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Online decision support and optimization for kraft paper production
Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering, Physics and Mathematics.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering, Physics and Mathematics.
Responsible organisation
2006 (English)In: Control systems 2006 : Measurement and control: applications for the operator, Tampere, Finland, 6-8 June 2006, Helsinki: Kopio Niini - Painoporssi, , 2006, 313- p.Conference paper, (Other scientific)
Abstract [en]

The MondiPackaging Dynäs pulp & paper mill in Sweden produces strong sack and kraft paper from chemical softwood pulp. Despite good quality a project was initiated by a need for less variability in paper quality, and less energy consumption. It was known that there is variability in incoming stock, and that the HC and LC refining strategies could be improved. The aim of the project is to reduce energy consumption by 10%, and to reduce quality variation by installing a new online fibre analyzer, PulpEye, and implementing modern modelling and control methodology. We have used multivariate subspace models in combination with optimization to create an OPC based interactive application for on-line operator support and optimization of kraft paper production. The application is now installed and is under evaluation. The specific refiner energy has so far been reduced with at least 25%. The decision support application is indicating even more reduction potential.

Place, publisher, year, edition, pages
Helsinki: Kopio Niini - Painoporssi, , 2006. 313- p.
Keyword [en]
Chemical pulping, Refining, Multivariate modelling, Simulation, Energy control, Quality control, Decision support
National Category
Control Engineering Computer Science Probability Theory and Statistics
Identifiers
URN: urn:nbn:se:miun:diva-3798Local ID: 4159ISBN: 9525183262 (print)OAI: oai:DiVA.org:miun-3798DiVA: diva2:28830
Available from: 2008-09-30 Created: 2008-11-03Bibliographically approved

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Fridén, HåkanNäslund, Henrik
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CiteExportLink to record
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Citation style
  • apa
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  • de-DE
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  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
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  • Other locale
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Output format
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  • asciidoc
  • rtf