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Multi-Criteria Optimization of Pressure Screen Systems in Paper Recycling — Balancing Quality, Yield, Energy Consumption and System Complexity

Müller, T. M. and Altherr, L. C. and Ahola, Marja Birgit and Schabel, Samuel and Pelz, P. F.
Multi-Criteria Optimization of Pressure Screen Systems in Paper Recycling — Balancing Quality, Yield, Energy Consumption and System Complexity.
In: EngOpt 2018 Proceedings of the 6th International Conference on Engineering Optimization, Springer International Publishing, pp. 1216-1228, DOI: 10.1007/978-3-319-97773-7_105,
[Online-Edition: http://wl.fst.tu-darmstadt.de/wl/publications/paper_190701_E...],
[Article]

Abstract

The paper industry is the industry with the third highest energy consumption in the European Union. Using recycled paper instead of fresh fibers for papermaking is less energy consuming and saves resources. However, adhesive contaminants in recycled paper are particularly problematic since they reduce the quality of the resulting paper-product. To remove as many contaminants and at the same time obtain as many valuable fibres as possible, fine screening systems, consisting of multiple interconnected pressure screens, are used. Choosing the best configuration is a non-trivial task: The screens can be interconnected in several ways, and suitable screen designs as well as operational parameters have to be selected. Additionally, one has to face conflicting objectives. In this paper, we present an approach for the multi-criteria optimization of pressure screen systems based on Mixed-Integer Nonlinear Programming. We specifically focus on a clear representation of the trade-off between different objectives.

Item Type: Article
Erschienen: 2019
Editors: Rodrigues, H.C. and Herskovits, J. and Mota Soares, C.M. and Araújo, A.L. and Guedes, J.M. and Folgado, J.O. and Moleiro, F. and Madeira, J. F. A.
Creators: Müller, T. M. and Altherr, L. C. and Ahola, Marja Birgit and Schabel, Samuel and Pelz, P. F.
Title: Multi-Criteria Optimization of Pressure Screen Systems in Paper Recycling — Balancing Quality, Yield, Energy Consumption and System Complexity
Language: English
Abstract:

The paper industry is the industry with the third highest energy consumption in the European Union. Using recycled paper instead of fresh fibers for papermaking is less energy consuming and saves resources. However, adhesive contaminants in recycled paper are particularly problematic since they reduce the quality of the resulting paper-product. To remove as many contaminants and at the same time obtain as many valuable fibres as possible, fine screening systems, consisting of multiple interconnected pressure screens, are used. Choosing the best configuration is a non-trivial task: The screens can be interconnected in several ways, and suitable screen designs as well as operational parameters have to be selected. Additionally, one has to face conflicting objectives. In this paper, we present an approach for the multi-criteria optimization of pressure screen systems based on Mixed-Integer Nonlinear Programming. We specifically focus on a clear representation of the trade-off between different objectives.

Journal or Publication Title: EngOpt 2018 Proceedings of the 6th International Conference on Engineering Optimization
Place of Publication: Cham
Publisher: Springer International Publishing
ISBN: 978-3-319-97773-7
Divisions: 16 Department of Mechanical Engineering
16 Department of Mechanical Engineering > Institute for Fluid Systems (FST)
Event Title: EngOpt 2018 Proceedings of the 6th International Conference on Engineering Optimization
Event Location: Cham
Date Deposited: 02 Jul 2019 09:26
DOI: 10.1007/978-3-319-97773-7_105
Official URL: http://wl.fst.tu-darmstadt.de/wl/publications/paper_190701_E...
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