Discussion on the Calculation Method for Carbon Emission of Railway Wagons in the Context of Carbon Peaking and Carbon Neutrality
The calculation of carbon emission for railway wagons is an important step of CRRC railway wagon enterprises to respond to the development strategy of"30·60"carbon peaking and carbon neutrality of the state and help to achieve the goal of"35·50"carbon neutrality of CRRC.It allows to understand in depth the carbon emission situation of railway wagons,provide data support for carbon emission management and decision-making so as to take more reasonable methods and measures for reducing carbon emission.The article firstly determines the calculation boundary of carbon footprint which includes four stages of raw material acquisition,production and manufacturing,operation management,scraping and recovery according to the characteristics of railway wagon products;secondly,on the basis of analyzing the carbon calculation content of each stage,it classifies the carbon emissions of railway wagons in three types:carbon emission of material,carbon emission of energy and carbon emission of process and elaborates in details the calculation method and the data quality requirement for these three types of carbon emission;finally,it takes the X70 flat car for containers for example to make calculation of carbon emission of railway wagons and analysis of results.The study shows:a typical railway wagon product such as X70 flat car for containers emits totally 72 636.5 kgCO2e in its life cycle;the steels in main materials,the water paint in auxiliary materials and the electricity in energies are the most important sources of carbon emission and thus play a controlling role in carbon emission;the raw material acquisition is the stage where the most CO2 is emitted among the 4 stages and play a decisive role in carbon emission.
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