Flow regimes and liquid mixing in a draft tube gas-liquid-solid fluidized bed
Abstract
Flow behavior of gas bubbles, liquid and particles, and mixing in the liquid phase were studied in draft and annulus of a draft tube gas-liquid-solid fluidized bed. The experimental unit was a 80mm ID × 1.5 m column with an 50mm ID internal draft tube. A 2-D unit of the same size and geometry was used to assess the local concentrations and velocities of liquid, particles and air bubbles. Fluid and particle dynamics in the draft and annular regions were analyzed using the drift-flux model extended to the 3- phase flow, and in terms of the effective buoyancy of solid particles. Liquid mixing was studied based on the tracer-response technique, using the model of axial dispersion.
Keywords:
axial dispersion / Draft-tube fluidized bed / liquid and particle motion / particle buoyancy.Source:
Chemical Engineering Science, 1992, 47, 13-14, 3451-3458Publisher:
- Pergamon-Elsevier Science Ltd, Oxford
DOI: 10.1016/0009-2509(92)85057-I
ISSN: 0009-2509
PubMed:
Scopus: 2-s2.0-0026918498
Institution/Community
Tehnološko-metalurški fakultetTY - JOUR AU - Vunjak-Novaković, Gordana AU - Jovanović, G. AU - Kundaković, Lj. AU - Obradović, Bojana PY - 1992 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/39 AB - Flow behavior of gas bubbles, liquid and particles, and mixing in the liquid phase were studied in draft and annulus of a draft tube gas-liquid-solid fluidized bed. The experimental unit was a 80mm ID × 1.5 m column with an 50mm ID internal draft tube. A 2-D unit of the same size and geometry was used to assess the local concentrations and velocities of liquid, particles and air bubbles. Fluid and particle dynamics in the draft and annular regions were analyzed using the drift-flux model extended to the 3- phase flow, and in terms of the effective buoyancy of solid particles. Liquid mixing was studied based on the tracer-response technique, using the model of axial dispersion. PB - Pergamon-Elsevier Science Ltd, Oxford T2 - Chemical Engineering Science T1 - Flow regimes and liquid mixing in a draft tube gas-liquid-solid fluidized bed EP - 3458 IS - 13-14 SP - 3451 VL - 47 DO - 10.1016/0009-2509(92)85057-I ER -
@article{ author = "Vunjak-Novaković, Gordana and Jovanović, G. and Kundaković, Lj. and Obradović, Bojana", year = "1992", abstract = "Flow behavior of gas bubbles, liquid and particles, and mixing in the liquid phase were studied in draft and annulus of a draft tube gas-liquid-solid fluidized bed. The experimental unit was a 80mm ID × 1.5 m column with an 50mm ID internal draft tube. A 2-D unit of the same size and geometry was used to assess the local concentrations and velocities of liquid, particles and air bubbles. Fluid and particle dynamics in the draft and annular regions were analyzed using the drift-flux model extended to the 3- phase flow, and in terms of the effective buoyancy of solid particles. Liquid mixing was studied based on the tracer-response technique, using the model of axial dispersion.", publisher = "Pergamon-Elsevier Science Ltd, Oxford", journal = "Chemical Engineering Science", title = "Flow regimes and liquid mixing in a draft tube gas-liquid-solid fluidized bed", pages = "3458-3451", number = "13-14", volume = "47", doi = "10.1016/0009-2509(92)85057-I" }
Vunjak-Novaković, G., Jovanović, G., Kundaković, Lj.,& Obradović, B.. (1992). Flow regimes and liquid mixing in a draft tube gas-liquid-solid fluidized bed. in Chemical Engineering Science Pergamon-Elsevier Science Ltd, Oxford., 47(13-14), 3451-3458. https://doi.org/10.1016/0009-2509(92)85057-I
Vunjak-Novaković G, Jovanović G, Kundaković L, Obradović B. Flow regimes and liquid mixing in a draft tube gas-liquid-solid fluidized bed. in Chemical Engineering Science. 1992;47(13-14):3451-3458. doi:10.1016/0009-2509(92)85057-I .
Vunjak-Novaković, Gordana, Jovanović, G., Kundaković, Lj., Obradović, Bojana, "Flow regimes and liquid mixing in a draft tube gas-liquid-solid fluidized bed" in Chemical Engineering Science, 47, no. 13-14 (1992):3451-3458, https://doi.org/10.1016/0009-2509(92)85057-I . .