| 汽油车三效催化转化器内废气转化率的数值模拟 |
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| 引用本文： | 刘孟祥,钟志华,龚金科,刘湘玲. 汽油车三效催化转化器内废气转化率的数值模拟[J]. 汽车工程, 2007, 29(2): 121-124 |
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| 作者姓名： | 刘孟祥 钟志华 龚金科 刘湘玲 |
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| 作者单位： | 湖南大学,汽车车身先进设计制造国家重点实验室,长沙,410082;湖南大学,汽车车身先进设计制造国家重点实验室,长沙,410082;湖南大学,汽车车身先进设计制造国家重点实验室,长沙,410082;湖南大学,汽车车身先进设计制造国家重点实验室,长沙,410082 |
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| 基金项目： | 面向21世纪教育振兴行动计划(985计划) |
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| 摘 要： | 基于三效催化转化器内十三反应机理的反应速率方程以及气相和固相的质量平衡和能量平衡原理,建立了三效催化转化器的废气转化率数学模型,通过对其进行数值模拟,得到转化率随氧化还原比的变化情况,计算值与实验值吻合良好。研究对提高三效催化转化器转化率具有重要的参考价值。
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| 关 键 词： | 三效催化转化器 转化率 化学反应机理 数值模拟 |
| 修稿时间： | 2005-12-072006-03-27 |
Numerical Simulation on Conversion Rates of Exhaust Gas in the Three-way Catalytic Converter of Gasoline Vehicle |
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| Liu Mengxiang,Zhong Zhihua,Gong Jinke,Liu Xiangling. Numerical Simulation on Conversion Rates of Exhaust Gas in the Three-way Catalytic Converter of Gasoline Vehicle[J]. Automotive Engineering, 2007, 29(2): 121-124 |
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| Authors: | Liu Mengxiang Zhong Zhihua Gong Jinke Liu Xiangling |
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| Abstract: | A mathematics model for conversion rates of exhaust gas in the three-way catalytic converter of a gasoline vehicle is established based on reaction speed equations derived from thirteen chemical reaction mechanisms and mass and energy equilibrium principles for gas phase and solid phase.The numerical simulation indicates that the conversion rates change with the variation of the ratio between oxidation and deoxidization.A good agreement is achieved between simulated results and experimental data. |
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| Keywords: | Three-way catalytic converter Conversion rate Chemical reaction mechanisms Numerical simulation |
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