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Study suggests high-mileage light-duty fleets contribute higher emissions and emissions share than expected

Green Car Congress

A study by researchers from the University of Denver and the University of Puget Sound indicates that high-mileage light-duty fleets contribute higher emissions and emissions share than expected based on their actual numbers in the fleet. In their study, Bishop et al.

Emissions 150
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New FOX method estimates black carbon emissions from civil aviation ~2.7 times higher than standard estimates

Green Car Congress

Comparison between estimated EI BC and measured EI BC derived FOA3 (black open box), the FOA3 approach with the updated SN-CI correlation (blue triangle), and estimates obtained from the new FOX method (red circle) that are not dependent on SN. Gg/year and 0.035 g/kg-fuel). Credit: ACS, Stettler et al. Click to enlarge.

Emissions 199
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Polystyrene-Biodiesel Blends for Energy Recovery from Waste Plastics

Green Car Congress

Comparisons of NO x , CO, soot, and engine brake power using different PS blends with the factory-set injection timings. Researchers at Iowa State University are proposing dissolving waste polystyrene (PS) in biodiesel for use as a diesel engine fuel as a mechanism for energy recovery from the waste plastic. Credit: ACS.

Waste 207
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Improving performance of 2-methylfuran as alternative SI fuel using cooled EGR

Green Car Congress

In a paper in the journal Fuel , researchers at Tianjin University report on the use of cooled EGR to improve the overall performance of 2-methylfuran (MF) as an alternative fuel. —Pan et al. 2014.04.054.

Fuel 199
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Study finds butanol-gasoline blends effective to control soot from CI engines under Low Temperature Combustion

Green Car Congress

A study by a team at Tianjin University found that the addition of n-butanol to gasoline for use in a compression ignition engine (CI) under Low Temperature Combustion (LTC) conditions has a significant effect on soot reduction. Renewable feedstock and high octane number rating make ethanol a very promising alternative fuel in CI engine.

Gasoline 210
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Lotus Omnivore Engine Shows Up To 10% Better Fuel Economy Than Spray-Guided GDI Engines; Achieves HCCI At Extremely Light Loads

Green Car Congress

Comparison of fuel consumption of Omnivore, homogeneous Gasoline Direct Injection (GDI) and Spray-Guided GDI engines. The first testing phase of Lotus Engineering’s Omnivore variable compression ratio, flex-fuel direct injection two-stroke engine ( earlier post ) has been successfully completed on gasoline. Click to enlarge.

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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. Table of Contents.

PHEV 150