国内外燃油品质的对比研究_论文

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1、本科毕业论文题目名称：国内外燃油品质的对比研究学院：专业年级：学生姓名：班级学号：指导教师：二XXX年六月十日摘要摘要随着世界能源的短缺和对环境保护的需要，汽车作为重要的污染源和石油消耗大户受到了广泛的重视。现今汽车的发展对发动机性能要求越来越高，燃油品质对发动机的性能起着至关重要的作用。本文通过对国内外燃油品质进行分析，分析国内燃油与国外燃油在组成成分、使用性能、燃油的生产、保存与运输中的差距，在保证汽车动力性和经济性的同时减少汽车尾气排放所带来的污染，使三者协调发展。为我国燃油品质的提高找到一条较为适合的途径，用以达到提高发动机的使用寿命和

2、转性能指标，符合我国排放法规的需要。关键词国内外燃油品质；对比分析；发动机性能-I-北大学本科毕业论文AbstractAstheenergyshortagesandtheneedforenvironmentalprotectionaroundtheword,asamajorsourceofpollutionandoilconsumption,automobiledrawawiderangeattention.Withthedevelopmentofmodernautomobile,therequirementofengineperformanc

3、eisaskedincreasing,whilehighqualityfuelplaysavitalroleintheengineperformance.Byanalyzingthefuelquality,andthefuelinthefuelcomposition,theuseofperformance,fuelproduction,conservationandtransportationinthegapathomeandabroad.Inordertomakeitcoordinateddevelopment,weshouldmakesur

4、ethatvehicledrivingforceandeconomywillnotbeaffectedandthepollutionresultsfromvehicleexhaustemissionswillbereduced.ItisnecessarytofindamoreappropriatewaytoincreaseenginelifeandtheperformanceindicatorsbyimprovingthefuelqualitytoinlinewithChina'semissionsregulations.Keywords：Do

5、mesticandforeignfuelquality；ComparativeAnalysis；Engineperformance-II-目录目录摘要...........................................................................................................................................IAbstract....................................................

6、...............................................................................II1绪论.......................................................................................................................................21.1课题来源................................................

7、...........................................................................21.2国内外研究概况...............................................................................................................21.2.1国外车用燃油组成及标准现状...........................................................

8、.........................21.2.2国内车用燃油组成及标准现状...............................