| 三元催化转化器转化效率影响因素分析 |
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| 引用本文： | 孔祥华.三元催化转化器转化效率影响因素分析[J].科学技术与工程,2011,11(35):8726-8730. |
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| 作者姓名： | 孔祥华 |
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| 作者单位： | 宝鸡文理学院,陕西省灾害监测与机理模拟重点实验室,宝鸡721013 |
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| 基金项目： | 宝鸡文理学院级重点项目 |
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| 摘 要： | 针对三元催化转化器的起燃特性,建立转化器的数学模型.给出数值求解方法,讨论了在起燃阶段,进气性质、氢气、孔密度和空速等因素对转化效率的影响.结果表明,增加进气温度,增大孔密度,可缩短起燃时间,提高转化率;适当增大空速有利于提高转化率.
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| 关 键 词： | 催化转化器 数学模型 转化效率 影响因素 |
| 收稿时间： | 9/16/2011 2:22:45 PM |
| 修稿时间： | 10/9/2011 2:57:40 PM |
Influencing factors Analysis of conversion efficiency of three-way catalytic converter |
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| kongxianghua.Influencing factors Analysis of conversion efficiency of three-way catalytic converter[J].Science Technology and Engineering,2011,11(35):8726-8730. |
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| Authors: | kongxianghua |
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| Institution: | (The Key Lab.Disaster Survey & Mechanism Simulation of Shaanxi Baoji University of Arts and Sciences,Baoji 721013,P.R.China) |
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| Abstract: | According to the light-off behavior of three-way catalyst, the mathematical model has been developed. Mathematical model was solved by finite difference. It was discussed that inlet gas property, hydrogen, cell density and space velocity can affect the converter efficiency in the light-off period. The results show that light-off time can be reduced by increasing inlet gas temperature and cell density. Conversion efficiency also can be improved by increasing space velocity. |
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| Keywords: | Three-way catalyst mathematical model converter efficiency effect factors |
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