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Influence of selected Eulerian Multiphase Model parameters on the simulation results for a spouted bed grain dryer

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EN
Abstrakty
EN
The results of a numerical simulation of a spouted bed grain dryer based on the Eulerian Multiphase Model are presented. The influence of various model parameters on the height of the fountain forming in the drying chamber was analyzed. The following computer model parameters were considered: air inlet velocity, grain size and density, and the lowering of bed surface resulting from drying shrinkage and grain pack. An analysis of the approach of turbulence modeling of similar systems is included. The number of computation dimensions and numerical grids is discussed. The presented studies are based on earlier experiments conducted at a dedicated experimental station. Their main objective was to determine the basic principles of modeling fluidized beds found in grain dryers and the computer model's sensitivity to changes in its basic parameters.
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45--70
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Bibliogr. 34 poz., rys., tab.
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autor
Bibliografia
  • [1] Markowski M, Sobieski W, Konopka I, Tanska M and Biłobrzewski I 2007 Drying Technology 25 1621
  • [2] Sobieski W and Markowski M 2006 6th Workshop "Modelling of Multiphase Flows In Thermo-Chemical Systems - numerical methods", Stawiska, Art PPW06_042 14 (in Polish)
  • [3] Sobieski W 2007 Indicator of Fluidized Bed Computer Model Sensitivity to Changes in Physical Parameters' Values, Annu. Rev. Agric. Engng (submitted)
  • [4] 2005 Fluent 6.2 Documentation Tutorial 19. Using the Eulerian Multiphase Model for Granular Flow
  • [5] Narumanchi S V J, Hassani V and Bharathan D 2005 Technical Report, NREL/TP-540-38787, National Laboratory of the U. S. Department of Energy, Office of Energy Efficiency and Renewable Energy
  • [6] Sobieski W 2006 Annu. Rev. Agric. Engng 5/1 95
  • [7] Chill Y- T 1999 Computational Fluid Dynamics Simulations Of Hydraulic Energy Absorber, MSc Thesis, Virginia Polytechnic Institute and State University http://scholar.lib.vt.edu/theses/available/etd-082599-160 155/unrestricted/ETD_Main.pdf
  • [8] Szafran R, Kmiec A and Ludwig W 2005 Drying Technology 23 1723
  • [9] Duarte C R, Murata V V and Barrozo M A S 2005 Brazilian J. Chem. Engng 22 (02) 263
  • [10] Duarte C R, Murata V V and Barrozo M A S 2004 Proc. 14th Int. Drying Symposium (IDS 2004), São Paulo, Brazil A, pp. 581-588
  • [11] Zhong W, Zhang M, Baoshehg J and Zhulin Y 2006 Chinese J. Chem. Engng 14 (5) 611
  • [12] Bell RA 2000 Numerical Modelling of Multi-Particle Flows in Bubbling Gas-Solid Fluidised Beds, Ph.D. Thesis, School of Mechanical and Manufacturing Engineering, Swinburne University of Technology
  • [13] Benyahia S, Syamlal M and O'Brien T J 2007 Summary of MFIX Equations 2005-4, http://www.mfix.org/ documentation/MFIXEquations2005-4-3.pdf
  • [14] Gomez L C and Milioli F E 2004 Brazilian J. Chem. Engng 21 (04) 569
  • [15] Hjertager B H, Solberg T and Hansen K G 2005 4th Int. Conf. on CFD in the Oil and Gas, Metallurgical and Process Industries SINTEF/NTNU, Trondheim, Norway, pp. 1-12
  • [16] Link J M, Cuypers L A, Deen N G and Kuipers J A M 2005 Chem. Engng Sci. 60 3425
  • [17] 2006 Fluent 6.3 User's Guide Chapter 23. Modeling Multiphase Flows
  • [18] Ibsen C H 2002 An Experimental and Computational Study of Gas-Particle Flowin Circulating Fluidised Reactors, Ph.D. Thesis, Esbjerg, Denmark
  • [19] Manninen M and Taivassalo V 1996 VTT Publications, Technical Research Centre of Finland 288 67
  • [20] O'Brien T J, Syamlal M and Guenther Hc 2003 3rd Int. Conf. on CFD in the Minerals and Process Industries, Melbourne, Australia, pp. 469-474
  • [21] Syamlal M, Rogers W and O'Brien T 1993 MFIX Documentation Theory Guide, U.S. Department of Energy, Office of Fossil Energy, Morgantown Energy Technology Center, Morgantown, West Wirginia, http://www.mfix.org
  • [22] Wachem B 2000 Derivation, Implementation, and Validation of Computer Simulation Models for Gas-Solid Fluidized Beds, Ph.D. Thesis, Delft University of Technology
  • [23] Weber M W 2004 Simulation Of Cohesive Particle Flows In Granular And Gas-Solid Systems, Ph.D. Thesis, Department of Chemical and Biological Engineering, University of Colorado
  • [24] Zhang S J and Yu A B 2002 Powder Technology 123 147
  • [25] Duarte C R, Neto J L V, Santana R C, Borges J E, Murata V V and Barrozo M A S 2005 2nd Mercosur Congress on Chemical Engineering, 4th Mercosur Congress on Process Systems Engineering, Rio de Janeiro (no pagination)
  • [26] Faulkner G 2004 Numerical Investigation Into the Aeration of Grain Silos, Dissertation, Toowoomba, Australia
  • [27] Szafran R 2004 Modeling of Drying in a Spouted Bed Dryer, Ph.D. Thesis, Wroclaw (in Polish)
  • [28] Křištal J, Jiřičny V and Stanek V 2004 The CFD Simulation and an Experimental Study of Hydrodynamic Behaviour of Liquid-Solid Flow, http://home.icpf.cas.cz/kristal/www/pdf/CHISA04b.pdf
  • [29] Boyalakuntla D J, Pannala S, Finney Ch, Daw S, Bruns D and Zhou J 2005 AIChE Annual Meeting, Cincinnati (multimedial materials)
  • [30] Arsenijevič Z, Grbawčič Z and Garič-Grulovič R 2002 Drying of Solutions and Suspensions in the Modified Spouted Bed with Draft Tube, UDC: 532.546:66.047.7/.8, BIBLID: 0354-9836 6 (2) 47
  • [31] Razumow I M 1975 Fluidization and pneumatic transport of loose materials, WNT, Warsaw (in Polish)
  • [32] Derksen J and Sundaresan S 2004 Plane Couette Flow of Dense Liquid-particle Suspensions http://fluid.ippt.gov.pl/ictam04/text/sessions/ docs/FM20/12397 /FM20_12397.pdf
  • [33] Magnusson A, Rundqvist R, Almstedt A E and Johnsson F 2005 Powder Technology 151 19
  • [34] MFIX Thtorials, http://www.mfix.org/members/downloads/tutorials.tar.gz
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPG4-0035-0062
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