JOURNAL OF CHEMICAL ENGINEERING OF JAPAN | |
EMULSION PHASE EXPANSION AND SEDIMENTATION VELOCITY IN FLUIDIZED BEDS OF FINE PARTICLES | |
TAKAMI KAI1  TAKESHIGE TAKAHASHI1  AKIKO IWAKIRI1  | |
[1] Department of Chemical Engineering, Kagoshima University | |
关键词: Fluidization; Fluidized Bed; Bed Expansion; Minimum Fluidization Velocity; Sedimentation; | |
DOI : 10.1252/jcej.20.282 | |
来源: Maruzen Company Ltd | |
【 摘 要 】
References(17)Cited-By(15)In fluidized beds of fine particles, minimum fluidization velocity Umf, voidage of the emulsion phase εe and sedimentation velocity Us were measured for various gas-powder systems. For both Umf and Us, the relationship between velocity and voidage was experimentally determined on the basis of the Richardson-Zaki equation. The voidage of the emulsion phase was correlated by a dimensionless parameter taking into account the effect of gas density. By using this correlation and the relationship between velocity and voidage obtained in this study, Us was expressed as a function of Umf. The calculated Us from Umf agreed with the experimental data.
【 授权许可】
Unknown
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