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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. 2022.124638.
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, gasoline fuels have CN lower than 30 (or RON higher than 60).
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. Source: Rolf Reitz.
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. —Splitter et al.
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. Earlier post.)
GDCI engine was significantly better than advanced production spark injection gasoline engines, and comparable to very efficient hybrid vehicle engines at their best efficiency conditions (214 g/kWh). This early work established that gasoline-like fuels with high resistance to autoignition are preferred for PPCI. Background.
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.) Gasoline-diesel operation was demonstrated at engine loads up to 14.5
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.
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 in China have generated gasoline fuel with a research octane number of 95.4 valerolactone (GVL)—the highest octane number reported for biomass-derived gasoline fuel—using an ionic liquid catalyst. The obtained gasoline was rich in trimethylpentane (isooctane), with the RON of 95.4. from biomass-derived ?-valerolactone
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.
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. Electric and other categories each register less than 1%.
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.
Researchers at the University of Wisconsin–Madison led by James Dumesic have developed a catalytic process to convert cellulose into liquid hydrocarbon fuels (diesel and gasoline), using a cascade strategy to achieve the progressive removal of oxygen from biomass, allowing the control of reactivity and facilitating the separation of products.
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. However, burning ammonia releases toxic nitrogen oxide gases.
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. Click to enlarge.
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.
Researchers at the University of Wisconsin, led by Dr. James Dumesic, have developed a process to convert aqueous solutions of ?-valerolactone GVL retains 97% of the energy content of glucose and performs comparably to ethanol when used as a blending agent (10% v/v) in conventional gasoline. Credit: Bond et al., Click to enlarge.
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.,
A new study by Dr. 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., Broadly, this approach is termed Gasoline Compression Ignition (GCI). spark ignited, SI) by running it in compression ignition mode with naphtha fuels.
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.
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.).
Virent BioForm Gasoline blended with conventional gasoline underwent testing at Southwest Research Institute (SWRI) with the results demonstrating that the emissions from the blended fuel were well below the maximum permitted by current regulations. The EPA testing work was funded by Virent partner Royal Dutch Shell.
The vapor pressure of this fluid is relatively low when compared with ethanol; thus the fluid, when mixed with gasoline, will result in lower VOC emissions in storage, since it serves as a “keeper”. Conversely to the effect on diesel fuel, the additive shifts the distillation curve of gasoline to higher temperatures.
CR Gasoline, in which gasoline was injected through the higher-pressure common rail injector, allowing for much later injections of large quantities of gasoline. This allows for stratification of the gasoline charge before any diesel is injected. One caveat is that the CR Gasoline case was not optimized.
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.
[Editor’s note: After reading Dave Reichmuth’s most recent piece, I started thinking about a comparable study on Wisconsin land use. continued] The post Driving On Electricity Is Now Much Cleaner Than Using A Gasoline Car appeared first on CleanTechnica. However, a.
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.
The study was conducted by the University of California Riverside and the University of Wisconsin, Madison and commissioned by the Urban Air Initiative. The fact that simply adding more ethanol to gasoline can reduce emissions and improve public health is a story that every driver needs to hear. Jiacheng Yang, Patrick Roth, Thomas D.
Among their findings was that E20 offers higher peak load capability and thermal efficiency than gasoline. In the newly reported study, they examined in-cylinder fuel blending with port fuel injection of gasoline or E20 and early-cycle, direct injection of ultra-low sulfur diesel or B20.
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. Earlier post.).
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. Virent Energy Systems, Inc.
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 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. Earlier post.). —Glenn Bower.
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.
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%). are advanced diesel technology; 2.1% are CNG, 0.3% California lags the national average, taking the 35 th spot (51.6%).
The plant was constructed at the company’s facility in Madison, Wisconsin under a $1.5-million Its Madison facility also houses a 10,000 gallon per year system that is optimized to produce gasoline and aromatic chemicals. Design, engineering and construction were performed in-house by Virent employees.
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.
Emphasis in the next five years will be on bringing new methods and discoveries to maturity, developing new lines of research, and accelerating the transformation of scientific breakthroughs into new technologies that can transition to the marketplace.
The three drop‐in fuels demonstrated during the Miami event were: PurFuels Ethanol‐Free Reformulated Gasoline using Isobutanol (GEVO) and TXCeed corrosion inhibitor: A blend of 16.1% biobutanol and gasoline that reduces CO 2 emissions by up to 30% relative to conventional fossil‐based gasoline.
Its patented technology features catalytic chemistry to convert plant-based materials into a full range of products identical to those made from petroleum, including gasoline, diesel, jet fuel, and chemicals for plastics and fibers.
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.).
Virent’s production of paraxylene at its Madison, Wisconsin laboratory, has reached a capacity of 10 tons per year which will allow Virent to serve the needs of multiple collaborators for product validation and market demonstrations. The company has broadened its product offerings for renewable chemicals through this process.
Development of a Flex Fuel Mixing Controlled Combustion System for Gasoline/Ethanol Blends Enabled by Prechamber Ignition. University of Wisconsin- Madison. Simultaneous Greenhouse Gas and Criteria Pollutants Emissions Reduction for Off-Road Powertrains. Marquette University. John Deere. WM International Engineering LLC. 1,994,690.
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