fevereiro 2015 vol. 1 num. 2 - XX Congresso Brasileiro de Engenharia Química

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A CFD ASSESSMENT OF DRAG MODELS PERFORMANCE ON GAS-SOLID FLOW HYDRODYNAMICS IN A FLUIDIZED BED

LUNA, C. M. R.; ÁVILA, I.; CARROCCI, L. R.; ARCE, G. L. A. F.;

Artigo:

In this paper, a model based on the Eulerian-Eulerian approach considering the kinetic theory of granular flow (KTGF) is used in order to provide a comprehensive comparison between Gidaspow (1994) drag model and recent models found in literature, such as Hill et al. (2001), Yang et al. (2003), Zhang-Reese (2003), Van der Hoff et al. (2005) and Beetstra et al. (2007). The effects of these drag models on hydrodynamics behavior of gas-solid flow in fluidized bed will be investigated by using the MFIX code. The results are used to assess their capacity in predicting parameters such as pressure drop, bed expansion and voidage profiles, and then finally validated with the experimental results of Taghipour et al. (2005), which is available in literature. Results show that Hill et al. (2001), Zhang-Reese (2003) and Beetstra et al. (2007) drag models can be used to predict hydrodynamic parameters of gas-solid flow in a fluidized-bed much more accurately than Gidaspow (1994) model.

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DOI: 10.5151/chemeng-cobeq2014-0017-27527-160466

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Como citar:

LUNA, C. M. R.; ÁVILA, I.; CARROCCI, L. R.; ARCE, G. L. A. F.; "A CFD ASSESSMENT OF DRAG MODELS PERFORMANCE ON GAS-SOLID FLOW HYDRODYNAMICS IN A FLUIDIZED BED", p. 5202-5218 . In: Anais do XX Congresso Brasileiro de Engenharia Química - COBEQ 2014 [= Blucher Chemical Engineering Proceedings, v.1, n.2]. São Paulo: Blucher, 2015.
ISSN 2359-1757, DOI 10.5151/chemeng-cobeq2014-0017-27527-160466

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