this effect, numerical simulations of jet penetration into the FB  with three-phase systems: gas (fuel, oxidizer, and water vapour), bed  particles and water, have been carried out. [Projekat Ministarstva nauke  Republike Srbije, br. TR33042: Improvement of the industrial fluidized bed  facility, in scope of technology for energy efficient and environmentally  feasible combustion of various waste materials in the fluidized bed]