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A team at Oak Ridge National Laboratory (ORNL) has achieved diesel-like efficiency in a single-cylinder spark-ignition (SI) research engine while maintaining compatibility with stoichiometric 3-way catalyst (TWC) systems. A paper on their work is published in the International Journal of Engine Research. Splitter et al.
By shifting the biggest gasoline users into ZEVs first, AB 2816 also reduces the total number of ZEVs that would be needed to reach the state’s near-term target of cutting light-duty vehicle emissions in half by 2030. California’s biggest gasoline users currently are on track to be the last people to switch to ZEVs.
California Assemblymembers Marc Berman (D-Menlo Park) and Lorena Gonzalez (D-San Diego) introduced legislation to phase out the sale of new gas-powered small off-road engines (SORE), which are primarily used in lawn and garden equipment, including leaf blowers, lawn mowers, and other outdoor power equipment. —Assemblymember Marc Berman.
In a paper being presented at WCX SAE World Congress Experience in Detroit this week, a team from MIT is proposing the use of a flex-fuel gasoline-alcohol engine approach for a series-hybrid powertrain for long-haul Class 8 trucks. Ethanol or methanol would be employed to increase knock resistance. —Daniel Cohn.
A study by European researchers has found that two-stroke (2S) scooters, although constituting a small fraction of the fleet, can dominate urban vehicular pollution through organic aerosol and aromatic emission factors up to thousands of times higher than from other vehicle classes. —Platt et al.
A study by a team of researchers from France and the US found that the origin of volatile hydrocarbons, other than methane, present in city air is mainly gasoline-powered vehicles. They therefore concluded that gasolineengines are probably the main source of volatile hydrocarbons in both cities. Borbon, A., Gilman, W.
The tailpipe real-world emissions were measured across four gasoline mid-sized sports utility vehicles from 2019 and 2020 model years, driven on a mix of urban and motorway routes. As testament to the filtration efficiency of the latest gasoline particulate filters (GPFs), tailpipe mass emissions are now as low as 0.02
The US Environmental Protection Agency (EPA) announced a proposed determination that emissions of lead from aircraft that operate on leaded fuel cause or contribute to air pollution that may reasonably be anticipated to endanger public health and welfare. EPA is not proposing aircraft engine lead emission standards with this action.
The researchers assessed the gaseous, particulate, and genotoxic pollutants from two current technology gasoline direct injection vehicles when tested in their original configuration and with a catalyzed gasoline particulate filter (GPF). liter downsized turbocharged centrally-mounted direct injection engine.
The demonstrator reduces pollutant emissions across a wide range of driving conditions using advanced emission control technologies with an electrified combustion engine (48V mild hybrid). liter gasolineengine with direct injection and a peak power of 110 kW, equipped with variable valve timing and cylinder deactivation.
Diesel is currently taxed at a lower level than gasoline in Europe; however, since 2011 the EC has been considering reversing that situation by making energy taxes systematically reflect the CO 2 performance of the energy product. As on a volumetric basis, diesel contains more carbon than gasoline, the tax on diesel fuel would increase.
The global market for sensors used in internal combustion engines (ICE) is on the road of steady growth for the next few years, propelled by increasing utilization in engine management and exhaust aftertreatment, according to a new report from IHS Technology. IHS projects that sensor shipments for ICEs will top 1.34 billion in 2013.
Based on on-road measurements in their study, a team from the University of California Berkeley has estimated that, as of 2010, light-duty (LD) gasoline vehicles were responsible for 85% of CO; 18% of NO x ; 18% of organic aerosol (OA); and 6% of black carbon (BC) emissions from on-road motor vehicles in the United States.
Comparison of brake thermal efficiency and specific fuel consumption at rated power (ICOMIA Mode 5), hydrogen vs. gasolineengines. Such an engine could provide a cost-effective solution for small recreational vehicle- and motorcycle applications. Oh and Plante. Click to enlarge. —Oh and Plante. g/kWh with a 3.3%
Petrobras launched new regular and premium ultra-low-sulfur gasoline throughout Brazil on 1 January 2014, entirely replacing the previous regular and premium gasoline. California, Europe, Japan, South Korea, and several other countries have gasoline sulfur limits of 10 ppm. Earlier post.). Click to enlarge. billion (US$8.7
PureTech 3-cylinder engine. Citroën is introducing the first members of its new PureTech family of three-cylinder gasolineengines on the C3, DS3 and C-Elysée (for international markets) ranges. The design brief for the new-generation PureTech engines called for a clean break in powertrain development. Click to enlarge.
Based on a three-year study of toxic and environmentally relevant pollutants from gasoline direct injection (GDI) engines, Swiss researchers have concluded that some GDI engines emit just as many soot particles as unfiltered diesel cars did in the past. Further, the GDI particles carry numerous carcinogenic substances.
Fiat is updating its 500L range for 2014 with two new turbocharged 120 hp (88 kW) engine options—the 1.6 T-Jet gasoline—and a dual fuel LPG/gasoline variant of the 1.4 MultiJet II engine offers a range of features to save fuel and cut emissions. MultiJet II turbodiesel and the 1.4 MultiJet II. New 120 HP 1.4
In a study on the effect of exhaust particles from aircraft turbine engines on human lung cells, Swiss researchers have found that cells reacted most strongly to particles emitted during ground idling. The study also showed that the cytotoxic effect is only to some extent comparable to that of particles from gasoline and diesel engines.
Thirty-seven globally prominent scientists representing the International Journal of Engine Research have published an open-access editorial addressing the future of the Internal Combustion Engine, and stressing the importance for continued development of more efficient and even lower-emitting technologies. —Reitz et al.
Audi remains convinced of the potential of the fuels e-gas, “e-benzin” (e-gasoline) and e-diesel and is continuing to pursue its e-fuels strategy. galons US), the largest batch yet produced—of synthetic Audi e-gasoline for initial engine tests. Audi “e-benzin” (e-gasoline) is essentially a liquid isooctane.
A “well-to-wheel” life cycle assessment (LCA) by a team from synthetic fuels producer Greyrock ( earlier post ), and the National Renewable Energy Laboratory (NREL) has determined the potential reduction of greenhouse gases and criteria pollutant emissions from the use of synthetic fuels directly converted from flare gas. Tan, E.C.D.,
Shell has developed a lead-free replacement for aviation gasoline (Avgas 100 and 100LL); the replacement fuel will now begin a strict regulatory approvals process. Leaded gasoline for automobiles was phased out of use in the US by 1995 due to its environmental and health impact.) Shell is the first major oil company to do so.
A scatter plot of CO, as a tracer for pollution, versus CO 2 , as a tracer for the amount of combustion, for 2002 and 2010. The magnitude of the drop in VOC levels was surprising, even to researchers who expected some kind of decrease resulting from California’s longtime efforts to control vehicle pollution. ppbv/ppmv to 10.7
has paid $329,700 in penalties for self-disclosed violations of California’s reformulated gasoline regulations. Chevron supplied gasoline in violation of state regulations at its Montebello and Richmond terminals. In both cases oxygenate volume of the gasoline was about 11%. The California Air Resources Board announced.
(M & M), India’s leading SUV manufacturer, revealed the new Mahindra KUV100 compact SUV, along with an all new engine family named mFALCON, marking the company’s entry into gasolineengine space. The introduction comes after India’s Supreme Court recently banned the sale of vehicles with diesel engines larger than 2.0
The California Air Resources Board approved a measure that will require most newly manufactured small off-road engines (SORE) such as those found in leaf blowers, lawn mowers and other equipment be zero emission starting in 2024. Older models on store shelves can also be purchased even if they are gasoline-powered.
a company that patented the use of propane canisters to fuel small engines, is introducing the first OEM marine outboard engines that run on propane. The first two engines are 2.5 Lehr propane-fueled outboard engine. Lehr, Inc., No choke, no priming, no carburetor gum-up & no winterizing. Click to enlarge.
gasolineengines. This engine configuration was found to not comply with certification emission standards when it was tested by CARB. FCA cooperated with CARB to resolve all allegations of violating Motor Vehicle Pollution Control Devices regulations. More than 30,000 vehicles were involved. The remaining $2.8
Infants born to women exposed to high levels of air pollution in the week before delivery are more likely to be admitted to a newborn intensive care unit (NICU), suggests an analysis by researchers at the US National Institutes of Health (NIH). Short-term exposure to most types of air pollutants may increase the risk for NICU admission.
A team at King Abdullah University of Science and Technology (KAUST) has developed a data-driven artificial intelligence (AI) framework to design liquid fuels exhibiting tailor-made properties for combustion engine applications to improve efficiency and lower carbon emissions. —Kuzhagaliyeva et al. Kuzhagaliyeva, N., Horváth, S.,
The green symbol and dashed arrow illustrate the large reductions in tailpipe VOC emission factors as precatalyst on-road gasoline vehicles were replaced by present-day vehicle fleets. Even so, lotions, paints and other products contribute about as much to air pollution as does the transportation sector. McDonald et al.
OWI Science for Fuels GmbH, TU Bergakademie Freiberg and RWTH Aachen University are investigating Methanol-to-gasoline (MtG) production for opportunities to optimize the process to produce ideal MtG fuels. Synthetically produced methanol-to-gasoline could be a carbon-neutral fuel option for passenger cars.
As part of the energy transition process and in line with the technological offensive spelled out in its Push to Pass strategic plan ( earlier post ), PSA Group will focus on diversifying its offerings with plug-in hybrid gasoline systems and next-generation electric powertrains. Earlier post.) Earlier post.).
unveiled the first dual-fuel, piston-powered aircraft to operate on both compressed natural gas (CNG) and aviation gasoline. to be at AirVenture, can be powered by CNG or 100LL aviation gasoline with the flip of a switch. The 200 hp Lycoming four-cylinder engine power the aircraft with a cruise speed of 143 mph.
A report released this week highlights the most significant breakthroughs of the last year in the US Department of Energy’s (DOE) Co-Optimization of Fuels & Engines (Co-Optima) initiative, with details on findings that could translate into significant greenhouse gas (GHG) and tailpipe emissions reductions. Source: DOE.
E-fuels are made by combining green hydrogen with CO 2 to produce liquid fuel that can be similar to gasoline or diesel used in conventional engines (as well as kerosene used in aviation). The emissions were compared to the standard E10 EU gasoline. However, said T&E, particle pollution was far from eliminated.
Scott Fruin, Neelakshi Hudda and colleagues noted that past research has measured pollution from air traffic before, but most of these studies only sampled air within a couple of miles, at most, from airports. The emissions from LAX are likely not unique on a per-activity basis.
Renault recently made public the findings of an internal study, published first in October 2011, detailing and comparing the lifecycle assessments (LCAs) of the battery-electric and two internal combustion engined versions (gasoline and diesel) of the Renault Fluence. Gasoline Fluence 16V. The Fluence is a 4-door, 5-seat sedan.
Overall, this study provides valuable insights on the impacts of ethanol content and gasoline composition on the exhaust emissions from a current technology GDI FFV. Their paper is published in the ACS journal Energy & Fuels. Regulated emissions for all test fuels over the cold-start and hot-start LA92 cycles. —Yang et al. 8b02206.
Hyundai Motor Group will collaborate with the Saudi Arabian Oil Company (Aramco) and King Abdullah University of Science and Technology (KAUST) jointly to research and develop an advanced fuel for an ultra lean-burn, spark-ignition engine that aims to lower the overall carbon dioxide emissions of a vehicle.
As part of the new technology to achieve this vision, the company disclosed plans to introduce a next-generation gasolineengine called SKYACTIV-X in 2019. This new proprietary combustion engine combines the advantages of gasoline and diesel engines to optimize environmental performance, power and acceleration performance.
The team made measurements of black carbon (BC) with a high-sensitivity laser-induced incandescence (HS-LII) instrument and a single particle soot photometer (SP2); measurements were conducted upwind, downwind, and while driving on a highway dominated by gasoline vehicles. —Liggio et al.
A new study by an international team led by researchers from the Paul Scherrer Institute (PSI) in Switzerland has found that modern diesel passenger cars equipped with diesel particulate filters (DPFs) emit fewer carbonaceous particulates than gasoline-powered vehicles. The open-access study is published in the journal Scientific Reports.
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