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In a presentation at the SAE 2014 High Efficiency IC Engine Symposium and then in a paper given at SAE 2014 World Congress, Mark Sellnau, Engineering Manager, Delphi Advanced Powertrain, reported that Brake Specific Fuel Consumption for the 1.8L Vehicle fuel efficiency on FTP. +35% Earlier post , earlier post.). Background.
The dual-fuel PCCI strategy showed thermal efficiency of 53%. Emissions under the dual-fuel concept, at 11 bar IMEP. The horizontal axis shows the percentage of gasoline in the blend. Kalghatgi and his group explored both the use of low-cetane fuels and exhaust gas recirculation (SAE 2007-01-0006). Source: Rolf Reitz.
A team at the University of Madison-Wisconsin studied critical sooting equivalence ratios and subsequent particulate formation during spark-ignition combustion for blends of ethanol, isobutanol (2-methyl-1-propanol), and methylbutenol (2-methyl-3-buten-2-ol) with gasoline using premixed prevaporized (PMPV) fueling.
As part of the Federal Government’s response to a fire and shutdown at the bp Whiting Refinery in Whiting, Indiana, US Environmental Protection Agency (EPA) Administrator Michael Regan issued an emergency fuel waiver to help alleviate fuel shortages in four states the supply of gasoline of which has been impacted by the refinery shutdown.
Researchers at the University of Wisconsin Engine Research Center ( ERC ) led by Dr. Rolf Reitz are developing a dual-fuel compression-ignition engine low-temperature combustion (LTC) strategy called reactivity controlled compression ignition (RCCI) ( Earlier post.) of the fuel energy. —Rolf Reitz. Low-load conditions.
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. The commercially available gasoline base had an octane number of 87.
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. Earlier post.). —Splitter et al.
Researchers in China have generated gasolinefuel with a research octane number of 95.4 valerolactone (GVL)—the highest octane number reported for biomass-derived gasolinefuel—using an ionic liquid catalyst. The obtained gasoline was rich in trimethylpentane (isooctane), with the RON of 95.4.
A team from the University of Wisconsin and General Motors has found that high-speed gasoline direct injection compression ignition (GDICI) operation in the low temperature combustion (LTC) regime in a light-duty diesel engine is feasible. On the contrary, gasolinefuels have CN lower than 30 (or RON higher than 60).
RCCI is a promising dual-fuel, compression-ignition engine low-temperature combustion (LTC) strategy that uses in-cylinder fuel blending with at least two fuels of different reactivity and multiple injections to control in-cylinder fuel reactivity to optimize combustion phasing, duration and magnitude. Wissink et al.
Other fuels that play a role in commercial trucking include gasoline (23%) and compressed natural gas (0.4%). For gasoline vehicles that make up about a quarter of all commercial trucks (Class 3-8), more than half (57.5%) of those in operation are 2007 and newer model years. For the largest commercial trucks (Class 8), 62.5%
HEC) and Wisconsin Motors (WM) have signed an agreement to form Oxx Power Continental, a joint venture, to produce a wet-sleeve version of the Oxx Power 4.9L The new engines will be machined at V&L Tool in Wisconsin, and assembled at Wisconsin Motors’ facility in Dyer, Tennessee. Hydrogen Engine Center, Inc.
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. Earlier post.).
Knittel/Smith results for implied gasoline price effects from elimination of ethanol for 2010 using Du/Hayes model and pooled-sample estimates. Put simply, the empirical results merely reflect the fact that ethanol production increased during the sample period whereas the ratio of gasoline to crude oil prices decreased.
Virent has received fuel registration from the US Environmental Protection Agency (EPA) for its BioForm drop-in biogasoline in blends of up to 45%. As a registered fuel, Virents biogasoline can now be used in on-highway motor vehicles. Click to enlarge. Earlier post.) Bio-hydrocarbons Biogasoline'
Gautam Kalghatgi and his colleagues at Saudi Aramco provides further support a pathway for significant improvements in the efficiency of a gasoline engine (i.e., spark ignited, SI) by running it in compression ignition mode with naphtha fuels. Broadly, this approach is termed Gasoline Compression Ignition (GCI). Earlier post.)
A research team at the University of Wisconsin–Madison has identified a new way to convert ammonia to nitrogen gas through a process that could be a step toward ammonia replacing carbon-based fuels. Ammonia has been burned as a fuel source for many years. For a fuel cell, we want an electrical output, not input.
Researchers at the University of Wisconsin-Madison have investigated blending the benefits of reactivity controlled compression ignition (RCCI) and gasoline compression ignition (GCI) using QuantLogic’s novel adaptive dual-fuel injector which is capable of direct injecting both gasoline and diesel fuel in a single cycle.
Reaction pathways for conversion of GVL to butenes and CO 2 , and the integrated conversion of GVL to both a liquid stream of alkenes for use in transportation fuels and a gaseous stream rich in CO 2 that is appropriate for further processing options. Credit: Bond et al., Click to enlarge. It really is very simple. Jesse Bond.
Virent’s BioForming platform can produce drop-in gasoline, diesel or jet fuels from plant sugars. Virent has taken another step in the gasoline certification process, successfully completing its first road fleet test organized and executed by Virent collaborator and investor Royal Dutch Shell. Source: Virent.
In conjunction with the States of North Dakota, Minnesota, Wisconsin and Montana, Bakken Energy is working on the design of the Heartland Hydrogen Hub, a regional clean hydrogen hub recently announced by North Dakota Governor Doug Burgum. and Schneider National Carriers Inc.,
Strategy for the conversion of solid cellulose to liquid hydrocarbon fuels. Dumesic and his team earlier had reported a process for the catalytic upgrading of levulinic acid to 5-nonanone—a hydrophobic intermediate that can be catalytically upgraded to diesel and jet fuels—with the intermediate formation of ?-valerolactone
Virent has delivered 100 gallons of its bio-based jet fuel to the US Air Force Research Laboratory (AFRL) for testing purposes. The validation plan includes fit-for-purpose, fuel system and combustor rig testing. The plant was constructed at the company’s facility in Madison, Wisconsin under a $1.5-million
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.
The University of Wisconsin-Madison Hybrid Vehicle Team will work with the UW-Madison Engine Research Center to test implementations of Reactivity Controlled Compression Ignition (RCCI) engines being developed by UW mechanical engineering professor Rolf Reitz and his colleagues. One hurdle, though, will be the fuel infrastructure.
The North American recreational boating industry showcased three sustainable marine fuels during an opening day event at the Discover Boating Miami International Boat Show. Sustainable marine fuels minimize CO 2 emissions from recreational boating while maintaining boats’ range and performance. of US transportation CO 2 emissions.
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. Delphi is an industry leader in advanced powertrain technology development, with new gasoline direct injection (GDi) systems soon entering production.
The study was conducted by the University of California Riverside and the University of Wisconsin, Madison and commissioned by the Urban Air Initiative. The vehicle was operated on a Tier 3 E10 fuel, an E10 fuel with higher levels of aromatics than the Tier 3 E10, an E30, and an E78 blend. production. Durbin, Martin M.
Researchers from the University of Wisconsin-Madison and General Motors have extended the operation range for a light-duty diesel engine operating on gasoline using extended controllability of the injection process via a triple-pulse injection strategy. Earlier post.). Krieger, R. Engines doi: 10.4271/2012-01-1131.
A team from the University of Wisconsin-Madison, University of Massachusetts-Amherst and Gwangju Institute of Science and Technology of South Korea has demonstrated the feasibility of using proton-exchange-membrane (PEM) reactors electrocatalytically to reduce biomass-derived oxygenates into renewable fuels and chemicals.
E15 blended gasoline is now available in four of North Dakota’s larger cities. North Dakota is the ninth state to offer the fuel blend containing 15% ethanol and 85% gasoline. The others are Illinois, Iowa, Kansas, Michigan, Nebraska, North Carolina, South Dakota, and Wisconsin.
A paper on their initial results was published in the ACS journal Energy & Fuels. It also has physical and chemical properties that make it attractive as an additive and extender for motor fuels. GVL is also being examined as an intermediate for the production of transportation fuels. Earlier post.).
million for five projects to develop advanced biofuels and bioproducts that will help drive down the cost of producing gasoline, diesel, and jet fuel from biomass. Fractional collection of the fuel product allows for the different fractions to be used as blend-stock for gasoline, diesel, or jet fuel.
are electric, and the remainder are gasoline or other fuels. are powered by diesel, gasoline (22.9%), compressed natural gas (0.46%), other (ethanol, fuel cell, LNG, propane, 0.85%) and electric (0.09%). There isn’t a one-size or one-fuel fits all answer. are advanced diesel technology; 2.1% are CNG, 0.3%
The US Department of Energy (DOE) is awarding up to $12 million to fund three small-scale projects in Illinois, Wisconsin, and North Carolina that aim to commercialize novel conversion technologies to accelerate the development of advanced, drop-in biofuels and other valuable bio-based chemicals. Earlier post.) Earlier post.)
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).
and Shell have successfully started production at the first demonstration plant converting plant sugars into gasoline and gasoline blend components, rather than ethanol. The partnership with Shell has focused on optimizing the process for the production of gasoline-like molecules. Virent Energy Systems, Inc. Earlier post.)
The plant uses a thermo-catalytic process technology licensed from Shell commercial partner Virent, which is similar to the process being used at the Virent pilot plant in Madison, Wisconsin.
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.
Projects will work to lower emissions by leading the expansion of EV charging stations to facilitate the transition from fossil fuel-powered vehicles to electric vehicles. Development of a Flex Fuel Mixing Controlled Combustion System for Gasoline/Ethanol Blends Enabled by Prechamber Ignition. University of Wisconsin- Madison.
Researchers from the University of Wisconsin Madison and ExxonMobil Research and Engineering have devised a two-stage process by which an alcohol such as ethanol or 1-butanol can be converted with high yields into distillate-range ethers and olefins by combining Guerbet coupling (the coupling of two alcohol molecules) and intermolecular dehydration.
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.
Renewable fuels and chemicals company Virent and petroleum refiner and marketer Tesoro have reached an agreement for Tesoro to become Virent’s new strategic owner. The acquisition will support the scale-up and commercialization of Virent’s BioForming technology for the production of low carbon bio-based fuels and chemicals.
8,053,615, 8,017,818 and 7,977,517, cover the production of various liquid fuels and chemicals related to its recent announced partnership with The Coca-Cola Company ( earlier post ) and its ongoing partnership with Royal Dutch Shell ( earlier post ). Three of the patents, US Patent Nºs. The additional two patents, Patent Nºs.
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