This paper presents the detailed characterization of particulate emissions from a NADI™ dual mode engine (HCCI at low load and conventional combustion at high load). Morphology, composition and chemical reactivity of the particulate matter generated on an engine running in HCCI mode have been specified and compared to the conventional mode reference.Results showed that HCCI combustion formed particles with a higher volatile organic fraction due to the relatively high level of HC generated by this kind of combustion. Advanced soot characterization emphasized that HCCI soot is oxidized at a slower reaction rate than conventional soot, but with a lower temperature. This last characteristic could partially compensate the poor continuous regeneration effect due to low NO2 emission levels observed in HCCI combustion. Microscopic observation and particle sizing did not show significant differences between HCCI and conventional soot.
Detailed Particulate Characterization from HCCI Combustion for Future DPF Development
Sae Technical Papers
SAE World Congress & Exhibition ; 2009
2009-04-20
Conference paper
English
Detailed Kinetic Modeling of HCCI Combustion with Isopentanol
SAE Technical Papers | 2011
|Modeling of HCCI combustion and emissions using detailed chemistry
Automotive engineering | 2001
|Modeling of HCCI Combustion and Emissions Using Detailed Chemistry
SAE Technical Papers | 2001
|HCCI: a combustion for the future?
Automotive engineering | 2006
|HCCI: a combustion for the future?
Online Contents | 2006
|