Characterization of flow-induced vibrations in gas-solid fluidized beds: Elements of the theory

被引:19
作者
Briongos, Javier Villa [1 ]
Sobrino, Celia [1 ]
Gomez-Hernandez, Jesus [1 ]
Santana, Domingo [1 ]
机构
[1] Univ Carlos III Madrid, Escuela Politecn Super, Dept Ingn Term & Fluidos, Madrid 28911, Spain
关键词
Fluidization; Design; Instrumentation; Vibration analysis; Hydrodynamics; Control; ACOUSTIC-EMISSION AE; PRESSURE-FLUCTUATIONS; PARTICLE MOTION; WAVES; OSCILLATIONS; PROPAGATION; GRANULATOR; DIAGNOSIS; INJECTION; VELOCITY;
D O I
10.1016/j.ces.2013.01.056
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
This paper revisits the basic hypothesis underlying the measurement of flow-induced vibration in fluidized beds. A novel theoretical approach based on the standing pressure field characterizing the bed dynamics is proposed to link the pressure fluctuations to the measured accelerometer signals. The model provides a reliable prediction of the carrying frequency band and helps in designing the accelerometer measurement process. The model was tested with previous results reported in the literature as well as with piezoelectric accelerometer measurements collected from a lab-scale experimental facility. A study on accelerometer measurements was conducted to identify the main limitations expected for measuring flow-induced vibrations in a gas-solid fluidized bed. The structural response of the vessel to flow-induced vibration was mostly determined by the "bed acoustics" that can be dominated by either elastic or compression waves. Finally, the survival of an envelope process on the measured accelerometer signal guaranteed the quality of the flow dynamical information collected during the measurement process. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码:181 / 196
页数:16
相关论文
共 42 条
[1]   Nonintrusive Characterization of Fluidized Bed Hydrodynamics Using Vibration Signature Analysis [J].
Abbasi, A. ;
Sotudeh-Gharebagh, R. ;
Mostoufi, N. ;
Zarghami, R. ;
Mahjoob, M. J. .
AICHE JOURNAL, 2010, 56 (03) :597-603
[2]   Non-intrusive monitoring of bubbles in a gas-solid fluidized bed using vibration signature analysis [J].
Abbasi, M. ;
Sotudeh-Gharebagh, R. ;
Mostoufi, N. ;
Mahjoob, M. J. .
POWDER TECHNOLOGY, 2009, 196 (03) :278-285
[3]   A STUDY OF PRESSURE-FLUCTUATIONS IN A BUBBLING FLUIDIZED-BED [J].
BASKAKOV, AP ;
TUPONOGOV, VG ;
FILIPPOVSKY, NF .
POWDER TECHNOLOGY, 1986, 45 (02) :113-117
[4]   PROPAGATION OF PRESSURE WAVES AND FORCED-OSCILLATIONS IN GAS-SOLID FLUIDIZED-BEDS AND THEIR INFLUENCE ON DIAGNOSTICS OF LOCAL HYDRODYNAMICS [J].
BI, HT ;
GRACE, JR ;
ZHU, J .
POWDER TECHNOLOGY, 1995, 82 (03) :239-253
[5]  
Billingham J., 2000, WAVE MOTION
[6]  
Blevins RD., 1986, FLOW INDUCED VIBRATI
[7]   On-line detection of bed fluidity in gas-solid fluidized beds with liquid injection by passive acoustic and vibrometric methods [J].
Book, Garret ;
Albion, Katherine ;
Briens, Lauren ;
Briens, Cedric ;
Berruti, Franco .
POWDER TECHNOLOGY, 2011, 205 (1-3) :126-136
[8]   The uses of passive measurement of acoustic emissions from chemical engineering processes [J].
Boyd, JWR ;
Varley, J .
CHEMICAL ENGINEERING SCIENCE, 2001, 56 (05) :1749-1767
[9]   EVALUATION OF THE SPRAY STABILITY ON LIQUID INJECTION IN GAS-SOLID FLUIDIZED BEDS BY PASSIVE VIBROMETRIC METHODS [J].
Briens, Lauren ;
Book, Garret ;
Albion, Katherine ;
Briens, Cedric ;
Berruti, Franco .
CANADIAN JOURNAL OF CHEMICAL ENGINEERING, 2011, 89 (05) :1217-1227
[10]   Monitoring Fluidized Bed Drying of Pharmaceutical Granules [J].
Briens, Lauren ;
Bojarra, Megan .
AAPS PHARMSCITECH, 2010, 11 (04) :1612-1618