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ORNL team achieves diesel-like efficiency with SI engine

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A team at Oak Ridge National Laboratory (ORNL) has achieved diesel-like efficiency in a single-cylinder spark-ignition (SI) research engine while maintaining compatibility with stoichiometric 3-way catalyst (TWC) systems. A paper on their work is published in the International Journal of Engine Research. Splitter et al.

Diesel 468
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Sandia team develops gasoline-like fuel blend with high renewable content that simultaneously increases ?-sensitivity, RON, and octane sensitivity

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A team at Sandia National Laboratories has designed a five-component gasoline-like blend containing 40% vol of a mixture of 2-methyl furan and 2,5-dimethyl furan (representative of products of a viable pathway to make furans from bio-feedstock). Regular gasoline is not very ?-sensitive and octane sensitivity (S) = 13.6,

Gasoline 416
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International automotive researchers emphasize the importance of continued development of the internal combustion engine

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Thirty-seven globally prominent scientists representing the International Journal of Engine Research have published an open-access editorial addressing the future of the Internal Combustion Engine, and stressing the importance for continued development of more efficient and even lower-emitting technologies. —Reitz et al.

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Study finds modern diesel cars emit fewer carbonaceous particulates than gasoline cars

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A new study by an international team led by researchers from the Paul Scherrer Institute (PSI) in Switzerland has found that modern diesel passenger cars equipped with diesel particulate filters (DPFs) emit fewer carbonaceous particulates than gasoline-powered vehicles. Pratt et al. 2017) Click to enlarge.

Gasoline 218
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CVR Energy selects Haldor Topsoe’s HydroFlex technology for revamp of Wynnewood refinery to renewable diesel, naphtha production

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CVR Energy will base a revamp of its Wynnewood, Oklahoma, refinery on Haldor Topsoe’s HydroFlex technology to produce approximately 100 million gallons of renewable diesel and more than 6 million gallons of renewable naphtha per year. Topsoe will deliver basic engineering, license, proprietary equipment and catalyst for HydroFlex.

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Recent on-road real-world emission testing in India highlights disparity between cycles, gasoline and diesel

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The results highlight the disparity between test-cycles and real-world emissions as well as the large disparity between gasoline and diesel vehicles. gNO x /km for gasoline; and 0.25 gNO x /km for a diesel vehicle with gross vehicle with GVWR x /km for a 7-seater diesel passenger vehicle. Source: The ICCT.

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Jaguar shares details about new Ingenium family of efficient gasoline and diesel engines

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Jaguar Land Rover has revealed some details about its new Ingenium family of efficient diesel and gasoline engines. The powerplants—designed, engineered and manufactured by Jaguar Land Rover—deliver class-leading levels of torque, horsepower and refinement while reducing emissions and fuel consumption.