Effects of DC electric fields on meso-scale structures in electrostatic gas-solid fluidized beds
Effects of DC electric fields on meso-scale structures in electrostatic gas-solid fluidized beds
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直流电场对静电气固流化床细观结构的影响
DOI:
10.1016/j.cej.2017.09.049
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发表时间:
2018-01
影响因子:
15.1
通讯作者:
Yongrong Yang
中科院分区:
文献类型:
--
作者:
Yao Yang;Shiyi Ge;Yefeng Zhou;Jingyuan Sun;Zhengliang Huang;Jingdai Wang;Musango Lungu;Zuwei Liao;Binbo Jiang;Yongrong Yang
Electric fields have great potential to control meso-scale structures, typically bubbles and agglomerates in gas-solid fluidized beds. However, previous research only considered the effects of polarization forces and ignored the electrostatic effects. This work, by means of cold model experiments, for the first time investigates the effects of DC electric fields on meso-scale structures in a 3-D fluidized bed with electrostatic effects. Results show that particles will also experience the Coulomb force under the effects of electrostatics besides of polarization forces, and the effects of these two electric field forces are different. The Coulomb forces make particles migrate at lower field strengths, then increases the bubble size and breaks up agglomerates. While at higher field strengths, the polarization forces result in formation of agglomerates and reduction of bubble size. Therefore, the effects mechanism of electric fields is the competition effects between the Coulomb force and the polarization forces. The critical transition field strength, at which the predominant position of Coulomb and polarization forces on bubbles and agglomerates changes, is significant in the control of meso-scale structures by DC electric fields.
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影响因子:
4.2
作者:
Congjing Ren;Tan Yueqi;Jingdai Wang;Yongrong Yang-
通讯作者:
Congjing Ren;Tan Yueqi;Jingdai Wang;Yongrong Yang-
影响因子:
4.2
作者:
Dong Kezeng;Zhang Qing;Huang Zhengliang;Liao Zuwei;Wang Jingdai;Yang Yongrong
通讯作者:
Yang Yongrong
DOI:
10.1016/j.ijmultiphaseflow.2010.12.007
发表时间:
2011-06
影响因子:
3.8
作者:
J. van Ommen;S. Sasic;John van der Schaaf;S. Gheorghiu;F. Johnsson;M. Coppens
通讯作者:
J. van Ommen;S. Sasic;John van der Schaaf;S. Gheorghiu;F. Johnsson;M. Coppens
DOI:
10.1109/tim.2016.2540862
发表时间:
2016-07-01
影响因子:
5.6
作者:
Gao, Zhongke;Yang, Yuxuan;Chen, Guanrong
通讯作者:
Chen, Guanrong
影响因子:
1.6
作者:
F. K. V. Willigen;J. van Turnhout;J. V. Ommen;C. M. Bleek
通讯作者:
F. K. V. Willigen;J. van Turnhout;J. V. Ommen;C. M. Bleek