Effects of post-injections strategies on UHC and CO at gasoline PPC conditions in a heavy-duty optical engine
MO Lundgren, Z Wang, A Matamis, O Andersson… - 2017 - sae.org
Gasoline partially premixed combustion (PPC) has shown potential in terms of high
efficiency with low emissions of oxides of nitrogen (NOx) and soot. Despite these benefits,
emissions of unburned hydrocarbons (UHC) and carbon monoxide (CO) are the main
shortcomings of the concept. These are caused, among other things, by overlean zones
near the injector tip and injector dribble. Previous diesel low temperature combustion (LTC)
research has demonstrated post injections to be an effective strategy to mitigate these …
efficiency with low emissions of oxides of nitrogen (NOx) and soot. Despite these benefits,
emissions of unburned hydrocarbons (UHC) and carbon monoxide (CO) are the main
shortcomings of the concept. These are caused, among other things, by overlean zones
near the injector tip and injector dribble. Previous diesel low temperature combustion (LTC)
research has demonstrated post injections to be an effective strategy to mitigate these …
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