Isabel Gomes
Associate Professor, Department of Mathematics
Faculdade de Ciências e Tecnologia, Monte da Caparica, 2829-516 Caparica Tel: (+351)212948388 ext. 10830 (email)
A Two-Stage Stochastic Model for the Design and Planning of a Multi-Product Closed Loop Supply Chains
- Citation:
- Baptista, Susana, Maria Isabel Gomes, and Ana Paula Barbosa-povoa. "A Two-Stage Stochastic Model for the Design and Planning of a Multi-Product Closed Loop Supply Chains." In 22nd European Symposium on Computer Aided Process Engineering, edited by Ian David Lockhart Bogle and Michael Fairweather, 412-416. Vol. 30. Computer Aided Chemical Engineering 30. London: Elsevier, 2012.
Abstract:
In this paper we address the problem of uncertainty in the design and planning of a multi-period, multi-product closed loop supply chain, where the recovered products are end-of-life products that are disassembled and recycled. Uncertainty is explicitly modelled by considering customers’ demands and returns to be stochastic. A two–stage model is developed where first stage decisions concern the facility location while second stage decisions are the production planning of the supply chain. The integer L- shaped method was adopted as the solution tool and computational tests were performed on multi-period and multi-commodity networks randomly generated based on a reference case. A comparison between the proposed solution method and the straight use of the CPLEX is performed.
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