Eaton and Tenneco partner to produce new, integrated exhaust thermal management system to meet coming lower NOx standards

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Power management company Eaton and Tenneco announced a joint development agreement between Eaton’s Vehicle Group and Tenneco’s Clean Air business group to produce an integrated exhaust thermal management system that will enable commercial truck and light vehicle manufacturers to meet upcoming emissions regulations. Across the globe, emission standards are tightening for vehicle manufacturers.

Eaton 170

Emissions Analytics finds pollution from tire wear can be 1,000x worse than exhaust emissions

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Pollution from tire wear can be 1,000 times worse than a car’s exhaust emissions, Emissions Analytics has found. New cars now emit very little in the way of particulate matter but there is growing concern around non-exhaust emissions (NEEs).

2020 400
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Exhaust and aftertreatment on the Achates ULNOx heavy-duty opposed-piston diesel

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However, during development, the project team was able to exceed the program expectation for engine-out NO x and exhaust temperature control in the catalyst warm-up mode and concluded that the tailpipe NO x targets can be met without the close coupled light-off SCR.

2020 292

MAN Engines showcasing D3876 diesel engine for EU Stage V locomotives without exhaust after-treatment systems

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One of its outstanding features is the in-line six, which meets the EU Stage V emission standard for locomotives without the need for an exhaust after-treatment system (EATS). The MAN D3876 LE63x meets EU Stage V for locomotives without the need for exhaust after-treatment systems. 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.

2018 245

Continental shows off-road exhaust gas aftertreatment solutions

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At Agritechnica in Hanover, the world’s leading trade fair for agricultural machinery and equipment, Continental is presenting exhaust aftertreatment solutions for agricultural and construction machinery. Continental’s solutions are designed to conform to the upcoming EU Stage V emissions standards, which from 2019 will set stricter emissions limits for non-road mobile machinery. As a result, exhaust aftertreatment systems for this sector are becoming ever more extensive in scope.

2017 150

Study finds total PM10 emissions from EVs equal to those of modern ICEVs; role of weight and non-exhaust PM

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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). Non-exhaust PM factors include tire wear, brake wear, road surface wear and resuspension of road dust. Non-exhaust sources account for more than 90% of PM 10 and 85% of PM 2.5

2016 326

Study suggests some filtering of particulates from diesel exhaust may worsen allergy-induced lung impairment due to increase in NO2

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Air pollution from diesel engines may worsen allergy-induced lung impairment more when tiny particles are filtered from the exhaust than when they are not, according to new research published online in the American Thoracic Society’s American Journal of Respiratory and Critical Care Medicine. NO 2 , which is subject to national air quality standards, has been shown to reduce lung function and may be a cause of asthma in children.

2019 175

Study finds long-term exposure to black carbon from traffic exhaust at residential address increases the risk of stroke

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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. The open-access study, published in the journal Environmental Health Perspectives , suggests that it is mainly black carbon from traffic exhaust that increases the risk for stroke, and not particulate matter from other sources.

2019 163

Environment Canada study finds vehicle exhaust a significant source of isocyanic acid; suggests consideration of new emission standard

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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. measured several organic and inorganic acids from light duty diesel exhaust using acetate ion chemical ionization mass spectrometry (Acid-CIMS).

2013 186

IAV develops new close-coupled diesel exhaust gas aftertreatment system for improved emissions reduction

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IAV has developed a particularly closed-coupled diesel exhaust gas aftertreatment (EAT) system. Under the EU6 standard, diesel engines are still allowed to emit up to 80 mg NO x /km milligrams of nitrogen oxides per kilometer—not only under the legal framework in the cycle but also in respect of increasingly tighter RDE requirements. A key contribution to this performance must come from the exhaust gas aftertreatment system—across the entire speed and load range.

2017 190

Toyota unveils 2021 Venza crossover, hybrid powertrain standard

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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. Toyota unveiled the 2021 Venza midsize two-row crossover utility vehicle (CUV).

2020 222

Corning expands light-duty vehicle exhaust filter capacity in Germany

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Diesel vehicle manufacturers are striving for greater engine performance and fuel economy while meeting Euro 6 emissions standards under a myriad of driving conditions. European regulators intend to address this issue in upcoming regulations that will include “real-world-driving” standards, which establish more stringent emissions limits and address particulates generated by GDI engines.

Study estimates 6% of lung cancer deaths in US and UK attributable to diesel exhaust

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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). Our estimates suggest that stringent occupational and environmental standards for DEE should be set.

2013 284

Study finds engines emit exhaust nanoparticles even when not fueled during engine braking

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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. A new study finds that as much as 20–30% of the number of vehicle engine exhaust particles larger than 3 nm may be formed during engine braking conditions—i.e.,

2014 258

UBC study associates exposure to diesel exhaust with changes in DNA methylation

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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. As an organism lives and grows, chemical reactions activate and deactivate parts of its genome at strategic times and in specific location. Epigenetics is the study of these reactions.)

2015 240

Study shows biodiesel blends in buses reduce PM, other harmful exhaust elements, EC and CO

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Before they can be used, however, it is essential to understand their physical properties, combustion chemistry, and characterization of the exhaust due to a number of issues associated with fuel properties—for example, a lower heating value and higher cloud point than regular diesel. In addition, physical properties (flash point, cloud point, and kinematic viscosity) of all biodiesel blends were measured following the American Society for Testing and Materials (ASTM) standard methods.

2014 255

European project working to establish basis for standardization of methanol fuels in Europe

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A current research project is working to establish the technical basis for standardization of methanol fuels in Europe. The partners in the “Methanol Standard” project aim to pave way for the certification and market launch of methanol fuels.

2020 232

WHO IARC classifies diesel exhaust as carcinogenic to humans (Group 1)

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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. In 1988, IARC classified diesel exhaust as probably carcinogenic to humans (Group 2A). new technology enables more stringent standards.

2012 265

Study links ambient PM2.5 and ozone specifically caused by vehicle exhaust emissions to ~361,000 premature deaths worldwide in 2010 and ~385,000 in 2015

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Exhaust from on-road diesel vehicles was responsible for nearly half of the impacts (~181,000 premature deaths) worldwide, and fully two-thirds in India, France, Germany, and Italy. Transportation-attributable health impacts declined in the United States, European Union, and Japan as vehicle emission standards have been implemented, but these reductions have been offset by growing impacts in China, India, and other parts of the world.

2019 201

UC Riverside team wins EPA design contest with lawnmower exhaust aftertreatment device

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A team of University of California, Riverside Bourns College of Engineering students have won an EPA student design contest for developing an exhaust aftertreatment device that cuts CO, NO x and PM emissions from lawnmowers. EPA estimates that a standard gasoline-powered lawn mower emits 11 times the air pollution of a new car for each hour of operation. Then, an ultra-fine spray of urea solution is dispersed into the exhaust stream for catalytic NO x reduction.

2014 221

US study of miners links heavy exposure to diesel exhaust to increased risk of lung cancer death; researchers suggest implications for urban areas with high exhaust concentrations

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In a study of non-metal miners in the US, federal government scientists report that heavy exposure to diesel exhaust increased risk of death from lung cancer. According to the investigators, this is the first study based on estimates of quantitative historical exposure to diesel exhaust to yield a statistically significant, positive increase in lung cancer risk with increasing diesel exposure with adjustment for potential confounding from cigarette smoking.

Study finds “markedly” high levels of diesel exhaust present in commuter trains powered by locomotives in pull-mode

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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. The organization is also moving to locomotives with improved emissions standards and to electrified service on key routes, which will eliminate the diesel emissions altogether.

2017 207

HEI ACES study of lifetime animal exposure to New Technology Diesel Engine exhaust finds no lung cancer

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The first study to conduct a comprehensive evaluation of lifetime exposure to new technology diesel exhaust (NTDE)—i.e., exhaust from heavy-duty diesel engines meeting EPA 2007 and later emissions requirements—has found no evidence of carcinogenic lung tumors. The study exposed laboratory rats 80 hours a week, for up to 30 months, to emissions from a heavy-duty diesel engine meeting 2007 US EPA standards using new filters and other control technology.

2015 245

New ORNL non-precious metal catalyst shows promise as low-cost component for low-temperature exhaust aftertreatment

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Researchers at Oak Ridge National Laboratory (ORNL) have developed a ternary mixed oxide catalyst composed of copper oxide, cobalt oxide, and ceria (dubbed “CCC”) that outperforms synthesized and commercial platinum group metal (PGM) catalysts for CO oxidation in simulated exhaust streams while showing no signs of inhibition—i.e., PGM catalysts are the current standard for emissions aftertreatment in automotive exhaust streams.

2015 184

Fraunhofer developing process to ferment steel exhaust gases to fuels and chemicals

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Fraunhofer researchers in Germany have developed a process for the conversion of CO-rich exhaust gases from steel plants into fuels and specialty chemicals. In addition to the exhaust gases, syngas—similar gas mixtures from home and industrial waste incineration—can also be used for the engineered process.

2015 179

SAE Publishes Revised J1711 Standard to Measure Exhaust Emissions and Fuel Economy of Hybrids and Plug-in Hybrids

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A revised J1711 standard from SAE International— J1711 - Recommended Practice for Measuring the Exhaust Emissions and Fuel Economy of Hybrid Electric Vehicles, including Plug-in Hybrid Vehicles (J1711 JUN2010)— provides the procedures to accurately measure exhaust emissions and fuel economy of hybrid (HEV) and plug-in hybrid electric vehicles (PHEV). The new version supersedes the J1711 standard originally published in March 1999.

2010 170

DOE awards $17M to FY 2014 SBIR Phase II projects; includes Si/graphene anodes, motor windings, exhaust treatments

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Hybrid Electric Turbocharger for Exhaust Energy Recovery and Transient Lag Reduction. NexTech Materials of Lewis Center, Ohio, has developed a new diesel engine exhaust NO x sensing technology that is able to rapidly and selectively measure nitrogen oxides in diesel engine exhaust streams. A Novel Exhaust after Treatment Catalyst. of Wheat Ridge, Colorado, will develop a new exhaust after-treatment system using new low temperature catalysts.

2014 221

Calls for an international 48V electrical standard for vehicles; looming WLTP implementation

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At the 2 nd International Conference Automotive 48 V Power Supply Systems , held last week in Düsseldorf, Germany, Controlled Power Technologies (CPT), a major sponsor of the event, together with leading car makers and Tier 1 suppliers, argued the need for an internationally agreed 48V electrical standard. Such a standard will be necessary for the global automotive industry to achieve the economies of scale demanded by original equipment manufacturers. 48V Hybrids Standards

2014 218

Continental introducing new solutions for economic and efficient exhaust gas aftertreatment in commercial vehicles

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At the IAA in Hanover (Germany), Continental is presenting new solutions for exhaust gas aftertreatment in commercial vehicles. The technologies being shown are designed to help system suppliers and OEMs meet new exhaust emissions standards such as Euro VI (2013) and US10 /Tier4f. In a SCR system an aqueous urea solution (AdBlue) is injected into the exhaust flow to facilitate the conversion of nitrogen oxides in a catalytic converter.

2012 196

Study finds diesel oxidation catalyst eliminates mutagenicity of diesel exhaust in gas phase

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A team of researchers in Germany has found that the mutagenicity of diesel engine exhaust (DEE) is eliminated in the gas phase by a Diesel Oxidation Catalyst (DOC), but only slightly reduced in the particle phase. This can be achieved by direct measurement of the exhaust components. turbocharged Mercedes-Benz OM 906 LA engine which was equipped with an intercooler, and fulfilling the EURO III emissions standard.

2012 200

Environment Canada/MECA team assesses black carbon emissions in GDI engine exhaust; evaluation of prototype gasoline particulate filter

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Solid bars represent low ambient temperature measurements whereas open, dashed bars represent standard temperature measurements. This may result in the need for new emissions control strategies—such as a gasoline particulate filter (GPF)—to enable compliance with California LEV III and US EPA Tier 3 particulate emissions standards. mg/mi at standard temperature to 4.3?4.5 mg/mi at standard temperature to 0.01?0.5

2014 199

New Tester Measures Urea Concentration in Diesel Exhaust Fluids

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The MISCO Palm Abbe DEF-201 is a handheld digital refractometer designed specifically for testing the concentration of urea-based Diesel Exhaust Fluid (DEF). Diesel Exhaust Fluid for diesel-powered vehicles employing Selective Catalytic Reduction (SCR) technology must be maintained within a very narrow concentration range of less than 1.5% in order to receive API Certification and meet international standards.

Study finds high exhaust temperatures within NTE operation for heavy-duty diesels with aftertreatment systems contribute to high nanoparticle concentrations

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The transient results illustrate the gradual formation of the nucleation mode particles with continuous increase in exhaust temperatures. Current 2010 USEPA emissions standards for NO x and PM are set at 0.20 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. Transient particle size distribution variation over the PA3 in-use NTE cycle.

2012 191

California ARB petitions US EPA for “Tier 5” stricter locomotive emissions standards

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In an effort to accelerate the movement to zero- or near-zero emission locomotives, the California Air Resources Board (ARB) has petitioned the US EPA take action to adopt more stringent emission standards for locomotives. These new standards are to include standards for newly manufactured locomotives (which ARB refers to as “Tier 5”), and a new standard for Tier 4 locomotives upon remanufacture. Top: Existing federal standards.

2017 200

First results from HEI/ACES murine study find few biologic effects from exposure to exhaust from new technology diesel engines

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The study—a component of the Advanced Collaborative Engine Study (ACES)—is exposing rats and mice for 16 hours a day to emissions from a heavy duty diesel engine meeting 2007 US EPA standards that reduce emissions of fine particles and other pollutants by more than 90% from levels emitted by older engines.

2012 184

Second-generation Audi A7 Sportback features standard 48V MHEV system with gasoline or diesel engines

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The drive system features a new mild-hybrid system (MHEV) as standard. The new three-liter V6 exhaust end lies inside the 90° vee; the short gas paths and the twin scroll charger, which prevents unwanted interactions between the gas columns, guarantee spontaneous throttle response. This is due in part to the new tube guide in the dual-branch exhaust system that largely eliminates hum frequencies. The exhaust manifold is integrated in the cylinder head and bathed in coolant.

2018 190

Bosch, DEUTZ, and Eberspächer Set Up JV for Diesel Exhaust Aftertreatment

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KG have signed an agreement to set up a joint venture in the area of diesel exhaust aftertreatment. The objective is to use the core exhaust aftertreatment competencies of the three companies involved and, on the basis of a modular principle, to offer complete system solutions for construction and agricultural machinery, as well as for commercial vehicles. Thomas Wünsche, CEO of Eberspächer Exhaust Technology. Robert Bosch GmbH, DEUTZ AG, and Eberspächer GmbH & Co.

2009 161

Bosch, DEUTZ, and Eberspächer Explore Possibility of Joint Activities in Off-Road Exhaust-Gas Technology

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KG signed a memorandum of uncerstanding to pursue negotiations relating to joint activities in the development, manufacture, and sale of diesel exhaust-gas treatment systems for off-road vehicles. With stricter emissions regulations coming into force from 2011—stage III B and IV in Europe, Tier 4i and Tier 4 in North America, and comparable regulations in Japan—the demand for exhaust-gas treatment systems for this segment is growing significantly. Robert Bosch GmbH, DEUTZ AG, and J.

2009 150

MECA report assesses technology feasibility for heavy-duty diesel trucks to meet lower NOx standards by 2024

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The Manufacturers of Emission Controls Association (MECA) released a report assessing market-ready technologies being commercialized by suppliers of emission control and efficiency components for heavy-duty diesel vehicles to meet lower intermediate standards for oxides of nitrogen (NO x ) by 2024 as a transition to final standards in 2027. Both the US EPA and the California ARB have announced rulemakings focused on strengthening the current heavy-duty emission standards.

2019 175

London launches $111M program to upgrade around 5000 older buses to Euro VI emissions standard

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The Mayor of London, Sadiq Khan, launched a £86.1-million (US$111 million) program to retrofit around 5,000 older buses with a new exhaust system that will upgrade the vehicles to Euro VI emissions standards. By September 2020 the entire bus fleet will be at least Euro VI standard, with the emissions from the retrofitte buses cut by up to 95%. In addition all buses within the central London Ultra-Low Emission Zone will be Euro VI hybrid standard by 2019.

2017 163

CMU study finds secondary organic aerosol production from PFI and GDI vehicles has been “substantially” reduced by tightening NMOG standards

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Further, their data suggest that this trend will continue with the implementation of the new federal Tier 3 and California LEV III standards. Further, they found no difference in SOA production between PFI and GDI vehicles certified to the same standard. However, they also cautioned, SOA production also depends on atmospheric conditions, specifically the NO x regime; therefore only tightening NMOG emissions standards may not be enough to reduce urban SOA levels.

2018 163

ICCT: decline in diesel sales will have negligible impact on attainment of European CO2 emission standards

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The ICCT projects that a decline in diesel shares down to 15% in 2025 would not interfere with meeting EU CO 2 standards and would actually decrease costs of meeting CO 2 standards.17. The cost advantage of hybrid electric vehicles is expected to grow as battery prices decline and diesel engines require increasingly complex exhaust aftertreatment technology.

2018 174

SAE Hybrid Standards Committee: Works In Progress For 2009

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Active standards work. During the SAE 2009 World Congress in Detroit, Gary Kissel of General Motors presented an update of hybrid, plug-in hybrid, and electric vehicle standards being revised or developed by the Society of Automotive Engineers (SAE) Hybrid Standards Committee. SAE standards are generally followed by manufacturers of vehicles destined for North America and other markets. The standard, which is based on a similar document developed by the US.

2009 163