A GHG emissions analysis method for product remanufacturing: A case study on a diesel engine.

Abstract Environmental change has become the most serious global problem in recent years. The increased greenhouse gas (GHG) emission is one of the consequences of environmental change. Remanufacturing of waste products constitutes a good production practice destined for environment protection. Nevertheless, GHG emissions are inevitably generated in the remanufacturing process. This study provides an insight into the characteristics of GHG emissions associated with product remanufacturing and presents a new analysis method for GHG emissions based on the Petri net, thus introducing a new theoretical concept for cleaner production of used products. In this method, the boundary of the GHG emission for product remanufacturing is defined, the dynamic characteristics of GHG emissions are analyzed, and the GHG emission analysis model is set up based on the Petri net. Based on this method, the GHG emissions in each remanufacturing process can be quantitatively analyzed. Accordingly, suggestions for energy conservation and GHG emission reduction are proposed. A WD615.87 diesel engine remanufacturing paradigm is presented as a case study throughout the text, whereby elicited results showed that the proposed method is effective in the analysis of GHG emissions for product remanufacturing. Highlights • A GHG emissions analysis method for product remanufacturing based on Petri net is proposed. • The system boundary of GHG emission for product remanufacturing is determined. • The dynamical characteristics of GHG emissions for products remanufacturing are analyzed. • GHG emissions in different remanufacturing process are analyzed quantitatively based on two types of GHG emission source. [ABSTRACT FROM AUTHOR]