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Lumped Parameter Approach for DPF Management in Stationary Diesel Engines

[+] Author Affiliations
G. Chiatti, O. Chiavola, G. Falcucci

University of Rome ‘Roma Tre’, Rome, Italy

Paper No. ICES2008-1670, pp. 75-85; 11 pages
doi:10.1115/ICES2008-1670
From:
  • ASME 2008 Internal Combustion Engine Division Spring Technical Conference
  • ASME 2008 Internal Combustion Engine Division Spring Technical Conference
  • Chicago, Illinois, USA, April 27–30, 2008
  • Conference Sponsors: Internal Combustion Engine Division
  • ISBN: 0-7918-4813-2 | eISBN: 0-7918-3815-3
  • Copyright © 2008 by ASME

abstract

During the last years, emission standards for diesel engines have got more and more severe not only for light- and heavy-duty road application, but also in the nonroad, locomotive and stationary fields. In this paper, the results of a Lumped Parameter (LP) model for Diesel Particulate Filter (DPF) management in stationary diesel engines are presented. The developed LP model allows to predict the pressure drop and soot layer growth in time along the trap channel. In the model, the equations are tuned by means of a complete CFD analysis of the gas flux through a wall-flow DPF. The difference in flow field due to the radial distance from the filter axis and its effects on the soot growth inside the channel are taken into account as the loading phase proceeds. The temperature evolution during the regeneration process of the device is predicted, too, thus permitting a complete management of the filter in control applications.

Copyright © 2008 by ASME
Topics: Diesel engines

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