On the effect of solid particle sphericity on the tangential velocity in a cyclone separator

Elshorbagy, Kamel A.; Ashry, Yasser El; Abdelrazek, Amr M.

doi:10.1080/02786826.2021.2016595

Cited by 2 publications

(2 citation statements)

References 32 publications

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“…Finally, zone 4 is related to the central part of the cyclone and along the height, which has the lowest values considering tangential velocity compared to the three above‐mentioned zones. These patterns of behavior from the tangential velocity viewpoint are presented in other research (Elsayed Khairy & Lacor, 2010; Elshorbagy et al, 2022).…”

Section: Resultssupporting

confidence: 74%

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A numerical assessment to select the optimal geometry of a specific cyclone separator of wheat flour processing

Emami,

Rostampour,

Rezvanivand Fanaei

et al. 2024

J Food Process Engineering

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In this study, the effect of the cyclone body height on the flow field within the specific cyclone and also on the performance parameters of the cyclone has been investigated. The five heights of the cyclone as various configurations were I = 600, II = 675, III = 750, IV = 825, and V = 900 mm. A pressure‐based solver was used and the turbulent Reynolds stress model was utilized to simulate the flow. Then, the Lagrangian discrete phase model was used to simulate the solid phase. As the height of the cyclone increases, the pressure drop decreases. Also, the best separation efficiency and the highest particle velocity value were achieved at a height of 750 mm. The maximum values of turbulence intensity, skin friction coefficient, and strain rate were obtained as negative components of cyclone performance at the cyclone body height of 900 mm. The height of 750 mm was recognized as the best height of the cyclone's body.Practical ApplicationsApplying numerical simulation in food processing is a novel method to minimize equipment construction and reach a high‐accuracy design. Computational fluid dynamics can provide an accurate and detailed flow analysis in the cyclone separators utilized in the flour processing plant. The dimensional analysis can help the researchers to achieve the optimum design and enhance the cyclone performance by reducing pressure drop and increasing separation efficiency. Also, the maintenance cost would be significantly reduced due to detecting the critical sections and strengthening them.

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Section: Resultssupporting

confidence: 74%

“…As illustrated in Figure 13, the contours of tangential velocity for the cyclone consist of four distinct zones. the tangential velocity viewpoint are presented in other research (Elsayed Khairy & Lacor, 2010;Elshorbagy et al, 2022).…”

Section: Tangential Velocitymentioning

confidence: 99%

A numerical assessment to select the optimal geometry of a specific cyclone separator of wheat flour processing

Emami,

Rostampour,

Rezvanivand Fanaei

et al. 2024

J Food Process Engineering

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Numerical Simulation of the Effects of Deposits on the Flow Fields and Separation Performance of Cyclones in a Commercial RFCC Reactor

Zhou

Dai

Guo

et al. 2023

Preprint

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Carbon deposits in Residue Fluidized Catalytic Cracking (RFCC) separators could be a safety hazard, they reduce efficiency, may also cause unscheduled shutdowns in industrial production. In this paper, the effect of coking on flow fields and separation performances was studied with an industrial cyclone separator. The time-averaged and dynamic flow-fields were affected significantly by the coking, as well as separation performance. The tangential and axial velocities decreased due to increased coking, with a maximum decrease of 102.9% and 60.7%, respectively. And the pressure drops decreased due to the vortex dissipation losses, with a maximum decrease of 33.8%. The vorticity also aggravated the breakage with the increasing coking as the breakage position moved up to the cone section. The instability of the flow-field affected the separation efficiency, and the separation efficiency, in turn, as a function of coking types, with a maximum decrease of 18.9%. With increased coking, both the pressure eccentricity and dynamic pressure standard deviation increased. And the main frequency of pressure fluctuation decreased from 37 Hz to 9 Hz. This study has the potential to further the understanding of the flow-field characteristics and performance for different coking types in cyclone separators.

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On the effect of solid particle sphericity on the tangential velocity in a cyclone separator

Cited by 2 publications

References 32 publications

A numerical assessment to select the optimal geometry of a specific cyclone separator of wheat flour processing

A numerical assessment to select the optimal geometry of a specific cyclone separator of wheat flour processing

Numerical Simulation of the Effects of Deposits on the Flow Fields and Separation Performance of Cyclones in a Commercial RFCC Reactor

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