Green Car Congress
DECEMBER 23, 2013
The general trend of increased ethanol and acetaldehyde emissions, and decreased NMHC emissions, with increased ethanol blend level is expected based on the dominant role of fuel chemistry in determining the tailpipe emissions of these species—e.g., via the unburned or partially burned fuel which is a major component of engine exhaust.
Green Car Congress
AUGUST 30, 2009
80.27, “high ozone season” means the period from June 1 to September 15 of any calendar year and “regulatory control period” means the period from May 1 to September 15 of any calendar year. Small quantities of water absorbed in the fuel result in a slight increase in power caused by the higher latent heat of vaporization of the fuel.”.
Green Car Congress
MAY 12, 2017
Gasoline direct-injection (GDI) engines have higher fuel economy compared to the more widely used port fuel injection (PFI) engines. We estimate ozone and SOA formation potential. Therefore, the secondary organic aerosol and ozone formation potential of the exhaust does not depend on engine technology.
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