Research On Low-Carbon Design Method Of Fuel Cell Vehicle Power System

With global warming,the greenhouse effect has become more and more serious,and the emission of carbon dioxide has also received more and more attention.In the face of increasingly severe global warming issues,it has become the consensus of the majority of auto companies to produce more energy-saving and environmentally friendly auto products.At the same time,my country’s manufacturing industry is also facing tremendous pressure on carbon emissions while developing rapidly.The low-carbon design of fuel cell vehicle power system based on life cycle assessment has very important theoretical value for improving material and energy utilization,reducing the total life cycle cost of fuel cell vehicles,and improving the environmental friendliness of fuel cell vehicles.This study summarizes the current research results of automotive product life cycle assessment,energy saving and emission reduction,and life cycle carbon footprint,and establishes the purpose and significance of this article.The fuel cell vehicle power system is selected as the research object,and the life cycle is divided into the raw material acquisition phase,the manufacturing and assembly phase,the packaging and transportation phase,the operation and use phase,and the scrap recycling phase.The fuel cell vehicle power system is further subdivided into fuel cell,storage The five major parts of energy battery,drive motor,high-voltage hydrogen storage bottle and DC/DC converter are used to establish the calculation model of SimaPro9 software.Through literature review,visits and investigations,the required relevant materials,energy,manufacturing process and other data are collected,and the list of consumed mineral resources and fossil energy is obtained,and then the CML-IA baseline V3.05 evaluation method and carbon footprint calculation are used Method IPCC 2013 GWP100 a V1.03 carries on data processing,obtains the environmental impact emission evaluation result through calculation,and then combines the life cycle cost analysis according to the evaluation result,and carries out the low-carbon design of the fuel cell vehicle power system based on the Vague set multi-objective design method Interpretation and comparative analysis of the obtained low-carbon design results,and propose improvement measures to reduce carbon emissions during the life cycle of the fuel cell vehicle power system.Studies have shown that the combined value of fossil energy consumption and environmental emissions in the raw material acquisition phase of the fuel cell vehicle power system is significantly higher than the other four phases of the life cycle(manufacturing and assembly phase,packaging and transportation phase,operation and use phase,and scrap recycling phase).The acquisition phase is accompanied by a large amount of material consumption,which has the largest consumption value of mineral resources.Under different fuel cell and energy storage battery technologies,the fuel cell vehicle power system with alkaline fuel cell matching ternary lithium battery has the lowest resource depletion and environmental impact emissions,so it should be considered first when fuel cell vehicle green design and component matching Secondly,the six low-carbon design schemes of the fuel cell vehicle power system are ranked and optimized based on the life cycle cost analysis.Although the fuel cell vehicle power system scheme 2 has the highest carbon emissions throughout the life cycle,the life cycle cost is relatively It is relatively low,so in consideration of factors such as resource and energy consumption,environmental emissions,and life cycle costs,option two is the best option.Afterwards,they made a comparative analysis and proposed that the structure of my country’s power grid should be reasonably optimized,while reducing the use of metal materials,optimizing the process of metal material recycling and other improvement measures,starting with the production and manufacturing technology of fuel cell vehicle power systems to promote all-round green production This will play a key role in the development of energy-saving and emission reduction in the life cycle of fuel cell vehicles in my country in the future.