Numerical Simulations of TWC Light Off Characteristics Based on Amesim
Numerical Simulations of TWC Light Off Characteristics Based on Amesim
复制标题
基于Amesim的TWC起燃特性数值模拟
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
D. Hu
中科院分区：
文献类型：
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作者：
Zhuang Wu;G. Feng;Hong Chen;D. Hu
利用AMESim软件建立三元催化转化器（TWC）物理模型，通过数值求解气固两相的能量和质量守恒方程，研究TWC的起燃特性。得到了不同参数下CO、未燃碳氢化合物（CaHb）和氮氧化物（NOx）的排放转化率曲线。结果表明，发动机控制策略、三元催化器的布置及其结构都是三元催化器起燃特性的影响因素，为三元催化器的设计提供了理论依据。
Using AMESim to build a three-way catalytic converter （TWC） physical model to study the light off characteristics, through numerical solution of the energy and mass conservation quations of gas-solid two phase. This paper obtains the emissions conversion rate curve, such as CO, unburned hydrocarbons (CaHb) and nitrogen oxides (NOx) under different parameters. The results show that, the engine control strategy, allocation of TWC and it’s structure are all the TWC light off characteristics effects, which provids the theory basis for the TWC designers.