Title: A three-dimensional method for evaluating the remanufacturability of used engines

Authors: Junli Shi; Tao Li; Zhichao Liu

Addresses: Institute of Sustainable Design and Manufacturing, Dalian University of Technology, Dalian 116024, China; School of Mechanical Engineering and Automation, Dalian Polytechnic University, Dalian 116034, China ' Institute of Sustainable Design and Manufacturing, Dalian University of Technology, Dalian 116024, China ' Institute of Sustainable Design and Manufacturing, Dalian University of Technology, Dalian 116024, China

Abstract: Remanufacturing is considered an outstanding production model. Automobile engines are of great recycling value for remanufacturing, and whether a used engine can be remanufactured depends on its remanufacturability. In this study, a three-dimensional remanufacturability evaluation method for used engines is proposed, which involves the evaluation of technological feasibility, economic feasibility and environmental feasibility. In technological feasibility analysis, seven evaluation indexes are calculated quantitatively. For economic feasibility and environmental feasibility, comparative analysis is conducted for engine remanufacturing and new manufacturing. Furthermore, in environmental feasibility analysis, the life cycle assessment (LCA) methodology is introduced to evaluate the environmental impact. In addition, the weight of each index is determined by the analytic hierarchy process (AHP) method. Finally, to examine the feasibility and validity, the three-dimensional method is applied to evaluate the remanufacturability of a WD 615-87 diesel engine.

Keywords: automobile industry; automotive engines; car engines; remanufacturability; technological feasibility; economic feasibility; environmental feasibility; life cycle assessment; LCA; analytical hierarchy process; AHP; engine remanufacturing; recycling; 3D evaluation.

DOI: 10.1504/IJSM.2015.073838

International Journal of Sustainable Manufacturing, 2015 Vol.3 No.4, pp.363 - 388

Accepted: 05 Oct 2015
Published online: 23 Dec 2015 *

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