COMBINING PROCESS SELECTION AND LOT SIZING MODELS FOR PRODUCTION SCHEDULING OF ELECTROFUSED GRAINS

José Roberto Dale Luche (), Reinaldo Morabito () and Vitória Pureza ()
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José Roberto Dale Luche: Department of Production Engineering, Universidade Federal de São Carlos, Brazil, 13565-905, São Carlos, SP, Brazil
Reinaldo Morabito: Department of Production Engineering, Universidade Federal de São Carlos, Brazil, 13565-905, São Carlos, SP, Brazil
Vitória Pureza: Department of Production Engineering, Universidade Federal de São Carlos, Brazil, 13565-905, São Carlos, SP, Brazil

Asia-Pacific Journal of Operational Research (APJOR), 2009, vol. 26, issue 03, 421-443

Abstract: This work presents an optimization model to support decisions in the production planning and control of the electrofused grain industry. A case study was carried out in a Brazilian company with the aim of helping to increase productivity and improve customer service concerning meeting deadlines. A mixed integer linear programming model combining known models of process selection and single-stage lot sizing were applied to the production scheduling of electrofused grains. Optimizing this scheduling is not a simple task mainly because of the scale of the equipment setup times, the diversity of the products and the deadlines of the order due dates. A constructive heuristic is also proposed as an alternative solution method, particularly for large-sized instances. The results show that the model and the heuristic can produce better solutions than the ones currently used by the company.

Keywords: Production scheduling; process selection; lot sizing; electrofused grains (search for similar items in EconPapers)
Date: 2009
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Citations: View citations in EconPapers (5)

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DOI: 10.1142/S0217595909002286

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