摘要
为研究不同柴油燃料对发动机燃烧和排放特性的影响,选取国Ⅱ~国Ⅴ不同标准柴油及加油站购得的4种国Ⅳ、国Ⅴ标准柴油,在一台满足国Ⅳ排放法规的电控高压共轨柴油机上开展实验研究.结果表明,市售满足国Ⅳ、国Ⅴ标准柴油对满足国Ⅳ排放标准的柴油机有效燃油消耗率(BSFC)影响差异在2%,以内,NO_x排放加权值差异在10%,以内,HC、CO排放差异在20%,以内,碳烟排放整体很低.燃用国Ⅱ~国Ⅴ这4种不同标准的柴油后,共轨柴油机外特性转矩及功率差异在2.4%,以内,在欧洲稳态测试循环(ESC)工况下燃油消耗率差异小于2%,;在不同转速和负荷下,随着燃料十六烷值的降低,NO_x排放略有增大,燃用4种不同标准的柴油后,ESC循环NO_x排放加权结果变化在7%,以内;4种燃油对国Ⅳ排放共轨柴油机动力性、经济性影响很小,燃用不同燃料时碳烟、HC和CO排放均低于国Ⅳ排放限值.
To investigate the effect of various standard fuels on the performance and emissions of diesel engines,four standard fuels(StateⅡ-stateⅤ)and four standard fuels(StateⅣ/Ⅴ)derived from filling stations were chosento run on a diesel engine equipped with a common rail fuel injection system.Results show that the four standardfuels(StateⅣ/Ⅴ)derived from filling stations can affect break specific fuel consumption(BSFC)within2%,,break specific NOx emissions within10%,,and HC and CO emissions within20%,,and their soot emissions arevery low.For the common rail diesel engine,the difference in full load power and torque is2.4%,when using thefour StateⅡ-Ⅴdiesel fuels,the fuel consumption difference is less than2%,at ESC test cycle,the NOx emissionsincrease slightly with the use of lower cetane number fuels under different rotational speeds and loads,andthe break specific NOx emissions change within7%,.The four fuels have little effect on the performance and fueleconomy common rail diesel engine,and their soot,HC and CO emissions are all below the nationalⅣemissionlimit.
作者
郭银飞
董芳
杨勇
张凤泉
刘馨璐
刘海峰
尧命发
Guo Yinfei;Dong Fang;Yang Yong;Zhang Fengquan;Liu Xinlu;Liu Haifeng;Yao Mingfa(State Key Laboratory of Engines,Tianjin University,Tianjin 300072,China;SINOPEC Sales Petroleum Products Technique Research Institute,Tianjin 300384,China)
出处
《燃烧科学与技术》
EI
CAS
CSCD
北大核心
2017年第1期81-89,共9页
Journal of Combustion Science and Technology
关键词
柴油
燃烧
动力性
燃油经济性
排放
diesel fuel
combustion
power
fuel economy
emissions
