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中文摘要：
在柴油引燃氢气／柴油发动机中，氢气的引入会对氢气／空气混合气氛围中的柴油雾化特性和燃烧特性产生直接的影响，进而对发动机的排放产生影响．应用改进的KIVA．3V程序，对氢气／柴油发动机的N0x和微粒排放特性进行了模拟研究，分析了氢气的引入对氢气／柴油发动机N0。和微粒排放的影响．结果表明：低负荷时，氢气替代部分柴油后，发动机的NOx和微粒排放低于原柴油机；高负荷时，氢气替代部分柴油后，发动机的NOx排放高于原柴油机，但微粒排放大幅度降低；氢气的引入对发动机NOx和微粒的生成时刻和生成速率具有重要的影响．
英文摘要：
Hydrogen addition will influence the characteristics of spray atomization and combustion of diesel oil, and emission characteristics of hydrogen/diesel engine. The modified KIVA-3V codes was used to study the characteristics of NOx and particulate emission of hydrogen/diesel engine and the effect of hydrogen addition on the emissions of NOx and particulates. Results show that at engine low load condition, the NOx and particulate emissions of the hydrogen/diesel engine are lower than those of diesel engine. At high load condition, the NOx emission of the hydrogen/diesel engine is higher than that of diesel engine, but particulate emission reduces significantly. Hydrogen addition has large influence on the formation timing and formation rate of NOx and particulates.
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