Abstract
The influence of cyclone cone wall roughness on swirling flow characteristics is evaluated by considering different numbers of the inlet when the total flow rate is kept constant. Three-dimensional simulations are performed using the Eulerian–Lagrangian approach and RSM turbulence model. Effective parameters such as tangential and axial velocity distributions, turbulence intensity, pressure drop, particle collection efficiency, and erosion rate are investigated for the various number of inlets and different values of cone roughness. The results demonstrate that tangential and axial velocities are enhanced with the cone roughness. The pressure drop decreases with the cone roughness and increases with the inlet velocity. It is demonstrated that cutoff size diameter is affected by the number of inlets and cone wall roughness. For example, the three-inlet cyclone with a smooth-walled cone can collect 22.3-μm particles, while this cyclone collects 19.7-, 17.6-, 17-, 16.6-, and 16.2-μm particles when cone wall roughness is 0.2, 0.5, 1, 2, and 3 mm, respectively. Besides, it is observed that the collection efficiency is affected by the roughness slightly for the cone roughness ranging from 3 to 6 mm. The results demonstrate that the wall erosion rate is reduced with the cone wall roughness. It is maximum for the one-inlet cyclone and is minimum for a three-inlet one.
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Abbreviations
- A face :
-
Cyclone surface, m2
- \(C_{{\text{D}}}\) :
-
Drag coefficient
- \(d_{{\text{p}}}\) :
-
Particle diameter, m
- E R :
-
Erosion rate, kg/m2s
- Eu :
-
Euler number
- \(F_{{\text{D}}}\) :
-
Drag force
- N, N p :
-
Number of particles
- \(\overline{p}\) :
-
Average pressure, Pa
- \(R_{ij}\) :
-
Reynolds stress tensor
- \(R_{Nu}\) :
-
Roughness height, m
- \(Re_{{\text{p}}}\) :
-
Particle Reynolds number
- St :
-
Stokes number
- t :
-
Time, s
- \(\overline{u}\) :
-
Averaged velocity, m/s
- \(u_{{\text{A}}}\) :
-
Air velocity, m/s
- \(u_{{\text{P}}}\) :
-
Particle velocity, m/s
- μ :
-
Dynamic viscosity, Pa.s
- \({\rho }_\text{p}\) :
-
Particle density, kg/m3
- \(\nu\) :
-
Kinematic viscosity, m2/s
- \({\rho }_\text{g}\) :
-
Gas density, kg/m3
- \(\rho\) :
-
Gas density, kg/m3
References
Avci A, Karagoz I (2003) Effects of flow and geometrical parameters on the collection efficiency in cyclone separators. J Aerosol Sci 34:937–955
Brar LS, Sharma RP, Elsayed K (2015) The effect of the cyclone length on the performance of stairmand high-efficiency cyclone. Powder Technol 286:668–677. https://doi.org/10.1016/j.powtec.2015.09.003
Chen J, Shi M (2007) A universal model to calculate cyclone pressure drop. Powder Technol 171:184–191. https://doi.org/10.1016/j.powtec.2006.09.014
Dehdarinejad E, Bayareh M (2021) An overview of numerical simulations on gas-solid cyclone separators with tangential inlet. ChemBioEng 8(4):375–391
Dehdarinejad E, Bayareh M (2022) Impact of non-uniform surface roughness on the erosion rate and performance of a cyclone separator. Chem Eng Sci 249:117351. https://doi.org/10.1016/j.ces.2021.117351
Dehdarinejad E, Bayareh M, Ashrafizaadeh M (2021) A numerical study on combined baffles quick-separation device. Int J Chem Reactor Eng 19(5):515–526
Dirgo J, Leith D (1985) Cyclone collection efficiency: comparison of experimental results with theoretical predictions. Aerosol Sci Technol 4:401–415
Elsayed K, Lacor C (2011) The effect of cyclone inlet dimensions on the flow pattern and performance. Appl Math Model 35:1952–1968
Elsayed K, Lacor C (2013) The effect of cyclone vortex finder dimensions on the flow pattern and performance using LES. Comput Fluids 71:224–239
Foroozesh J, Parvaz F, Hosseini SH, Ahmadi G, Elsayed K, Babaoğlu NU (2021) Computational fluid dynamics study of the impact of surface roughness on cyclone performance and erosion. Powder Technol 389:339–354
Gao X, Chen J, Feng J, Peng X (2013) Numerical investigation of the effects of the central channel on the flow field in an oil–gas cyclone separator. Comput Fluids 92:45–55. https://doi.org/10.1016/j.compfluid.2013.11.001
Hoekstra AJ (2000) Gas flow field and collection efficiency of cyclone separators Dr th, Delft University of Technology
Huang A, Maeda N, Shibata D, Fukasawa T, Yoshida H, Kuo H (2017) Influence of a laminarizer at the inlet on the classification performance of a cyclone separator. Sep Purif Technol 174:408–416. https://doi.org/10.1016/j.seppur.2016.09.053
Karagoz I, Avci A (2005) Modelling of the pressure drop in tangential inlet cyclone separators. Aerosol Sci Technol 39:857–865
Karagoz I, Kaya F (2007) CFD investigation of the flow and heat transfer characteristics in a tangential inlet cyclone. Int Commun Heat Mass Transf 34:1119–1126. https://doi.org/10.1016/j.icheatmasstransfer.2007.05.017
Kaya F, Karagoz I (2008) Performance analysis of numerical schemes in highly swirling turbulent flows in cyclones. Curr Sci 94:1273–1278
Kaya F, Karagoz I (2012) Experimental and numerical investigation of pressure drop coefficient and static pressure difference in a tangential inlet cyclone separator. Chem Pap 66:1019–1025. https://doi.org/10.2478/s11696-012-0214-7
Kaya F, Karagoz I, Avci A (2011) Effects of surface roughness on the performance of tangential inlet cyclone separators. Aerosol Sci Technol 45:988–995
Misiulia D, Lidén D, Antonyuk S (2022) Performance characteristics of a small scale cyclone separator operated in different flow regimes. J Aerosol Sci 163:105980. https://doi.org/10.1016/j.jaerosci.2022.105980
Oka YI, Okamura K, Yoshida T (2005) Practical estimation of erosion damage caused by solid particle impact: Part 1: Effects of impact parameters on a predictive equation. Wear 259:95–101. https://doi.org/10.1016/j.wear.2005.01.039
Qian F, Wu Y (2009) Effects of the Inlet section angle on the collection performance of a cyclone. Chem Eng Res Des 7:1567–1572. https://doi.org/10.1016/j.cherd.2009.05.001
Safikhani H, Zamani J, Musa M (2017) Numerical study of flow field in new design cyclone separators with one, two and three tangential inlets. Adv Powder Technol 29(3):611–622. https://doi.org/10.1016/j.apt.2017.12.002
Sedrez TA, Decker RK, da Silva MK, Noriler D, Meier HF (2017) Experiments and CFD-based erosion modeling for gas-solids flow in cyclones. Powder Technol 311:120–131. https://doi.org/10.1016/j.powtec.2016.12.059
Skorve TR (2011) Experimental and theoretical study on the effect of wall roughness on the phenomenon end of the vortex in swirl tubes. Master Thesis, University of Bergen.
Uygur N, Parvaz F, Hossein S, Elsayed K (2021) Influence of the inlet cross-sectional shape on the performance of a multi-inlet gas cyclone. Powder Technol 384:82–99. https://doi.org/10.1016/j.powtec.2021.02.008
Vieira RE, Mansouri A, McLaury BS, Shirazi SA (2016) Experimental and computational study of erosion in elbows due to sand particles in air flow. Powder Technol 288:339–353
Vignesh R, Balaji D, Surya M, Vishnu Pragash A, Vishnu R (2019) Numerical modelling of spiral cyclone flow field and the impact analysis of a vortex finder. Lect Notes in Mech Eng. https://doi.org/10.1007/978-981-13-2718-6_34
Wang S, Li H, Wang R, Wang X, Tian R, Sun Q (2018) Effect of the inlet angle on the performance of a cyclone separator using CFD-DEM. Adv Powder Technol 30(2):277–239. https://doi.org/10.1016/j.apt.2018.10.027
Wu X, Chen X (2019) Effects of vortex finder shapes on the performance of cyclone separators. Environ Prog Sustain Energy 38:1–7. https://doi.org/10.1002/ep.13168
Zhang G, Chen G, Yan X (2018) Evaluation and improvement of particle collection efficiency and pressure drop of cyclones by redistribution of dustbins. Chem Eng Res Des 139:52–61. https://doi.org/10.1016/j.cherd.2018.09.021
Zheng Y, Li X, Ni L (2022) Experimental study on the separation performance of an enhanced cyclone with shunt device. Sep Purif Technol 291:120962. https://doi.org/10.1016/j.seppur.2022.120962
Zhao B (2005) Development of a new method for evaluating cyclone efficiency. Chem Eng Process Process Intensif 44:447–451. https://doi.org/10.1016/j.cep.2004.06.007
Zhou F, Sun G, Han X, Zhang Y (2018a) Experimental and CFD study on effects of spiral guide vanes on cyclone performance. Adv Powder Technol. https://doi.org/10.1016/j.apt.2018.09.022cxs
Zhou F, Sun G, Zhang Y, Ci H, Wei Q (2018b) Experimental and CFD study on the effects of surface roughness on cyclone performance. Sep Purif Technol 193:175–183. https://doi.org/10.1016/j.seppur.2017.11.017
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Dehdarinejad, E., Bayareh, M. & Ashrafizaadeh, M. Impact of cone wall roughness on turbulence swirling flow in a cyclone separator. Chem. Pap. 76, 5579–5599 (2022). https://doi.org/10.1007/s11696-022-02261-6
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DOI: https://doi.org/10.1007/s11696-022-02261-6