Green Car Congress

AUGUST 3, 2009

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.

Wisconsin 225

Wisconsin Gasoline Diesel Universal 225

Green Car Congress

JUNE 29, 2013

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.

Light 207

Light Engine Wisconsin Fuel Economy 207

Green Car Congress

APRIL 29, 2013

In a paper presented at the 2013 SAE World Congress, a team from the University of Wisconsin reported a gross indicated thermal efficiency of Reactivity Controlled Compression Ignition (RCCI) operation of near 60%, given optimized combustion management and thermodynamic conditions. RCCI basics. Earlier post.). The 60% study.

Wisconsin 309

Wisconsin Congress 2013 Fuel 309

Green Car Congress

MAY 28, 2009

Najt, then at the University of Wisconsin, and David Foster published the first study of a gasoline-fueled four-stroke HCCI engine in 1983.). The auto-ignition occurs in multiple points throughout the charge, providing a parallel energy release without flame propagation. GM already has a strong diesel HCCI effort underway.

Range 150

Range GM 2009 Engine 150

Green Car Congress

JUNE 25, 2016

Researchers at Tsinghua University, along with Professor Rolf Reitz at the Engine Research Center, University of Wisconsin-Madison, have investigated for the first time the the characteristics of homogenous charge compression ignition (HCCI) of polyoxymethylene dimethyl ether (PODE). Wang et al. Click to enlarge.

Diesel 150

Diesel Fuel Gasoline Wisconsin 150

Green Car Congress

AUGUST 1, 2013

One high-efficiency combustion concept under investigation is gasoline compression ignition (GCI)—the use of gasoline-like fuels to deliver very low NO x and PM emissions as well as high efficiency in a diesel compression ignition engine. direct-injection light-duty diesel engine. Earlier post.) —Adams et al. Kalghatgi, G.,

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Gasoline Diesel Engine 2007 320

Green Car Congress

JUNE 19, 2013

Preliminary results from a new study by a team from Oak Ridge National Laboratory (ORNL) and the University of Wisconsin suggest that the fuel properties of moderate biofuel blends such as E20 and B20 increase the benefits of the use of Reactivity Controlled Compression Ignition (RCCI). Earlier post.). —Hanson et al.

Light 207

Light Engine Gasoline Wisconsin 207