| 李鉴松,孟忠伟,陈超,苗垒.再生温度和来流参数对柴油机颗粒过滤器再生和过滤特性影响的试验研究[J].内燃机工程,2020,41(4):27-38. |
| Experimental Study on the Effect of Regeneration Temperature and Input Exhaust Parameters on the Regeneration and Filtration Characteristics of a Diesel Particulate Filter |
| DOI：10.13949/j.cnki.nrjgc.2020.04.004 |
| Key Words:diesel particulate filter（DPF） flow rate regeneration temperature particle emission |
| Author Name | Affiliation | | LI Jiansong,MENG Zhongwei,CHEN Chao，MIAO Lei | 1.Department of Mechanical and Electrical Engineering, Nanchong Vocational and Technical College, Nanchong 637131, China
2.School of Automobile & Transportation, Xihua University,Chengdu 610039, China
3.Wuxi Weifu Lida Catalytic Converter Co., Ltd., Wuxi 214177, China |
|
| 摘要点击次数: 3730 |
| 全文下载次数: 1774 |
| Abstract:The effect of different regeneration temperature and input exhaust flow rate on particulate emissions from a diesel particulate filter(DPF) were studied using an externally heated regeneration performance test bench. The test results showed that when the amount of particle loaded for the bench test was 2.5g/L, the number of particle concentration at the DPF outlet appeared one peak, and when the particle loading was 5.0g/L, two peaks appeared. At the same input exhaust flow rate, the regeneration efficiency and the total particle mass concentration increased with the rise of regeneration temperature. At this time, the outlet particles at the heating stage were mainly in the nucleation mode, and during the regeneration stage, a temperature peak appeared in the DPF, and the particles from the DPF outlet were mainly in the accumulation mode with a diameter of 50nm or more. At the same regeneration temperature, when the particle loading was 2.5g/L, the regeneration efficiency and the total particle mass concentration increased with the rise of input exhaust flow rate. At this time, the outlet particles at the heating and regeneration stages were mainly in the nucleation mode. When the particle loading was 5.0g/L, the regeneration efficiency and the total particle mass concentration tended to increase first and then decrease as the input exhaust flow rate increased. At this time, the outlet particles at the heating stage were mainly in the nucleation mode, while at the regeneration stage, some accumulative particles were discharged at high exhaust flow rate. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
|
|
|