Abstract
The regeneration characteristics of diesel particulate filters are mainly determined by the properties of the stored soot. It is possible to exert specific influence on the soot burning behavior by modifying the soot characteristics. For this reason, the impact of engine operating parameters on the reactivity of diesel exhaust particulates was examined as part of a FVV research project No. 954 “Reactivity of Soot” at the Institute for Combustion Engines (VKA) of the RWTH Aachen University. The emitted diesel exhaust particulates were characterized with the help of various analysis methods. Further investigations using diesel particulate filter loaded with soot made it possible to show a correlation between soot reactivity of the emitted soot and the regeneration characteristics in the DPF. The insights gained were used in an alternative DPF regeneration strategy.
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