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This paper presented a feasible quantitative method to evaluate carbon emissions of the remanufacturing process of a used vehicle CVT (Continuously Variable Transmission) gearbox. The carbon emission evaluation method is proposed, which is combined with the Hierarchical Relevance Analysis (HRA) theory and the Emission Factor Approach (EFA). In this research, the characteristics of the carbon emissions of remanufacturing process for a used vehicle CVT gearbox are analyzed, various carbon sources on the remanufacturing system are classified and analyzed to define the boundaries of the remanufacturing system, and the correlation matrices among the hierarchical essential factors of carbon emissions are established. Then it combined with EFA to calculate the carbon emissions of each carbon source for the used vehicle CVT remanufacturing process. Finally, the proposed method is experimentally verified by using laser repairing of a used CVT wheel, and the feasibility of new quantitative evaluation method for carbon emissions on the remanufacturing processes is presented. The results show that the carbon emissions of the equipment/device are main contributors of the total carbon emissions of the remanufacturing system. Furthermore, scanning speed of the laser has a significant influence on the carbon emissions of the device and overall carbon emissions of the remanufacturing system.

A Carbon Emission Evaluation Method for Remanufacturing Process of a Used Vehicle CVT Gearbox