The Effect of Temperature on the Minimum Fluidization Velocity Calculated by Distinct Element Method

    • LIU Zhihong
    • Fundamental Technology Dept. Technical Research Laboratory, Ishikawajima-Hanma Heavy Industries Co., Ltd.
    • KAWAGUCHI Toshihiro
    • Department of Mechanophysics Engineering, Graduate School of Engineering, Osaka University.
    • TANAKA Toshitsugu
    • Department of Mechanophysics Engineering, Graduate School of Engineering, Osaka University.
    • TSUJI Yutaka
    • Department of Mechanophysics Engineering, Graduate School of Engineering, Osaka University.

Abstract

The effect of ambient air temperature on the minimum fluidization velocity U_mf of glass beads is investigated by Distinct Element Method (DEM). Under different ambient air temperatures, the pressure drop curves are calculated by DEM to determine U_mf. The mean kinetic energy E of particles is defined to judge whether the particles move or not. The fluidization characteristics of fluidized bed are investigated in details. The calculated U_mf is compared with empirical data. The different behavior of Geldart B and D particles against temperature is reproduced numerically. U_mf decreases with increasing ambient temperature for Geldart B particles, while it increases for Geldart D particles.

Journal

JSME international journal. Ser. B, Fluids and thermal engineering   [List of Volumes]

JSME international journal. Ser. B, Fluids and thermal engineering 45(1), 66-71, 2002-02-15  [Table of Contents]

The Japan Society of Mechanical Engineers

References:  10

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Codes

  • NII Article ID (NAID) :
    110003479010
  • NII NACSIS-CAT ID (NCID) :
    AA10888815
  • Text Lang :
    ENG
  • Article Type :
    ART
  • ISSN :
    13408054
  • NDL Article ID :
    6072422
  • NDL Source Classification :
    ZN11(科学技術--機械工学・工業)
  • NDL Call No. :
    Z53-Y271
  • DOI :
    10.1299/jsmeb.45.66
  • Databases :
    CJP  NDL  NII-ELS  J-STAGE