In-cylinder flame luminosity measured from a stratified lean gasoline direct injection engine
In-cylinder flame luminosity has been used to diagnose combustion process and the formation of soot emissions in compression-ignition engines. Increased soot particle emissions from spark-ignited gasoline direct injection (GDI) engines, especially those with stratified fuel-air mixtures, requires in...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2019-03-01
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| Series: | Results in Engineering |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590123019300052 |
| Summary: | In-cylinder flame luminosity has been used to diagnose combustion process and the formation of soot emissions in compression-ignition engines. Increased soot particle emissions from spark-ignited gasoline direct injection (GDI) engines, especially those with stratified fuel-air mixtures, requires investigation of responsible anomalous flame behavior. In this work, spatiotemporal in-cylinder flame luminosity is reported from a lean stratified operating condition in a modern GDI engine. Significant fuel mass injected near top dead center led to detectable piston-top pool fires that have previously correlated to significant soot particle emissions. The demonstrated result shows that measuring in-cylinder flame luminosity is a viable tool for identifying soot-causing flames in GDI engines. |
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| ISSN: | 2590-1230 |