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

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

AUGUST 19, 2022

In a recent simulation study reported in Porsche Engineering Magazine , Porsche Engineering examined the potential of hydrogen combustion engines. We have therefore developed a hydrogen combustion engine that aims to match the power and torque of current high-performance gasoline engines as a concept study. —Vincenzo Bevilacqua.

Porsche 284

Porsche Hydrogen Gasoline-Electric Exhaust 284

Green Car Congress

MAY 21, 2020

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. Together with his colleagues, he used a special instrument to examine the exhaust plumes of 23,000 passing cars and analyzed the levels of NO x and CO 2.

Diesel 207

Diesel Engine Exhaust Emissions 207

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

MARCH 25, 2020

This puffy line is not just exhaust from the engine, but a change in the clouds that’s caused by small airborne particles of pollution. The open-access study was published in AGU Advances, a journal of the American Geophysical Union. For comparison, today the Earth is estimated to have warmed by approximately 1 ?C, C, or 1.8 ?F,

Emissions 223

Emissions Pollution 2003 Climate 223

Green Car Congress

MAY 6, 2022

CAT-DEF—Catalyzed Diesel Exhaust Fluid—is an SwRI-developed catalyst- and surfactant-modified diesel exhaust fluid (DEF) solution. urea-water solution—is injected into the exhaust stream and ideally decomposes to form ammonia, which reacts with NO x on the SCR catalyst to form N 2 and H 2 O. DEF—a 32.5

Diesel 284

Diesel Emissions Exhaust Engine 284

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. Platt et al. Click to enlarge.

Pollution 362

Pollution Exhaust Emissions Light 362

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. — Yuan et al. Weichang Yuan, H.

Vehicles 284

Vehicles Emissions North Carolina Gasoline 284

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.

Environment 150

Environment Emissions Exhaust 2014 150

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

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. Plant-based oils, commonly used to produce biodiesel (e.g.,

Diesel 316

Diesel Oil Fuel Exhaust 316

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 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. —Paul Bloore. —Paul Bloore.

Fuel Economy 150

Fuel Economy Diesel Economy Engine 150

Green Car Congress

MAY 17, 2017

a straight drop-in of renewable diesel for conventional sulfur-free diesel), other studies and trials have shown that using renewable diesel results in: 33% lower levels of fine particulates (and a smaller number of particulates in general); 9% less NO x ; 30% less HC; 24% lower CO; and. On a non-optimized basis (i.e.,

Renewable 150

Renewable Diesel Emissions Engine 150

Green Car Congress

DECEMBER 23, 2013

A team at Ford Motor Company’s Research and Innovation Center in Dearborn conducted a detailed study of the effect of ethanol blend level in emissions, using a 2006 model Mercury Grand Marquis flexible fuel vehicle (FFV) operating on E0, E10, E20, E30, E40, E55, and E80 on a chassis dynamometer. Engine-out exhaust contains typically 1?3%

Emissions 294

Emissions Ford Exhaust Engine 294

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

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

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 2 emission in the new study was 2.5 g km -1 equates to 4.5

Diesel 150

Diesel Emissions Pollution London 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). Studies Confirm Negative Health Impacts As for the effects that NEEs have on the environment, the data is unsettling to say the least. Is it bad for the environment?

Exhaust 79

Exhaust Pollution Environment Emissions 79

Green Car Congress

FEBRUARY 5, 2016

The process involves introduction of a low reactivity fuel into the cylinder to create a well-mixed charge of low reactivity fuel, air and recirculated exhaust gases.

Engine 150

Engine Wisconsin Automobile Gasoline 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 29, 2015

Comparison between limit values for NO x , PM and CO 2 from EU type approval regulations (black clouds) to emissions in “real life” city traffic from the average Euro 6 diesel passenger car on the Helsinki city cycle. The study was funded by the Norwegian Public Roads Administration, as part of the “EMIROAD” program. Click to enlarge.

CO2 150

CO2 Diesel Exhaust Emissions 150

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

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

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. In their study, Bishop et al. —Bishop et al.

Emissions 150

Emissions Fleet Light Taxi 150

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

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.

Emissions 150

Emissions Vehicles Diesel Pollution 150

Green Car Congress

JUNE 29, 2013

A study by Sage Kokjohn, Senior Engineer in Combustion Research at Cummins Inc., improvement in total fluid consumption (diesel + diesel exhaust fluid for SCR) over conventional diesel combustion. improvement in total fluid consumption (diesel + diesel exhaust fluid for SCR) over conventional diesel combustion. Earlier post.).

Light 207

Light Engine Wisconsin Fuel Economy 207

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. In their study, Lilik and Boehman operated a light-duty 2.5L Credit: ACS, Lilik and Boehman. Click to enlarge. —Lilik and Boehman.

Diesel 236

Diesel Pollution Fuel Emissions 236

Green Car Congress

JUNE 23, 2011

The recuperated engine uses isothermal compression via cryogenic injection to enable significant exhaust to compressed gas heat transfer. The feasibility study is part-funded by the UK Technology Strategy Board as one of the winning submissions for the recent “Disruptive technologies in low carbon vehicles” competition.

Exhaust 285

Exhaust Concept Vehicles Engine 285

Green Car Congress

APRIL 4, 2011

Shindell and colleagues used a comprehensive computer model and climate simulator—one of the first capable of accounting for the role of aerosols—that shows vehicle exhaust exacts an enormous toll in all countries and especially in the developing world. In comparison, the Northern Hemisphere has warmed by about 0.3°C

Climate 231

Climate Standards Emissions Climate Change 231

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

Green Car Congress

MARCH 20, 2012

The study showed that smaller and more incremental changes applied to a large proportion of the fleet would deliver significantly greater fuel saving benefits than more radical innovations applied to a smaller number of vehicles. A gas exchange system upgrade for DMUs.

Diesel 218

Diesel Gas Fuel Fuel Economy 218

Green Car Congress

JUNE 11, 2016

Ricardo has previously reported on a simulation environment set up to enable the study of engine and after-treatment technology over RDE cycles, incorporating post-processing with the EMROAD and CLEAR tools. The cost comparison is with respect to a Euro 5 baseline. Attribute analysis presented in SIA paper. Click to enlarge.

Light 150

Light Diesel Price Exhaust 150