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Study finds tailor-made fuels from biomass could significantly reduce emissions of criteria pollutants and greenhouse gases

Green Car Congress

Optimized fuel properties with regard to different emissions Janssen et al. Thus, soot emissions can be reduced significantly while HC and CO emissions are not negatively affected. In order to reduce HC and CO emissions at low engine loads, fuels with a shorter ignition delay are appropriate. Click to enlarge.

Pollution 210
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MECA report finds additional NOx emission reductions from new heavy-duty trucks achievable and cost-effective

Green Car Congress

The transportation sector was responsible for over 7 million tons of NO x emissions in the US in 2014, with 50% of this sector’s NO x attributed to heavy-duty on- and off-road vehicles and equipment. CO 2 and NO x certification test data for heavy-duty diesel engines certified from 2002 through 2019. Source of data: US EPA (2019).

Emissions 291
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Study finds catalyzed gasoline particulate filters effective at reducing particulate and PAH emissions from GDI engines

Green Car Congress

The researchers assessed the gaseous, particulate, and genotoxic pollutants from two current technology gasoline direct injection vehicles when tested in their original configuration and with a catalyzed gasoline particulate filter (GPF). Their study is publishedin the ACS journal Environmental Science & Technology. Yang et al.

Gasoline 253
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DOT, EPA unveil joint proposal for fuel economy and greenhouse gas emission standards: 49.6 mpg CAFE, 163 g/mile GHG in 2025; flexibilities and incentives

Green Car Congress

The US Environmental Protection Agency (EPA) and the US Department of Transportation (DOT) formally unveiled their joint proposal to set stronger fuel economy and greenhouse gas pollution standards for Model Year 2017-2025 passenger cars and light trucks. mpg US (5.87 L/100km) in model year 2021, and 49.6 L/100km) in model year 2025.

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UCS analysis finds Hyundai-Kia with best sales-weighted new vehicle environmental performance in US in 2013

Green Car Congress

In its sixth sales-weighted analysis of emissions from 8 major automakers’ 2013 model year vehicles, the Union of Concerned Scientists’ (UCS) latest Automaker Rankings report found that Hyundai-Kia unseated Honda as the “Greenest Automaker.” Click to enlarge. Source: UCS. Click to enlarge.

2013 299
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Achates OPGCI project targeting 50% fuel efficiency gains over downsized GDI engine at reduced cost

Green Car Congress

The engine should yield fuel efficiency gains of more than 50% compared to a downsized, turbo-charged gasoline direct injection engine, while reducing the overall cost of the powertrain system, said Fabien Redon, Vice President, Technology Development at Achates Power. Earlier post.) Achates compression-ignition OP2S. Earlier post.).

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Use of Supercritical Diesel Fuel for Improved Efficiency and Reduced Emissions

Green Car Congress

the elimination of after-treatment systems.

Diesel 225