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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 exhaustemissions ( earlier post ). —Emissions Analytics. Quoting such ratios, however, needs careful interpretation.
After a week-long meeting of an expert working group, the International Agency for Research on Cancer (IARC), which is part of the World Health Organization (WHO), classified diesel engine exhaust (DEE) as carcinogenic to humans (Group 1), based on sufficient evidence that exposure is associated with an increased risk for lung cancer.
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.
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.
In 2012, the International Agency for Research on Cancer (IARC), which is part of the World Health Organization (WHO), classified diesel engine exhaust (DEE) as carcinogenic to humans (Group 1). Diesel Emissions Health' Earlier post.). China, India, Brazil) following with a delay of about 5 to 10 years.
As part of the Horizon 2020 research project CARES (City Air Remote Emission Sensing), an international research consortium is working on new contactless exhaust measurement methods that will enable municipalities to take emission-reducing measures. ICCT (International Council on Clean Transportation; DE).
Researchers at EPFL have patented a new concept that could cut trucks’ CO 2 emissions by almost 90%. The EPFL system captures CO 2 directly in the trucks’ exhaust system and liquefies it in a box on the vehicle’s roof. First, the vehicle’s flue gases in the exhaust pipe are cooled down and the water is separated from the gases.
At InnoTrans 2018, the International Trade Fair for Transport Technology, MAN Engines is exhibiting the D3876 LE63x for locomotives, which produces 471 kW (632 hp) at 1,800 rpm. This means that a single technical solution equally covers emission requirements for all currently recognised emissions threshold values up to EU Stage V.
With SCR twin dosing technology in the exhaust gas system, the diesel unit now undercuts the Euro 6d emission standard limits while also running quietly and smoothly, according to the company. The four-cylinder TDI engine with the internal designation EA 288 made its debut in 2012.
Volkswagen has launched a new range of diesel engines (TDI) characterized by extremely low nitrogen oxide emissions (NO x ). The Touareg V8 TDI, generating 310 kW (421 PS) ( earlier post ), is among the first Volkswagens to feature an exhaust purification system that brings NO x to these low level: it emits between just 0.01
CAT-DEF—Catalyzed Diesel Exhaust Fluid—is an SwRI-developed catalyst- and surfactant-modified diesel exhaust fluid (DEF) solution. The internally funded advancement successfully reduced heavy-duty diesel engine nitrogen oxide (NO x ) emissions to meet the California Air Resources Board (CARB) 2027 standards.
Power management company Eaton’s Vehicle Group has demonstrated cylinder deactivation (CDA) as an effective technology for meeting future global emissions requirements for diesel-engine powered commercial vehicles. New emissions regulations spearheaded by the California Air Resources Board (CARB), U.S. Rapid catalyst warm-up essential.
FlyZero is the UK’s Aerospace Technology Institute (ATI) project aiming to realize zero-carbon emission commercial aviation by 2030. Funded by the Department for Business, Energy and Industrial Strategy, the project FlyZero began in early 2021 as an intensive research project investigating zero-carbon emission commercial flight.
Regulatory regimes seeking to reduce emissions from transport have largely focused on tailpipe emissions—i.e., the criteria pollutants and CO 2 that emerge with the exhaust from the tailpipe. Non-exhaust PM factors include tire wear, brake wear, road surface wear and resuspension of road dust. earlier post ). Background.
Freight transportation is a pillar of the US national economy, but while long-haul trucks account for less than 6% of the vehicle miles traveled over US highways, they account for about 40% of the emissions of air polluting particulate matter and about 55% of nitrogen oxides, the precursor to ozone in the atmosphere, the study said.
In a paper presented at the 2019 Vienna Motor Symposium this week, Delphi Technologies will unveil a new 500+ bar GDi system that can reduce particulate emissions by up to 50% compared to state-of-the-art 350 bar system without expensive engine design modifications. Delphi 500+ bar GDi pump. Delphi 500+ bar GDi injector. —Walter Piock.
m -2 , is the second-most important human emission in terms of its climate-forcing in the present-day atmosphere. Only carbon dioxide has a greater forcing, the international team of researchers who performed the study found. Source: Bond et al. Click to enlarge. m -2 with 90% uncertainty bounds of +0.17 —Bond et al. Bond et al.
In Japan, Toyota and other automotive-related companies are about to begin a collaborative effort to expand the range of fuel options for internal combustion engines. At the same time, ‘Motor’ is in our company name and we accordingly have a strong passion for and level of commitment to the internal combustion engine. Earlier post.).
An electrically driven compressor for precise exhaust gas recirculation is also used. Then we modify the timing and pressure of the injection, among other things, and look at exhaustemission values and fuel consumption. This is done via exhaust gas recirculation (EGR). —Patrik Soltic.
Southwest Research Institute (SwRI) announced preliminary test results of its Dedicated-Exhaust Gas Recirculation (D-EGR) demonstration vehicle ( earlier post ) at the SAE 2014 World Congress in Detroit. Terry Alger, assistant director in SwRI’s Engine, Emissions and Vehicle Research Division. Overall, the engine offered a 13.1%
CVVD optimizes both engine performance and fuel efficiency while reducing emissions. The technology cuts emissions by 12%. The new powertrain is the first to utilize the Group’s new CVVD technology and also features Low-Pressure Exhaust Gas Recirculation (LP EGR) to further optimize fuel efficiency.
New research from Chalmers University of Technology, Sweden, finds that the discharge water from ships’ exhaust gas treatment systems—i.e., scrubbers—is responsible for up to 9% of certain emissions of carcinogenic and environmentally harmful substances in the Baltic Sea—considerably more than was previously known.
Eberspaecher Exhaust Technology International GmbH and China Yuchai International Limited will form a joint venture company: Eberspaecher Yuchai Exhaust Technology. The new exhaustemission control systems are combination systems under China National 6. Ltd—holding the remaining 49%.
The result is a set of usable conversion factors for distance-based CO 2 emissions among the different driving cycles. For the study, the ICCT team simulated CO 2 and efficiency results over the test cycles for a variety of vehicle and technology packages using a vehicle emission model developed by Ricardo Engineering.
A new study by a team from the University of Edinburgh and independent engineering company INNAS BV has found that, when factoring in the additional weight and non-exhaust PM factors, total PM 10 emissions from electric vehicles (EVs) are equal to those of modern internal combustion engine vehicles (ICEVs). Click to enlarge.
By 2030, the Rolls-Royce business unit is to cut greenhouse gas emissions by 35% compared to its 2019 level through the use of new net zero and zero carbon technologies. Or it relates to fuels such as hydrogen, that would not at all emit CO 2 at the exhaust pipe. Switch to alternatives for combustion engines.
Vitesco Technologies, a leading international supplier of advanced powertrain technologies and electrification solutions, is now making electrical catalyst heating available in high-voltage hybrid vehicles as well. The challenge of plug-in hybrids: CO 2 efficiency and low cold engine start emissions.
LTC regimes are seen as a promising low-emissions, fuel-efficient alternatives to conventional diesel combustion. The researchers started the study, reported in the International Journal of Engine Research , to investigate the potential influence this effect could have on the emissions levels.
The partnership with AVL has already resulted in bringing to production the TECO Future Funnel, a complete exhaust gas cleaning system. TECO 2030 focuses on one of the biggest environmental challenges of our time: How to combine ever-increasing shipping volumes with reduced emissions? The plan is to start fuel cell production in 2022.
This is the first Ford engine to utilize a low-inertia twin-scroll turbocharger that provides quicker boost response while enabling lower emissions and improved efficiency. The cylinder head features an integrated exhaust manifold that separates the inner and outer pairs of cylinders into each inlet passage to the turbo. Transmissions.
Southwest Research Institute (SwRI) is helping a client develop a simple post-refinery treatment process that reduces exhaustemissions from diesel engines by overcoming the soot/nitrogen oxides (NO x ) reduction trade-off that has plagued engine researchers for decades.
Ammonia is a promising carbon–neutral fuel, able to power heavy-duty vehicles, non-road machineries and ocean ships with zero CO 2 emission. However, practical challenges still exist when applying ammonia in traditional internal combustion engines (ICEs) due to its high ignition energy, slow flame propagation and significant NO x emissions.
A study by researchers at the University of Birmingham in the UK has found that while Diesel Oxidation Catalysts (DOCs) and Diesel Particle Filters (DPFs) has been very effective in controlling the tailpipe emissions of solid particles, there has been little change in the liquid mode ( 104 cm −3 /24-hour mean) defined by WHO. 2023.107888
Southwest Research Institute has expanded its capability to evaluate internal combustion engine aftertreatment catalysts, integrating an existing SwRI technology with a mass spectrometer. The mass spectrometer can detect a broader range of exhaust components, allowing a more complete picture of aftertreatment system performance.
liter, twin-turbo, inline, six-cylinder engine, named Hurricane, that delivers better fuel economy and fewer emissions than larger engines while at the same time generates more horsepower and torque than many competitors’ naturally aspirated V-8 and boosted six-cylinder power plants. Stellantis revealed its new, 3.0-liter, of torque).
The results of a new analysis by the International Council on Clean Transportation (ICCT) show that, when combined with a trend toward higher methane leakage and combustion slip, there is no climate benefit from using liquefied natural gas (LNG) as a marine fuel—regardless of the engine technology. First, it contains very little sulfur.
million project to find new catalytic materials that work at lower exhaust temperatures, allowing automakers to build vehicles that operate more efficiently while retaining the ability to clean emissions before they leave the tailpipe. Catalytic converters clean vehicle exhaust into nitrogen, water and carbon dioxide.
Schlumberger has entered into an agreement with RTI International , a nonprofit research institute, to accelerate the industrialization and scale-up of its proprietary non-aqueous solvent (NAS) technology, which enhances the efficiency of absorption-based carbon capture.
The catalyst removes the gaseous pollutants and now also solids such as particulates from the exhaust gas flow. The well-known three-way conversion catalyst—in use in North America since 1976 and in Europe since 1986—is now capable of removing considerably more than 95% of the undesired substances from the exhaust gas flow.
Their paper was presented at the ASME Internal Combustion Engine Division 2012 Fall Technical Conference by Marcello Canova, assistant professor at OSU; lead author was Philipp Skarke, from the University of Stuttgart Institute for Internal Combustion Engines and Automotive Engineering. Exhaust gas exergy map of EcoCAR engine.
A paper on their work is published in the International Journal of Engine Research. 1) with cooled exhaust gas recirculation (EGR) and high compression ratio (13.3:1 domestic NO x emission regulations for medium- and heavy-duty vehicles by an order of magnitude by 2027. The unique high stroke-to-bore engine design (1.5:1)
Toyota introduced the next-generation three-row 2020 Highlander SUV at the New York International Auto Show. The gas engine employs Variable Valve Timing-intelligent system by Electric motor (VVT-iE) on the intake camshaft, and VVT-i on the exhaust camshaft. This technology reduces fuel consumption and cuts emissions.
Five technology paths for very-low-NO x and GHG emissions from heavy-duty natural gas engines. The “Pathways to Near-Zero-Emission Natural Gas Heavy Duty Vehicles” report, authored by GNA on behalf of Southern California Gas Co. An 80% reduction of GHG emissions is targeted for 2050, relative to 1990 levels. Click to enlarge.
It applies high-reliability fuel injection system technology, electric-driven closed recirculation technology and advanced exhaust gas recirculation technology to prevent the occurrence of problems such as difficult ignition and unstable combustion in ammonia-fueled internal combustion engines.
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