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Southwest Research Institute engineers have developed the next generation of clean dieselengine technology to reduce hazardous nitrogen oxides (NO x ) and carbon dioxide emissions while minimizing fuel consumption. g/hp-hr NO x emissions). g/hp-hr NO x emissions).
opposed-piston heavy-duty dieselengine has achieved performance results that comply with pending 2027 requirements of the US Environmental Protection Agency (EPA) and California to reduce sharply emissions of nitrogen oxides (NO x ). liter engine. Achates Power’s innovative 3-cylinder, 10.6L Rendering of the 10.6-liter
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.
A team from Empa - Swiss Federal Laboratories for Materials Science and Technology and FPT Motorenforschung reports in an open-access paper in the journal Fuel on the performance and emission characteristics of an 11-liter heavy-duty compression ignition engine which was optimized specifically for DME (dimethyl ether) combustion.
In early 2020, UK-based independent testing firm Emissions Analytics published a study claiming that tire particulate wear emissions were 1,000 times worse than exhaust emissions ( earlier post ). —Emissions Analytics. Quoting such ratios, however, needs careful interpretation.
liter, heavy-duty opposed-piston, three-cylinder dieselengine it developed in a project funded by the California Air Resources Board (CARB) and several partners ( earlier post ) has entered fleet service with WALMART Corporation in a Peterbilt 579 tractor. liter engine. Achates Power announced that the 10.6-liter,
for emissions-related violations affecting nearly 2,000 on-road and off-road dieselengines. The enforcement case began after the company informed CARB in 2015 that it had made unapproved repairs and modifications to CARB-certified on-road engines. The settlement includes a mandatory recall of affected vehicles and $6.4
Vitesco Technologies, formerly (until September 2019) the Continental Powertrain Division, has won a major contract from an European vehicle manufacturer for the supply of innovative electric heating elements for diesel catalytic converters. In the extremely slow “Traffic for London” cycle, NO x emissions fell by 62%.
million in DieselEmission Reduction Act (DERA) grants to public and private partners in California. The funds will be used to retrofit and replace old, pollutingdiesel vehicles and equipment, including school buses, heavy-duty trucks, tractors and port equipment. The US Environmental Protection Agency (EPA) awarded $9.6
2010 enginesemissions reduction relative to 2010, 2007, and 2004 US emission standards. For a number of the most important pollutants, levels were substantially lower than required by regulations. The study, the Phase 2 Report of the comprehensive Advanced Collaborative Emissions Study (ACES). Source: CRC.
Southwest Research Institute (SwRI) is helping a client develop a simple post-refinery treatment process that reduces exhaust emissions from dieselengines by overcoming the soot/nitrogen oxides (NO x ) reduction trade-off that has plagued engine researchers for decades.
Argonne National Laboratory is helping Caterpillar improve efficiency and reduce emissions in their heavy-duty dieselengines. Heavy-duty dieselengines still power most large vehicles used in the construction, mining and transportation industries in the United States.
liter dieselengine for use in FCA US’ Jeep Grand Cherokee and Ram 1500 vehicles that would be sold in the United States. liter dieselengine for use in FCA US’ Jeep Grand Cherokee and Ram 1500 vehicles that would be sold in the United States. liter diesel program’s goals, timing, and marketing strategy.
A recently released total fuel cycle analysis for maritime case studies shows that natural gas fuels reduce some air quality pollutants substantially, and reduce major greenhouse gas (GHG) emissions slightly, when compared to conventional petroleum-based marine fuels (low-sulfur and high-sulfur).
Empa, together with FPT Motorenforschung AG Arbon, Politechnico di Milano, lubricant manufacturer Motorex and other partners, is exporing the use of DME as a fuel for heavy-duty engines. A DME test engine has been in operation on a dynamometer in Empa’s Automotive Powertrains Technologies Laboratory. —Patrik Soltic.
Two-stroke diesel in test car. The objective of POWERFUl was to design engines for light-duty urban and micro-urban vehicles (segment A and B), capable of reducing CO 2 and criteria pollutantemissions. We have been able to reduce the engine weight by between 50 and 60% with regard to the equivalent four-stroke engine.
Under the Environmental Protection Agency (EPA) National Clean Diesel Rebate program, public and private school bus fleet owners are eligible to apply for funding to replace school buses that have older, dirtier Dieselengines. Many of the nation’s school buses use dieselengines, which are durable and long-lasting.
Detroit Diesel will pay $28.5 million in a settlement with the US Environmental Protection Agency (EPA) and the US Department of Justice (DOJ) to resolve alleged violations of the Clean Air Act for selling heavy-duty dieselengines that were not certified by EPA and did not meet applicable emission standards.
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 dieselengines.
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 pollutantemissions from the use of synthetic fuels directly converted from flare gas. 0.37, 42.4,
A research consortium led by Ford Research and Innovation Center Aachen is currently investigating the technical conditions under which diesel vehicles can run on dimethyl ether (DME) as an alternative fuel. With dynamic blending, even flex-fuel operation (diesel or DME/diesel) would be possible while retaining the original diesel system.
The California Air Resources Board has approved a multi-pronged regulation that will significantly reduce NO x emissions from heavy-duty diesel trucks. All components of the new rule will be phased in, allowing engine manufacturers time to prepare for compliance.
Eligible diesel vehicles, engines and equipment may include drayage trucks; marine engines; locomotives and non-road engines; and equipment or vehicles used in the handling of cargo at a marine or inland water port. Certified Engine Repower: up to 40% of the cost (labor and equipment) of an eligible engine repower.
The proposed regulation is intended to ensure reductions in smog-forming NO x and protect communities most impacted by air pollution. Highlights of the regulation include: Lower NO x and PM emission standards on existing regulatory cycles as well as a new NO x standard on a new low-load certification cycle. Source: CARB.
POWERFUL two-cylinder, two-stroke diesel. HYDIVU is a 48V mild-hybrid diesel solution to bring down consumption and emissions in LCVs. 48V mild-hybrid diesel LCV Click to enlarge. Downspeeding: this reduces the running speed of the internal combustion engine by lengthening the gear ratios. Click to enlarge.
The companies failed to install particulate filters on some of their heavy-duty diesel trucks and failed to verify that trucks they hired for use in California complied with the state rule. Heavy-duty trucks can emit drastically higher levels of pollution when not equipped with required emissions controls.
Volkswagen’s view of powertrain technologies to minimize greenhouse gas emissions. Areas of work being focused on by Volkswagen include the development of a high-performance dieselengine delivering 100 kW (134 hp) per liter of displacement and a new 10-speed dual clutch gearbox that reduces fuel consumption. Source: Prof.
ClearFlame Engine Technologies, a a startup developing net-zero engine technology ( earlier post ), successfully completed an on-road demonstration of its proprietary technology that enables a heavy-duty truck dieselengine to operate on low-carbon and carbon-negative fuels, including 100% renewable plant-based fuels.
The Health Effects Institute (HEI) has launched two new studies funded under RFA 21-1, Quantifying Real-World Impacts of Non-Tailpipe Particulate Matter Emissions. The new studies are: Improved Characterization of the Real-World Contributions and Impacts of Non-tailpipe Particulate Matter Emissions ,” led by Greg Evans, University of Toronto.
Southern California Gas Company (SoCalGas) announced it will be working together with Sierra Northern Railway, Gas Technology Institute (GTI), and other technical experts to develop and test a zero-emission hydrogen fuel cell engine for a switcher locomotive. Earlier post.).
The US Environmental Protection Agency (EPA), USDepartment of Justice (DOJ), and California Air Resources Board (CARB) announced a proposed settlement with Daimler AG and its American subsidiary Mercedes-Benz USA, LLC resolving alleged violations of the Clean Air Act and California law associated with emissions cheating.
Marine engine designer and power system integrator WinGD and engine builder Hyundai Heavy Industries’ Engine Machinery Division (HHI-EMD) will strengthen their collaboration by partnering to develop environmentally sustainable two-stroke engine technology. Up to 5g/kWh fuel consumption reduction in diesel mode.
The California Air Resources Board approved a new regulation designed to reduce pollution further from ocean-going vessels while docked at California’s busiest ports. That rule has achieved an 80% reduction in harmful emissions from more than 13,000 vessel visits since 2014.
Testing of two popular Euro 6d-temp diesels by Ricardo, commissioned by the environmental NGO Transport & Environment (T&E), has found that the periodic regeneration of diesel particulate filters (DPFs) in the light-duty vehicles can generate spikes of particulate emissions of more than 1,000 times the normal rate.
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.
The US Environmental Protection Agency (EPA) announced the availability of grant funding to implement projects which reduce emissions from the nation’s existing fleet of older dieselengines. Under this competition, EPA anticipates awarding between 40 and 70 assistance agreements.
In a recent open-access paper published in ACS’ Environmental Science & Technology , researchers from the University of York report that alcohols in windshield washer fluid account for a larger fraction of real-world vehicle emissions than previous estimates have suggested. Cliff et al. —Cliff et al.
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.
Several organizations, encompassing companies, research labs, and academia, have formed the Hydrogen Opposed Piston Engine Working Group. The Working Group consists of members undertaking research and development in the field of hydrogen combustion in an opposed-piston engine. The only criteria emission of concern is NO x.
The VW diesel scandal began on 18 September 2015. On the opening day of the Frankfurt International Motor Show (IAA), the US Environmental Protection Agency (EPA) published a Notice of Violation: VW dieselengines with 1.6 liters displacement (type code EA 189) contained illegal software designed to manipulate emissions.
Neste has signed an agreement to charter two new lower-emission product tankers from Terntank. At the refineries, products such as renewable diesel and sustainable aviation fuel (SAF) will be loaded for transport. The ships can operate on new low-emission fuels such as e-methanol to meet net-zero emission goals.
This option is an addition to the range of technologies and sustainable fuels that Irizar is currently offering, including electric buses, diesel coaches, biofuel, natural gas, HVO, hybrid, biofuel and B100. Beyond providing greater thermal performance than diesel, noise levels are also reduced by 50%.
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.
CO 2 and NO x certification test data for heavy-duty dieselengines certified from 2002 through 2019. The transportation sector was responsible for over 7 million tons of NO x emissions in the US in 2014, with 50% of this sector’s NO x attributed to heavy-duty on- and off-road vehicles and equipment. Chart: MECA.
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