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CLC number: TQ051.13
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Received: 2001-07-06
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Study on the nature of pressure signals in a bubbling fluidized bed
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ZHAO Gui-bing, CHEN Ji-zhong, YANG Yong-rong. Study on the nature of pressure signals in a bubbling fluidized bed[J]. Journal of Zhejiang University Science A, 2002, 3(4): 435-439.
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author="ZHAO Gui-bing, CHEN Ji-zhong, YANG Yong-rong",
journal="Journal of Zhejiang University Science A",
volume="3",
number="4",
pages="435-439",
year="2002",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2002.0435"
}
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A1 - CHEN Ji-zhong
A1 - YANG Yong-rong
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DOI - 10.1631/jzus.2002.0435
Abstract: In this study on the nature of pressure signals generated by a deterministic or stochastic process in a bubbling fluidized bed, pressure fluctuation measurements were carried out in a 300-mm-diamet column at 0.090 m and 0.40 m above the distributor for different gas velocities. The method of detecting deterministic dynamic underlying pressure signals is proposed on the basis of predictability of pressure fluctuations. The deterministic nature of dynamics in fluidizing system was verified. The deterministic level of dynamics in fluidizing system was analyzed for different locations of pressure measurements and different gas velocities.
[1] Bai, D., Bi, H. T., Grace, J. R.,1997. Chaotic behavior of fluidized beds based on pressure and voidage fluctuations, AIChE J., 43, 1357-1361.
[2] Bouillard, J. X., Miller, A. L.,1994. Experimental investigations of chaotic hydrodynamic attractors in circulating fluidized beds. Powder Technology, 79: 211-215.
[3] Cai, P., Wang, Z. W., Jin, Y., 1988. An analyzing system of zoom power spectrum for pressure signals in gas-solid fluidized beds. Engineering Chemistry & Metal lurgy, 9(1): 15-21(in Chinese).
[4] Daw, C. S., Lawkins, W. F., Downing, D. J., Clapp, Jr., N. E.,1990. Chaotic characteristics of a complex gas-solid flow. Phys. Rev. A, 41(2): 1179-1181.
[5] Eckmann, J. P., Kamphorst, S. O., Ruelle, D., Ciliberto, S.,1986. Liapunov exponents from time series. Phys. Rev. A, 34(6): 4971-4979.
[6] Fan, L. T., Neogi, D., Yashima, M., Nassar, R.,1990. "Stochastic analysis of a three-phase fluidized bed: fractal approach", AIChE J., 36, 1529-1535.
[7] Grassberger, P., Procaccia, I.,1983. Characterization of strange attractors. Phys. Rev. Lett., 50(5): 346-349.
[8] Karamavruc, A. I., Clark, N. N.,1997. Local differential pressure analysis in a slugging bed using deterministic chaos theory. Chem. Eng. Sci., 52, 357-370.
[9] Kaplan, D. T., Glass, L.,1992. Direct test for determinism in a time series. Phys. Rev. Lett., 68(4), 427-430.
[10] Kaplan, D., Glass, L.,1995. Understanding Nonlinear Dynamics, Springer-Verlag, New York.
[11] Takens, F. Lecture,1981. Notes in mathematics, springer-verlag. 898: 366-381.
[12] Verloop, J., Heertjes, P. M.,1974. Periodic pressure fluctuations in fluidized beds, Chem. Eng. Sci., 29: 1035-1042.
[13] Vanden Bleek, C. M., Schouten, J. C.,1993. Deterministic chaos: a new tool in fluidized bed design and operation. Chem. Eng. J., 53, 75-87.
[14] Zhao, G. B., Shi, Y. F., Yu, H. R.,2000. Chaos prediction of pressure fluctuation in fluidized bed. Journal of Chemical Industry and Engineering, 51(5), 660-665(in Chinese).
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