| EGR冷却器对柴油机NOX排放的影响 |
| |
| 引用本文： | 贺捷,贺良国. EGR冷却器对柴油机NOX排放的影响[J]. 内燃机与配件, 2021, 0(3): 38-39 |
| |
| 作者姓名： | 贺捷 贺良国 |
| |
| 作者单位： | 合肥工业大学机械工程学院,合肥230000;合肥工业大学机械工程学院,合肥230000 |
| |
| 摘 要： | 本工作针对某公司PEMS排放试验中NOX排放超标问题,对其发动机在2020年和2017年两种不同EGR冷却器的情况下的发动机排放进行比较,分析得到2020年发动机所存在的问题为EGR冷却器冷却效率不足导致NOX的排放量超标.本工作基于现有EGR冷却器进行了结构改进,冷凝隔板由原来的8层改成为9层.通过对改进后的样件与原...
|
| 关 键 词： | EGR冷却器 冷凝隔板 NOX PEMS |
The Effect of EGR Cooler on NOX Emission of Diesel Engine |
| |
| HE Jie,HE Liang-guo. The Effect of EGR Cooler on NOX Emission of Diesel Engine[J]. Internal Combustion Engine & Parts, 2021, 0(3): 38-39 |
| |
| Authors: | HE Jie HE Liang-guo |
| |
| Affiliation: | (School of Mechanical Engineering,Hefei University of Technology,Hefei 230000,China) |
| |
| Abstract: | In view of the problem of NOX emission exceeding the standard in the PEMs emission test of A company.In this work,the engine emissions of two different EGR coolers in 2020 and 2017 are compared.The analysis shows that the problem of the engine in 2020 is that the cooling efficiency of the EGR cooler is insufficient,which leads to the excessive NOX emission.Based on the existing EGR cooler,the structure of the condensing baffle is changed from 8 layers to 9 layers.Comparison of the data of the improved sample and the original cooler,it is found that the NOX emission of the improved cooler is basically stable at 1.7~2.4 g/kW·h,which met the national standard(≤4 g/kW·h),and it provides a feasible scheme for the problem that the PEMS emission exceeds the standard at present. |
| |
| Keywords: | EGR cooler condensing separator NOX PEMS |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
