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Effects of deswirler position and its centre body shape as well as vortex finder extension downstream on cyclone performance
Department of Machines and Apparatus for Chemical and Silicate Production, Belarusian State Technological University.
Institute of Particle Process Engineering, University of Kaiserslautern.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Fluid and Experimental Mechanics.ORCID iD: 0000-0001-9789-6293
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Fluid and Experimental Mechanics.ORCID iD: 0000-0002-1033-0244
2018 (English)In: Powder Technology, ISSN 0032-5910, E-ISSN 1873-328X, Vol. 336, p. 45-56Article in journal (Refereed) Published
Abstract [en]

The performance of a cyclone is studied when changing the position of the deswirler in the vortex finder, its centre body shape and a downstream vortex finder extension. This is done with simulations applying a Reynolds stress model for the turbulence. An extension of the vortex finder (from 2.64 dvf to 6.8 dvf) has almost no effect on cyclone pressure drop or collection efficiency. Moreover, the extension does not affect the pressure losses in the vortex finder. The closer the deswirler is installed to the vortex finder inlet the more significant is its effects on cyclone performance. A streamlined ellipsoidal shape of the deswirler centre body is preferable to a cylindrical one since it leads to lower pressure losses. Installation of the deswirler with a streamlined ellipsoidal centre body 2.64 diameters downstream the vortex finder inlet reduces pressure losses in the vortex finder by 74% as compared to a standard set-up. This leads to a 32% reduction in total pressure drop without deteriorating the separation capability of the cyclone.

Place, publisher, year, edition, pages
Elsevier, 2018. Vol. 336, p. 45-56
National Category
Fluid Mechanics and Acoustics
Research subject
Fluid Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-68895DOI: 10.1016/j.powtec.2018.05.034Scopus ID: 2-s2.0-85048500045OAI: oai:DiVA.org:ltu-68895DiVA, id: diva2:1209887
Note

Validerad;2018;Nivå 2;2018-06-25 (andbra)

Available from: 2018-05-24 Created: 2018-05-24 Last updated: 2018-06-25Bibliographically approved

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Andersson, Anders Gustav

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