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Analysis of vortex finder geometry and its influence on cyclone's efficiency and wearing processes by computational fluid dynamics

Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Cyclones are widely used for removal dust of gaseous flows in industrial processes, and various studies were conducted in last decades to improve their performance parameters. However, in process industry, the reliable and uninterrupted operation of the cyclone is of the same importance as performance capabilities. In this work, the effect of vortex finder geometry on wearing processes is analyzed. The work relates to the gas-solid flow, which can be found in real dry-process kiln systems used in cement plants. Numerical studies were performed using Computational Fluid Dynamics software package, and covered three different geometrical versions of analyzed object. The relevant velocities of gas-solid medium within the cyclone, as well as pressure values were calculated with help of DES turbulence model. As a result - the design variant offering best balance between performance parameters and wearing resistance was pointed out.
Twórcy
autor
autor
autor
  • Cracow University of Technology, Production Engineering Institute, Jana Pawła II 37 St., 31-864 Kraków, Poland, phone: +48 12 3743246, jgawlik@mech.pk.edu.pl
Bibliografia
  • [1] Meier H.F. and Mori M., Anisotropic Behavior of the Reynolds Stress in Gas and Gas-Solid Flows in Cyclones, Powder Technology, 101, 108-119, 1999.
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  • [4] Hoekstra A.J., Derksen J.J., and Van Den Akker H.E.A., An experimental and numerical study on turbulent swirling flow in gas cyclones, Chemical Engineering Science, 54, 2055-2056, 1999.
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  • [6] Wang B., Xu D., Xiao G. and Yu A., Numerical study on gas-solid flow in a cyclone separator, Proceedings of 3rd International Conference of CFD in the Minerals an Process Industry, Melbourne, Australia, 10-12 December, 2003.
  • [7] Singh V., Srivastava R., Vitankar V., and Basu B., Simulation of gas-solid flow and design modifications of cement plant cyclones, Proceedings of Fifth International Conference of CFD in the Process Industry, Melbourne, Australia, 13-15 December, 2006.
  • [8] Noriler D., Vegini A., Soares C., Barros A., and Meier H., A new role of reduction in pressure drop in cyclones using computational fluid dynamics techniques, Journal if Chemical Engineering, 21 (01), 93-101, 2004.
  • [9] Ficici F., Ari V., and Kapsiz M., The effects of vortex finder on the pressure drop in cyclone separators, International Journal of the Physical Sciences, 5 (6), 804-813, 2010.
  • [10] Hoekstra A.J., Derksen J.J., and Van Den Akker H.E.A., An experimental and numerical study of turbulent swirling flow in gas cyclones, Chemical Engineering Science, 54, 2055-2065, 1999.
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  • [14] Boysan F., Swithenbank J.A., and Ayers W.H., Mathematical modeling of gas-particle flows in cyclone separators, Encyclopedia of Fluid Mechanics, Volume 4, Gulf Publishing Company, Houston, Texas, 1986.
  • [15] Utikar R., Darmawan N., Tade Evans G., and Glenny M., Hydrodynamic Simulation of Cyclone Separators, Computational Fluid Dynamics, InTech Publisher, 2010.
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  • [17] Finnie I., Some reflections on the past and future of erosion, Wear, 186 (1), 1-10, 1995.
  • [18] Khalil Y.K., and Rosner D.E, Erosion rate prediction and correlation technique for ceramic surfaces exposed to high speed flows of abrasive suspensions, Wear, 201 (1-2),64-79, 1996.
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  • [20] Sommerfeld M., Validation of a stochastic Lagrangian modelling approach for inter-particle collisions in homogeneous isotropic turbulence, International Journal of Multiphase Flow, 27 (10), 1829-1858, 2001.
  • [21] Schade K. et al., Experimental and numerical investigation of particle erosion caused by pulverized fuel in channels and pipework of coal-fired power plant, Powder Techn., 125, 242-250, 2002.
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Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BAR0-0065-0047
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