Garić-Grulović, Radmila V.

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  • Garić-Grulović, Radmila V. (2)
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Heat transfer by liquid convection in particulate fluidized beds

Jaćimovski, Darko R.; Brzić, Danica V.; Garić-Grulović, Radmila V.; Pjanović, Rada V.; Đuriš, Mihal M.; Arsenijević, Zorana L.J.; Bošković-Vragolović, Nevenka M.

(Serbian Chemical Society, 2022)

TY  - JOUR
AU  - Jaćimovski, Darko R.
AU  - Brzić, Danica V.
AU  - Garić-Grulović, Radmila V.
AU  - Pjanović, Rada V.
AU  - Đuriš, Mihal M.
AU  - Arsenijević, Zorana L.J.
AU  - Bošković-Vragolović, Nevenka M.
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5231
AB  - In this work the theoretical model for heat transfer from a wall to a liquid-solid fluidized bed by liquid convective mechanism has been proposed and developed. The model is based on thickness of boundary layer and film theory. The key parameter in the model is the distance between two adjacent particles which collide with the wall. According to the proposed model, the liquid convective heat transfer in a fluidized bed is 4 to 5 times more intense than in a single-phase flow. Additionally, the wall-to-bed heat transfer coefficient has been measured experimentally in water–glass particles fluidized bed, for different particle sizes. Comparison of the model prediction with experimental data has shown that size of the particles strongly influences the mechanism of heat transfer. For fine particles of 0.8 mm in diameter, the liquid convective heat transfer model represents adequately the experimental data, indicating that particle convective mechanism is negligible. For coarse particles of 1.5–2 mm in diameter, the liquid convective heat transfer mechanism accounts for 60 % of the overall heat transfer coefficient.
PB  - Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - Heat transfer by liquid convection in particulate fluidized beds
T1  - ПРЕНОС ТОПЛОТЕ КОНВЕКТИВНИМ МЕХАНИЗМОМ У ПАРТИКУЛАТИВНО ФЛУИДИЗОВАНОМ СЛОЈУ
EP  - 924
IS  - 7-8
SP  - 911
VL  - 87
DO  - 10.2298/JSC211216020J
ER  - 
@article{
author = "Jaćimovski, Darko R. and Brzić, Danica V. and Garić-Grulović, Radmila V. and Pjanović, Rada V. and Đuriš, Mihal M. and Arsenijević, Zorana L.J. and Bošković-Vragolović, Nevenka M.",
year = "2022",
abstract = "In this work the theoretical model for heat transfer from a wall to a liquid-solid fluidized bed by liquid convective mechanism has been proposed and developed. The model is based on thickness of boundary layer and film theory. The key parameter in the model is the distance between two adjacent particles which collide with the wall. According to the proposed model, the liquid convective heat transfer in a fluidized bed is 4 to 5 times more intense than in a single-phase flow. Additionally, the wall-to-bed heat transfer coefficient has been measured experimentally in water–glass particles fluidized bed, for different particle sizes. Comparison of the model prediction with experimental data has shown that size of the particles strongly influences the mechanism of heat transfer. For fine particles of 0.8 mm in diameter, the liquid convective heat transfer model represents adequately the experimental data, indicating that particle convective mechanism is negligible. For coarse particles of 1.5–2 mm in diameter, the liquid convective heat transfer mechanism accounts for 60 % of the overall heat transfer coefficient.",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "Heat transfer by liquid convection in particulate fluidized beds, ПРЕНОС ТОПЛОТЕ КОНВЕКТИВНИМ МЕХАНИЗМОМ У ПАРТИКУЛАТИВНО ФЛУИДИЗОВАНОМ СЛОЈУ",
pages = "924-911",
number = "7-8",
volume = "87",
doi = "10.2298/JSC211216020J"
}
Jaćimovski, D. R., Brzić, D. V., Garić-Grulović, R. V., Pjanović, R. V., Đuriš, M. M., Arsenijević, Z. L.J.,& Bošković-Vragolović, N. M.. (2022). Heat transfer by liquid convection in particulate fluidized beds. in Journal of the Serbian Chemical Society
Serbian Chemical Society., 87(7-8), 911-924.
https://doi.org/10.2298/JSC211216020J
Jaćimovski DR, Brzić DV, Garić-Grulović RV, Pjanović RV, Đuriš MM, Arsenijević ZL, Bošković-Vragolović NM. Heat transfer by liquid convection in particulate fluidized beds. in Journal of the Serbian Chemical Society. 2022;87(7-8):911-924.
doi:10.2298/JSC211216020J .
Jaćimovski, Darko R., Brzić, Danica V., Garić-Grulović, Radmila V., Pjanović, Rada V., Đuriš, Mihal M., Arsenijević, Zorana L.J., Bošković-Vragolović, Nevenka M., "Heat transfer by liquid convection in particulate fluidized beds" in Journal of the Serbian Chemical Society, 87, no. 7-8 (2022):911-924,
https://doi.org/10.2298/JSC211216020J . .

Drying of suspensions in the draft tube spouted bed

Arsenijević, Zorana Lj.; Grbavčić, Željko B.; Garić-Grulović, Radmila V.

(Canadian Society for Chemical Engineering, 2004)

TY  - JOUR
AU  - Arsenijević, Zorana Lj.
AU  - Grbavčić, Željko B.
AU  - Garić-Grulović, Radmila V.
PY  - 2004
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5418
AB  - A draft tube spouted bed dryer with inert particles was used for drying suspensions. The effects of the operating conditions on dryer throughput and product quality were investigated. Experiments were performed in a cylindrical column 215 mm in diameter with a draft tube 70 mm in diameter and 900 mm in length. The bed was made of polyethylene particles, 3.3 mm in diameter with a density of 921 kg/m3. The fungicide Zineb, calcium carbonate, calcium stearate and pure water were used as feeding materials. A drying model using the continuity and momentum equations for turbulent accelerating two-phase flows and conventional rate equations is proposed and discussed. The work is relevant for estimating dryer performance.
AB  - On a utilisé un séchoir à lit jaillissant muni d’un tube d’aspiration avec des particules inertes pour le séchage des suspensions. L’effet des conditions opératoires sur la capacité du séchoir et la qualité du produit ont été étudiés.  Les  expériences  ont  été  effectuées  dans  une colonne  cylindrique  de  215  mm  de  diamètre  munie d’un  tube  d’aspiration  de  70  mm  de  diamètre  et 900 mm de long. Le lit se compose de particules de polyéthylène de 3,3 mm de diamètre et d’une masse volumique de 921 kg/m3. On a utilisé comme matéri-aux d’alimentation le fongicide Zineb, du carbonate de calcium, du stéarate de calcium et de l’eau pure. On propose et analyse un modèle de séchage basé sur les équations de continuité et de quantité de mouvement de l’écoulement diphasique accélérant turbulent et les équations cinétiques classiques. Ce travail est pertinent pour l’estimation de la performance des séchoirs.
PB  - Canadian Society for Chemical Engineering
T2  - Canadian Journal of Chemical Engineering
T1  - Drying of suspensions in the draft tube spouted bed
EP  - 464
IS  - 3
SP  - 450
VL  - 82
DO  - 10.1002/cjce.5450820305
ER  - 
@article{
author = "Arsenijević, Zorana Lj. and Grbavčić, Željko B. and Garić-Grulović, Radmila V.",
year = "2004",
abstract = "A draft tube spouted bed dryer with inert particles was used for drying suspensions. The effects of the operating conditions on dryer throughput and product quality were investigated. Experiments were performed in a cylindrical column 215 mm in diameter with a draft tube 70 mm in diameter and 900 mm in length. The bed was made of polyethylene particles, 3.3 mm in diameter with a density of 921 kg/m3. The fungicide Zineb, calcium carbonate, calcium stearate and pure water were used as feeding materials. A drying model using the continuity and momentum equations for turbulent accelerating two-phase flows and conventional rate equations is proposed and discussed. The work is relevant for estimating dryer performance., On a utilisé un séchoir à lit jaillissant muni d’un tube d’aspiration avec des particules inertes pour le séchage des suspensions. L’effet des conditions opératoires sur la capacité du séchoir et la qualité du produit ont été étudiés.  Les  expériences  ont  été  effectuées  dans  une colonne  cylindrique  de  215  mm  de  diamètre  munie d’un  tube  d’aspiration  de  70  mm  de  diamètre  et 900 mm de long. Le lit se compose de particules de polyéthylène de 3,3 mm de diamètre et d’une masse volumique de 921 kg/m3. On a utilisé comme matéri-aux d’alimentation le fongicide Zineb, du carbonate de calcium, du stéarate de calcium et de l’eau pure. On propose et analyse un modèle de séchage basé sur les équations de continuité et de quantité de mouvement de l’écoulement diphasique accélérant turbulent et les équations cinétiques classiques. Ce travail est pertinent pour l’estimation de la performance des séchoirs.",
publisher = "Canadian Society for Chemical Engineering",
journal = "Canadian Journal of Chemical Engineering",
title = "Drying of suspensions in the draft tube spouted bed",
pages = "464-450",
number = "3",
volume = "82",
doi = "10.1002/cjce.5450820305"
}
Arsenijević, Z. Lj., Grbavčić, Ž. B.,& Garić-Grulović, R. V.. (2004). Drying of suspensions in the draft tube spouted bed. in Canadian Journal of Chemical Engineering
Canadian Society for Chemical Engineering., 82(3), 450-464.
https://doi.org/10.1002/cjce.5450820305
Arsenijević ZL, Grbavčić ŽB, Garić-Grulović RV. Drying of suspensions in the draft tube spouted bed. in Canadian Journal of Chemical Engineering. 2004;82(3):450-464.
doi:10.1002/cjce.5450820305 .
Arsenijević, Zorana Lj., Grbavčić, Željko B., Garić-Grulović, Radmila V., "Drying of suspensions in the draft tube spouted bed" in Canadian Journal of Chemical Engineering, 82, no. 3 (2004):450-464,
https://doi.org/10.1002/cjce.5450820305 . .
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