Stabilizing effect of plasma discharge on bubbling fluidized granular bed

doi:10.1088/1674-1056/24/7/074502

中国物理B ›› 2015, Vol. 24 ›› Issue (7): 74502-074502.doi: 10.1088/1674-1056/24/7/074502

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇下一篇

Stabilizing effect of plasma discharge on bubbling fluidized granular bed

胡茂彬, 党赛超, 马强, 夏维东

School of Engineering Science, University of Science and Technology of China, Hefei 230026, China

收稿日期:2014-10-21 修回日期:2015-01-04 出版日期:2015-07-05 发布日期:2015-07-05
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11035005 and 11034010).

Stabilizing effect of plasma discharge on bubbling fluidized granular bed

Hu Mao-Bin (胡茂彬), Dang Sai-Chao (党赛超), Ma Qiang (马强), Xia Wei-Dong (夏维东)

School of Engineering Science, University of Science and Technology of China, Hefei 230026, China

Received:2014-10-21 Revised:2015-01-04 Online:2015-07-05 Published:2015-07-05
Contact: Hu Mao-Bin, Xia Wei-Dong E-mail:humaobin@ustc.edu.cn;wdxia@ustc.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11035005 and 11034010).

摘要/Abstract

摘要：

Fluidized beds have been widely used for processing granular materials. In this paper, we study the effect of plasma on the fluidization behavior of a bubbling fluidized bed with an atmospheric pressure plasma discharger. Experiment results show that the bubbling fluidized bed is stabilized with the discharge of plasma. When the discharge current reaches a minimum stabilization current C_ms, air bubbles in the bed will disappear and the surface fluctuation is completely suppressed. A simplified model is proposed to consider the effect of electric Coulomb force generated by the plasma. It is found that the Coulomb force will propel the particles to move towards the void area, so that the bubbling fluidized bed is stabilized with a high enough plasma discharge.

关键词: plasma fluidized bed, granular matter, stabilization effect

Abstract:

Key words: plasma fluidized bed, granular matter, stabilization effect

中图分类号: (Granular systems)

45.70.-n

52.77.-j (Plasma applications) 89.75.Fb (Structures and organization in complex systems)

胡茂彬, 党赛超, 马强, 夏维东. Stabilizing effect of plasma discharge on bubbling fluidized granular bed[J]. 中国物理B, 2015, 24(7): 74502-074502.

Hu Mao-Bin (胡茂彬), Dang Sai-Chao (党赛超), Ma Qiang (马强), Xia Wei-Dong (夏维东). Stabilizing effect of plasma discharge on bubbling fluidized granular bed[J]. Chin. Phys. B, 2015, 24(7): 74502-074502.

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Stabilizing effect of plasma discharge on bubbling fluidized granular bed

Stabilizing effect of plasma discharge on bubbling fluidized granular bed

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