Influence of Ash on the Performance of Diesel Particulate Filter

被引：0

作者：

Lyu Y. ^{[1
]}

Chen C. ^{[1
]}

Chen G. ^{[1
]}

Lu S. ^{[2
]}

Huang Z. ^{[1
]}

Shen Y. ^{[1
]}

机构：

[1] Yunnan Key Laboratory of Internal Combustion Engine, Kunming University of Science and Technology, Kunming

[2] Yunnan Filter Environment Protection Science & Technology Corporation Limited, Kunming

来源：

Neiranji Xuebao/Transactions of CSICE (Chinese Society for Internal Combustion Engines) | 2020年 / 38卷 / 03期

关键词：

Ash; Asymmetric cell technology; Diesel particulate filter; Performance;

D O I：

10.16236/j.cnki.nrjxb.202003033

中图分类号：

学科分类号：

摘要：

In order to reduce the influence of ash on the performance of diesel particulate filter(DPF), a mathematical model of ash and soot of the DPF was established. The effect of the factors such as ash loading, soot loading and ash distribution on the DPF performance was studied. The results show that the increase of the inlet and outlet channel ratio for the DPF with an asymmetric cell technology(ACT)is beneficial to reduce the pressure drop, but it is not conducive to increase the filtration efficiency. The filtration efficiency of the soot layer is higher than that of the ash layer, and the filtration efficiency of symmetrical DPF is higher than that of ACT DPF. The filtration efficiency of low porosity is higher than that of the high porosity. Moreover, as the ash distribution coefficient increases, the DPF pressure drop and the filtration efficiency increase, and the ash distribution coefficient has less influence on the ACT DPF than the symmetrical DPF. It is found that the ACT DPF is beneficial to improving the capacity of ash loading, extend the cleaning period and improve the fuel economy. © 2020, Editorial Office of the Transaction of CSICE. All right reserved.

引用

页码：249 / 256

页数：7

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