Characterization of Combustion and NO Formation in a Spray-Guided Gasoline Direct-Injection Engine using Chemiluminescence Imaging, NO-PLIF, and Fast NO Exhaust Gas Analysis 2005-01-2089
The spatial and temporal formation of nitric oxide in an optical engine operated with iso-octane fuel under spray-guided direct-injection conditions was studied with a combination of laser-induced fluorescence imaging, UV-chemiluminescence, and cycle resolved NO exhaust gas analysis. NO formation during early and late (homogeneous vs. stratified) injection conditions were compared. Strong spatial preferences and cyclic variations in the NO formation were observed depending on engine operating conditions. While engine-out NO levels are substantially lower for stratified engine operation, cyclic variations of NO formation are substantially higher than for homogeneous, stoichiometric operation.
Citation: Fissenewert, U., Sick, V., and Pucher, H., "Characterization of Combustion and NO Formation in a Spray-Guided Gasoline Direct-Injection Engine using Chemiluminescence Imaging, NO-PLIF, and Fast NO Exhaust Gas Analysis," SAE Technical Paper 2005-01-2089, 2005, https://doi.org/10.4271/2005-01-2089. Download Citation
Udo Fissenewert, Volker Sick, Helmut Pucher
The University of Michigan, Technische Universität Berlin
2005 SAE Brasil Fuels & Lubricants Meeting
SAE 2005 Transactions Journal of Fuels and Lubricants-V114-4