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

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

JANUARY 28, 2018

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.

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Standards Production Exhaust Gasoline 170

Green Car Congress

AUGUST 19, 2012

A study by a team led by Dr. Dennis Assanis at the University of Michigan suggests that accessing the “thermodynamic sweet spot” in high-efficiency, dilute, boosted gasoline engines has the potential for vehicle fuel economy gains between 23% and 58%. 1-RGF) where RGF is the total residual gas fraction. Martz and Dennis N.

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Fuel Economy Gasoline Economy Engine 236

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

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 In this way, the cost of exhaust-gas treatment can be reduced, Bosch adds. The same applies to the existing combustion-engine expertise.

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Emissions Fuel CO2 Gasoline-Electric 210

Green Car Congress

AUGUST 26, 2015

FEV is developing a water injection system for internal combustion engines using condensate from exhaust gases, the “Extended Direct Condensate Injection” system. in the region of the minimum specific fuel consumption on a stoichiometric combustion concept with Miller cycle and cooled external exhaust gas recirculation.

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Exhaust Water Fuel BMW 150

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. Automobile exhaust is also a known source of inorganic acids such as nitric (HNO 3 ) and nitrous (HONO) acids.

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Exhaust Canada Environment Emissions 207

Green Car Congress

FEBRUARY 20, 2011

Chassis dynamometer emission testing conducted on 30 in-use Indian auto-rickshaws—two-stroke and four-stroke CNG-fueled (CNG-2S and CNG-4S) and four-stroke gasoline-fueled (PET-4S)—found that global warming commitment (GWC) associated with emissions from CNG-2S was more than twice that from CNG-4S or PET-4S, due mostly to CH 4 emissions.

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Gasoline Emissions Fuel India 287

Green Car Congress

FEBRUARY 9, 2012

Their SOFC system can be operated without consuming the anode fuel (a reductant) at temperatures near that of the engine exhaust to eliminate the need for reductant refilling and extra heating. The NO x concentration in the exhaust of an automotive gasoline engine with spark ignition can be as high as 4000 ppm.

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Exhaust Engine Emissions Gas-Electric 225

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

NOVEMBER 11, 2013

A study by a team at the Propulsion Systems Research Labs, GM R&D has concluded that the combustion instability of homogeneous charge compression ignition (HCCI) at the low-load range is caused by lack of oxygen concentration rather than lower in-cylinder mixture temperature. Earlier post.). 5 512-524 doi: 10.1177/1468087412463304.

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GM Exhaust Gasoline Auto 231

Green Car Congress

APRIL 13, 2012

Global-mean temperature change caused by car exhaust emitted from gasoline and diesel engines specified in the previous and upcoming European vehicle emission standards (EURO 3, 4, 5, and 6). However, previous studies have shown more prolonged warming due to diesel cars under various conditions. Credit: ACS, Tanaka et al.

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Climate Gasoline Diesel Engine 223

Green Car Congress

FEBRUARY 4, 2013

During its recent Innovation Day presentations ( earlier post ), PSA Peugeot Citroën announced that it will commercialize high-efficiency gasoline engines featuring dedicated exhaust gas recirculation (D-EGR), derived from a collaborative program with SwRI in the US. Click to enlarge. PSA has filed for two patents on its work.

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Gasoline 2018 Engine Commercial 268

Green Car Congress

APRIL 17, 2015

A team from Honda R&D in Japan reports using a gasoline-diesel dual-fuel method to control ignition timing and combustion duration. At the same time, homogeneous charge compression ignition technology for gasoline engines also has been expected for high thermal efficiency and reduction in nitrogen oxide emissions. —Kuzuoka et al.

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Gasoline Honda Diesel Fuel 150

Green Car Congress

SEPTEMBER 11, 2015

Bosch is leading a consortium in a German government-funded project to develop a direct injection system for monovalent natural gas engines—i.e., Today’s CNG vehicles are generally bivalent, running on gasoline and CNG with engines designed for gasoline direct injection. engines that run exclusively on CNG.

Gas 150

Gas Engine Gasoline Downsizing 150

Green Car Congress

SEPTEMBER 17, 2015

A team led by researchers from the National Research Council Canada has investigated the effect of the use of a gasoline particulate filter on the size and morphology of PM emitted from a light-duty gasoline-direct-injection (GDI) vehicle over the FTP-75 and US06 transient drive cycles. Earlier post.) —Saffaripour et al.

Gasoline 150

Gasoline Canada Engine Light 150

Green Car Congress

FEBRUARY 14, 2018

The four-door coupé brings the show car design of the prologue studies ( earlier post ) to production. TFSI (gasoline) or a 3.0 The B-cycle combustion process (a modified Miller cycle, earlier post ), which is designed specifically for part load, makes the V6 gasoline engine particularly efficient. TDI (diesel) engine.

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Audi Gasoline Engine Standards 210

Green Car Congress

NOVEMBER 19, 2014

The X Mini 70cc rotary gasoline engine. As the engine does not have poppet valves and the gas is fully expanded before the exhaust stroke starts, the engine also has potential to be quiet. We’ve studied 60 rotary engine embodiments and patented dozens of rotary and pistons engines. Click to enlarge. Click to enlarge.

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Gasoline Engine Powered Power 379

Green Car Congress

NOVEMBER 24, 2015

Achates Power, the developer of a family of two-stroke compression-ignition opposed-piston engines ( earlier post ), has been selected by APRA-E under its OPEN 2015 solicitation ( earlier post ) for an award of more than $9 million to develop a multi-cylinder opposed piston engine operating with compression ignition that uses gasoline as the fuel.

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Gasoline Engine Powered Power 150

Green Car Congress

OCTOBER 10, 2012

Internal combustion engines have been significantly improving in the past decade, after the adoption of technologies such as Gasoline Direct Injection, mild electrification, downsizing and turbocharging. Exhaust gas exergy map of EcoCAR engine. —Skarke et al. Operating points correspond to typical driving conditions.

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Waste PHEV Fuel Exhaust 312

Green Car Congress

DECEMBER 5, 2009

At the tailpipe, the TWC ultimately reduced the regulated and unregulated emissions from the methanol-gasoline engine to the same levels as those generated by a conventional gasoline engine. A paper on their study was published online 3 December in the ACS journal Energy & Fuels. —Fan et al.

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Gasoline Emissions Alternative Fuels Engine 218

Green Car Congress

AUGUST 17, 2012

Under laboratory-simulated diesel exhaust conditions, this mixed-phase oxide material was superior to Pt in terms of cost, thermal durability, and catalytic activity for NO oxidation. Diesel engines are attractive because of their higher fuel efficiency than gasoline engines.

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Exhaust Diesel Dallas Conversion 240

Green Car Congress

JANUARY 2, 2019

The study found that higher ethanol blends—i.e., Overall, this study provides valuable insights on the impacts of ethanol content and gasoline composition on the exhaust emissions from a current technology GDI FFV. Their paper is published in the ACS journal Energy & Fuels. —Yang et al. Durbin, Kent C.

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Pollution Fuel Vehicles Emissions 255

Green Car Congress

FEBRUARY 15, 2016

BMEL’s central project-coordinating agency in the area of renewable resources, is funding a 3-year study of oxymethylene ethers (OME) as clean diesel fuels with €800,000 (US$894,000). These studies are to provide detailed insight into the relationships between the chemical OME structure and combustion properties.

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Diesel Cleaning Clean Germany 150

Green Car Congress

AUGUST 4, 2011

However, while Mazda plans to offer hybrid vehicles in the medium-term, its engineers are pushing hard to increase the efficiencies of both the gasoline and diesel platforms, moving toward what they call “the ideal Internal Combustion Engine.” Energy balance in an internal combustion engine. air-to-fuel ratio. combustion duration.

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Mazda Engine Gasoline Diesel 322

Green Car Congress

SEPTEMBER 26, 2010

A study by a team at the Pontifical Catholic University of Minas Gerais (Brazil) found that higher compression ratios in a spark-ignition engine improved performance of both an E22 blend (78% gasoline, 22% ethanol) as well as neat hydrous ethanol. Sodré (2010) Compression ratio effects on an ethanol/gasoline fuelled engine performance.

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Exhaust Gasoline Water 2009 199

Green Car Congress

SEPTEMBER 4, 2013

By focusing on the implementation of an extremely pragmatic and synergistic mix of powertrain electrification using available and near-market technologies, we have already shown in the HyBoost project the very significant and cost-effective benefits that can be achieved in a gasoline powertrain and 12+X volt electrification.

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Fuel Economy Diesel Economy Gasoline 239

Green Car Congress

DECEMBER 8, 2014

A paper on their study is published in the International Journal of Engine Research. Reactivity-controlled compression ignition combustion phasing (CA50—crank angle when 50% of fuel is burned) is most sensitive to variations in diesel fuel mass, level of exhaust gas recirculation, and charge gas temperature.

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Wisconsin Exhaust Diesel Gas 329

Green Car Congress

SEPTEMBER 22, 2015

A study by a team from the California Air Resources Board (ARB) has found that the collective cancer risk from exposure to seven toxic air contaminant (TACs) has declined 76% during the period from 1990 to 2012, and linked that result from air quality regulations targeting these TACs. However, in the study DPM is not measured directly.

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California Diesel Emissions Neighborhood 150

Green Car Congress

APRIL 19, 2013

A study by a team from Ford Motor Company and AVL has concluded that a mid-level ethanol blend—greater than E20 but less than E40—appears to be attractive as a long-term future fuel for the US for use in engines optimized for the higher octane blend. These include: Lower energy content than that of gasoline. Earlier post.)

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Engine Fuel Ford Future 253

Cars That Think

FEBRUARY 27, 2024

Although the pollutant emissions of a diesel engine are less than those of a gasoline one, it still emits carcinogens, nitrous oxides, and soot. To reduce emissions, diesel vehicles use filters that catch exhaust particles and other contaminants. Older models don’t even have the emission-control features that newer ones do.

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Carbon Diesel Emissions Bangladesh 107

Green Car Congress

MAY 25, 2014

A report prepared by ISIS (Institute of Studies for the Integration of Systems - Italy) together with Tecnalia (Spain) for the European Parliamentary Research Service (EPRS) discusses the technological, environmental and economic barriers for producing methanol from carbon dioxide, as well as the possible uses of methanol in car transport in Europe.

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Transportation CO2 Carbon Hydrogen 244

Green Car Reports

NOVEMBER 1, 2011

We all know that exhaust fumes do bad things to us and our planet, and that gasoline fumes contain carcinogens, but the biggest risk to your health might come from the gas pump itself, not the gasoline.

Gas 108

Gas Exhaust Gasoline 108

Green Car Congress

APRIL 16, 2012

The gasoline-alternative biofuel candidate 2,5-dimethylfuran (DMF) ( earlier post ) demonstrates favorable characteristics to be an effective cold-start fuel, according to a new study comparing the ignition timing sensitivities of oxygenated biofuels to gasoline in a direct-injection engine, published in the journal Fuel.

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Fuel Gasoline Universal Exhaust 218

Green Car Congress

JULY 4, 2019

It operates on both inlet and exhaust valves, offering endless development opportunities, including allowing researchers to focus on crucial combustion and after-treatment strategies, key to reducing emissions and improving fuel consumption. SCI Systems use four independent iVT actuators (one per valve).

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Concept Future Land Rover Exhaust 275

Green Car Congress

AUGUST 19, 2009

Gasoline and hydrogen rails and injectors installed on the intake manifolds. Changwei Ji and Shuofeng Wang modified a 4-cylinder (SI) engine to permit hydrogen and gasoline to be injected into the intake ports simultaneously to realize a hybrid hydrogen-gasoline engine (HHGE). Credit: ACS. Click to enlarge.

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Gasoline Hydrogen Emissions Engine 218