Green Car Congress

JUNE 22, 2017

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).

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Cleaner Los Angeles Exhaust Gasoline 191

Green Car Congress

FEBRUARY 22, 2018

Their study is publishedin the ACS journal Environmental Science & Technology. The researchers assessed the gaseous, particulate, and genotoxic pollutants from two current technology gasoline direct injection vehicles when tested in their original configuration and with a catalyzed gasoline particulate filter (GPF). —Yang et al.

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Gasoline Emissions Engine Fuel Economy 253

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.

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Engine Exhaust Gasoline Diesel 271

Green Car Congress

JUNE 1, 2017

Traffic contributes more to NO x emissions in Europe than previously thought, according to a new study by a team at the University of Innsbruck. It has been a challenge to determine how much each polluter contributes to the emission output.

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Europe Diesel Emissions Pollution 150

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.

Fuel Economy 150

Fuel Economy Diesel Economy Engine 150

Green Car Congress

FEBRUARY 5, 2014

Broadly, the study by Stephanie Searle, Francisco Posada Sanchez, Chris Malins, and John German concludes that (a) technical barriers do not prevent the use of higher blends of ethanol, and (b) slow uptake of blends such as E15 and E85 is due to other factors, including high cost, legal and warranty issues, and consumer awareness and acceptance.

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Gasoline Exhaust Water Fuel 230

Green Car Congress

JULY 13, 2017

A paper on the Jülich study is published in the journal Fuel. The last blend—a suitable n-alkane cut mixed with OME 3-5 —has the greatest potential for increasing engine efficiency and reducing pollutant emissions. Exhaust gas values were also greatly improved by the use of electrofuels. Earlier post.) Schemme et al.

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Diesel Fuel Power Powered 150

Green Car Congress

MAY 26, 2022

A study of a 2017 Toyota Mirai fuel cell by Argonne National Laboratory found fuel cell stack efficiency below 50% and fuel cell system efficiency dropping below 40% at high loads. OP engines utilize direct injection after ports closure to avoid the risk of fuel short circuiting out the exhaust. Fuel Injection.

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Hydrogen Engine Saudi Arabia Universal 353

Green Car Congress

MARCH 22, 2017

Based on a detailed analysis of the efficiency technologies used to achieve these lower CO 2 emission levels, the ICCT study concludes that vehicle prices would increase by about 5% by 2030. EPA estimated the associated costs of cooled exhaust gas recirculation at approximately $216 per vehicle.

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Fuel Economy Economy Fuel Price 210

Green Car Congress

DECEMBER 15, 2017

To improve fuel efficiency, advanced combustion engines are being designed to minimize the amount of waste heat in the exhaust. As a result, future generations of exhaust after-treatment catalysts must perform at temperatures that are 100 °C lower than current catalysts. —Nie et al. Resources.

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Exhaust New Mexico Mexico Washington 150

Green Car Congress

JULY 14, 2017

A new study by an international team led by researchers from the Paul Scherrer Institute (PSI) in Switzerland has found that modern diesel passenger cars equipped with diesel particulate filters (DPFs) emit fewer carbonaceous particulates than gasoline-powered vehicles. The open-access study is published in the journal Scientific Reports.

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Gasoline Diesel Cars Emissions 218

Green Car Congress

MAY 12, 2017

A new study quantifying emissions from a fleet of gasoline direct injection (GDI) engines and port fuel injection (PFI) engines finds that the measured decrease in CO 2 emissions from GDIs is much greater than the potential climate forcing associated with higher black carbon emissions from GDI engines. —Saliba et al. of the data.

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Fleet Engine Global Fuel Economy 207

Green Car Congress

OCTOBER 11, 2014

The study follows another recent ICCT report showing that the gap between official and real-world fuel-economy figures in Europe has risen to about 38%. The study covered more than 140 hours and 6,400 kilometers (3,977 miles) of driving, and provides the largest collection of public data on Euro 6 equivalent diesel cars currently available.

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Diesel Emissions West Virginia 2014 344

Green Car Congress

MARCH 31, 2017

Vehicle tailpipes are a more important source of ammonia’s contribution to urban air pollution than is agriculture, according to a study by researchers from the US and China. The presence of NH 3 in vehicle exhaust greatly enhances the formation and growth of secondary inorganic aerosols. —Da Pan, co-author.

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Vehicles Emissions Houston Universal 150

Electric Vehicless

JUNE 29, 2021

In addition to that, they create lesser noise pollution which means additional health benefits for everyone including a decrease in road rage, anxiety, and tension and an increase in cognitive abilities. These cars are also well-known for their reduction in emissions and hence have become a favorite with many environmentally conscious users.

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Electric Vehicles Vehicles Electric Electrical 52

Green Car Congress

MAY 31, 2017

The team examined blends of 5% and 10% POMDME in diesel in a single-cylinder heavy-duty diesel engine to gain an overview of the blend’s impact on engine performance and exhaust emissions. In order to achieve a reduction in pollutants, several methodologies and measures have been adopted by legislators, academia and industry. . …

Diesel 186

Diesel Exhaust Emissions Fuel 186

Green Car Congress

NOVEMBER 22, 2016

A 2025 CO 2 target of an average 70 g/km for new cars in the EU could be met with very little electrification and with an average payback period of less than 4 years, according to a new study by the International Council on Clean Transportation (ICCT). Peter Mock, Managing Director of ICCT Europe.

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CO2 Cars 2014 Exhaust 150

Green Car Congress

AUGUST 18, 2017

Researchers at Purdue University, the University of Notre Dame and Cummins have discovered a new reaction mechanism that could be used to improve SCR catalyst designs for pollution-control systems to further reduce emissions of smog-causing nitrogen oxides in diesel exhaust. —William Schneider, the H. Clifford and Evelyn A.

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Li-ion Design Exhaust F-150 186