摘要
通过对比实验研究了增压柴油机燃烧生物柴油和普通柴油对发动机动力性、经济性和排放特性的影响.研究结果表明:对于实验发动机,在对喷油泵不做任何调整时,直接燃烧生物柴油对柴油机动力性的影响小于5%;无论在全负荷还是在部分负荷工况下,燃用生物柴油均能大幅度降低柴油机的排气可见污染物、PT、CO和HC排放,但会引起NOx排放量的上升.通过适当推迟喷油提前角能明显降低燃用生物柴油时发动机的NOx排放,同时还能保留排气可见污染物低、PT、CO和HC排放低的优点,但对发动机动力性的影响却不大.研究表明生物柴油是理想的可再生清洁燃料.
Comparative tests were made on a turbo-charge diesel engine fueled by bio-diesel and ordinary diesel separately in terms of the output power, fuel consumption and emission characteristics. The results show that the influence of bio-diesel fuel on the engine output power is less than 5% when the injection pump is the same without change. The diesel engine exhaust smoke, FT, CO and HC emission could be reduced greatly when bio-diesel fuel is burnt, but the NOx emission could be increased. The shortcoming of the bio-diesel fuel could be overcome through a proper delay of the injecting timing. The bio-diesel fuel is an ideal recycling clean fuel.
出处
《燃烧科学与技术》
EI
CAS
CSCD
2004年第2期125-129,共5页
Journal of Combustion Science and Technology
基金
十五"国家科技攻关计划资助项目(2003BA408B13)
北京理工大学校内基础研究基金资助项目(200303E06).
关键词
生物柴油
排放
替代燃料
Diesel engines
Fuel consumption
Gas emissions
Nitrogen oxides
