Detailed Supply Chain Design Considering Production Campaigns

FUMERO, YANINA; CORSANO, GABRIELA; MONTAGNA, JORGE

SALVADOR DE BAHIA - BRASIL

Congreso; 10th International Symposium on Process Systems Engineering, PSE’09; 2009

Universidad de San Pablo (Brasil)

Until now, supply chain (SC) design models have been mainly focused on SC integration, where nodes allocation and links among them are selected in order to allow an efficient operation of the whole system. Usually, the detailed configuration and operation of the plants have not been taken into account. In this work, a heuristic strategy is presented in order to design the SC, including the structure and the operation of plants with mixed product campaigns. The incorporation of plant design and mixed product campaign in the SC design model leads to a non linear formulation. Hence, a two stages approach is addressed in order to solve this problem through linear models. In the first stage, a SC design standard model is solved in order to obtain the network design with minimum logistic cost and the production of each selected plant. These results are used to estimate the possible campaigns composition for each plant. In the second stage, specific scheduling constraints are incorporated in the plant design model to determine the optimal mixed product campaign configuration and the structure of each plant, minimizing the investment cost. This methodology allows obtaining the SC logistic configuration and, for each selected plant, the optimal mixed production campaign simultaneously with the plant design, in order to meet a specified economic criterion fulfilling demand requirements.