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An electric exhaust gas turbocharger, which in future will be used for the first time in a series production model, is already in the final stages of development. This electronically-controlled electric motor drives the compressor wheel before this accepts the exhaust gas flow.
A new study by researchers from Stockholm University concludes that automobile tires may be a potential previously unknown source of carcinogenic dibenzopyrenes—a type of high molecular weight polycyclic aromatic hydrocarbon (PAH)—to the environment. Non-exhaust traffic sources of particles. 60% rubber polymers; 20?
The SL 43 features an M139 in-line two-liter, four-cylinder gasoline engine with an electric exhaust gas turbocharger—used for the first time in a production vehicle. The electric exhaust gas turbocharger is a fascinating example of the extensive transfer between Formula 1 technology and the development of production vehicles.
Exhaust particle size distributions measured by ELPI (color map) and particle concentration measured by CPC (white line) during individual engine braking conditions (speed change from 32 km/h to 0 km/h). The exhaust sample was taken from the exhaust manifold. The exhaust sample was taken from the exhaust manifold.
Metal particles from the abrasion of brake pads (brake abrasion dust, BAD) may cause inflammation and reduce the ability of immune cells to kill bacteria, similarly to particles derived from diesel exhaust particles (DEP), according to a new study led by researchers at King’s College London. It is estimated that only 7% of PM 2.5
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). Earlier post.). Diesel Emissions Health'
A new report released by the Air Quality Expert Group ( AQEG ) in the UK recommends as an immediate priority that non-exhaust emissions (NEE) are recognized as a source of ambient concentrations of airborne PM, even for vehicles with zero exhaust emissions of particles. —“Non-Exhaust Emissions from Road Traffic”.
Black carbon has a negative impact on the environment and on human health. In addition, the inhomogeneity of the fuel mixture under stratified operation in GDI engines during the compression stroke tends to contribute to higher particulate emissions compared to the exhaust emissions from traditional PFI engines. Earlier post.).
The scientists showed that there are a number of organic molecules from diverse sources present in modern concrete structures and asphalt pavements: phthalates, diesel exhaust particulates, surfactants, and windshield washer fluids.
liter turbocharged M139 engine featuring an electric exhaust gas turbocharger. The electric exhaust gas turbocharger solves the conventional trade-off between a small, responsive turbocharger yielding a lower total output and a large turbocharger capable of high peak power with less responsiveness. An electric motor around 1.6
In 2020, independent global emissions testing company Emissions Analytics reported that pollution from tire wear can be 1,000 times worse than what comes out of a car’s exhaust. Earlier post.) NEEs are currently believed to constitute the majority of primary particulate matter from road transport, according to Emissions Analytics.
However, when it comes to the development of e-drivetrains, BMW Group has essentially exhausted the opportunities for this form of technology transfer in the competitive environment of Formula E. Furthermore, the strategic focus of BMW Group is shifting within the field of e-mobility.
The open-access paper is published in Nature Communications Earth & Environment. Unlike exhaust from burning coal and gas that contains CO 2 , burning hydrogen emits only water vapor and oxygen. Commun Earth Environ 4, 203 doi: 10.1038/s43247-023-00857-8 —Dr Sand Resources Sand, M., Skeie, R.B., Sandstad, M.
Researchers at Imperial College London, working with colleagues from King’s College London and University of British Columbia, have demonstrated a mechanism by which diesel exhaust particles directly affect the lungs to initiate symptoms such as a tightening of the airways and cough. Robinson, Mark A. Birrell, John J. Adcock, Michael A.
Long-term residential exposure to locally emitted black carbon (BC) from traffic exhaust increases the risk of stroke even in low-pollution environments, according to a study by researchers at Karolinska Institutet and other universities in Sweden. g/m 3 ) of black carbon from traffic exhaust, the risk of stroke increased by 4%.
The electric power makes it possible to work comfortably in various work environments without worrying about noise and exhaust emissions, and is expected to be used for work in urban areas and nighttime construction work, etc. The zero engine vibration will also help reduce operator fatigue.
the criteria pollutants and CO 2 that emerge with the exhaust from the tailpipe. However, there is more than 15 years of research showing that the contribution of non-exhaust primary particles to the total traffic generated primary particles is significant in urban areas. Further, a 2013 review by Denier van der Gon et al. Background.
New research from Chalmers University of Technology, Sweden, finds that the discharge water from ships’ exhaust gas treatment systems—i.e., For many years, we’ve flagged the fact that scrubbers account for disproportionately large emissions of hazardous and acidifying substances into the marine environment.
with technologies such as direct fuel injection, variable valve timing, exhaust-driven turbochargers, brake energy regeneration and Auto Start Stop function—about 60% of the generated energy is still lost, half of it being exhaust heat, with the remaining half as heat absorbed by the engine cooling system. Click to enlarge.
In a high-temperature environment, any fuel will behave like diesel fuel, having short ignition delay and burning as it is injected in a mixing fuel plume. ClearFlame uses soot-free “Clear” Exhaust Gas Recirculation (EGR) to maintain this ratio under varying load conditions. In fact, it increases power by 25%.
Stena Line is seeking novel, cost-effective approaches to recover energy from exhaust gases from ship engines and to transform it into a more useful energy form (e.g., The company is also interested in efficient turbine systems that generate electricity from the kinetic energy from the massflow and velocity of the exhaust gases.
Help Your Fuel Economy & the Environment. If you’re driving down the road and you notice a quiet car in front of you, you should know that the car’s exhaust system is doing its job. A well-maintained exhaust system is essential in making your ride safe and sound. What does a car exhaust do? Exhaust Manifold.
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.
This shows that electric buses are already a viable solution for cities that want public transport with long-term sustainability—buses that make concrete improvements to the environment. They will operate on route 5 and 7 in Malmö.
In an open access study published in the journal Particle and Fibre Toxicology , a team from the University of British Columbia investigated the short-term effects of diesel exhaust inhalation on DNA methylation levels at CpG sites across the genome in circulating blood in asthmatics. —Chris Carlsten.
While transportation is responsible for a quarter of global emissions, buses and diesel buses in particular play an outsized role in producing emissions that negatively impact the climate and environment. Electric buses also offer the passenger less vibration, less noise, and zero exhaust.
Future fuel economy standards will result in lower exhaust gas temperatures and limit the use of high-temperature SCR. SwRI and UTSA plan to develop a novel catalyst for low-temperature SCR to reduce emissions. To date, seven projects have been funded totaling $1,230,863.
According to the Environmental Protection Agency, nitrogen oxides are harmful to human health and the environment. While the aftertreatment configuration provided a potential solution to meet the ULN target, a complicated approach was required to overcome challenges from low temperature exhaust.
Bucher Municipal is expecting that up to 80 sewer trucks, or 50% of their production of cleaning vehicles, will be zero exhaust emission trucks from Volvo by the end of 2023. —Per Lovring, CEO of Bucher Municipal Denmark. Volvo Trucks goal is that electric models will account for half of its truck sales in 2030.
The cooling system is integrated with the engine cooling system and the motor will be tested in this environment and validated between -40 °C and +120 °C. Unlike a turbocharger, Cobra is not dependent on the exhaust gases flowing to do its work. The design specification provides a peak shaft power of 5.6
The fourth stroke omits the conventional exhaust event in order to recompress the combustion gases. They made several modifications to switch between 4-stroke and 6-stroke cycles, the most significant of which were the actuation of the intake and exhaust valves.
Previous noise-level measurements had indicated that disturbance from low-frequency noise in indoor environments was present in the residential area. —Kerstin Persson Waye, Professor of Environmental Medicine at Sahlgrenska Academy, University of Gothenburg, who heads the Sound Environment and Health group that conducted the research.
Europe’s transport sector is making only mixed progress in meeting its environment, health and climate policy targets, according to the latest European Environment Agency (EEA) assessment which tracks the short and long-term environmental performance of this key economic sector across the European Union.
Other sustainable solutions such as battery energy storage systems, hybrid propulsion systems for marine and rail applications and microgrids already feature in the Power Systems portfolio for decentralized, environment-friendly power solutions. Or it relates to fuels such as hydrogen, that would not at all emit CO 2 at the exhaust pipe.
The conventional hybrid offers up to 37% fuel savings compared to a diesel version and 40-50% lower exhaust emissions. In addition to the significant energy savings and reduced impact on the environment, this technology gives passengers a more comfortable and pleasant journey and improves the working environment of the drivers.
According to the European Environment Agency (EEA), maritime transport is responsible for more than 3% of the total carbon emissions in the European Union. It is then fed into the engine, which it drives by burning in a conventional combustion engine and generates absolutely no exhaust gases that are harmful to the climate.
In a high-temperature environment, any fuel will behave like diesel fuel, having short ignition delay and burning as it is injected in a mixing fuel plume. ClearFlame uses soot-free “Clear” Exhaust Gas Recirculation (EGR) to maintain this ratio under varying load conditions.
Emissions from automobile exhaust systems have decreased in recent years due to the introduction of cleaner fuels and new control technologies on internal combustion engines, as well as increases in numbers of hybrid and electric vehicles.
Researchers at the National Institute of Standards and Technology (NIST) and their colleagues have demonstrated a room-temperature method that could significantly reduce carbon dioxide levels in fossil-fuel power plant exhaust, one of the main sources of carbon emissions in the atmosphere.
Volvo Trucks and mining company Boliden are joining forces to implement electric truck transport in underground environments. In mining environments, the electric trucks can deliver several big advantages—including no exhaust emissions, a safer workplace, and quieter working conditions.
A paper on the study is published in the journal Atmospheric Environment. However, both measurements also act as proxies for the complex mixture of gases in diesel exhaust, which is an established carcinogen and associated with respiratory, cardiovascular and reproductive health effects. Cheol-Heon Jeong, Alison Traub, Greg J.
The study is published in the journal Environment International. We found that primary pollutants—those that are emitted directly from a source, such as car exhaust—were associated with ED visits for cardiovascular and respiratory diseases. nitrogen oxides) and secondary (e.g. —Krall et al. 2018.07.033.
The basis for the delivery of the in-line six-cylinder engine was the further development and adaptation of the MAN D3876 to the extreme working environment of the new high-performance snow groomer from Laupheim. Equipped with the latest exhaust technologies, the MAN D3876 complies with the current and strict EU Stage V emission regulations.
Researchers from MIT’s Laboratory for Aviation and the Environment have concluded that ground-level PM 2.5 Steven Barrett, an assistant professor of aeronautics and astronautics at MIT, and colleagues have published their results in the journal Atmospheric Environment. Source: MIT. Click to enlarge. Waitz, Steve H.L. Yim, Steven R.H.
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