文章基本信息

标题：Kinetic Modelling and Model based Control of SCR Deposit
本地全文：下载
作者：Feng Qian ; Feng Qian ; Lin Lv 等
期刊名称：MATEC Web of Conferences
电子版ISSN：2261-236X
出版年度：2016
卷号：82
页码：1-6
DOI：10.1051/matecconf/20168201009
语种：English
出版社：EDP Sciences
摘要：Selective catalytic reduction (SCR) is widely used for on-highway as well as off-road applications to fulfil stringent nitrogen oxide (NOX) emission standards. However, in the practical operations, urea deposits occur under unfavourable conditions, which bring about urea dosing strategy failures, affect SCR system de-NOX performance and decrease fuel economy by increase engine back pressure. This paper presents a 1D kinetic model of SCR system, which can predict SCR reaction and deposit formation process. Furthermore, a model-based control strategy has been designed for real engine applications. The ETC test shows the deposits quantity can be reduced by 41.8% with this model.