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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 dieselexhaust 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
The scientists showed that there are a number of organic molecules from diverse sources present in modern concrete structures and asphalt pavements: phthalates, dieselexhaust particulates, surfactants, and windshield washer fluids.
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?
Southwest Research Institute engineers have developed the next generation of clean diesel engine technology to reduce hazardous nitrogen oxides (NO x ) and carbon dioxide emissions while minimizing fuel consumption. According to the Environmental Protection Agency, nitrogen oxides are harmful to human health and the environment.
Startup ClearFlame Engine Technologies announced a partnership with Alto Ingredients, a leading producer of specialty alcohols and essential ingredients, to conduct pilot demonstrations of ClearFlame’s solution for diesel engines using low-cost ethanol in Class 8 trucks. In fact, it increases power by 25%.
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.
Contrary to expectations, exhaust from gasoline vehicles contributes more to the production of secondary organic aerosols (SOA) than exhaust from diesel vehicles, according to a new study by scientists from the Cooperative Institute for Research in Environmental Sciences (CIRES), NOAA’s Earth System Research Laboratory (ESRL) and other colleagues.
Under laboratory-simulated dieselexhaust conditions, this mixed-phase oxide material was superior to Pt in terms of cost, thermal durability, and catalytic activity for NO oxidation. Mullite is not only easier to produce than platinum, but also better at reducing pollution in diesel engines. Kyeongjae Cho. Wang et al.,
At the 17 th Supercharging conference this week in Dresden, Controlled Power Technologies (CPT) will launch what it says is the first water-cooled electric supercharger developed for “quasi-continuous” boosting of commercial diesel engines, including those developed for off highway applications. tonnes gross vehicle weight.
Audi of America introduced four new TDI clean diesel models for the US market this year—the Audi A8, A7, A6, Q5—along with an updated Q7 TDI, all equipped with a second-generation 3.0L V6 TDI diesel engine. ” One of our primary goals and objectives is to level the playing field for clean diesel vehicles.
Researchers at Environment Canada have found that vehicle exhaust is a significant source of isocyanic acid (HNCO), a toxic gaseous acid that is a product of various forms of combustion and a potential health concern. Automobile exhaust is also a known source of inorganic acids such as nitric (HNO 3 ) and nitrous (HONO) acids.
Although gasoline direct injection engines (GDI) are a favorable technology for reducing fuel consumption and greenhouse gas emissions, recent studies have shown that GDI vehicles could emit more PM than traditional PFI (gasoline port fuel injection) vehicles as well as heavy-duty diesel trucks equipped with diesel particulate filters.
The transient results illustrate the gradual formation of the nucleation mode particles with continuous increase in exhaust temperatures. Diesel particulate filters (DPF) and urea-based selective catalytic reduction (SCR) exhaust after-treatment systems thus have emerged as feasible strategies to meet the 2010 USEPA regulations.
Contribution of gasoline and dieselexhaust to SOA over 0% to 50% diesel fuel use. SOA contributions from the two sources are equivalent at 6% diesel fuel use. SOAs are tiny particles that are formed in air and make up typically 40% to 60% of the aerosol mass in urban environments. Gentner et al. Earlier post.).
Researchers from the General Motors Global Research and Development, Chemical Sciences and Materials Systems Lab have developed and demonstrated the use of strontium-doped perovskite oxides as efficient platinum substitutes in diesel oxidation (DOC) and lean NO x trap (LNT) catalysts. Tags: Catalysts Diesel Emissions. Science Vol.
Researchers at Imperial College London, working with colleagues from King’s College London and University of British Columbia, have demonstrated a mechanism by which dieselexhaust particles directly affect the lungs to initiate symptoms such as a tightening of the airways and cough. Robinson, Mark A. Birrell, John J. Wortley, Eric D.
To date, exhaust gas has generally only been used if it was hundreds of degrees Celsius hot. For example, the gas turbines in natural gas power plants produce exhaust gas that is used to generate steam for the operation of a steam turbine.
Researchers from the Center for Energy and Processes (CEP), MINES ParisTec, and Renault are exploring the non-catalytic reforming of diesel fuel with diesel engine exhaust gas (i.e. An alternative to the catalytic exhaust gas reforming of diesel fuel method is presented in this paper and consists of using an NTP torch.
SSSKK) plan to begin trials on 1 July of a diesel-electric hybrid transit bus fueled by a mixture of Fischer-Tropsch diesel (FTD)—specifically, Shell’s gas-to-liquids (GTL) fuel—and hydrogenated vegetable oil (HVO), a type of renewable diesel offering similar characteristics to FTD. (Hino) and Showa Shell Sekiyu K.
So far this year, the team has integrated the T2B2 aftertreatment in the dynamometer environment and is in the process of convert the demonstration vehicle to the T2B2 configuration. The approach that Cummins and partners have taken features: Replacing the aluminium V8 gasoline engine and emission control system with smaller diesel (2.8-liter)
Risø, the National Laboratory for Sustainable Energy at the Technical University of Denmark (DTU), is developing an electrochemical method for purifying exhaust, especially exhaust gases from diesel engines. million) from the Danish Council for Strategic Research (the Programme Commission on Sustainable Energy and Environment).
A discussion paper published by the United Nations Economic Commission for Europe (UNECE) asserts “ with a high degree of reliability that it is misleading to claim that people’s exposure to diesel engines of road motor vehicles is the cause of increased risk of lung cancer. ”. —“Diesel Engines Exhausts: Myths and Realities”.
Among the findings they reported in their paper in the journal Fuel was that under most of the engine operating conditions examined, RME emitted lower soot particle concentration than diesel under both nucleation and accumulation modes. Diesel engines are widely used owing to their high thermal efficiency and low fuel consumption.
Neste Oil, the Port of Rotterdam, and the Rotterdam Climate Initiative have launched a trial in which a Port Authority patrol boat will run for an extended period on Neste Oil’s NExBTL renewable diesel. This will be the first time that NExBTL renewable diesel has been used in a marine environment.
its 1999 study “Diesel Emissions and Lung Cancer: Epidemiology. be charged with the following: Review the findings of the 1999 HEI Special Report, Diesel Emissions and Lung. dieselexhaust, and analyze such data as needed. encountered in everyday, nonoccupational environments. The panel will. Risk Assessment.
At the IAA, MAN (part of the Volkswagen Group) presented a concept diesel-electric parallel hybrid version of its long-haul TGX truck. The MAN TGX concept hybrid will be driven by a parallel hybrid system, supplied by a 440 hp (328 kW) diesel engine and an electric motor with 130 kW drive power. MANs TGX hybrid concept at IAA.
Professor Stan Golunski, Deputy Director of the newly established Cardiff Catalysis Institute , in collaboration with engineers at Brunel and Birmingham Universities, is investigating the feasibility of an on-board exhaust gas reforming system to improve combustion and recover waste heat. Energy Environ. doi: 10.1039/b927199f.
PowerCell, a Swedish energy technology company with roots in the Volvo Group, unveiled a functioning full-scale prototype of its PowerPac fuel cell system, which combines an autothermal reformer and a PEM fuel cell stack to convert diesel fuel into electricity. Earlier post.) The unit produces about 3kW of electric energy.
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 dieselexhaust inhalation on DNA methylation levels at CpG sites across the genome in circulating blood in asthmatics. Diesel Emissions Health'
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.
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 diesel engine to operate on low-carbon and carbon-negative fuels, including 100% renewable plant-based fuels.
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 diesel engines with 1.6 liter diesel the emissions were even 53% worse. liter diesel the emissions were even 53% worse.
Field tests being conducted in Gothenburg show that Volvo Buses’ plug-in hybrid reduces fuel consumption by 81% and total energy consumption (diesel plus electricity) by 61% compared to a comparable Euro 5 diesel bus. The 4-cylinder, 5-liter Volvo D5F diesel engine produces 215 bhp and is installed vertically. Earlier post.).
Iveco, FPT Industrial and Bosch presented the Iveco Trakker Bi-Fuel Ethanol- Diesel vehicle at Agrishow, held last week in Ribeirão Preto, the largest agricultural fair in Brazil. So far, the 40-60% Ethanol-Diesel substitution rate is giving a 6% reduction in fuel costs in operation within the sugar-cane plantations.
The lowest fuel consumption and CO 2 levels comes in the MINI Cooper D with a 3-cylinder diesel: 3.5 – 3.6 liters)/100 kilometers, with CO 2 emissions of 133 – 136 g/km (122 – 125 g/km) and exhaust emission standard of EU6. MINI Cooper D with 3-cylinder diesel engine (85 kW/116 bhp). mpg US ) Exhaust emission standard is EU6.
Renault held a “2010 Environment Workshop” last week to showcase its progress across its range of vehicles’ full lifecycle through the Renault eco² program. dCi (type K9K) diesel is the brand’s best-selling engine with almost 900,000 units manufactured in 2009, in Valladolid (Spain) and Bursa (Turkey). New-generation 1.5 dCi engines.
Diesel-powered commuter trains may expose their passengers to elevated levels of certain black carbon and ultrafine particles, especially in the coach directly behind the locomotive, according to a new study from researchers at the University of Toronto. A paper on the study is published in the journal Atmospheric Environment.
Among the elements of the plan are a total ban on diesel in Paris in 2020; the Rue de Rivoli and the Champs-Élysées to be dedicated to ultra-low emission clean vehicles; and the four districts of the center to be transformed into vast semi-pedestrian areas.
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 can carry up to 150 passengers and are 80% more energy-efficient than corresponding diesel models.
The fourth stroke omits the conventional exhaust event in order to recompress the combustion gases. The researchers used a single-cylinder engine adapted from the Caterpillar C-15 (15-liter) diesel. Diesel Emissions Engines Fuel Efficiency Heavy-duty' This was not shown on the engine due to limitations of the combustion chamber.
thermal efficiency for application in hybrids; a high-performance clean diesel engine and a high efficiency transmission. Diesel engines. liter ND diesel engine for passenger cars to achieve both high fuel efficiency and high driving performance. The adoption of newly developed exhaust aftertreatment technology.
We have optimized the technology from our successful city sewer solution to meet the special requirements for working in urban zones, where regulations regarding CO 2 and diesel emissions have been tightened. —Per Lovring, CEO of Bucher Municipal Denmark.
SSSKK) plan to begin trials on 1 July of a diesel-electric hybrid transit bus fueled by a mixture of Fischer-Tropsch diesel (FTD)—specifically, Shell’s gas-to-liquids (GTL) fuel—and hydrogenated vegetable oil (HVO), a type of renewable diesel offering similar characteristics to FTD. (Hino) and Showa Shell Sekiyu K.
to supply more than 240,000 diesel engines. The agreement calls for delivery of inline six-cylinder diesel engines complete with cooling and exhaust gas system and automatic transmission. In 2009, the BMW Group sold around 498,000 diesel engines vehicles worldwide—almost 39% of its total sales of 1.286 million units.
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