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Scheduling in the FMCG industry / Martijn A. H. van Elzakker in Industrial & engineering chemistry research, Vol. 51 N° 22 (Juin 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 22 (Juin 2012) . - pp. 7800–7815 Titre : Scheduling in the FMCG industry : An industrial case study Type de document : texte imprimé Auteurs : Martijn A. H. van Elzakker, Auteur ; Edwin Zondervan, Auteur ; Neha B. Raikar, Auteur Année de publication : 2012 Article en page(s) : pp. 7800–7815 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Scheduling  Industry Résumé : A problem-specific model is presented for the short-term scheduling problem in the Fast Moving Consumer Goods (FMCG) industry. To increase the computational efficiency, the limited intermediate inventory is modeled indirectly by relating mixing and packing intervals. In addition, the model size is reduced by exploiting the process characteristics by dedicating time intervals to product types. The efficiency and flexibility of the formulation is demonstrated using ten examples based on an ice cream scheduling case study. The examples contain 62–73 batches of 8 products that must be produced within a 120-h horizon. All cases can be solved to optimality within 170 s. The addition of a periodic cleaning requirement on the mixing lines significantly increases the complexity of the problem. An algorithm is proposed that solves to optimality within half an hour 9 out of 10 cases with periodic cleaning. For the 10th case the makespan obtained was 0.6% higher than the theoretical minimum makespan. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie202106k [article] Scheduling in the FMCG industry : An industrial case study [texte imprimé] / Martijn A. H. van Elzakker, Auteur ; Edwin Zondervan, Auteur ; Neha B. Raikar, Auteur . - 2012 . - pp. 7800–7815. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 22 (Juin 2012) . - pp. 7800–7815 Mots-clés : Scheduling  Industry Résumé : A problem-specific model is presented for the short-term scheduling problem in the Fast Moving Consumer Goods (FMCG) industry. To increase the computational efficiency, the limited intermediate inventory is modeled indirectly by relating mixing and packing intervals. In addition, the model size is reduced by exploiting the process characteristics by dedicating time intervals to product types. The efficiency and flexibility of the formulation is demonstrated using ten examples based on an ice cream scheduling case study. The examples contain 62–73 batches of 8 products that must be produced within a 120-h horizon. All cases can be solved to optimality within 170 s. The addition of a periodic cleaning requirement on the mixing lines significantly increases the complexity of the problem. An algorithm is proposed that solves to optimality within half an hour 9 out of 10 cases with periodic cleaning. For the 10th case the makespan obtained was 0.6% higher than the theoretical minimum makespan. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie202106k