Technical Note: Combustion characteristics and hydrocarbon emissions of a spark ignition engine fuelled with gasoline-oxygenate blends
Technical Note: Combustion characteristics and hydrocarbon emissions of a spark ignition engine fuelled with gasoline-oxygenate blends
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DOI：
10.1243/0954407001527466
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发表时间：
2000-03
期刊：
影响因子：
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通讯作者：
Z. Huang;H. Miao;L. Zhou;D. Jiang
中科院分区：
文献类型：
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作者：
Z. Huang;H. Miao;L. Zhou;D. Jiang
研究了含氧混合燃料火花点火发动机的燃烧特性和碳氢化合物排放，分析了燃烧质量分数和发动机碳氢化合物排放。根据记录的压力图计算结果表明，与汽油相比，汽油-醚混合物的火焰发展和快速燃烧角普遍减小，最大气缸压力增大。汽油中醇类燃料掺量小时火焰发展角和快速燃烧角减小，醇类燃料掺量大时火焰发展角和快速燃烧角增大。实验结果表明，在汽油中掺入含氧燃料可以减少发动机废气碳氢化合物的排放，而不是使用纯汽油。使用汽油-醚混合燃料，而不是汽油-酒精混合燃料和纯汽油，大大减少了碳氢化合物的排放。
Abstract Combustion characteristics and hydrocarbon emissions in a spark ignition engine operating on oxygenated fuel blends are studied, and the mass fraction burned and engine hydrocarbon emissions are analysed. Calculation results, based on the recorded pressure diagram, show that the flame development and rapid burn angles of gasoline-ether blends generally decrease and the maximum cylinder pressure increases as compared with those of gasoline. The flame development angle and rapid burn angle decrease when the fraction of alcohol fuels in gasoline is small, whereas they increase when the fraction of alcohol fuels is large. The experimental results show that engine exhaust hydrocarbon emissions can be reduced by blending oxygenated fuels in gasoline rather than operating on neat gasoline. Operating on gasoline-ether blends rather than on gasoline-alcohol fuel blends and neat gasoline greatly reduces hydrocarbon emissions.