|
|||||
|
|
| 柴油机Urea-SCR系统建模与仿真研究 | |
| 引用本文： | 邓成林,张亚军,张春润,姚广涛,资新运,姜大海.柴油机Urea-SCR系统建模与仿真研究[J].车用发动机,2009(3). |
| 作者姓名： | 邓成林 张亚军 张春润 姚广涛 资新运 姜大海 |
| 作者单位： | 1. 军事交通学院汽车工程系,天津,300161;清华大学汽车安全与节能国家重点实验室,北京,100084 2. 军事交通学院汽车工程系,天津,300161 3. 军事交通学院汽车工程系,天津,300161;北京交通大学机电工程学院,北京,100044 |
| 基金项目： | 国家高技术研究发展计划(863计划) |
| 摘 要： | 分别建立了基于GT-Power软件的目标发动机模型和尿素SCR一维催化器模型,依据搭建的试验装置,验证了模型的有效性。在十三工况中,排气流量和排气温度的最大误差分别为4.13%和8.3%。在SCR催化器模型验证中,模拟值与试验值趋势一致,吻合较好。将上述模型耦合,对柴油机尿素SCR系统进行模拟分析。模拟结果表明:催化剂温度分布沿排气流向基本呈线性分布;选择催化还原反应主要集中在催化剂的入口段;催化剂的催化效能利用率与催化剂表面NH3覆盖度密切相关,随排气流向下降,提高催化剂的NH3吸附能力可以显著提高催化剂的转化效能。模拟结果可以用于柴油机尿素SCR系统控制策略的制定和SCR催化器的设计与定型。 |
| 关 键 词： | 柴油机 催化转化器 选择催化还原 建模 仿真 |
Simulation and Modeling of Diesel Engine Urea-SCR System |
|
| DENG Cheng-Lin,ZHANG Ya-jun,ZHANG Chun-run,YAO Guang-tao,ZI Xin-yun,JIANG Da-hai.Simulation and Modeling of Diesel Engine Urea-SCR System[J].Vehicle Engine,2009(3). | |
| Authors: | DENG Cheng-Lin ZHANG Ya-jun ZHANG Chun-run YAO Guang-tao ZI Xin-yun JIANG Da-hai |
| Institution: | DENG Cheng-Lin1,2,ZHANG Ya-jun1,ZHANG Chun-run1,YAO Guang-tao1,ZI Xin-yun1,JIANG Da-hai1,3(1.Academy of Military Transportaion PLA.,TianJin 300161,China,2.State Key Laboratory of Automotive Safely , Energy,Tsinghua University,Beijing 100084,3.College of Mechanical , Electrical Engineering,Beijing Jiaotong University,Beijing 100044,China) |
| Abstract: | The models of diesel engine,which was based on GT-Power software,and one-dimensional SCR were built and verified on the test bench.For the ESC,the maximum errors of exhaust flow and exhaust temperature between simulation results and measuring results were respectively 4.13% and 8.3%.For the SCR model,the simulation results had a good coincidence with the measuring results.Coupling the two models,the SCR system of diesel engine was simulated and analyzed.The simulation results show that the temperature distr... |
| Keywords: | diesel engine catalytic converter selective catalyst reduction(SCR) modeling simulation |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |