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Dehdarinejad E, Bayareh M, Ashrafizaadeh M. A numerical study on combined baffles quick-separation device. INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING 2021. [DOI: 10.1515/ijcre-2021-0007] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The transfer of particles in laminar and turbulent flows has many applications in combustion systems, biological, environmental, nanotechnology. In the present study, a Combined Baffles Quick-Separation Device (CBQSD) is simulated numerically using the Eulerian-Lagrangian method and different turbulence models of RNG k-ε, k-ω, and RSM for 1–140 μm particles. A two-way coupling technique is employed to solve the particles’ flow. The effect of inlet flow velocity, the diameter of the splitter plane, and solid particles’ flow rate on the separation efficiency of the device is examined. The results demonstrate that the RSM turbulence model provides more appropriate results compared to RNG k-ε and k-ω models. Four thousand two hundred particles with the size distribution of 1–140 µm enter the device and 3820 particles are trapped and 380 particles leave the device. The efficiency for particles with a diameter greater than 28 µm is 100%. The complete separation of 22–28 μm particles occurs for flow rates of 10–23.5 g/s, respectively. The results reveal that the separation efficiency increases by increasing the inlet velocity, the device diameter, and the diameter of the particles.
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Affiliation(s)
- Ehsan Dehdarinejad
- Department of Mechanical Engineering , Shahrekord University , Shahrekord , Iran
| | - Morteza Bayareh
- Department of Mechanical Engineering , Shahrekord University , Shahrekord , Iran
| | - Mahmud Ashrafizaadeh
- Department of Mechanical Engineering , Isfahan University of Technology , Isfahan , 84156-83111, Iran
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Morin M, Raynal L, Karri SR, Cocco R. Effect of solid loading and inlet aspect ratio on cyclone efficiency and pressure drop: Experimental study and CFD simulations. POWDER TECHNOL 2021. [DOI: 10.1016/j.powtec.2020.08.052] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Mo X, Cai R, Huang X, Zhang M, Yang H. The effects of wall friction and solid acceleration on the mal-distribution of gas–solid flow in double identical parallel cyclones. POWDER TECHNOL 2015. [DOI: 10.1016/j.powtec.2015.08.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Liu M, Zhou C, Xie J, Lu C, Wang Z. Numerical investigation of performance of a fast gas–solid separator. POWDER TECHNOL 2015. [DOI: 10.1016/j.powtec.2015.01.023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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A transient method to study the pressure drop characteristics of the cyclone in a CFB system. POWDER TECHNOL 2009. [DOI: 10.1016/j.powtec.2008.12.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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