新能源汽车环境影响及能源效率分析

基于国外学者对替代燃料汽车生命周期分析和研究成果,对不同类型新能源汽车的完整生命周期内所产生的排放、能源转化效率及生命周期成本等因素进行了综合分析和比较。结果表明:与传统汽柴油汽车相比,燃气、醇类、电动和混合动力以及燃料电池等新能源汽车在全生命周期内的排放在不同程度上得到了的改善。除醇类汽车外,新能源汽车能源转化效率分别提高6%至121%,而成本则相应增加1.5%至172%。

Environmental Impacts and Energy Efficiency Analysis for New Energy Vehicles

Based on foreign scholar's study results for alternative fuels by the method of life cycle analysis,emissions and energy efficiency as well as life cycle costs through the fuel production chain and over a vehicle lifetime for different kinds of new energy vehicles are analyzed and compared in this paper.The analyses results indicate that comparing with gasoline and diesel vehicles,the emissions of new energy vehicles improved effectively in its full life cycle.Except methanol and ethanol vehicles,the energy efficiencies of new energy vehicles are 6% to 121% higher than conventional vehicles.On the other hand,the life cycle costs increases 1.5% to 172%.