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Studies highlight effects of different gasoline components on fuel economy, combustion and emissions

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Researchers at Jilin University (China) have investigated the effect of gasoline components on fuel economy, combustion and emissions in a GDI (gasoline-direct-injection) engine. So far, there are few complete comparative studies about the effect of different components of gasoline on fuel economy. The first paper (Han et al.

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Argonne-led team develops new low-cost cobalt-based catalyst for PEM electrolysis

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A multi-institutional team led by the US Department of Energy’s (DOE) Argonne National Laboratory (ANL) has developed a low-cost cobalt-based catalyst for the production of hydrogen in a proton exchange membrane water electrolyzer (PEMWE). Production of green hydrogen at that cost could reshape the nation’s economy.

Low Cost 186
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Audi presents PPE-based activesphere concept; electric drive quattro coupé with active back cargo bed

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meter-long activesphere can turn into an open cargo bed (“active back”) at the touch of a button—perfect for carrying recreational equipment such as e-bikes or water and winter sports gear. The Sportback rear of the 4.98 The Audi activesphere features a drive system and suspension which make it equally adept on both on and off the road.

Audi 259
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California 2017 GHG inventory shows 1.2% total drop from 2016; transportation sector emissions up 1%

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These reductions have occurred while California’s economy has continued to grow. while the carbon intensity of its economy declined by 4.5%. Changes in emissions by Scoping Plan sector between 2000 and 2017. Compared to 2016, California’s GDP grew 3.6% Trends in California GHG Emissions.

2017 230
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Chevrolet introduces second-generation Duramax 4-cylinder diesels; global engine

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Better efficiency also means better reliability, economy as well as lower emission levels. Water-cooled turbo. The improved variable-geometry turbo incorporates a water-cooling system in the turbine housing to reduce heat when operating at high speeds and full load. —Nicola Menarini, Global Chief Engineer, GM Powertrain.

Diesel 334
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API: January petroleum demand in US lowest in 18 years

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This isn’t surprising given an economy that’s still treading water.” In January, total imports were at their lowest level for the month in 13 years, since 2000. Total US petroleum deliveries (a measure of demand) were down 1.7% The January numbers reprise last year’s theme of weak demand. —API Chief Economist John Felmy.

2012 368
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Study finds global carbon emissions reached 10 billion tonnes in 2010

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each year between 2000 and 2010—three times the rate of increase during the 1990s. Rebounding from the global financial crisis of 2008-09 when emissions temporarily decreased, last year’s high growth was caused by both emerging and developed economies. On average, fossil fuel emissions have risen by 3.1%

2010 239