CNG双燃料汽车全生命周期评价及敏感性分析  

Life Cycle Assessment and Sensitivity Analysis of CNG Bi-fuel Vehicles

作　　者：刘佳慧 方海峰[2] 陈轶嵩 丁振森 马金秋 LIU Jiahui;FANG Haifeng;CHEN Yisong;DING Zhensen;MA Jinqiu(School of Automobile,Chang’an University,Xi’an 710064,China;China Automotive Technology and Research Center,Tianjin 300300,China)

机构地区：[1]长安大学汽车学院,陕西西安710064 [2]中国汽车技术研究中心,天津300300

出　　处：《机械与电子》2019年第4期3-9,共7页Machinery & Electronics

基　　金：国家自然科学基金(71173072);陕西省自然科学基础研究计划项目(2017JQ7003);中央高校基本科研业务费资助项目(310822171001;310822170661)

摘　　要：运用GaBi软件建立了CNG双燃料乘用车的全生命周期评价模型,从原材料获取、零部件制造、整车组装、使用、维修、运输、回收7个阶段全面阐述了CNG双燃料汽车的节能减排绩效计算方法。以东风雪铁龙品牌经典世嘉2016款车型为例,展开实证计算得出能耗、排放及归一化结果,最后选取压缩天然气和汽油里程比、天然气来源、电力结构3个关键参数进行敏感性分析。结果表明,原材料获取阶段矿产资源消耗最多,使用阶段化石能源消耗最多并且环境影响综合值最大。通过加大天然气使用里程比例、改进天然气开采技术、优化电力结构对使用阶段环境影响综合值均具有显著降低的作用。The life cycle assessment model of CNG bi-fuel passenger vehicles was established by using GaBi software. The calculation method of energy saving and emission reduction performance of CNG bi-fuel vehicle was comprehensively expounded from seven stages: material acquisition, component manufacture, assembly, use phase, repair, transportation and recycle. Taking Dongfeng Citroen Cequature 2016 as an example, the energy consumption, emission and normalization results were calculated obtained. Finally, the sensitivity analysis was conducted by selecting three key parameters: compressed natural gas and gasoline mileage ratio, natural gas source and power structure. The results show that mineral resources consumption is the most in the stage of material production. In the stage of use, fossil energy consumption is the most and the comprehensive value of environmental impact is the largest. By increasing the proportion of natural gas mileage, improving the natural gas exploitation technology and optimizing the power structure can significantly reduce the comprehensive value of environmental impact in the use stage.

关 键 词：CNG双燃料汽车 生命周期评价 GaBi 节能减排绩效 敏感性分析 

分 类 号：U466[机械工程—车辆工程]