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Robust Production Planning and Scheduling of a Pulp Digester and a Paper Machine

Title
Robust Production Planning and Scheduling of a Pulp Digester and a Paper Machine
Type
Article in International Conference Proceedings Book
Year
2014
Conference proceedings International
Pages: 499-504
24th European Symposium on Computer Aided Process Engineering (ESCAPE)
Budapest, HUNGARY, JUN 15-18, 2014
Indexing
Publicação em ISI Web of Knowledge ISI Web of Knowledge - 0 Citations
Publicação em Scopus Scopus - 0 Citations
Scientific classification
FOS: Natural sciences > Computer and information sciences
Other information
Authenticus ID: P-00A-15P
Abstract (EN): Disturbance Management is a major issue in process industries like the pulp and paper (P&P) case and is mostly performed in the execution/control level. That approach is confined to the amendment of plans sent by upper levels and can thus be problematic. This paper moves towards the integration of planning and control, starting from the planning's point of view. The application of Simulation-Optimization (S-O) allows considering uncertainty, but keeping a deterministic tractable optimization model. Indeed, it is the simulation model that incorporates more complex elements such as stochastic variables, as well as integrates (with more or less detail) the execution/control behaviour. In this work, we present a case study of a P&P mill, focusing on the two most critical production resources (the digester and the paper machine). The feedback obtained by simulating their interaction is used to adjust the slacks introduced in the intermediate tank. In this way, we are able to generate plans that are not only optimized concerning company's indicators, but also robust against disturbances.
Language: English
Type (Professor's evaluation): Scientific
Contact: goncalo.figueira@fe.up.pt
No. of pages: 6
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