A faucet closed-loop supply chain network design considering used faucet exchange plan

Many companies established a closed-loop supply chain to increase their supply chain profit and sustainability. The goal of this study is to design a faucet closed-loop supply chain network, in which forward supply chain is explained is aimed to increase the profit and environmental savings, and used faucet exchange plan is presented in the reverse chain. A mixed integer linear programming model under demand uncertainty is developed. A single-objective, multi-product and multi-period model is proposed for this network. The objective function maximizes the total profit along with optimization of the flow within facilities. Moreover, a fuzzy linear programming and fuzzy stochastic linear programming model describes the proposed network's decisions. Finally, to validate the proposed model, a real case study is performed on Tehrandoosh Company and the model solutions are analyzed. The obtained results show the performance of the presented network. In which, considering the exchange plan would lead to 58 percent increase in the total profit of the supply chain. Furthermore, this study provided efficient and reliable managerial solutions for the faucet industry decision makers. (C) 2019 Elsevier Ltd. All rights reserved.