PAPER INDUSTRY, SYSTEM IDENTIFICATION AND MODELING.

The article focuses on system identification and modeling in paper industry. A system identification tool would be useful in the analysis of many human-made and naturally occurring systems. An example of such a human-made system is a common pulp digester found in the pulp and paper industry. A simplified description of a pulp digester is a tank in which wood chips enter the top while the pulp, the raw material of paper, exits the bottom. The system response in this research effort is concerned with the height of the chip mixture in the digester, known as the digester level. It is desired to keep this level as constant as possible.