This site uses cookies to improve your experience. To help us insure we adhere to various privacy regulations, please select your country/region of residence. If you do not select a country, we will assume you are from the United States. Select your Cookie Settings or view our Privacy Policy and Terms of Use.
Cookie Settings
Cookies and similar technologies are used on this website for proper function of the website, for tracking performance analytics and for marketing purposes. We and some of our third-party providers may use cookie data for various purposes. Please review the cookie settings below and choose your preference.
Used for the proper function of the website
Used for monitoring website traffic and interactions
Cookie Settings
Cookies and similar technologies are used on this website for proper function of the website, for tracking performance analytics and for marketing purposes. We and some of our third-party providers may use cookie data for various purposes. Please review the cookie settings below and choose your preference.
Strictly Necessary: Used for the proper function of the website
Performance/Analytics: Used for monitoring website traffic and interactions
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.
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. Then, an ultra-fine spray of urea solution is dispersed into the exhaust stream for catalytic NO x reduction.
The UK public-private partnership Energy Technologies Institute (ETI), Loughborough University, Johnson Matthey and Caterpillar have launched a new £4.5-million The project aims to help HDV fuel efficiency by developing a more efficient exhaust aftertreatment system. —Loughborough University Professor Graham Hargrave.
The University of Bath and SAIC Motor UK Technical Centre are collaborating on a project to identify the most efficient conditions for the optimum performance of gasoline particulate filters (GPFs), to help minimize vehicle impact on the environment.
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 The team used a MY 2007 Volvo MD11 engine compliant with USEPA 2007 emissions standards. Click to enlarge.
A current research project is working to establish the technical basis for standardization of methanol fuels in Europe. The project involves a consortium of universities, research institutes, industrial companies and small and medium-sized enterprises as partners.
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.
The project is also supported by Network Rail, Tarmac, Rail Safety Standards Board (RSSB), Flogas, Carrickarory and the University of Birmingham. Exhaust emissions will be assessed in line with the latest RSSB guidance to understand both the baseline conditions and the impact of dual-fuelling for both hydrogen and biogas.
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. Click to enlarge. The conference.
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%.
ClearFlame’s solution, grounded in technology developed during doctoral studies at Stanford University and validated using more than $3 million in grant funding, addresses this problem by elevating combustion temperatures in order to enable use of non-traditional fuels without sacrificing performance.
Southwest Research Institute (SwRI) and The University of Texas at San Antonio (UTSA) announced funding for a new joint research projects to advance clean emission technologies. Future fuel economy standards will result in lower exhaust gas temperatures and limit the use of high-temperature SCR.
The Paul Scherrer Institute (PSI), Bern University of Applied Sciences, the University of Applied Sciences and Arts Northwestern Switzerland, several industrial partners and Empa were all involved. Levels in exhaust emissions were found to be as much as 1,700 times above this limit. —Norbert Heeb.
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.
It does not generate any exhaust and sets the standards for smart mobility with peak values of 90 percent in the areas of efficiency and recyclability. The new battery-operated train is the first of its kind to enter passenger operation in Europe in more than 60 years. It is also around 50% quieter than modern diesel trains.
Now, in a new study published in the ACS journal Environmental Science & Technology , researchers at Carnegie Mellon University have found that secondary organic aerosol (SOA) production from both port fuel injection (PFI) and gasoline direct injection (GDI) vehicles has been substantially reduced through the tightening of NMOG emissions.
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.
New research by George Mason University found that exposure to certain air pollutants is linked to increased emergency department (ED) visits for respiratory and cardiovascular diseases. We fitted single pollutant models as well as models with multipollutant components using a two-stage chemical mixtures approach. —Krall et al.
Exposure to ozone at levels currently deemed safe by the NAAQS clean air standards can have a significant and negative effect on lung function, according to researchers at the University of California, Davis. The previous primary and secondary standards were identical 8-hour standards, set at 0.08 Earlier post.).
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.
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. The project is funded by AllerGen Inc.,
Researchers have used a novel near-infrared light imaging technique to capture the first cross-sectional images of carbon dioxide in the exhaust plume of a commercial jet engine. Image Credit: Gordon Humphries, University of Strathclyde. Image Credit: Abhishek Upadhyay, University of Strathclyde. —Michael Lengden.
Featuring a twin-scroll turbocharger and a three-port integrated exhaust manifold (IEM), the 2.3-liter liter EcoBoost, the standard unit on MKC, generates 240 hp (179 kW) at 5,500 rpm and 270 lb-ft (366 N·m) of torque at 3,000 rpm, according to preliminary test data. Ford specifically engineered the 2.3-liter
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. The aim is to detect the exhaust class of each individual vehicle using these measurements.
Southwest Research Institute has launched a new automotive emissions aftertreatment catalyst testing facility, expanding the capacity and capabilities of its Universal Synthetic Gas Reactor (USGR) technology. These systems simulate real-world exhaust gas conditions to characterize catalyst performance quickly and accurately.
Using an alternative approach to determine the amount of black carbon (BC) emissions from civil aviation, researchers from the University of Cambridge, MIT, and Forschungszentrum Jülich have estimated that in 2005, total BC emissions from this sector were 16.9 higher than estimates obtained using standard methods (6.3
Amminex is introducing BlueFit: a hardware retrofit solution aimed at lowering NO x emissions on older diesel cars to meet and surpass the latest Euro 6 standard. The ASDS is installed in the spare wheel well and the SCR catalyst is fitted to the exhaust pipe under the car. liter engine (Euro 5) was retrofitted with BlueFit.
Researchers at the University of Wisconsin, led by Dr. Rolf Reitz, are investigating a blended dual-fuel (gasoline and diesel) concept to extend the operating range of partially premixed charge compression ignition combustion by using the varying fuel reactivity of the charge blend, which is determined in real time. Source: Rolf Reitz.
Accompanying the lower noise levels from bus traffic was a reduction of fatigue, day time sleepiness and low mood, a study at the University of Gothenburg shows. In parallel, noise measurements were performed in several homes—including indoors, which is not otherwise standard procedure.
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.
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. Earlier post.)
The K6 engine uses six strokes instead of four to reduce the pressure of exhaust gases, which allows it to harvest more energy rather than expelling it with the gas. Shedd said the engine could be up to about 30% more efficient than a standard diesel engine, depending on the engine load and speed. —Timothy Shedd.
New research from North Carolina State University found that federal requirements governing diesel engines of MY 2010 tractor trailer trucks have resulted in major cuts in real world emissions of particulate matter (PM) and nitrogen oxides (NO x ). grams of PM per gallon of fuel used. The PM emissions were 95% lower.
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. Image: University of Bern /SR Technics Switzerland AG. Turbine engine in the testing facility (not running).
Researchers from Tampere University and the University of Eastern Finland have found that the particulate emissions of auxiliary heaters can be up to a thousand times higher than the particulate emissions of idling gasoline vehicles. Their open-access study is published in the journal Atmosphere.
liter YC6L platform—compliant with Euro VI emission standards. The engine further uses selective catalytic reduction (SCR) technology and particulate filters (DPF), to further reduce NO x and particulate emissions to meet the Euro VI standards. The report shows NO x emissions of 307.3 mg/kWh and particulate emissions of 6.5
In 2010, The US Department of Energy (DOE) selected Delphi, along with partners Hyundai America Technical Center, Inc (HATCI); Wisconsin Engine Research Consultants (WERC); and the University of Wisconsin-Madison (UW) for a $7.48-million Earlier post , earlier post.). Earlier post.) DOE UFEV program targets. Vehicle fuel efficiency on FTP.
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.
The findings of a study by researchers at Carnegie Mellon University, with colleagues at UC Berkeley, suggest that changing atmospheric NO x levels over the next two decades will likely significantly reduce the effectiveness of stricter new gasoline vehicle emissions standards in reducing concentrations of secondary organic aerosol (SOA).
VR6-gaseous fuel engine and new diesel engines with modular peripherals which will be rated at 55 kW (74 hp) and meet EU 97/68 IIIB and US EPA Tier 4 standards from 2013 onwards. The company is highlighting a 3.6L-VR6-gaseous These units are based on automotive engines.
A team led by researchers at Oregon State University has discovered novel nitrated polycyclic aromatic hydrocarbon (NPAH) compounds produced by combustion sources or formed in the atmosphere that are hundreds of times more mutagenic than their parent PAHs, which are known carcinogens.
Velocys is leading the development of the project and has assembled all the technology components into a standardized integrated design. University College of London students were crowned as the winners of its BA 2119: Future of Fuels challenge. million gallons US) of cleaner-burning sustainable jet and road fuel each year.
outboards—release one-fifth of the carbon monoxide emissions of a four-stroke engine at idle and are compliant with stringent US Environmental Protection Agency (EPA), European Union (EU), and California Air Resources Board (CARB) 3-Star ultra-low emissions standards.
If a ban were introduced on the sale of new gasoline and diesel cars, and they were replaced by electric cars, the result would be a significant reduction in lifecycle carbon dioxide emissions primarily due to reduced tailpipe CO 2 emissions, according to a new lifecycle study by researchers at Chalmers University of Technology, Sweden.
We organize all of the trending information in your field so you don't have to. Join 5,000+ users and stay up to date on the latest articles your peers are reading.
You know about us, now we want to get to know you!
Let's personalize your content
Let's get even more personalized
We recognize your account from another site in our network, please click 'Send Email' below to continue with verifying your account and setting a password.
Let's personalize your content