Numerical simulation of non-conventional liquid fuels feeding in a bubbling fluidized bed combustor
Apstrakt
The paper deals with the development of mathematical models for detailed simulation of lateral jet penetration into the fluidized bed, primarily from the aspect of feeding of gaseous and liquid fuels into fluidized bed 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 fluidized bed simulation model, and experimental results (from the literature) of gaseous jet penetration into the 2-D fluidized bed. The calculation results, using both models, and experimental data are in good agreement. The developed simulation procedures of jet penetration into the fluidized bed 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 pa...per. Registered effect suggests that the water in the fuel improved mixing of fuel and oxidizer in the fluidized bed furnace, by increasing jet penetration into the fluidized bed 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 fluidized bed with three-phase systems: gas (fuel, oxidizer, and water vapour), bed particles and water, have been carried out.
Ključne reči:
two-fluid Euler-Euler model / numerical simulation / jet penetration / fluidized bedIzvor:
Thermal Science, 2013, 17, 4, 1163-1179Izdavač:
- Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd
Finansiranje / projekti:
- Unapređenje industrijskog postrojenja sa fluidizovanim slojem u okviru razvoja tehnologije za energetski efikasno i ekološki opravdano sagorevanje različitih otpadnih materija u fluidizacionom ložištu (RS-MESTD-Technological Development (TD or TR)-33042)
DOI: 10.2298/TSCI121116007M
ISSN: 0354-9836
WoS: 000327165200019
Scopus: 2-s2.0-84890452403
Kolekcije
Institucija/grupa
Mašinski fakultetTY - JOUR AU - Mladenović, Milica R. AU - Nemoda, Stevan AU - Komatina, Mirko AU - Dakić, Dragoljub PY - 2013 UR - https://machinery.mas.bg.ac.rs/handle/123456789/1712 AB - The paper deals with the development of mathematical models for detailed simulation of lateral jet penetration into the fluidized bed, primarily from the aspect of feeding of gaseous and liquid fuels into fluidized bed 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 fluidized bed simulation model, and experimental results (from the literature) of gaseous jet penetration into the 2-D fluidized bed. The calculation results, using both models, and experimental data are in good agreement. The developed simulation procedures of jet penetration into the fluidized bed 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 fluidized bed furnace, by increasing jet penetration into the fluidized bed 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 fluidized bed with three-phase systems: gas (fuel, oxidizer, and water vapour), bed particles and water, have been carried out. PB - Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd T2 - Thermal Science T1 - Numerical simulation of non-conventional liquid fuels feeding in a bubbling fluidized bed combustor EP - 1179 IS - 4 SP - 1163 VL - 17 DO - 10.2298/TSCI121116007M ER -
@article{ author = "Mladenović, Milica R. and Nemoda, Stevan and Komatina, Mirko and Dakić, Dragoljub", year = "2013", abstract = "The paper deals with the development of mathematical models for detailed simulation of lateral jet penetration into the fluidized bed, primarily from the aspect of feeding of gaseous and liquid fuels into fluidized bed 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 fluidized bed simulation model, and experimental results (from the literature) of gaseous jet penetration into the 2-D fluidized bed. The calculation results, using both models, and experimental data are in good agreement. The developed simulation procedures of jet penetration into the fluidized bed 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 fluidized bed furnace, by increasing jet penetration into the fluidized bed 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 fluidized bed with three-phase systems: gas (fuel, oxidizer, and water vapour), bed particles and water, have been carried out.", publisher = "Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd", journal = "Thermal Science", title = "Numerical simulation of non-conventional liquid fuels feeding in a bubbling fluidized bed combustor", pages = "1179-1163", number = "4", volume = "17", doi = "10.2298/TSCI121116007M" }
Mladenović, M. R., Nemoda, S., Komatina, M.,& Dakić, D.. (2013). Numerical simulation of non-conventional liquid fuels feeding in a bubbling fluidized bed combustor. in Thermal Science Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd., 17(4), 1163-1179. https://doi.org/10.2298/TSCI121116007M
Mladenović MR, Nemoda S, Komatina M, Dakić D. Numerical simulation of non-conventional liquid fuels feeding in a bubbling fluidized bed combustor. in Thermal Science. 2013;17(4):1163-1179. doi:10.2298/TSCI121116007M .
Mladenović, Milica R., Nemoda, Stevan, Komatina, Mirko, Dakić, Dragoljub, "Numerical simulation of non-conventional liquid fuels feeding in a bubbling fluidized bed combustor" in Thermal Science, 17, no. 4 (2013):1163-1179, https://doi.org/10.2298/TSCI121116007M . .