Green Car Congress

AUGUST 13, 2021

“Blue” hydrogen—produced through steam methane reforming (SMR) of natural gas or coal gasification, but with CO 2 capture and storage—is being described as having low or zero carbon emissions. The open access paper by Cornell’s Robert Howarth and Stanford’s Mark Jacobson is published in the journal Energy Science and Engineering.

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Hydrogen Gas Coal Exhaust 414

Green Car Congress

MARCH 1, 2019

A new study provides the most detailed picture available to date of the global, regional, and local health impacts attributable to emissions from four transportation subsectors: on-road diesel vehicles; other on-road vehicles; shipping; and non-road mobile engines such as agricultural and construction equipment. Together, PM 2.5

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Ozone 2015 2010 Exhaust 230

Green Car Congress

FEBRUARY 22, 2018

Their study is publishedin the ACS journal Environmental Science & Technology. Top: Gravimetric PM mass, PM mass calculated based on the IPSD method, black carbon, and EC/OC emissions over the LA92 cycle. Bottom: Total particle-phase PAH emissions, expressed in ng/mile, for both test vehicles over the LA92 cycle. Yang et al.

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Gasoline Emissions Engine Fuel Economy 253

Green Car Congress

OCTOBER 29, 2021

ClearFlame Engine Technologies , a startup developing net-zero engine technology ( earlier post ), has secured $17 million in Series A financing, which will enable commercialization of the company’s innovative engine technology for the long-haul trucking, agriculture and power generation sectors.

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Financing Engine Iowa Diesel 318

Green Car Congress

MAY 21, 2020

On the opening day of the Frankfurt International Motor Show (IAA), the US Environmental Protection Agency (EPA) published a Notice of Violation: VW diesel engines with 1.6 liters displacement (type code EA 189) contained illegal software designed to manipulate emissions. For commercial vehicles with EA 189 engines—i.e.

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Diesel Engine Exhaust Emissions 207

Green Car Congress

MAY 8, 2017

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.

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Exhaust Diesel Gas Emissions 210

Green Car Congress

OCTOBER 1, 2019

Freight transportation is a pillar of the US national economy, but while long-haul trucks account for less than 6% of the vehicle miles traveled over US highways, they account for about 40% of the emissions of air polluting particulate matter and about 55% of nitrogen oxides, the precursor to ozone in the atmosphere, the study said.

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Emissions Diesel Ozone United States 286

Green Car Congress

MARCH 8, 2019

This research, published in the journal Separation and Purification Technology , shows that ozone can be used to remove not only SO x but also NO x from fossil fuel combustion exhaust streams. In our previous study, we found that MnO 2 can absorb not only SO 2 but also NO 2 simultaneously. Osaka et al. 2018.12.077. 2018.12.077.

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Exhaust Ozone Japan Diesel 320

Green Car Congress

MAY 17, 2019

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. For around 20 years, studies have shown that airborne particulate matter negatively affects human health.

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Engine Emissions Switzerland Gasoline 321

Green Car Congress

MAY 28, 2021

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.

Emissions 259

Emissions Carbon Manufacturer Sale 259

Green Car Congress

NOVEMBER 28, 2013

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). Earlier post.). China, India, Brazil) following with a delay of about 5 to 10 years. —Vermeulen et al. Roel Vermeulen, Debra T.

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Exhaust Diesel Brazil 2000 353

Green Car Congress

APRIL 12, 2019

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.

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Exhaust Diesel Pollution Canada 191

Green Car Congress

DECEMBER 26, 2019

Researchers at EPFL have patented a new concept that could cut trucks’ CO 2 emissions by almost 90%. The EPFL system captures CO 2 directly in the trucks’ exhaust system and liquefies it in a box on the vehicle’s roof. In their study, the scientists used the example of a delivery truck. 2019.00143.

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Emissions CO2 Exhaust Carbon 332

Green Car Congress

SEPTEMBER 3, 2017

A team at the University of Birmingham reports that a blend of 33% v/v of butanol in EN228 commercial gasoline containing 5% of ethanol (B33) reduces GDI (gasoline direct injection) engine-out carbonaceous emissions, while maintaining similar levels of NO x emissions when compared to standard gasoline combustion at low and medium engine loads.

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Gasoline Emissions Engine B0 170

Green Car Congress

MARCH 25, 2023

A study by MathPro Inc., Aircraft consume fuels and emit a range of emissions, including carbon dioxide and water vapor in the form of condensation trails (contrails). soot) present in the engine exhaust. The study considered two refining technologies: hydrotreating and extractive distillation. USD/gallon (~€0.03/L)

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Fuel Exhaust Conversion Water 170

Green Car Congress

APRIL 18, 2016

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).

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Exhaust Emissions Gasoline-Electric 2016 150

Green Car Congress

JUNE 2, 2014

BC mass emissions for all four GDI and PFI vehicles over the three different driving patterns. 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. Click to enlarge.

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Environment Exhaust Gasoline Canada 230

Green Car Congress

MAY 26, 2022

Several organizations, encompassing companies, research labs, and academia, have formed the Hydrogen Opposed Piston Engine Working Group. The Working Group consists of members undertaking research and development in the field of hydrogen combustion in an opposed-piston engine. The only criteria emission of concern is NO x.

Hydrogen 353

Hydrogen Engine Saudi Arabia Universal 353

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.,

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Renewable Diesel Emissions Engine 150

Green Car Congress

OCTOBER 29, 2014

A new study on the combustion properties of biodiesel for use in urban transit buses found that using biodiesel can effectively reduce the mass of particulate matter released in both hot and cold idle modes. Biodiesel may produce high NO x emissions. Kumar et al. Ultra-low-sulfur diesel (ULSD) was used as base fuel.

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Exhaust Oil Emissions Sodium 312

Green Car Congress

JUNE 12, 2017

A team from the California Air Resources Board (ARB), in partnership with the City of Sacramento, has characterized the in-use emissions from model year (MY) 2010 or newer diesel, liquefied natural gas (LNG) and hydraulic hybrid diesel engines during real-world refuse truck operation. The engines were certified to the MY 2010 (0.2

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Diesel Emissions Hybrid Exhaust 231

Green Car Congress

JANUARY 27, 2015

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.) Earlier post.)

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Exhaust Diesel Engine 2007 150

Cars That Think

FEBRUARY 27, 2024

After all, diesel cars cost less to maintain, burn less fuel, and have a longer engine life. Although the pollutant emissions of a diesel engine are less than those of a gasoline one, it still emits carcinogens, nitrous oxides, and soot. Older models don’t even have the emission-control features that newer ones do.

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Carbon Diesel Emissions Bangladesh 105

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

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Porsche Hydrogen Gasoline-Electric Exhaust 284

Green Car Congress

MAY 2, 2016

Regulatory regimes seeking to reduce emissions from transport have largely focused on tailpipe emissions—i.e., the criteria pollutants and CO 2 that emerge with the exhaust from the tailpipe. Non-exhaust PM factors include tire wear, brake wear, road surface wear and resuspension of road dust. earlier post ). Background.

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Exhaust Emissions Belgium Gasoline-Electric 150

Green Car Congress

SEPTEMBER 21, 2022

ClearFlame Engine Technologies, a company developing net-zero engine technology ( earlier post ), has hit a number of key milestones through multiple partnerships with customers, manufacturers, and fuel providers. Reviva has been providing quality remanufactured engines and engine components for more than 70 years.

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Engine Manufacturer Fuel Indiana 273

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. The narrower ends of the clouds are youngest, while the broader, wavier ends are older.

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Emissions Pollution 2003 Climate 223

Green Car Congress

JULY 18, 2022

The California Air Resources Board (CARB) has released the results of a multiyear study evaluating exhaust emissions from the use of California Reformulated Gasoline (CaRFG) that contains 15 volume percent ethanol (E15). The study used two fuels—an E10 and E15. SULEV30, ULEV50, ULEV70, and ULEV125).

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Fuel Economy Economy Fuel Ozone 186

Green Car Congress

NOVEMBER 27, 2013

Based on on-road measurements in their study, a team from the University of California Berkeley has estimated that, as of 2010, light-duty (LD) gasoline vehicles were responsible for 85% of CO; 18% of NO x ; 18% of organic aerosol (OA); and 6% of black carbon (BC) emissions from on-road motor vehicles in the United States.

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Gasoline Emissions Diesel San Francisco 239

Green Car Congress

JULY 12, 2013

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. mg kg fuel –1 and were significantly higher than previous biomass burning emission estimates.

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Exhaust Canada Environment Emissions 207

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

MAY 27, 2012

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. Diesel engine emissions (DEE) are classified as probably carcinogenic to humans.

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Exhaust Diesel Gas Emissions 231

Green Car Congress

MARCH 1, 2013

NASA researchers have begun a series of flights using the agency’s DC-8 flying laboratory to study the effects of alternate biofuel on engine performance, emissions and aircraft-generated contrails at altitude. —Ruben Del Rosario, manager of NASA’s Fixed Wing Project.

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Emissions Fuel Engine Alternative Fuels 225

Green Car Congress

MAY 6, 2019

applied partially premixed combustion mode to a direct-injection natural gas engine based on a 3D model coupled with a dual-fuel chemical kinetic mechanism (n-heptane/natural gas). It is widely accepted that internal combustion engines are one of the most predominant contributors to atmospheric pollution. —Li et al.

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Gas Emissions Engine China 207

Green Car Congress

AUGUST 23, 2012

Technology changes related to revised emissions standards for heavy-duty trucks are causing an increase in heavy-duty truck engine problems and a decrease in overall satisfaction with the powertrain, according to the JD Power and Associates 2012 US Heavy-Duty Truck Engine and Transmission Study. mpg in 2011.

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Engine EPA Emissions Power 268

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.

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Environment Emissions Exhaust 2014 150

Green Car Congress

AUGUST 22, 2017

According to a new study by Bosch, the use of e-fuels—synthetic fuels based on renewable energy—in Europe by 2050 as a scheduled supplement to electrification could save up to 2.8 gigatons of CO 2 : three times Germany’s carbon-dioxide emissions in 2016. The same applies to the existing combustion-engine expertise.

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Emissions Fuel CO2 Gasoline-Electric 210