scholarly journals An Analysis of Field-Aged Diesel Particulate Filter Performance: Particle Emissions before, during, and after Regeneration

2010 ◽  
Vol 60 (8) ◽  
pp. 968-976 ◽  
Author(s):  
Teresa L. Barone ◽  
John M.E. Storey ◽  
Norberto Domingo
Keyword(s):  
Diesel Particulate Filter ◽  
Particulate Filter ◽  
Particle Emissions ◽  
Diesel Particulate ◽  
Filter Performance

Experimental study of lubricant-derived ash effects on diesel particulate filter performance

2019 ◽  
pp. 146808741987457 ◽  
Author(s):  
Jun Zhang ◽  
Yanfei Li ◽  
Victor W Wong ◽  
Shijin Shuai ◽  
Jinzhu Qi ◽  
...  
Keyword(s):  
Pressure Drop ◽  
Diesel Particulate Filter ◽  
Particulate Filter ◽  
Maximum Temperature ◽  
Particle Emissions ◽  
Diesel Particulate ◽  
Particulate Filters ◽  
Filter Performance ◽  
Soot Loading ◽  
Active Regeneration

Diesel particulate filters are indispensable for diesel engines to meet the increasingly stringent emission regulations. A large amount of ash would accumulate in the diesel particulate filter over time, which would significantly affect the diesel particulate filter performance. In this work, the lubricant-derived ash effects on diesel particulate filter pressure drop, diesel particulate filter filtration performance, diesel particulate filter temperature field during active regeneration, and diesel particulate filter downstream emissions during active regeneration were studied on an engine test bench. The test results show that the ash accumulated in the diesel particulate filter would decrease the diesel particulate filter pressure drop due to the “membrane effect” when the diesel particulate filter ash loading is lower than about 10 g/L, beyond which the diesel particulate filter pressure drop would be increased due to the reduction of diesel particulate filter effective volume. The ash loaded in the diesel particulate filter could significantly improve the diesel particulate filter filtration efficiency because it would fill the pores of diesel particulate filter wall. The diesel particulate filter peak temperature during active regeneration is consistent with the diesel particulate filter initial actual soot loading density prior to regeneration at various diesel particulate filter ash loading levels, while the diesel particulate filter maximum temperature gradient would increase with the diesel particulate filter ash loading increase, whether the diesel particulate filter is regenerated at the same soot loading level or the same diesel particulate filter pressure drop level. The ash accumulation in the diesel particulate filter shows little effects on diesel particulate filter downstream CO, total hydrocarbons, N2O emissions, and NO2/NO x ratio during active regeneration. However, a small amount of SO2 emissions was observed when the diesel particulate filter ash loading is higher than 10 g/L. The ash accumulated in the diesel particulate filter would increase the diesel particulate filter downstream sub-23 nm particle emissions but decrease larger particle emissions during active regeneration.

Experimental Study of Thermal Aging on Catalytic Diesel Particulate Filter Performance

2013 ◽  
Vol 6 (2) ◽  
pp. 688-698 ◽  
Author(s):  
Dimitrios Zarvalis ◽  
Dimitrios Pappas ◽  
Souzana Lorentzou ◽  
Theofilaktos Akritidis ◽  
Leonidas Chasapidis ◽  
...  
Keyword(s):  
Experimental Study ◽  
Thermal Aging ◽  
Diesel Particulate Filter ◽  
Particulate Filter ◽  
Diesel Particulate ◽  
Filter Performance

Modeling Study of Metal Fiber Diesel Particulate Filter Performance

2015 ◽  
Author(s):  
Yujun Wang ◽  
Carl Kamp ◽  
Amin Saeid ◽  
Chris Jackson ◽  
Jim Ernstmeyer ◽  
...  
Keyword(s):  
Diesel Particulate Filter ◽  
Particulate Filter ◽  
Metal Fiber ◽  
Diesel Particulate ◽  
Filter Performance ◽  
Modeling Study

scholarly journals Effect of Biodiesel Blends on Diesel Particulate Filter Performance

2006 ◽  
Author(s):  
Aaron Williams ◽  
Robert L. McCormick ◽  
R. Robert Hayes ◽  
John Ireland ◽  
Howard L. Fang
Keyword(s):  
Diesel Particulate Filter ◽  
Particulate Filter ◽  
Diesel Particulate ◽  
Biodiesel Blends ◽  
Filter Performance

Characterization of the Particle Emissions from Diesel Transit Bus Equipping Diesel Particulate Filter with Fuel Burner

2013 ◽  
Vol 864-867 ◽  
pp. 1386-1393 ◽  
Author(s):  
Di Ming Lou ◽  
Ze Wei Zhu ◽  
Pi Qiang Tan ◽  
Zhi Yuan Hu
Keyword(s):  
Urban Areas ◽  
Diesel Particulate Filter ◽  
Particle Concentration ◽  
Particulate Filter ◽  
Regeneration Process ◽  
Particle Emissions ◽  
Diesel Particulate ◽  
Soot Loading ◽  
Fuel Burner

On-road particle emissions were tested in urban areas of Shanghai from a diesel bus equipping diesel particulate filter with fuel burner. EEPS 3090 particle analyzer was used for analyzing concentrations of particles in different diameters. In this paper, characterization of particles in soot loading and regeneration processes were identified, and particle reduction ability of DPF bus was analyzed. Result shows that, the averaged particle emission rate from DPF bus was degraded by 1 to 2 orders of magnitude during soot loading. Particle concentration distribution was transformed from nuclei-accumulated bi-modal pattern to uniformly multi-peaks patterns. In DPF regeneration process, particles of accumulated mode sized between 60.4nm and 107.5nm were decomposed and oxidized into fine nuclei particles of 29.4nm to 60.4nm, which increases total particle concentration. Reduction percentage of particle number per kilometer of DPF bus for soot loading and regeneration process reaches respectively 97% and 83.2% compared with normal diesel bus.

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