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UC Riverside study finds emissions benefits for E15 blend in California

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A study by a team from UC Riverside has assessed the potential of increasing ethanol content in California reformulated gasoline (CaRFG) by investigating the exhaust emissions from a fleet of 20 Tier 3 light-duty vehicles. A baseline CaRFG E10 (10% ethanol by volume) fuel was splash-blended with denatured ethanol to create an E15 fuel.

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FEV testing finds Transient Plasma ignition system increases fuel efficiency and decreases emissions

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liter, direct and port fueled injection, inline 4-cylinder gasoline engine commonly used in the Camry line of vehicles. Data was collected with the stock ignition system with a representative ignition strategy, followed by comparison to a drop-in replacement with the TPS nanosecond pulsed power ignition system (coil and plug).

Emissions 243
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SwRI CAT-DEF reduces heavy-duty diesel emissions to meet CARB 2027 NOx requirements

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CAT-DEF—Catalyzed Diesel Exhaust Fluid—is an SwRI-developed catalyst- and surfactant-modified diesel exhaust fluid (DEF) solution. The internally funded advancement successfully reduced heavy-duty diesel engine nitrogen oxide (NO x ) emissions to meet the California Air Resources Board (CARB) 2027 standards.

Diesel 284
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Study finds scrubbers have lower climate impact than low-sulfur fuel

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A recent report from CE Delft, an independent research and consultancy organization, regarding the climate impact of Exhaust Gas Cleaning (EGC) systems for the marine industry. The study compares the results to the use of low-sulfur marine fuels and is made from a well-to-wake perspective in order to achieve an accurate comparison.

Climate 243
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Westport Fuel Systems & AVL conclude high-efficiency H2 powertrain can outperform fuel cells in TCO for heavy-duty applications

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In a joint publication, WFS and AVL conclude that the combined high efficiency and lower system costs relative to FCEVs make H 2 -HPDI the most capital efficient means to use hydrogen and lower CO 2 emissions near-term and that it has the potential to remain competitive with fully industrialized FCEV in the future.

Fuel 221
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Study finds total greenhouse gas footprint of blue hydrogen “quite high” due to fugitive methane

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“Blue” hydrogen—produced through steam methane reforming (SMR) of natural gas or coal gasification, but with CO 2 capture and storage—is being described as having low or zero carbon emissions. Carbon dioxide emissions, including emissions from developing, processing, and transporting the fuels, are shown in orange.

Hydrogen 414
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Reduction in diesel carbonyl emissions using F-T fuel from coal

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Other research has shown that carbonyls directly influence physiological response to diesel exhaust particles and can also contribute to secondary organic aerosol formation. In the Tianjin study, they team fueled a four-cylinder light-duty diesel engine fueled with CFT and DF, identifying 13 individual carbonyl compounds in the exhaust.

Coal 210