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University of Wisconsin Researchers Investigating Dual-Fuel (Gasoline and Diesel) Partially Premixed Combustion for High-Efficiency, Ultra-Low Emission Combustion; 53% Thermal Efficiency

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Researchers at the University of Wisconsin, led by Dr. Rolf Reitz, are investigating a blended dual-fuel (gasoline and diesel) concept to extend the operating range of partially premixed charge compression ignition combustion by using the varying fuel reactivity of the charge blend, which is determined in real time. Rolf Reitz.

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ORNL study finds multi-mode RCCI can offer 15%+ fuel economy improvements across multiple light-duty driving cycles

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Drive cycle fuel economy for PFI, CDC, and multi-mode RCCI operation. Among their findings were that multi-mode RCCI has the potential to offer greater than 15% fuel economy improvement over a 2009 gasoline PFI baseline over many light-duty driving cycles, despite the lack of complete drive cycle coverage for RCCI mode.

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DOE awards $4M to two DME projects

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The funded projects include: University of Wisconsin Madison for “Efficiency Mixing Controlled Compression Ignition Combustion of Propane DME Blends”. Beyond cleaner emissions, rDME from the Oberon Fuels process creates economic opportunity and jobs for rural economies by tying waste feedstock to multiple renewable fuel markets.

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Light duty RCCI can deliver engine-out Tier 2 Bin 5 NOx; potential for 52% gross indicated efficiency

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Rolf Reitz of the University of Wisconsin found that reactivity controlled compression ignition (RCCI) ( earlier post ) in a light-duty engine can meet Tier 2 Bin 5 NO x levels without aftertreatment, while offering a 4% improvement in fuel consumption and 7.3% Earlier post.). —Kokjohn and Reitz. Sage L Kokjohn and Rolf D.

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Delphi Receives Grant Offer From the Department of Energy for Gasoline Direct Compression Ignition Technology

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A key strategy for achieving the project goals will be a pioneering low-temperature gasoline combustion system that could help significantly improve light-duty vehicle fuel economy. The novel concept offers the potential for diesel-like efficiency while maintaining very low emissions. of Korea.

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DOE Announces Up to $13M in Funding for Six Advanced Combustion and Emissions Controls RD Projects

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The US Department of Energy (DOE) selected six cost-shared University Advanced Combustion and Emissions Controls research and development projects totaling up to $13 million in DOE funding, subject to annual appropriations. The following projects were selected for award negotiation and will be cost shared at a minimum of 20%.

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Achates Power wins $9M from ARPA-E to develop gasoline compression ignition medium-duty multi-cylinder opposed-piston engine

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This engine will also be more efficient than conventional diesel engines, but without the additional cost incurred by diesel fuel injection and complex exhaust aftertreatment. Although Achates’s work to date has been with diesel, its fundamental approach is suited for advanced combustion regimes using other fuels as well.

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