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Online Detection of Hydrodynamic Changes in Fluidized Bed using Cross Average Diagonal Line | ||
| Journal of Chemical and Petroleum Engineering | ||
| مقاله 7، دوره 50، شماره 2، اردیبهشت 2017، صفحه 53-60 اصل مقاله (1.36 M) | ||
| نوع مقاله: Original Paper | ||
| شناسه دیجیتال (DOI): 10.22059/jchpe.2017.60505 | ||
| نویسندگان | ||
| Hooman Ziaei-Halimejani؛ Reza Zarghami* ؛ Navid Mostoufi | ||
| Multiphase Systems Research Lab, School of Chemical Engineering, College of Engineering, University of Tehran, P.O. Box 11155/4563, Tehran, Iran. | ||
| چکیده | ||
| Online detection of hydrodynamics of gas-solid fluidized bed was characterized using pressure fluctuations by cross recurrence plot (CRP) and cross recurrence quantification analysis (CRQA). Experiments were conducted in a lab scale fluidized bed of various particle sizes 150 μm, 280 μm and 490 μm at different gas velocities. Firstly, pattern changes of cross recurrence plot were discussed and then reference states was selected. Afterwards, cross average diagonal line (CLave) of other states corresponding to reference states were obtained. It was found that cross average diagonal line of non-normalized data initially decreases and then increases with increasing the gas velocity. When the signal is initially normalized, cross average diagonal line does not change with the superficial gas velocity. It was concluded that cross average diagonal line could be used for detecting small changes of particle size and if a proper reference state is chosen, it can be perceived as a powerful index for detecting changes in the size of particles in a fluidized bed. | ||
| کلیدواژهها | ||
| Cross recurrence quantification analysis؛ Fluidized bed؛ Cross average diagonal line؛ Pressure fluctuations؛ Online detection | ||
| مراجع | ||
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[1] Kunii, D. and Levenspiel, O., (1991). Fluidization Engineering . Butterworth-Heinemann, 2nd ed.
[2] Marwan, N., Romano, M.C., Thiel, M., and Kurths, J., (2007). “Recurrence plots for the analysis of complex systems.” Physics Reports, Vol. 438, pp. 237-329.
[3] van der Schaaf, J., Schouten, J., and van den Bleek, C., (1998). “Origin, propagation and attenuation of pressure waves in gas—solid fluidized beds.” Powder Technology, Vol. 95, pp. 220-233.
[4] Fan, L., Ho, T.C., Hiraoka, S., and Walawender, W., (1981). “Pressure fluctuations in a fluidized bed.” AIChE Journal, Vol. 27, pp. 388-396.
[5] Daw, C.S., Lawkins, W.F., Downing, D.J. and Clapp Jr, N.E., (1991). “Chaotic characteristics of a complex gas-solids flow,” Physical Review A, Vol. 41, p. 1179.
[6] Daw, C. and Halow, J., (1991). “Characterization of void age and pressure signals from fluidized beds using deterministic chaos theory,” Proceed ings of the 11th International Conference on Fluidized Bed Combustion, pp. 777-786.
[7] Fan, L., Kang, Y., Neogi, D. and Yashima, M., (1993). “Fractal analysis of fluidized particle behavior in liquid-solid fluidized beds,” AIChE Journal, Vol. 39, pp. 513-517.
[8] Hay, J., Nelson, B., Briens, C. and Bergougnou, M., (1995). “The calculation of the characteristics of a chaotic attractor in a gas-solid fluidized bed.” Chemical Engineering Science, Vol. 50, pp. 373-380.
[9] Bai, D., Bi, H. and Grace, J., (1997). “Chaotic behavior of fluidized beds based on pressure and voidage fluctuations.” AIChE Journal, Vol. 43, pp. 1357-1361.
[10] Bai, D., Shibuya, E., Nakagawa, N. and Kato, K., (1997). “Fractal characteristics of gas-solids flow in a circulating fluidized bed.” Powder Technology, Vol. 90, pp. 205-212.
[11] van Ommen, J.R., Coppens, M.O., van den Bleek, C. M. and Schouten, J. C., (2000). “Early warning of agglomeration in fluidized beds by attractor comparison.” AIChE Journal, Vol. 46, pp. 2183-2197.
[12] Diks, C., Van Zwet, W., Takens, F. and DeGoede, J., (1996). “Detecting differences between delay vector distributions.” Physical Review E, Vol. 53, p. 2169.
[13] Schouten, J.C. and van den Bleek, C.M., (1998). “Moni toring the quality of fluidization using the short-term predictability of pressure fluctuations.” AIChE Journal, Vol. 44, p. 48-60.
[14] Zarghami, R., Mostoufi, N. and Sotudeh-Gharebagh, R., (2008). “Nonlinear characterization of pressure fluctuations in fluidized beds.” Industrial & Engineering Chemistry Research, Vol. 47, pp. 9497-9507.
[15] Eckmann, J.P., Kamphorst, S.O. and Ruelle, D., (1987). “Recurrence plots of dynamical systems.” Eu rophysics Letters, Vol. 4, pp. 973-977.
[16] Babaei, B., Zarghami, R., Sedighikamal, H., Sotudeh-Gharebagh, R. and Mostoufi, N., (2012). “Investigat ing the hydrodynamics of gas–solid bubbling fluidization using recurrence plot.” Advanced Powder Technology, Vol. 23, pp. 380-386.
[17] Babaei, B., Zarghami, R. and Sotudeh-Gharebagh, R., (2013). “Monitoring of fluidized beds hydrody namics using recurrence quantification analysis.” AIChE Journal, Vol. 59, pp. 399-406.
[18] Sedighikamal, H. and Zarghami, R., (2013). “Dynamic characteristics of bubbling fluidization through recurrence rate analysis of pressure fluctuations.” Particuology, Vol. 11, pp. 282-287.
[19] Tahmasebpour, M., Zarghami, R., Sotudeh-Gharebagh, R. and Mostoufi, N., (2013). “Characterization of various structures in gas-solid fluidized beds by recurrence quantification analysis.” Particuology, Vol. 11, pp. 647-656.
[20] Marwan, N. and Kurths, J., (2002). “Nonlinear analysis of bivariate data with cross recurrence plots.” Physics Letters A, Vol. 302, pp. 299-307.
[21] March, T., Chapman, S. and Dendy, R., (2005). “Recur rence plot Statistics and the effect of embed ding.” Physica D: Nonlinear Phenomena, Vol. 200, pp. 171-184.
[22] Thiel, M., Romano, M.C. and Kurths, J., (2004). “How much information is contained in a recur rence plot?.” Physics Letters A, Vol. 330, pp. 343-349.
[23] Johnsson, F., Zijerveld, R., Schouten, J., van den Bleek, C. and Leckner, B., (2000). “Characterization of flu idization regimes by time-series analysis of pressure fluctuations,” International Journal of Multiphase Flow, Vol. 26, pp. 663-715.
[24] vander Stappen, M.L.M., (1996). Chaotic hydrody namics of fluidized beds. Ph.d Thesis, Delft University of Technology.
[25] Wen, C. and Yu, Y., (1966). “A Generalized method for predicting the minimum fluidization velocity.” AIChE Journal, Vol. 12, pp. 610-612.
[26] Schinkel, S., Dimigen, O. and Marwan, N., (2008). “Selection of recurrence threshold for signal detection.” The European Physical Journal Special Topics, Vol. 164, pp. 45-53.
[27] Babaei, B., Zarghami, R., Sedighikamal, H., Sotudeh-Gharebagh, R. and Mostoufi, N., (2014). “Selec tion of minimal length of line in recurrence quantification analysis.” Physica A: Statistical Mechanics and its Applications, Vol. 395, pp. 112-120.
[28] Webber Jr, C.L. and Zbilut, J.P., (2005). “Recurrence quantification analysis of nonlinear dynamical systems.” Tutorials in Contemporary Nonlinear Methods for the Behavioral Sciences, pp. 26-94. | ||
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