Characterization and CFD-DEM modelling of a prismatic spouted bed

Salikov, Vitalij; Antonyuk, Sergiy; Heinrich, Stefan; Sutkar, Vinayak S.; Deen, NG Niels; Kuipers, J.A.M.

doi:10.1016/j.powtec.2014.05.026

Cited by 95 publications

(41 citation statements)

References 45 publications

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“…This is mostly promising for processes with liquid injections. Similarly, Salikov et al [133] modelled a prismatic spout-fluid bed with two horizontal gas inlets obtaining similar flow features. Fries and colleagues [138] compared three different granulators, one of them a prismatic spouted bed, and evaluated their fluid dynamics and collision intensity in order to predict the properties of the produced particles.…”

Section: Dem Applied To Auxiliary Devicesmentioning

confidence: 86%

Modelling of Spouted and Spout-Fluid Beds: Key for Their Successful Scale Up

et al. 2017

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The development of robust mathematical models could provide the necessary tools for a more rapid, efficient, and reliable spouted bed technology development. Computer simulations can be very useful to aid this design and scale-up process: firstly, they can contribute to obtain a fundamental insight into their complex dynamic behavior by understanding the elementary physical principles such as drag, friction, dissipation etc.; secondly, the simulations can be used as a design tool where the ultimate goal is to have a numerical model with predictive capabilities for gas-particle flows at engineering scale. Clearly, one single simulation method will not be able to achieve this goal, but a hierarchy of methods modelling phenomena on different length and time scales can achieve this. The most fruitful approach will be when they are simultaneously followed, so that they can mutually benefit from each other. In this sense, this paper presents a review of the current state of the art of modelling on spouted and spout-fluid beds through an analysis of recent literature following a multiscale approach (molecular and particle, lab, plant and industrial scale). The main features of the different scales together with their current limits are discussed and specific topics are highlighted as paths that still need to be explored. In summary, the paper aims to define the theoretical setline and the basis of improvement that would lead to a robust multiscale model with solid links between micro and macroscopic phenomena. If done with the correct balance between accuracy and computational costs it will gear SB towards their reliable and successful implementation.

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Section: Dem Applied To Auxiliary Devicesmentioning

confidence: 86%

Modelling of Spouted and Spout-Fluid Beds: Key for Their Successful Scale Up

et al. 2017

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“…However, regarding to the behaviour at increased gas velocities a negative property of this geometry was complained, namely a quickly growing flow instability, making the spouting stability highly dependent on the gas flow rate [10]. In our recent combined study (DPM and experiment) the behaviour of this apparatus under conditions of increasing gas flow rate was treated in more detail [11]. The appearance of the dilute spouting regime at high gas velocities was also proven for this spouted bed type.…”

Section: Prismatic Apparatusmentioning

confidence: 80%

“…to achieve a more intense (vigorous) spouting. Furthermore, the particle rotation is simultaneously increased to some extent, as found experimentally in [12] by means of magnet monitoring and by means of simulations with Discrete Particle Modelling (DPM) in [11,13]. However, regarding to the behaviour at increased gas velocities a negative property of this geometry was complained, namely a quickly growing flow instability, making the spouting stability highly dependent on the gas flow rate [10].…”

Section: Prismatic Apparatusmentioning

confidence: 94%

“…The previous experimental studies on hydrodynamics of this prismatic geometry comprehend the influence of the gas flow rate, solids' properties and inventory, as well as of the inlet size [10][11][12][13].…”

Section: Prismatic Apparatusmentioning

confidence: 99%

“…Fig. 2 shows a typical regime map for Geldart D particles with corresponding flow patterns [11]. In this diagram, the particle Reynolds number at the gas inlets Re p_in (Eq.…”

Section: Prismatic Apparatusmentioning

confidence: 99%

See 2 more Smart Citations

Investigations on the spouting stability in a prismatic spouted bed and apparatus optimization

Salikov

Heinrich

Antonyuk

et al. 2015

Advanced Powder Technology

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Improving the operational stability of the multi‐chamber spout‐fluid bed via the insertion of a submerged partition plate

et al. 2016

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The effect of a submerged partition plate on improving the gas–solid flow robustness and stability in a three‐dimensional spout‐fluid bed with multiple inter‐connected chambers is numerically investigated by means of computational fluid dynamics coupled with discrete element method (CFD‐DEM). Notably, multiple‐chamber beds are necessary in scaling up the spout‐fluid bed. The influence of plate height on gas–solid distribution, spout‐annulus interaction and chamber interaction are also studied to optimize the design. The results demonstrate that inserting a partition plate with height above a certain threshold can effectively improve the stability of spouting and uniformly re‐distribute the flux load in each chamber, giving rise to parallel fountains and lower circulation flux of the solid phase. Results indicate that the plate height should be at least 80% of the packed bed height investigated, with the most optimal being about 92% based on steady spouting, and the maximum solid and gas exchanging fluxes between the chambers. © 2016 American Institute of Chemical Engineers AIChE J, 63: 485–500, 2017

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Characterization and CFD-DEM modelling of a prismatic spouted bed

Cited by 95 publications

References 45 publications

Modelling of Spouted and Spout-Fluid Beds: Key for Their Successful Scale Up

Modelling of Spouted and Spout-Fluid Beds: Key for Their Successful Scale Up

Investigations on the spouting stability in a prismatic spouted bed and apparatus optimization

Improving the operational stability of the multi‐chamber spout‐fluid bed via the insertion of a submerged partition plate

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