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DOE researchers investigate economic and environmental impacts of converting wet waste to renewable diesel

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An open-access paper on their results is published in the journal ACS Sustainable Chemistry & Engineering. The marginal GHG emissions abatement costs were estimated to be $116–$270/tonne CO 2e and $5–$103/tonne CO 2 e for the yellow grease HEFA and swine manure HTL pathways, respectively, for a diesel price ranging between $0.5/GLE

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EU-funded project develops diesel engine for light helicopters

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EU-funded scientists developed a novel 320 kW (429 hp) diesel engine for light helicopters as an alternative to conventional turboshaft engines. The technology demonstrated substantial reductions in fuel consumption and emissions. The engine weight is the crux of the project. —DELILAH final report.

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Argonne study finds BEVs can have lowest scheduled maintenance costs, but highest cost of driving

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The study considers five different powertrains (internal combustion engine, hybrid-electric, plug-in hybrid-electric, fuel-cell-electric, and battery-electric) and 12 cost components (purchase cost, depreciation, financing, fuel, insurance, maintenance, repair, taxes, registration fees, tolls and parking, payload capacity and labor).

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Diesel/2-methylfuran blends show higher brake thermal efficiency, higher NOx than diesel

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Researchers at Wuhan University report on the first comprehensive study of the combustion and emissions performance of blends of diesel and the renewable fuel 2-methylfuran (MF) in compression-ignition engines. Their paper is published in the journal Fuel. The basic water insolubility of MF makes its storage steady.

Diesel 150
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JATO: new car CO2 emissions rise for the first time in a decade in Europe; diesel down, gasoline up, SUVs up

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This rise in average CO 2 emissions correlates with a decrease in demand for diesel cars across Europe—which produce lower CO 2 emissions than gasoline cars—and the rising popularity of SUVs, which emit higher average CO 2 emissions of 133.0 In turn, diesel cars accounted for just 43.8% g/km—a difference of 5.5

Gasoline 244
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FEV to show compressed natural gas light-duty concept engine with ATAC combustion system at 2011 SAE World Congress

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FEV) a leading developer of advanced powertrain and vehicle technologies, will exhibit a lean burn engine concept at the SAE 2011 World Congress that has been modified to run on Compressed Natural Gas (CNG). FEV developed ATAC more than a decade ago, targeting large-bore engines in stationary and heavy-duty applications. FEV Inc., (FEV)

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Study finds clear trend of increasing NOx with higher biodiesel blends with CARB diesel; NOx neutrality achieved by blending in renewable or GTL diesel

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NO x emissions results of biodiesel, renewable, and GTL diesel fuel blends, and CARB diesel fuel for 2006 Cummins ISM. They also found that increasing renewable diesel (Neste Oil’s NExBTL) and gas-to-liquids (GTL) diesel blends showed NO x reductions with rising blend level. Credit: ACS, Hajbabaei et al.

Diesel 290