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Received: 2001-07-06

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Journal of Zhejiang University SCIENCE A 2002 Vol.3 No.4 P.435-439


Study on the nature of pressure signals in a bubbling fluidized bed

Author(s):  ZHAO Gui-bing, CHEN Ji-zhong, YANG Yong-rong

Affiliation(s):  Department of Chemical & Biochemical Engineering, Zhejiang University, Han gzhou 310027, China

Corresponding email(s): 

Key Words:  Nature, Pressure fluctuation, Deterministic dynamic, Predictability

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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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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.

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