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CARB releases results of multi-year E15 study; multiple air quality benefits with slight reduction in fuel economy

Green Car Congress

The California Air Resources Board (CARB) has released the results of a multiyear study evaluating exhaust emissions from the use of California Reformulated Gasoline (CaRFG) that contains 15 volume percent ethanol (E15). The study used two fuels—an E10 and E15.

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UC Riverside team examines influence of mid-and high-level ethanol blends on pollution from GDI flex fuel vehicle

Green Car Congress

Their paper is published in the ACS journal Energy & Fuels. The researchers used four fuels: a baseline US EPA Tier 3 E10 fuel; one E10 fuel with higher aromatics content than the baseline E10; an E30 fuel that was splash-blended with the Tier 3 E10; and an E78 fuel. —Yang et al. Durbin, Kent C.

Pollution 255
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Study finds air quality models significantly underestimate traffic as source of NOx in Europe

Green Car Congress

It has been a challenge to determine how much each polluter contributes to the emission output. However, the amount of pollutant emissions that vehicles emit on a daily basis depends on numerous factors, for example on individual driving behavior. We record 36,000 data points per hour. —Thomas Karl.

Europe 150
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Study finds fleet switch from PFI to GDI engines will result in net reduction in global warming

Green Car Congress

Gasoline direct-injection (GDI) engines have higher fuel economy compared to the more widely used port fuel injection (PFI) engines. Among the findings from the study: For vehicles certified to the same emissions standard, there is no statistical difference of regulated gas-phase pollutant emissions between PFIs and GDIs.

Fleet 207
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Using the PHEV (Plug-In Hybrid Electric Vehicle) to Transition Society Seamlessly and Profitably From Fossil Fuel to 100% Renewable Energy

Green Car Congress

The alternative-fuel car evolved to reduce exhaust emissions and other problems derived from burning fossil fuels. The PHEV (Plug-in Hybrid Electric Vehicle), a subset of the electric car, combines a primary electric motor with a much smaller back-up engine fueled with a hydrocarbon/biofuel mix. slow charge. References.

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