| 火花点火激发均质压燃燃烧过程的模拟研究 |
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| 引用本文： | 王志,阳冬波,帅石金,王建昕.火花点火激发均质压燃燃烧过程的模拟研究[J].工程热物理学报,2010(4). |
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| 作者姓名： | 王志 阳冬波 帅石金 王建昕 |
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| 作者单位： | 清华大学汽车安全与节能国家重点试验室; |
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| 基金项目： | 国家自然科学基金项目(No.50606019) |
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| 摘 要： | 本文对火花点火激发均质压燃SICI燃烧过程进行了建模,利用发动机试验进行了模型验证,模型能较好地描述混合气被点燃压燃的过程。通过三维数值模拟与解析,对比了纯均质压燃HCCI燃烧模式和SICI燃烧模式下的燃烧过程,分析了SICI燃烧的特点。结果表明,SICI燃烧过程中存在多阶段着火,燃烧呈现出顺序放热。SICI燃烧热效率高,NO_x排放低,是一种汽油机有潜力的燃烧方式。
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| 关 键 词： | SICI 数值模拟 化学动力学 |
NUMERICAL STUDY OF SPARK INDUCED CPMPRESSION IGNITION(SICI) |
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| WANG Zhi YANG Dong-Bo SHUAI Shi-Jin WANG Jian-Xin.NUMERICAL STUDY OF SPARK INDUCED CPMPRESSION IGNITION(SICI)[J].Journal of Engineering Thermophysics,2010(4). |
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| Authors: | WANG Zhi YANG Dong-Bo SHUAI Shi-Jin WANG Jian-Xin |
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| Institution: | State Key Laboratory of Automotive Safety and Energy;Tsinghua University;Beijing 100084;China |
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| Abstract: | A 3D engine model coupled with detailed chemical kinetics was setup to simulate the spark induced compression ignition(SICI) combustion.The model was validated by engine experiment and can accurately simulate the SICI combustion process.Comparative researches were conducted between HCCI combustion and SICI combustion.The results show that SICI combustion is multi-stage ignition and sequence heat release.SICI has higher thermal efficiency and lower NO_x emission and is a promising combustion mode. |
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| Keywords: | SICI numerical simulation chemical kinetic |
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