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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2002, Vol. 3 Issue (4): 435-439    DOI: 10.1631/jzus.2002.0435
Industrial Control Technology     
Study on the nature of pressure signals in a bubbling fluidized bed
ZHAO Gui-bing, CHEN Ji-zhong, YANG Yong-rong
Department of Chemical & Biochemical Engineering, Zhejiang University, Han gzhou 310027, China
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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.

Key words： Nature      Pressure fluctuation      Deterministic dynamic      Predictability     
Received: 06 July 2001     
CLC:  TQ051.13  
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ZHAO Gui-bing
CHEN Ji-zhong
YANG Yong-rong
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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. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2002, 3(4): 435-439.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2002.0435     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2002/V3/I4/435

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