]*>","")" /> 高密度循环流化床中局部颗粒质量流率及操作域的划分

CIESC Journal

• 化工学报 • 上一篇    下一篇

高密度循环流化床中局部颗粒质量流率及操作域的划分

魏飞,陆坊斌,金涌,俞芷青   

  1. 清华大学化学工程系!北京l00084,清华大学化学工程系!北京l00084,清华大学化学工程系!北京l00084,清华大学化学工程系!北京l00084
  • 出版日期:1996-06-25 发布日期:1996-06-25

MASS FLUX PROFILES AND FLOW REGIMES IN A HIGH DENSITY CIRCULATING FLUIDIZED BED

Wei Fei;Lu Fangbin;Jin Yong;Yu Zhiqing(Department of Chemical Engineering,Tsinghua University,Beijing 100084)   

  • Online:1996-06-25 Published:1996-06-25

Abstract: Results of experimental measurement of solids mass flux profiles in a high density circulating fluidized bed riser over a wide operating condition are described.The existence of three solids flux radial profile regimes:core-annular,parabolic and U-shaped is found.A model for all the three regimes is proposed and correlations of model parameters are obtained.Comparison of predicted solids flux profiles with experimental data is very promising.The correlations for the boundaries of the three regimes and the radius of core for core-annular regime are obtained.

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