Green Car Congress

AUGUST 19, 2022

In a recent simulation study reported in Porsche Engineering Magazine , Porsche Engineering examined the potential of hydrogen combustion engines. The result is a high-performance powertrain with emissions at the same level as ambient air. The starting point for our study was an existing 4.4-liter —Vincenzo Bevilacqua.

Porsche 284

Porsche Hydrogen Gasoline-Electric Exhaust 284

Green Car Congress

MARCH 23, 2021

The University of Nebraska’s Department of Chemical and Biomolecular Engineering recently released results of a study of 50 non-flex fuel vehicles from the State of Nebraska to determine the adaptability, economic feasibility, and environmental impact of using E30 (30% ethanol blend). The study went on to project that if only 10% of the 1.7

Nebraska 225

Nebraska Fuel Vehicles Exhaust 225

Green Car Congress

FEBRUARY 11, 2021

This figure is comparable to sooty contamination from forest fires and building demolition, the study authors said. By comparison, aboveground air concentrations for all measured cities averaged just 16 ?g/m g/m 3 ), followed by the MTA New York at 251 ?g/m Washington had the next highest levels at 145 ?g/m

New York 418

New York Philadelphia New Jersey New York City 418

Green Car Congress

FEBRUARY 5, 2016

A study of emissions from gasoline direct injection (GDI) vehicles in an urban near-road environment in Toronto over a wide range of weather conditions (February 2014 to January 2015) found that—other than for NO x and CO—the GDI engines had elevated emissions compared to the Toronto fleet. m from the roadway.

Environment 150

Environment Emissions Exhaust 2014 150

Green Car Congress

JUNE 10, 2022

After systematically studying multiple catalyst compositions, researchers at KAUST and Umicore have clarified the role of cerium (Ce) in Mn-based oxide catalysts for the selective catalytic reduction (SCR) of NO x with NH 3 at temperatures below 200 °C. An open-access paper on the study appears in Nature Communications. Baiker et al.

Conversion 199

Conversion Engine Exhaust Diesel 199

Green Car Congress

MAY 21, 2020

liters displacement (type code EA 189) contained illegal software designed to manipulate emissions. Now—almost five years later—a study by the University of York and Empa shows that the retrofitting was successful from an environmental point of view. Here the measured NO x emissions fell by an average of almost 22%.

Diesel 207

Diesel Engine Exhaust Emissions 207

Green Car Congress

OCTOBER 24, 2016

A research team from Empa (Swiss Federal Laboratories for Materials Science and Technology) and the University of Applied Sciences Bern, Laboratory for Exhaust Emission Control, reports that ethanol blending appeared to reduce genotoxic emissions from a flex-fuel Euro-5 gasoline direct injection (GDI) vehicle (a Volvo V60 with a 1.6

Gasoline 150

Gasoline Emissions Exhaust Vehicles 150

Green Car Congress

MAY 17, 2017

Neste Renewable Diesel has already been shown to be able to reduce greenhouse gas emissions by up to 90% on a full lifecycle basis compared to conventional fossil diesel. The emission measurements were carried out before the catalytic converter and diesel particulate filter (DPF). On a non-optimized basis (i.e.,

Renewable 150

Renewable Diesel Emissions Engine 150

Green Car Congress

DECEMBER 23, 2013

FTP cycle-weighted tailpipe emissions of N 2 O, NO x , and the sum of NMOG and NO x. The minimum in NO x and NMOG emissions for midlevel ethanol blends points to future opportunities for emission reductions from FFVs. Credit: ACS, Hubbard et al. Click to enlarge. E40); and the new range for high-level ethanol blends (E55, E80).

Emissions 294

Emissions Ford Exhaust Engine 294

Green Car Congress

APRIL 9, 2019

A study by a team from North Carolina State University, with colleagues from the Urban Air Initiative and 3DATX Corporation, has shown that non-FFVs (flexible-fuel vehicles) can adapt to a mid-level ethanol blend—specifically E27. The study was commissioned by the Urban Air Initiative.

Vehicles 284

Vehicles Emissions North Carolina Gasoline 284

Green Car Congress

FEBRUARY 9, 2017

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.

Exhaust 150

Exhaust Diesel Power Powered 150

Green Car Congress

MAY 23, 2014

A study by European researchers has found that two-stroke (2S) scooters, although constituting a small fraction of the fleet, can dominate urban vehicular pollution through organic aerosol and aromatic emission factors up to thousands of times higher than from other vehicle classes. Platt et al. Click to enlarge.

Pollution 362

Pollution Exhaust Emissions Light 362

Green Car Congress

JANUARY 15, 2012

The transient results illustrate the gradual formation of the nucleation mode particles with continuous increase in exhaust temperatures. The particle number count under those conditions increased by more than an order of magnitude in comparison to DPF-out particle concentrations. The study by Thiruvengadam et al.

Exhaust 218

Exhaust Diesel West Virginia 2007 218

Green Car Congress

MAY 4, 2016

A study by researchers from the University of Denver and the University of Puget Sound indicates that high-mileage light-duty fleets contribute higher emissions and emissions share than expected based on their actual numbers in the fleet. In their study, Bishop et al. —Bishop et al.

Emissions 150

Emissions Fleet Light Taxi 150

Green Car Congress

OCTOBER 21, 2016

A new study by researchers from Imperial College London(ICL) of 39 new Euro 6 diesel passenger cars has found “ huge variability ” in the on-road NO x emissions of Euro 6 diesel passenger cars, with results ranging from 1 to 22 times the type approval limit. The average NO x emission from the test cars of 0.36 for urban driving.

Diesel 150

Diesel Emissions London Pollution 150

Green Car Congress

OCTOBER 10, 2013

Studies in cells alone do not necessarily reflect the integrated response of a whole animal, they noted.). About 46% of the B0 PM comprised polar compounds—chiefly esters, ketones and acids—also in agreement with earlier studies. We are unaware of previous studies reporting this type of comparison of the exhaust PM.

B0 210

B0 Diesel Emissions Exhaust 210

Green Car Congress

MAY 24, 2017

Based on a three-year study of toxic and environmentally relevant pollutants from gasoline direct injection (GDI) engines, Swiss researchers have concluded that some GDI engines emit just as many soot particles as unfiltered diesel cars did in the past. Further, the GDI particles carry numerous carcinogenic substances. Click to enlarge.

Engine 271

Engine Exhaust Gasoline Diesel 271

Green Car Congress

MAY 29, 2014

Other research has shown that carbonyls directly influence physiological response to diesel exhaust particles and can also contribute to secondary organic aerosol formation. In the Tianjin study, they team fueled a four-cylinder light-duty diesel engine fueled with CFT and DF, identifying 13 individual carbonyl compounds in the exhaust.

Coal 210

Coal Diesel Emissions Fuel 210

Green Car Congress

MAY 31, 2017

A joint study by Controlled Power Technologies (CPT) and Austria’s Technische Universität Wien (TU Wien) into 48V diesel mild hybrid technology verified a 9% reduction of NO x in raw engine-out emissions, while retaining the fuel economy and CO 2 benefits of diesel engine technology.

Fuel Economy 150

Fuel Economy Diesel Economy Engine 150

Green Car Congress

NOVEMBER 23, 2012

Biodiesel (fatty acid methyl ester) derived from oleaginous microbes—microalgae, yeast, and bacteria—can effectively displace both petroleum diesel and biodiesel produced from plant oils, according to the findings of a new study by a team from Utah State University. gracilis oil likely contribute to its low NO x emissions.

Diesel 316

Diesel Oil Fuel Exhaust 316

Green Car Congress

JULY 9, 2015

While cautioning that the results in no way constitute a complete and exhaustive comparison between NEDC and WLTP, the JRC team said, the data show some interesting trend—in line with other similar studies—in particular for CO 2 emission and fuel consumption. Key parameters. Duration (s). Distance (km).

Emissions 150

Emissions Vehicles Diesel Pollution 150

Green Car Congress

NOVEMBER 7, 2013

An open-access paper on the study has been accepted for publication in the ACS journal Environmental Science & Technology. However, the impact of these changes in HDDV exhaust emissions on ambient atmospheric pollutant concentrations and, more importantly, on human health outcomes across Canada have not been evaluated.

Canada 186

Canada 2006 Exhaust Pollution 186

Clean Fleet Report

MARCH 24, 2023

Marion, OH Most people have heard of exhaust emissions, but there is another form of emissions released by vehicles known as non-exhaust emissions (NEEs). According to independent testing and data firm Emissions Analytics , they can be as much as 1,000 times worse for the environment. — Jack C.,

Exhaust 79

Exhaust Pollution Environment Emissions 79

Green Car Congress

SEPTEMBER 29, 2015

Emission measurements conducted by Institute of Transport Economics in Norway, in collaboration with VTT in Finland, show that new Euro 6 cars with diesel engines are struggling with NO x emissions well in excess of regulatory type limits when in real traffic. Figure credit: Institute of Transport Economics. Click to enlarge.

CO2 150

CO2 Diesel Exhaust Emissions 150

Green Car Congress

FEBRUARY 5, 2016

RCCI, a variant of Homogeneous Charge Compression Ignition (HCCI), provides more control over the combustion process and has been shown to have the potential to lower fuel use and emissions significantly. bar and NO x emissions of 1.25 bar and NO x emissions of 1.25 bar and hydrocarbon + NO x emissions of about 16.5

Engine 150

Engine Wisconsin Automobile Gasoline 150

Green Car Congress

APRIL 4, 2011

Climate response to non-CO 2 vehicle emissions. vehicle emissions under the baseline scenario (a) and the difference between the tight-standard and baseline scenarios (b). However, these standards will not reduce CO 2 emissions, which is required to mitigate long-term climate change, the team notes. Shindell et al.

Climate 231

Climate Standards Emissions Climate Change 231

Green Car Congress

DECEMBER 6, 2017

Further, findings of a study led by Imperial College London researchers of more than half a million infants in the city suggests that pregnant mothers exposed to air pollution from London’s busy roads are more likely to give birth to babies that are underweight or smaller than they should be. This open-access paper is published in The BMJ.

London 150

London Pollution Environment Exhaust 150

Green Car Congress

AUGUST 26, 2013

Comparison between estimated EI BC and measured EI BC derived FOA3 (black open box), the FOA3 approach with the updated SN-CI correlation (blue triangle), and estimates obtained from the new FOX method (red circle) that are not dependent on SN. Credit: ACS, Stettler et al. Click to enlarge. These are a factor of ?2.7 near the ground).

Emissions 199

Emissions Standards Carbon Exhaust 199

Green Car Congress

FEBRUARY 5, 2015

Comparison of the potential reduction in emissions with the application of lower sulfur 0.5% The study found the potential for 1,500–2,000 Bering Strait transits in 2025, a three- to four-fold increase from 440 transits in 2013 (based on the medium-growth scenario). fuel for Arctic vessels assuming a low-growth scenario.

Pollution 150

Pollution Emissions Mariner Fuel 150

Green Car Congress

JUNE 14, 2016

Two separate tanks on R/V Robert Gordon Sproul held biofuel and diesel, and the researchers could run the ship’s engine from either source, switching back and forth as needed to collect different emission samples. Black carbon or soot counts were also slightly higher for biofuel.

Renewable 150

Renewable Diesel Emissions Fuel 150

Green Car Congress

APRIL 27, 2011

The London Congestion Charging Scheme (CCS)—which charged for travel into central London and reduced traffic volume ( earlier post )—has shown little evidence that it improved air quality as well, according to Part I of a new study published by the Health Effects Institute (HEI). NO 2 was projected to increase slightly, by 0.3

London 299

London Charging Pollution Diesel 299

Green Car Congress

SEPTEMBER 26, 2012

Comparison of brake thermal efficiency and specific fuel consumption at rated power (ICOMIA Mode 5), hydrogen vs. gasoline engines. This is due to raw, externally premixed fresh charge comprising air, fuel and lube oil being short-circuited into the exhaust during the scavenging process. Oh and Plante. Click to enlarge. Oh and Plante.

Engine 329

Engine Emissions Fleet Market 329

Green Car Congress

NOVEMBER 19, 2018

What initially motivated the Berlin Fire Department’s concluded tendering procedure were the growing demands with regard to environmental protection and the complex exhaust systems of conventional chassis, which are having an increasingly negative effect on the design and operation of firefighting vehicles.

Hybrid 259

Hybrid Climate Protection Concept Climate 259

Green Car Congress

JUNE 6, 2011

A study conducted by VTT Technical Research Center of Finland indicates that there is practically no difference between commercial gasoline grades 95E10 and 98E5 sold in Finland as regards fuel consumption in normal driving. The point of this study was to highlight how fuel consumption should actually be measured to give comparable results.

Fuel 199

Fuel Finland Cars Gasoline 199

Green Car Congress

APRIL 24, 2011

Comparison of optimized start of injection of advanced diesel combustion for brake thermal efficiency, NO x , PM, THC, and CO of diesel (open bar); HTFT (gray bar); and LTFT (black bar) fuels. HECC produces a decrease in both NO x and PM emissions while maintaining, or even increasing, fuel efficiency. Credit: ACS, Lilik and Boehman.

Diesel 236

Diesel Pollution Fuel Emissions 236

Green Car Congress

JANUARY 12, 2012

Use of new technologies to reduce friction losses should be able to lower automotive fuel consumption and emissions by 18% within the next 5 to 10 years and by up to 61% within 15 to 25 years, according to a joint study by VTT Technical Research Centre of Finland and Argonne National Laboratory (ANL) in the US. million TJ/a.

Fuel 186

Fuel Exhaust MPH Finland 186

Green Car Congress

JANUARY 19, 2010

Schematic of systems considered in the study. A paper on the study was published online 19 January in the ACS journal Environmental Science & Technology. For all crops, the entire plant was used to facilitate comparison on a total energy basis. Credit: ACS, Clarens et al. Click to enlarge. Clarens et al. Clarens, Eleazer P.

Water 218

Water Waste Energy Emissions 218