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CLC number: TQ021.1

On-line Access: 2011-04-11

Received: 2010-09-09

Revision Accepted: 2010-12-16

Crosschecked: 2011-01-28

Cited: 6

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Journal of Zhejiang University SCIENCE A 2011 Vol.12 No.4 P.260-267

10.1631/jzus.A1000396


Determination of particle size distribution by multi-scale analysis of acoustic emission signals in gas-solid fluidized bed


Author(s):  Cong-jing Ren, Jing-dai Wang, Di Song, Bin-bo Jiang, Zu-wei Liao, Yong-rong Yang

Affiliation(s):  State Key Laboratory of Chemical Engineering, Department of Chemical and Biochemical Engineering, Zhejiang University, Hangzhou 310027, China

Corresponding email(s):   seasonrcj@zju.edu.cn, liaozw@zju.edu.cn

Key Words:  Particle size distribution (PSD), Acoustic emission (AE), Fluidized bed, Multi-scale, Agglomeration


Cong-jing Ren, Jing-dai Wang, Di Song, Bin-bo Jiang, Zu-wei Liao, Yong-rong Yang. Determination of particle size distribution by multi-scale analysis of acoustic emission signals in gas-solid fluidized bed[J]. Journal of Zhejiang University Science A, 2011, 12(4): 260-267.

@article{title="Determination of particle size distribution by multi-scale analysis of acoustic emission signals in gas-solid fluidized bed",
author="Cong-jing Ren, Jing-dai Wang, Di Song, Bin-bo Jiang, Zu-wei Liao, Yong-rong Yang",
journal="Journal of Zhejiang University Science A",
volume="12",
number="4",
pages="260-267",
year="2011",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A1000396"
}

%0 Journal Article
%T Determination of particle size distribution by multi-scale analysis of acoustic emission signals in gas-solid fluidized bed
%A Cong-jing Ren
%A Jing-dai Wang
%A Di Song
%A Bin-bo Jiang
%A Zu-wei Liao
%A Yong-rong Yang
%J Journal of Zhejiang University SCIENCE A
%V 12
%N 4
%P 260-267
%@ 1673-565X
%D 2011
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1000396

TY - JOUR
T1 - Determination of particle size distribution by multi-scale analysis of acoustic emission signals in gas-solid fluidized bed
A1 - Cong-jing Ren
A1 - Jing-dai Wang
A1 - Di Song
A1 - Bin-bo Jiang
A1 - Zu-wei Liao
A1 - Yong-rong Yang
J0 - Journal of Zhejiang University Science A
VL - 12
IS - 4
SP - 260
EP - 267
%@ 1673-565X
Y1 - 2011
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A1000396


Abstract: 
particle size distribution (PSD) is an important parameter in the process of fluidization, and it always plays a crucial role in a gas-solid fluidized system. A PSD model for on-line PSD determination based on acoustic emission (AE) measurement was developed according to the mechanism of particle collision with the inner wall of the cylinder and multi-scale wavelet decomposition analysis. This PSD model illuminates the quantitative relationship between the energy percentage of AE signals for different scales and the PSD, which indicates the feasibility of the application of the PSD model. Experiments were undertaken both in lab and plant gas-solid fluidized setup with polyethylene particles, and the parameters of the PSD model were calibrated and revised. The experimental conditions and results proved that the PSD model was suitable for on-line measurement and was sufficiently sensible and accurate. Concerning agglomeration, the PSD model also showed exact serviceability on detecting the onset of agglomeration by abnormal PSD, and the result agreed with that from the radiation method. Ultimately, AE measurement was found to be a reliable and credible means for understanding the PSD information that affects the behavior of a system, which can provide valuable guidance for practical applications.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

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