Green Car Congress

APRIL 14, 2021

a leader in propulsion efficiency, announced at SAE International’s WCX the results of their collaborative study on the effectiveness of Tula’s diesel Dynamic Skip Fire (dDSF) in reducing nitrogen oxides (NO x ) and carbon dioxide (CO 2 ) emissions on a Cummins X15 HD Efficiency Series diesel engine. Cummins Inc. and Tula Technology, Inc.,

Diesel 370

Diesel CO2 Emissions Engine 370

Green Car Congress

JUNE 23, 2023

However, few studies have used real-world rideshare trip data in their estimates, or included additional assessments of air pollution and traffic impacts, from the switch. The researchers collected simulated rides provided by three fleets: gasoline-powered, and electric-powered with either 40 kWh or 60 kWh battery packs.

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Fleet All-Electric Carbon Emissions 195

Green Car Congress

MARCH 16, 2012

Environmental impacts of gasoline and E85. previous studies have followed the general framework of life cycle assessment (LCA), they have focused almost exclusively on quantifying the energy balance and GHG emissions associated with biofuels production. Error bar shows regional variations for E85. GW = global warming; Eut.

Gasoline 357

Gasoline Water Emissions Minnesota 357

Green Car Congress

MAY 25, 2018

A new study by a team from Aarhus University in Denmark has found that car dealerships pose a significant barrier to electric vehicle adoption at the point of sale due to a perceived lack of business case viability in relation to gasoline and diesel vehicles. Their study is published in the journal Nature.

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Iceland Denmark Finland Norway 231

Green Car Congress

JANUARY 22, 2019

The study, conducted by Future Fuel Strategies , reviewed, assessed and compared nearly 100 different peer-reviewed vehicle emission studies. Many of the studies were organized by the Coordinated Research Council (CRC), which has the support of the petroleum industry and is relied upon by the EPA for fuels and emissions data.

Emissions 262

Emissions Long Beach Gasoline EPA 262

Green Car Congress

OCTOBER 29, 2012

Comparison of current federal subsidy to base case assumptions showing lifetime fuel savings (HomeEve charging scenario). An EPA estimate based on the Chevy Volt’s reported efficiency is also included for comparison. Peterson and Michalek 2012. Click to enlarge. Earlier post.). per gallon saved, ignoring indirect effects.

Gasoline 308

Gasoline PHEV Gasoline-Electric Batteries 308

Green Car Congress

JUNE 28, 2013

Diesel vehicles generally saved owners between $2,000 to $6,000 in total ownership costs during a three to five year period when compared to similar gasoline vehicles, according to data compiled by the University of Michigan Transportation Research Institute (UMTRI). —“Total Cost of Ownership”. Fuel Costs. Depreciation.

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Cost Of Diesel Gasoline Vehicles 262

Green Car Congress

JULY 19, 2013

Drivers of diesel vehicles can save thousands of dollars in total ownership costs compared to similar gasoline vehicles, according to a University of Michigan Transportation Research Institute (UMTRI) study. Among their findings:??.

Gasoline 247

Gasoline Diesel Vehicles Fuel Economy 247

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. — lead researcher Dr. Chis Frey.

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Vehicles Emissions North Carolina Gasoline 284

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

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.

Porsche 284

Porsche Hydrogen Gasoline-Electric Exhaust 284

Green Car Congress

JULY 9, 2015

While alternative powertrains still represent a small percentage of market share compared to gasoline engines, the report noted, clean diesels saw a 10% increase in 2014 sales over 2013 sales, while hybrids saw a 10% decrease, pure electrics saw a 20% increase and compressed natural gas saw a 33% decrease. Belzowski 2015. Click to enlarge.

Cost Of 150

Cost Of Gasoline Diesel Fuel Economy 150

Green Car Congress

MAY 24, 2016

New research published today (23 May) in Scientific Reports has found a marked and progressive 80% decline in atmospheric CO (carbon monoxide) in SE England since 1997, following adoption of strict controls on gasoline vehicle emissions begin in the 1990s. The open-access study is published in the journal Scientific Reports.

Gasoline 150

Gasoline Emissions 2003 London 150

Green Car Congress

JULY 11, 2013

Renault’s comparison of the carbon footprint of EV and ICE vehicles over production, operation and end of life. The study used the series production versions launched in 2011, with the assumption of operation for 150,000 km (93,205 miles). dCi); gasoline Fluence 16V (1.6L); and the battery-electric Fluence Z.E. (22 dCi (66 kW).

Li-ion 364

Li-ion Gasoline-Electric Ozone Diesel 364

Green Car Congress

MARCH 20, 2014

Comparison plot showing mass fractions (F m ) of chemically characterized components of lubricating oils and POA. Unburned diesel fuel makes an additional smaller contribution, with an additional smaller contribution from unburned gasoline. Credit: ACS, Worton et al. Click to enlarge. —Worton et al.

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Oil Gasoline Diesel Vehicles 207

Green Car Congress

MARCH 9, 2016

The Rice study by environmental engineer Daniel Cohan and alumnus Shayak Sengupta compared the net greenhouse gas-emission savings that could be realized by replacing other fuels in vehicles, furnaces and power plants. However, residential uses and exports of natural gas were not considered in those comparisons.

Gas-Electric 150

Gas-Electric Gas Transportation Coal 150

Green Car Congress

MARCH 6, 2018

Covering 23 European markets, the study found that average CO 2 emissions increased by 0.3 g/km in 2017—far higher than the average CO 2 emissions of diesel and gasoline vehicles across all segments. g/km in 2017—far higher than the average CO 2 emissions of diesel and gasoline vehicles across all segments.

Gasoline 244

Gasoline Diesel Emissions SUV 244

Green Car Congress

OCTOBER 9, 2020

Across the US the average annual cost of running an electric vehicle is $2,721.96, while gasoline vehicles cost an average of $3,355.90 When the purchase cost of each type of vehicle is factored in, average gasoline vehicles are $1,454 per year cheaper to run. per year to run—a difference of $633.94

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Purchase Cost Of Price Gasoline-Electric 321

Green Car Congress

JANUARY 7, 2021

Specifically, this study examines actual fuel economy of cars and light trucks (pickup trucks, SUVs, and vans) from 1966 through 2019. (My In comparison, the change between 2008 and 2019 (from 4.59 by Michael Sivak, Sivak Applied Research. This is the latest of my occasional updates on long-term trends in U.S. vehicle fuel economy.

Fuel Economy 435

Fuel Economy 2019 Economy Light 435

Green Car Reports

JULY 15, 2013

With relatively few electric vehicles on the market, drawing direct comparisons with regular gasoline and diesel vehicles is surprisingly difficult--not many vehicles are sold with all three drivetrains. The Ford Focus is one, and Renault''s Fluence sedan is another.

Gasoline-Electric 116

Gasoline-Electric Gasoline France Electric Cars 116

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. —Zimmerman et al.

Environment 150

Environment Emissions Exhaust 2014 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. Platt et al. Click to enlarge.

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Pollution Exhaust Emissions Light 362

Green Car Congress

AUGUST 22, 2015

Neste, currently largest producer of renewable drop-in fuels (primarily diesel) with its NEXBTL platform ( earlier post ), has filed a patent ( US20150144087 ) on a gasoline composition (and the method for making it) comprising up to 20 vol% (preferably from about 10-15 vol.%), of paraffinic bio-hydrocarbons originating from the NEXBTL process.

Gasoline 150

Gasoline Fuel Renewable Emissions 150

Green Car Congress

JUNE 26, 2015

In a new, comprehensive study, a team from Argonne National Laboratory, Stanford University and UC Davis ITS has estimated the well-to-wheels (WTW) GHG emissions of US production of gasoline and diesel sourced from Canadian oil sands. The study is published in the ACS journal Environmental Science & Technology. —Cai et al.

Oil-Sands 150

Oil-Sands Oil Gasoline Emissions 150

Green Car Reports

DECEMBER 16, 2014

Today we''ve got a study that--despite headlines to the contrary--doesn''t say "electric cars aren''t green," a comparison of diesel and gasoline-car ownership costs, and video of a Tesla Model S P85D trouncing a Ferrari in a drag race. All this and more on Green Car Reports. France could have.'

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Diesel Ferrari Electric Cars Cars 136

Green Car Congress

SEPTEMBER 24, 2012

Comparisons of life-cycle emissions from LUC phase for (a) sugar cane ethanol and (b) soybean biodiesel. The climate effects of land-use changes from increasing biofeedstock acreage, both indirect and direct, have dominated policy discussion, and focused on comparisons in long-lived GHGs. Credit: ACS, Tsao et al. Click to enlarge.

Gasoline 273

Gasoline Emissions Diesel Brazil 273

Green Car Congress

OCTOBER 25, 2010

They found that, on a life cycle basis in comparison to gasoline, the direct to ethanol technology can provide a 67% to 87% reduction in carbon footprint on an energy equivalent basis for initial ethanol concentrations (given in weight percent) ranging from 0.5% MJ/MJEtOH down to 0.20 g CO 2 e/MJEtOH down to 12.3 wt % to 5 wt %.

Carbon 246

Carbon Gasoline Gas-Electric Gasoline-Electric 246

Green Car Congress

DECEMBER 26, 2020

The results of the study are published in the journal Nanoscale. According to the comparison with the most popular materials as an electrode for methanol oxidation, the new solution has one of the best performance values and the highest resistance to carbon monoxide poisoning that usually causes the degradation of electrodes.

Fuel 418

Fuel Turkey Austria Switzerland 418

Green Car Congress

DECEMBER 17, 2013

The Electrification Coalition released two case studies outlining how two cities— Houston, Texas and Loveland, Colorado —are saving money by using electric vehicles (EVs) in their vehicle fleets. A similar study examining Loveland, Colo. Earlier post.). The vehicles are currently being reserved at a 47% utilization rate.

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Houston Fleet Tax Credit Plug-in 312

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.

Engine 271

Engine Exhaust Gasoline Diesel 271

Green Car Congress

AUGUST 21, 2015

According to a new lifecycle analysis by a team at Carnegie Mellon University, a battery electric vehicle (BEV) powered with natural gas-based electricity achieves around an average 40% lifecycle greenhouse gas (GHG) emissions reduction when compared to a conventional gasoline vehicle. The study is published in the ACS journal Energy & Fuels.

Gasoline-Electric 150

Gasoline-Electric Gas-Electric Gasoline Gas 150

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). Click to enlarge.

Exhaust 150

Exhaust Emissions Gasoline-Electric 2016 150

Green Car Congress

JANUARY 3, 2014

WTW energy demand and GHG emissions for EV and PHEV drivetrains for various electricity sources; gasoline ICE vehicle is solid square, hybrid the hollow square. The study by a team at the Swiss Federal Institute of Technology Zurich, reported in the Journal of Power Sources , is novel in three respects, the researchers said.

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Alternative Fuels Emissions Fuel Switzerland 252

Green Car Congress

SEPTEMBER 30, 2019

Specifically, this study examines actual fuel economy of cars and light trucks (pickup trucks, SUVs, and vans) from 1966 through 2017. In comparison, the change between 2008 and 2017 (from 4.59 by Michael Sivak. This is the latest of my occasional updates on retrospective, long-term trends in U.S. vehicle fuel economy.

Fuel Economy 397

Fuel Economy 2017 Economy Light 397

Green Car Congress

AUGUST 19, 2014

Their study appears in the ACS journal Energy & Fuels. … in this study the environmental impacts of delivering driven vehicle miles are compared for three different vehicle fleets, each powered either directly or indirectly by natural gas. Credit: ACS, Dai and Lastoskie. Click to enlarge. particulate matter formation (PMF).

Gas 218

Gas Li-ion Gas-Electric Conversion 218

Green Car Congress

AUGUST 9, 2012

In California’s Los Angeles Basin, levels of volatile organic compounds (VOCs) pollutants have decreased by about 98% since the 1960s, even as area residents now burn approximately three times as much gasoline and diesel fuel. This indicates that the main VOC source in the LA basin is likely gasoline vehicle emission.

Los Angeles 285

Los Angeles Gasoline Ozone 2002 285

Green Car Congress

FEBRUARY 12, 2011

Current case design block flow diagram of thermochemical gasoline from biomass-derived methanol and the methanol-to-gasoline process. Gasoline has a higher energy content than ethanol.) Source: NREL. Click to enlarge. gallon US ($0.52/liter). gallon US ($0.52/liter). gallon ($0.37/liter). per gallon ($0.41 per liter) and $1.49

Gasoline 225

Gasoline Gasoline-Electric Gas-Electric Convert 225