Conventional Combustion: Spark Ignition (SI – gasoline)

•High engine-out HC, CO, and NOx emissions, but low tailpipe emissions (catalyst)
•Peak thermal efficiency typically 30%, full load range possible
•The spark was created by a focused 532-nm beam from a pulsed Nd:YAG laser (100 mJ)

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ParameterValue
Fueliso-octane (Φ=1)
Intake21% O2
Load4 bar IMEP
Intake T30°C
Intake P0.62 bar
Spark-10° ATDC
Speed1200 rpm
Engine rc10.75
Window100 mm diam
Framing7200 fps
Effective Camera Gain300
Filter500 nm SWP