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将棕榈油的提取物作为添加剂,分别以0.2%,0.4%和0.6%的体积比例加入基础汽油(辛烷值93的市售汽油)、已知成分汽油、乙醇汽油和甲醇汽油中,采用城市路况车用典型发动机转速2000r/min负荷特性下的台架试验,并对基础汽油中添加0.6%的添加剂油品进行道路试验,对加剂前后的汽油机燃油经济性和排放性进行了比较分析.结果表明:对于基础油和已知成分汽油,分别添加0.4%和0.2%比例的添加剂,其节油效果最大分别达到8.1%和10.2%;醇类汽油燃油消耗率高于纯汽油,E10和M10汽油分别比基础油的质量燃油消耗率高出3.1%和3.9%;在0.6%的添加比例下,M10和M20汽油燃油消耗率平均降低约为3.7%;道路试验平均节油约7.0%.同时通过定容燃烧弹、缸内燃烧过程分析、同步辐射以及高温摩擦试验等手段,从燃烧特性和摩擦学的角度初步探讨了这种生物基添加剂的节油机理.试验结果反映使用添加剂后可以提高最大缸内压力和增大燃烧放热率、改善排放,并且能够大幅度的降低摩擦系数.
The extract of palm oil as an additive, were added 0.2%, 0.4% and 0.6% by volume of the base gasoline (octane 93 commercially available gasoline), known components of gasoline, ethanol gasoline and methanol gasoline, using the city Road vehicles with a typical engine speed of 2000r / min load characteristics of the bench test, and add 0.6% of the base gasoline oil additives for road tests before and after the gasoline engine fuel economy and emissions were compared. The results showed that the fuel efficiency of alcohol-based gasoline was 8.1% and 10.2%, respectively, when the additives were added at 0.4% and 0.2%, respectively. The consumption of alcohol-based gasoline was higher than that of pure gasoline, E10 and M10 Gasoline and gasoline respectively increased by 3.1% and 3.9% respectively over the base oil; at 0.6%, the average fuel consumption of M10 and M20 petrol was reduced by about 3.7%; road test averaged about 7.0% By means of constant volume combustion bomb, in-cylinder combustion process analysis, synchrotron radiation and high temperature friction test, the fuel saving mechanism of this bio-based additive was preliminarily discussed from the aspects of combustion characteristics and tribology. After the agent may increase the maximum cylinder pressure and heat release rate increase, improve emissions, and can greatly reduce the friction coefficient.