Modeling the Emissions Control Performance of a Catalyzed Diesel Particulate Filter (CDPF) System for Light Duty Diesel Applications

2009 ◽  
Vol 2 (1) ◽  
pp. 578-589 ◽  
Author(s):  
Andrew P.E. York ◽  
Timothy C. Watling ◽  
Mehrdad Ahmadinejad ◽  
David Bergeal ◽  
Paul R. Phillips ◽  
...  
Keyword(s):  
Diesel Particulate Filter ◽  
Particulate Filter ◽  
Control Performance ◽  
Emissions Control ◽  
Diesel Particulate ◽  
Light Duty ◽  
Catalyzed Diesel Particulate Filter

Effects of the MMT® Fuel Additive on a Catalyzed Diesel Particulate Filter

2003 ◽  
Author(s):  
Greg H. Guinther ◽  
David M. Human ◽  
Daniel A. Nyman ◽  
Arvind Suresh
Keyword(s):  
Diesel Particulate Filter ◽  
Particulate Filter ◽  
Fuel Additive ◽  
Diesel Particulate ◽  
Catalyzed Diesel Particulate Filter

Effects of B20 on Emissions and the Performance of a Diesel Particulate Filter in a Light-Duty Diesel Engine

2009 ◽  
Author(s):  
Amy M. Peterson ◽  
Po-I Lee ◽  
Ming-Chia Lai ◽  
Ming-Cheng Wu ◽  
Craig L. DiMaggio ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Diesel Particulate Filter ◽  
Oxidation Catalyst ◽  
Engine Oil ◽  
Particulate Filter ◽  
Oil Viscosity ◽  
Regeneration Rate ◽  
Diesel Particulate ◽  
Light Duty ◽  
Active Regeneration

This paper compares 20% bio-diesel (B20-choice white grease) fuel with baseline ultra low sulfur diesel (ULSD) fuel on the emissions and performance of a diesel oxidation catalyst (DOC) and diesel particulate filter (DPF) coupled to a light-duty 4-cylinder 2.8-liter common-rail DI diesel engine. The present paper focuses on the comparison of the fuel effects on loading and active regeneration of the DPF between B20 and ULSD. B20, in general, produces less soot and has lower regeneration temperature compared to soot loaded with ULSD. NO2 concentrations before the DPF were found to be 6% higher with B20, indicating more availability of NO2 to oxidize the soot. Exhaust speciation of the NO2 availability indicates that the slight increase in NOx from B20 is not the dominant cause for the lower temperature regeneration and faster regeneration rate but the reactivity of the soot that is in the DPF. Formaldehyde concentrations are found to be higher with B20 during regeneration due to increased oxygen concentrations in the exhaust stream. Finally the oil dilution effect due to post injection to actively regenerate the DPF is also investigated using a prototype oil sensor and FTIR instrumentation. Utilizing an active regeneration strategy accentuates the possibility of fuel oil dilution of the engine oil. The onboard viscosity oil sensor used was in good agreement with the viscosity bench test and FTIR analysis and provided oil viscosity measurement over the course of the project. Operation with B20 shows significant fuel dilution and needs to be monitored to prevent engine deterioration.

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