Green Car Congress

DECEMBER 8, 2014

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.

Wisconsin 329

Wisconsin Exhaust Diesel Gas 329

Green Car Congress

AUGUST 5, 2010

Researchers at the University of Wisconsin led by Dr. Rolf Reitz are developing a dual-fuel compression engine combustion strategy called reactivity controlled compression ignition (RCCI) to simultaneously reduce fuel consumption and regulated emissions of NO x and PM. Tags: Diesel Engines Fuel Efficiency Fuels. Earlier post.).

Fuel 249

Fuel Wisconsin San Diego Exhaust 249

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.

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Light Engine Wisconsin Fuel Economy 207

Green Car Congress

AUGUST 4, 2016

L diesel engine modified to operate in the RCCI combustion mode. The light-duty diesel was equipped with the original high-pressure common rail injection system, high-pressure exhaust gas recirculation (EGR), variable geometry turbocharger and variable swirl actuation. Earlier post.).

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Diesel Emissions Engine Light 150

Green Car Congress

NOVEMBER 24, 2015

The unthrottled nature of the compression ignition process provides high engine efficiency while achieving compliant exhaust emissions with conventional, low-cost 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.

Gasoline 150

Gasoline Engine Powered Power 150

Green Car Congress

FEBRUARY 8, 2016

The process involves introduction of a low reactivity fuel into the cylinder to create a well-mixed charge of low reactivity fuel, air and recirculated exhaust gases. Both biofuels offered faster transient response to recover the CA50 to the steady-state CA50 value than gasoline or ultra-low sulfur diesel.

Gasoline 150

Gasoline Wisconsin Emissions Exhaust 150

Green Car Congress

SEPTEMBER 21, 2011

The K6 engine uses six strokes instead of four to reduce the pressure of exhaust gases, which allows it to harvest more energy rather than expelling it with the gas. Shedd said the engine could be up to about 30% more efficient than a standard diesel engine, depending on the engine load and speed. —Timothy Shedd.

Engine 186

Engine Diesel Standards Exhaust 186

Green Car Congress

APRIL 25, 2012

In 2010, The US Department of Energy (DOE) selected Delphi, along with partners Hyundai America Technical Center, Inc (HATCI); Wisconsin Engine Research Consultants (WERC); and the University of Wisconsin-Madison (UW) for a $7.48-million Click to enlarge. Earlier post.) For all tests, intake air temperature was 50 C. Sellnau et al.

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Gasoline Emissions Exhaust Wisconsin 236

Green Car Congress

FEBRUARY 5, 2016

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. The researchers suggested that further design optimization might enable the use of a standard diesel fuel instead of n-heptane. Earlier post.)

Engine 150

Engine Wisconsin Automobile Gasoline 150

Green Car Congress

JANUARY 5, 2015

Fuel usage over the drive cycles showed that nearly equal amounts of gasoline and diesel fuel would most likely need to be carried on board for RCCI multi-mode operation, which requires two fuels. Their paper is published in the International Journal of Engine Research. RCCI background. earlier post , earlier post ).

Fuel Economy 150

Fuel Economy Economy Light Fuel 150

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

Green Car Congress

MAY 26, 2022

According to Achates, a heavy-duty opposed-piston diesel engine (configured for ultralow NO x ) has peak thermal efficiency of just below 50%, centered around high load areas of the operating map, with broad areas of high efficiency (>45% brake thermal efficiency). Engine Research Center, University of Wisconsin-Madison, Madison, WI.

Hydrogen 353

Hydrogen Engine Saudi Arabia Universal 353

Green Car Congress

SEPTEMBER 18, 2015

Building on the SuperTruck activity, other projects aim at developing enabling technologies to improve the efficiency of heavy-duty diesel engines. The proposed research will develop a new computer model for prediction of exhaust emissions from internal combustion engines. Board of Regents of University of Wisconsin. Penn State.

Fuel 150

Fuel Carbon Fiber Lithium Ion Vehicles 150

Green Car Congress

MAY 4, 2009

Michigan Technological University (Houghton, Michigan) has been selected for negotiation of an award for a project to develop experimentally validated Diesel Particulate Filter and Selective Catalytic Reduction (SCR) models that support future vehicle On-Board Diagnostics and advanced control systems.

Emissions 150

Emissions Wisconsin Michigan Houston 150

Green Car Congress

MAY 2, 2014

Bengt Johansson at Lund University and others, has demonstrated that using low-octane gasoline in diesel engines has the potential to achieve very high efficiency while reducing the cost of diesel engines by lowering injection pressures and requiring less expensive exhaust aftertreatment.

Gasoline 210

Gasoline Fuel Light Diesel 210

Green Car Congress

APRIL 18, 2011

Currently, Achates has demonstrated a single-cylinder CI OPOC two-stroke engine that matches the engine-out emissions of an advanced 2010 medium-duty diesel while achieving specific oil consumption of less than 0.1% An external air compressor feeds compressed air to the conditioning unit where it is mixed with exhaust gas.

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Engine Concept Powered Power 199

Green Car Congress

OCTOBER 13, 2012

designed for Diesel Fuel (DF-2) operating with reduced performance with JP-8. As a result of these factors, power and torque output from a COTS diesel engine operated on JP-8 rather than DF-2 can be reduced on the order of 5%. (In Small companies do not have the capability to perform basic fundamental research. —Mike Kweon.

Engine 236

Engine Design Fuel Diesel 236

Green Car Congress

AUGUST 16, 2016

Demonstrate plug‐in electric vehicles through local showcases in key markets throughout major metropolitan areas in seven Midwest states: Ohio, Michigan, Indiana, Illinois, Wisconsin, Minnesota, and North Dakota. valve faces, piston crowns, and exhaust ports) to improve fuel economy. Drive Oregon. HRL Laboratories, LLC. Description.

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Vehicles Plug-in Lithium Ion Universal 150

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.). GM already has a strong diesel HCCI effort underway. With the diesel, its more an evolutionary process rather than more of a step process ,” aid Najt.

Range 150

Range GM 2009 Engine 150

Green Car Congress

AUGUST 10, 2011

Wisconsin Engine Research Consultants LLC. This project will optimize fuel-based control of novel combustion strategies in light- and heavy-duty vehicles to enable diesel-like efficiencies with ultra-low engine-out emissions. valve train vs. bearings). UChicago Argonne LLC. Solid state thermoelectric energy conversion devices.

Carbon Fiber 268

Carbon Fiber Lithium Ion Li-ion Vehicles 268

Green Car Congress

JULY 17, 2015

The alternative-fuel car evolved to reduce exhaust emissions and other problems derived from burning fossil fuels. Though the PHEV combines the two types of energy and power, it is not merely a temporary “transition” between gasoline and diesel cars to pure electric cars. by Professor Andrew Alfonso Frank. It is much more than that.

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PHEV Plug-in Renewable Energy 150