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Large Eddy Simulation Investigation of an Industrial Cyclone Separator Fitted with a Pressure Recovery Deswirler
Author(s) -
Misiulia Dzmitry,
Andersson Anders Gustav,
Lundström Tord Staffan
Publication year - 2017
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201600505
Subject(s) - cyclonic separation , pressure drop , cyclone (programming language) , mechanics , vortex , separator (oil production) , large eddy simulation , computer simulation , materials science , flow (mathematics) , environmental science , meteorology , engineering , turbulence , physics , thermodynamics , mechanical engineering , field programmable gate array , inlet , embedded system
A cyclone fitted with a deswirler of original design has been investigated by means of large eddy simulation. Installation of the deswirler reduces significantly the positive static pressure near the wall as well as the negative static pressure in the central region. It also decreases the maximum tangential velocities in the main separation zone. The deswirler enables a substantial reduction of the backward flow at the gas outlet and a more uniform distribution of the axial velocities at the gas outlet. It also considerably reduces pressure losses in the vortex finder lowering the cyclone pressure drop by almost about one third but it deteriorates the collection efficiency of particles with diameters of less than 8 µm, thus increasing the cut size.