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Study finds E20 offers higher peak load capacity and thermal efficiency than gasoline in RCCI combustion

Green Car Congress

Among their findings was that E20 offers higher peak load capability and thermal efficiency than gasoline. RCCI, a dual-fuel combustion technology developed by Dr. Rolf Reitz and colleagues, is a variant of Homogeneous Charge Compression Ignition (HCCI).

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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

Green Car Congress

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.

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

Green Car Congress

Achates Power, the developer of a family of two-stroke compression-ignition opposed-piston engines ( earlier post ), has been selected by APRA-E under its OPEN 2015 solicitation ( earlier post ) for an award of more than $9 million to develop a multi-cylinder opposed piston engine operating with compression ignition that uses gasoline as the fuel.

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UW Madison team investigates cycle-to-cycle combustion instability in HCCI and RCCI

Green Car Congress

Researchers at the University of Wisconsin-Madison have used computational fluid dynamics modeling to investigate cycle-to-cycle instability of homogeneous charge compression ignition (HCCI) and reactivity-controlled compression ignition (RCCI) engines—two approaches to low-temperature combustion.

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Study shows viability of RCCI in a two-stroke engine; higher efficiency than direct-injection spark ignition

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A team at the Engine Research Center (ERC), University of Wisconsin-Madison has demonstrated the viability of reactivity-controlled compression ignition (RCCI) in a two-stroke engine. However, RCCI experiments with gasoline and n-heptane (higher volatility) proved to be successful. Earlier post.)

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

Green Car Congress

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. During RCCI-only operation, fuel usage was found to be between 57 and 69% gasoline.

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

Green Car Congress

The University of Michigan (Ann Arbor, Michigan) has been selected for negotiation of an award for a project to explore new high-pressure lean burn combustion that can enable future gasoline engines to achieve 20-40% improved fuel economy. Team members include the University of Wisconsin (principal investigator), Caterpillar, Inc.,

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