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      CFD study for gas and gas-solid flows in high-efficiency cyclones: comparison between a new design and stairmand type

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          Abstract

          Cyclones are equipments used for gas-solid separation in many applications at industrial level, however, they are considered low-efficiency devices and their design have been simplified to basic models without further improvements. This paper presents a numerical study by Computational Fluid Dynamics (CFD) for gas and gas-solid flows in two designs of High-Efficiency (H.E.) cyclones: the commonly known Stairmand cyclone and one proposedbyLópez, Trujillo and Quintana (LTQ) that showed better performances according to preliminary calculations. The turbulence of the gas flow was obtained by the Reynolds Stress Model (RSM). The pressure and velocity fields of both geometries were analyzed. The results indicate that the proposed design has lower pressure drops and higher collection efficiency for the given operation conditions, allowing savings in operating costs.

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          Most cited references17

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          Numerical Heat Transfer and Fluid Flow

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            Numerical study of gas–solid flow in a cyclone separator

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              Modeling the gas and particle flow inside cyclone separators

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Journal
                laar
                Latin American applied research
                Lat. Am. appl. res.
                Universidad Nacional del Sur y Consejo Nacional de Investigaciones Científicas y Técnicas (Bahía Blanca, Buenos Aires, Argentina )
                0327-0793
                1851-8796
                January 2013
                : 43
                : 1
                : 7-15
                Affiliations
                [02] orgnameUniversidad Pontificia Bolivariana orgdiv1Chemical Engineering Department german.quintana@ 123456upb.edu.co
                [01] Medellín orgnameUniversidad Pontificia Bolivariana orgdiv1Chemical Engineering Department Colombia
                Article
                S0327-07932013000100002
                0606eec0-dc5f-46bb-a514-881b70933d49

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : 27 November 2011
                : 26 April 2012
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 18, Pages: 9
                Product

                SciELO Argentina


                Cyclone Separators,CFD,Reynolds Stress Model,Gas-solid Flows

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