Elsayed, K., Lacor, C. (2011). Numerical Investigations of the Effect of Different Dust Outlet Designs on the Cyclone Performance and Flow Pattern. test, 14(AEROSPACE SCIENCES & AVIATION TECHNOLOGY, ASAT - 14 – May 24 - 26, 2011), 1-12. doi: 10.21608/asat.2011.23227
Kh. Elsayed; C. Lacor. "Numerical Investigations of the Effect of Different Dust Outlet Designs on the Cyclone Performance and Flow Pattern". test, 14, AEROSPACE SCIENCES & AVIATION TECHNOLOGY, ASAT - 14 – May 24 - 26, 2011, 2011, 1-12. doi: 10.21608/asat.2011.23227
Elsayed, K., Lacor, C. (2011). 'Numerical Investigations of the Effect of Different Dust Outlet Designs on the Cyclone Performance and Flow Pattern', test, 14(AEROSPACE SCIENCES & AVIATION TECHNOLOGY, ASAT - 14 – May 24 - 26, 2011), pp. 1-12. doi: 10.21608/asat.2011.23227
Elsayed, K., Lacor, C. Numerical Investigations of the Effect of Different Dust Outlet Designs on the Cyclone Performance and Flow Pattern. test, 2011; 14(AEROSPACE SCIENCES & AVIATION TECHNOLOGY, ASAT - 14 – May 24 - 26, 2011): 1-12. doi: 10.21608/asat.2011.23227

Numerical Investigations of the Effect of Different Dust Outlet Designs on the Cyclone Performance and Flow Pattern

International Conference on Aerospace Sciences and Aviation Technology
Article 12, Volume 14, AEROSPACE SCIENCES & AVIATION TECHNOLOGY, ASAT - 14 – May 24 - 26, 2011, May 2011, Pages 1-12    PDF (819.94 K)
Document Type: Original Article
DOI: 10.21608/asat.2011.23227
Authors
Kh. Elsayed1; C. Lacor2
1PhD researcher, Department of Mechanical Engineering, Vrije Universiteit Brussel, Pleinlaan 2 -1050 Brussels- Belgium.
2Professor, Department of Mechanical Engineering, Vrije Universiteit Brussel, Pleinlaan 2 - 1050 Brussels- Belgium.
Abstract
The effect of the cyclone dust outlet shape on the flow field pattern and velocity profiles has been investigated computationally using Reynolds stress turbulence model (RSM) for four cyclone separators (without dustbin, with dustbin, with dipleg, and with dust hopper (dipleg plus dustbin)). Results show that, the maximum tangential velocity is almost the same for the four tested cyclones. No acceleration occurs in the cyclone space (the maximum tangential velocity is nearly constant throughout the cyclone). Neglecting including the dustbin in the flow domain causes a slightly over estimation of the pressure drop. While a negligible under-estimation in the pressure drop is obtained when neglecting the effect of
dipleg. The axial velocity profiles for the four cyclones are different. An inverted V profiles when including the dustbin and an inverted W profiles without the dustbin or with the dipleg. The differences between the pressure drop and cut-off diameters obtained with and without the dustbin or dipleg are minor. Consequently, the numerical simulations of cyclone separator without dustbin or dipleg are quite acceptable with large saving in computational resources.
Keywords
Cyclone Separator; Cyclone Geometry; Dustbin; Dipleg; Reynolds stress turbulence model (RSM)
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