Combustion and Hydrocarbon (HC) Emissions from a Spark-Ignition Engine Fueled with Gasoline and Methanol during Cold Start
Combustion and Hydrocarbon (HC) Emissions from a Spark-Ignition Engine Fueled with Gasoline and Methanol during Cold Start
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DOI：
10.1021/ef900502e
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发表时间：
2009-09
期刊：
影响因子：
5.3
通讯作者：
Jun Li;Changming Gong;Bo Liu;Yan Su;H. Dou;Xunjun Liu
中科院分区：
文献类型：
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作者：
Jun Li;Changming Gong;Bo Liu;Yan Su;H. Dou;Xunjun Liu
采用单循环喷油策略，研究了环境温度和循环喷油量对电控进气道喷射火花点火（SI）发动机分别燃用汽油和甲醇的冷起动着火特性以及冷起动过程中燃烧和碳氢化合物（HC）排放的影响。结果表明，循环喷油量对汽油发动机冷起动可靠性有显著影响。每个循环喷射适量的燃料可确保汽油燃料发动机的可靠启动。环境温度对甲醇发动机冷起动性能的影响最大，其次是循环喷射量。当环境温度低于16 °C时，即使在低喷射压力下大量喷射甲醇，甲醇燃料发动机在没有辅助起动辅助的情况下也不能可靠地起动。用的是...
The effects of the ambient temperature and the amount of fuel injected per cycle on the cold-start firing behavior as well as the combustion and the hydrocarbon (HC) emissions of an electronically controlled inlet port injection spark-ignition (SI) engine fueled with gasoline and methanol, respectively, during the cold start were studied experimentally by means of a single-cycle fuel injection strategy. The results showed that the amount of fuel injected per cycle significantly affects the gasoline-fueled engine cold-start reliability. A proper amount of fuel injected per cycle ensures a reliable start of the gasoline-fueled engine. The ambient temperature affects most significantly the cold-start ability of the methanol-fueled engine, and the amount of methanol injected per cycle takes second place. With the ambient temperature below 16 °C, the methanol-fueled engine cannot be started reliably without auxiliary start aid even with a large amount of methanol injection under low injection pressure. Using a...