Characteristics and Effects of Ash Accumulation on Diesel Particulate Filter Performance: Rapidly Aged and Field Aged Results

2009 ◽  
Author(s):  
Alexander Sappok ◽  
Michael Santiago ◽  
Tomas Vianna ◽  
Victor W. Wong
Keyword(s):  
Diesel Particulate Filter ◽  
Particulate Filter ◽  
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
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