EXPERIMENTAL EVALUATION OF APPARENT SOOT OXIDATION RATES IN DIESEL PARTICULATE FILTERS

The use of diesel particulate filters (DFP) in the exhaust system of diesel engines is gaining in importance for both light-duty (passenger cars) and heavy-duty applications. In this article, the authors report on research that combines real engine measurements with mathematical modeling, in an effort to overcome earlier variations in research results regarding the oxidation of soot in diesel filters. The authors' methodology relies on a calculation procedure for the online assessment of soot mass in the filter, based on pressure drop modeling. The authors conclude that by applying reliable correlations to infer the instantaneous soot mass in the particulate filter, it is possible to compute the soot regeneration rate at real exhaust gas reacting conditions. The results obtained for the dependence of soot oxidation rate on temperature did not depend either on the filter geometry and material, or on the initial soot mass and exhaust gas flow rate. This supports the application of this methodology in a wide range of operating conditions. Also, the methodology can be readily applied in fuel borne catalyst-assisted oxidation as well as NO2 assisted soot reaction. The authors conclude that this methodology can be reliably employed for comparative assessments of various regeneration catalytic aids, including fuel additives and washcoats.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/14775360
• Corporate Authors:

  Inderscience Enterprises Limited

  World Trade Center Building, 110 Avenue Louis Casai
  Geneva,   Switzerland 
• Authors:
  • Haralampous, O A
  • Kandylas, I P
  • Koltsakis, G C
  • Samaras, Z C
• Publication Date: 2004

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 365-381
• Serial:
  • International Journal of Vehicle Design
  • Volume: 35
  • Issue Number: 4
  • Publisher: Inderscience Enterprises Limited
  • ISSN: 1477-5360
  • Serial URL: http://www.inderscience.com/jhome.php?jcode=IJVD

Subject/Index Terms

• TRT Terms: Catalysts; Diesel engine exhaust gases; Diesel engines; Filters; Kinetics; Mathematical models; Oxidation; Particulates; Simulation
• Uncontrolled Terms: Soot
• Subject Areas: Highways; Vehicles and Equipment; I96: Vehicle Operating Costs;

Filing Info

• Accession Number: 00985123
• Record Type: Publication
• Files: TRIS
• Created Date: Jan 24 2005 12:00AM