稀薄燃烧对汽油/氨和乙醇/氨发动机燃烧及排放的影响
Effects of lean burn on combustion and emission characteristics of the gasoline/ammonia and ethanol/ammonia engine
本文在一台四缸四冲程火花点火发动机中研究了汽油掺氨和乙醇掺氨的燃烧和氮基污染物排放特性。结果表明：相比乙醇，汽油掺氨在发动机动力性和经济性方面更具优势，使用汽油/氨和乙醇/氨的氮基污染物排放规律相近；掺氨导致NOx排放大幅增加，受燃料型NOx温度正相关性、压力负相关影响，在λ = 1.0时NOx随点火提前而降低，而稀燃工况下温度对燃料型NOx的控制力有所增强，在λ = 1.2和1.4时NOx随点火提前而升高；NH3排放受狭隙效应和体积淬熄效应控制…查看全部>>
In this paper, the combustion and nitrogen-based emission characteristics of gasoline/ammonia and ethanol/ammonia were investigated in a four-cylinder, four-stroke spark ignition engine. The results showed that: Gasoline/ammonia is more advantageous than ethanol in terms of engine dynamics and economy; the nitrogen-based emission patterns are similar when the engine is fueled with gasoline/ammonia and ethanol/ammonia. Ammonia blending significantly increase …查看全部>>
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