Mathematical simulation of automotive exhaust catalytic converter in exhaust system of cold-start engine

MA Liping; NING Ping; ZHANG Aimin; FENG Quanli; WANG Xueqian

您当前的位置：

首页 >

文章列表页 >

Mathematical simulation of automotive exhaust catalytic converter in exhaust system of cold-start engine

更新时间：2025-12-10

- Mathematical simulation of automotive exhaust catalytic converter in exhaust system of cold-start engine
- CIESC Journal Issue 11, Pages: 2124-2130(2005)
- 作者机构：
  
  1. 昆明理工大学环境科学与工程学院,云南,昆明,650093
  2. 昆明贵金属研究所,云南,昆明,650000
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 November 2005，
  
  Published：25 November 2005
- 稿件说明：
移动端阅览
MA Liping, NING Ping, ZHANG Aimin, et al. Mathematical simulation of automotive exhaust catalytic converter in exhaust system of cold-start engine[J]. CIESC Journal, 2005, (11): 2124-2130.
DOI：

MA Liping, NING Ping, ZHANG Aimin, et al. Mathematical simulation of automotive exhaust catalytic converter in exhaust system of cold-start engine[J]. CIESC Journal, 2005, (11): 2124-2130. DOI：

摘要

发动机冷启动状态汽车尾气的排放情况对尾气排放控制起着关键的作用，建立了发动机冷启动状态排气系统传热、传质的非稳态单通道数学模型，通过对模型的数值求解，分析了汽车尾气排气系统温度、浓度的演变，经与实验结果对比，模型拟和与实验值能很好吻合，所建模型和选择参数正确.模拟了催化器内尾气温度场、浓度场的分布情况，对催化器的研究、设计具有重要意义.

Abstract

The engine emission in the cold-start phase plays an important role in reducing the overall emission in the tailpipe.Simulating cold-start engine behavior is a difficult task as it involves heat transfer processes and chemical reactions at both the exhaust pipe and catalytic converter.This paper presents a mono-channel non-steady model for the heat and mass transfer in the exhaust system of cold-start phase engine，both spatially and temporally. With the aid of numerical calculations

thermal and mass transfer characteristics of the exhaust system were analyzed.The calculation results were in agreement with experiments.The conversions of carbon monoxide

unburned hydrocarbons and nitrogen oxides were supported by the experimental data.The temperature and concentration distributions in the three-way monolithic converter were also discussed

which are necessary for the research and design of converter.

关键词

Keywords

references

Views

167

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Numerical simulation of LNG leakage fire temperature distribution from pipeline in tunnel

Simulation of supercritical CO2 extraction of clove oil by two-step diffusion model

含内热源的梯形腔自然对流换热数值模拟

低流量微管末端液滴形成及破碎的数值模拟

Numerical simulation of effect of shear perturbations on rheology behavior of liquid crystalline polymers

Related Author

QIAN Xinming

LIU Mu

LIU Zhenyi

LIU Naihui

LI Shufen

GUAN Wenqiang

张敏

陶锴

Related Institution

北京理工大学爆炸科学与技术国家重点实验室

天津大学化工学院，教育部绿色合成与转化重点实验室

南开大学化学学院

国家农产品保鲜工程技术研究中心

西安交通大学能源与动力工程学院

⁰