Title: Double-supplier reverse logistics system that considers shortages and quality uncertainty of recycled products
Authors: Yufang Chiu; Chi-Chung Chiang; Ling-Huey Su; Yung-Shao Chen
Addresses: Department of Industrial and Systems Engineering, Chung Yuan Christian University, 200 Chung Pei Rd., Chung-Li, 320, Taiwan ' Department of Industrial and Systems Engineering, Chung Yuan Christian University, 200 Chung Pei Rd., Chung-Li, 320, Taiwan ' Department of Industrial and Systems Engineering, Chung Yuan Christian University, 200 Chung Pei Rd., Chung-Li, 320, Taiwan ' Department of Manufacturing Quality Assurance, Advantech Co., 7F, No.1, Lane 169, Kang-Ning Street, Shejr City, Taipei, 221, Taiwan
Abstract: As concerns over the environment increase, many companies have started to consider waste reduction, to which end the production of recyclable and reusable items, as well as product recovery, are crucial. Since the literature on inventory management with return flows seldom discusses shortages and uncertainties in the quality of recycled products, this study develops a model of reverse logistics that considers shortages and provides a means of preventing them. The proposed model includes a complete inspection to reduce uncertainty in the quality of recycled products, making the model more realistic. Backorders, inventory levels of returned items and the number of orders for newly procured items are determined and the effects of the parameters on the optimal solution are observed by performing a sensitivity analysis.
Keywords: reverse logistics; economic order quantity; shortage; defect rate.
DOI: 10.1504/IJISE.2017.085209
International Journal of Industrial and Systems Engineering, 2017 Vol.26 No.4, pp.487 - 507
Received: 31 Mar 2015
Accepted: 13 Jul 2015
Published online: 17 Jul 2017 *