环境工程学报2012，Vol.6Issue(12)：4573-4578,6.
柴油机SCR催化器载体结构参数优化
Optimization on structural parameters of diesel SCR catalytic reactor
摘要
Abstract
The optimal design method of structural parameters for diesel urea-SCR was proposed. Accord- ing to the differences of diesel engine displacement, the urea-selective catalytic reactor can be divided into four subclasses. Taking high conversion ratio of NO and small pressure loss as the optimization goal, with monolith volume, length,cell per square inch,wall thickness and washcoat thickness as design variables, Latin Hypercube method was used to carry out sampling of parameters. The obtained samples were analyzed with numerical simula- tion. On this basis, the optimization was solved by NSGA-Ⅱ (non-dominated sorting genetic algorithm-Ⅱ ) , using Kriging model as the approximate model. The results show that the Kriging model has high fitting accuracy,dem- onstrate the efficiency and applicability of the optimal design method. The optimization results of different diesel engine displacement show that the method can obtain structural parameters which meet design requirements.关键词
柴油机SCR/催化器载体/结构参数优化/Kriging模型/NSGA—II算法Key words
diesel selective catalytic reduction/catalytic reactor/optimization of structural parameters/Kriging model/NSGA-Ⅱ algorithm分类
能源科技引用本文复制引用
龚金科,张福杰,鄂加强,刘恒语,杜佳,陈韬,江俊豪..柴油机SCR催化器载体结构参数优化[J].环境工程学报,2012,6(12):4573-4578,6.基金项目
国家自然科学基金资助项目 （）
湖南省自然科学基金资助项目 （）
湖南大学汽车车身先进设计制造国家重点实验室自主课题 （）
