Green Car Congress

JULY 18, 2022

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.

Fuel Economy 186

Fuel Economy Economy Fuel Ozone 186

Green Car Congress

JANUARY 2, 2019

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. Testing was conducted over triplicate cold-start and hot-start LA92 cycles. —Yang et al. 8b02206.

Pollution 255

Pollution Fuel Vehicles Emissions 255

Green Car Congress

JUNE 1, 2017

Traffic contributes more to NO x emissions in Europe than previously thought, according to a new study by a team at the University of Innsbruck. Using statistical methods, the scientists infer emissions from these data within a radius of about one kilometer of the measurement location. We record 36,000 data points per hour.

Europe 150

Europe Diesel Emissions Pollution 150

Green Car Congress

AUGUST 6, 2014

Some strategies to reduce emissions include running the engine highly dilute, with excess air or with recirculated exhaust gases as part of the combustion charge. However, increased dilution leads to increased combustion instability resulting in reduced fuel-economy benefits. Bernardi (University of Illinois).

Engine 335

Engine GM Ford 2014 335

Green Car Congress

MAY 12, 2017

The study, by a team of researchers from Carnegie Mellon University, University of Georgia, Aerodyne Research, California Air Resources Board (ARB), Ohio State University, UC Berkeley, and UC San Diego is published in the ACS journal Environmental Science & Technology. For our fleet, increases in the fuel economy of 1.6% (0.5−2.4%;

Fleet 207

Fleet Engine Global Fuel Economy 207

Green Car Congress

JANUARY 16, 2017

Specific Thrust I accomplishments in the first year include: Co-Optima researchers performed the first systematic assessment of the suitability of oxygenate functional groups in fuel blends for SI engine, and identified more than 40 bio-derived materials as potential blendstocks.

Engine 150

Engine Fuel Downsizing Gasoline 150

Green Car Congress

JULY 17, 2015

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. Table of Contents.

PHEV 150

PHEV Plug-in Renewable Energy 150