The volatile organic compounds (VOC) from diesel engines, including formaldehyde and benzene, are concerned and remain as unregulated harmful substances. The substances are positively correlated with THC emissions, but the VOC and aldehyde compounds at light load or idling conditions are more significant than THC. When coolant temperatures are low at light loads, there are notable increases in formaldehyde and acetaldehyde, and with lower coolant temperatures the increase in aldehydes is more significant than the increase in THC. When using ultra high EGR so that the intake oxygen content decreases below 10%, formaldehyde, acetaldehyde, benzene, and 1,3-butadiene increase significantly while smokeless and ultra low Nox combustion is possible.
Unregulated Harmful Substances in Exhaust Gas from Diesel Engines
Sae Int. J. Fuels Lubr
Sae International Journal of Fuels and Lubricants
Powertrains, Fuels and Lubricants Meeting ; 2009
Sae International Journal of Fuels and Lubricants ; 2 , 1 ; 870-876
2009-06-15
7 pages
Conference paper
English
Unregulated harmful substances in exhaust gas from diesel engines
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