Identification of channelling and recirculation parameters of agitated pulp stock chests

✍ Scribed by Leonardo C. Kammer; Farhad Ein-Mozaffari; Guy A. Dumont; Chad P.J. Bennington

• Publisher: Elsevier Science
• Year: 2005
• Tongue: English
• Weight: 509 KB
• Volume: 15
• Category: Article
• ISSN: 0959-1524
• DOI: 10.1016/j.jprocont.2004.04.008

✦ Synopsis

This paper describes a mechanism for identifying the dynamics of non-ideal mixing processes. The object is to study two of the non-ideal behaviours of agitated pulp stock chests: recirculation and channelling. An initial continuous-time model, which contains physically relevant parameters, is transformed into its discrete-time counterpart. This transformation introduces some challenging identification problems, as the discrete-time parameters become a non-linear combination of the original continuous-time parameters. A system identification methodology that addresses these challenges is developed and demonstrated by means of computer simulation. The analysis of data collected from experiments on a laboratory scale model of an industrial chest shows the potential of the techniques developed in this paper.