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A new study by a team from Environmental Health & Engineering (EH&E) has found that greenhouse gas emissions from corn ethanol are 46% lower than those from gasoline—a decrease in emissions from the estimated 39% done by previous modeling. gCO 2 e/MJ) which is 46% lower than the average carbon intensity for neat gasoline.
In early 2020, UK-based independent testing firm Emissions Analytics published a study claiming that tire particulate wear emissions were 1,000 times worse than exhaust emissions ( earlier post ). —Emissions Analytics. Quoting such ratios, however, needs careful interpretation.
Advocacy group Coltura has published a report that finds converting the biggest users of gasoline to EVs in the next ten years is critical to reaching climate goals and that present EV policies are poorly suited to accomplishing that conversion. Among the findings of the report: Drivers are highly unequal in their gasoline consumption.
Chevron USA kicked off a road trip across the US Gulf Coast to showcase an innovative new gasoline blend with more than 50% renewable content. During the tour, Chevron representatives will talk with members of the public about the benefits of lower carbon fuels such as biofuels and renewable gasoline blend.
C2G emissions are a sum of WTW emissions and emissions associated with vehicle manufacturing. Using current technologies, all evaluated biofuel, battery electric, and hydrogen fuel cell vehicle pathways offer significant C2G GHG emissions reduction compared to the current gasoline internal combustion engine vehicle.
Audi plants’ filling stations transitioned to R33 Blue Diesel ( earlier post ) last year; Audi has now introduced the gasoline counterpart, R33 Blue Gasoline. R33 Blue Gasoline ( earlier post ) now replaces conventional E10 gasoline. The renewable portion of the gasoline consists of 10% fuel oxygenates—e.g.,
Following on the introduction of R33 Blue Diesel ( earlier post ), Bosch, Shell, and Volkswagen have now developed a low-carbon gasoline. The new fuel, called Blue Gasoline, similarly contains up to 33% renewables, ensuring a well-to-wheel reduction in carbon emissions of at least 20% per kilometer driven. Every bit of CO?
By shifting the biggest gasoline users into ZEVs first, AB 2816 also reduces the total number of ZEVs that would be needed to reach the state’s near-term target of cutting light-duty vehicle emissions in half by 2030. California’s biggest gasoline users currently are on track to be the last people to switch to ZEVs.
The European Association for Emissions Control by Catalyst (AECC) presented its zero-impact emissions demonstrator car at the Vienna Motor Symposium, 27-29 April. At the same time, Well-to-Wheel (WtW) CO 2 emissions are substantially reduced by running the vehicle on an e-fuel. Resources.
Developed on a new architecture, the all-new Sportage will offer gasoline and diesel powertrains at market launch later this year, followed by hybrid-electric (HEV) and plug-in hybrid electric (PHEV) models. The Sportage will be launched with a range powertrains, including clean gasoline and diesel IC engine technology.
Blending ammonia with a small amount of dimethyl ether (DME) gives a liquid fuel with low-temperature combustion properties very similar to gasoline, researchers at KAUST have shown. The team found that an 18% molar blend of DME in ammonia mimicked the low-temperature combustion behavior of representative gasoline fuel.
A study led by environmental health scientists at Columbia University Mailman School of Public Health examined the release of vapors from gasoline station vent pipes, and found benzene emissions were 10 times higher than estimates used in setback regulations that determine how close schools, playgrounds, and parks can be to the facilities.
A team at Sandia National Laboratories has designed a five-component gasoline-like blend containing 40% vol of a mixture of 2-methyl furan and 2,5-dimethyl furan (representative of products of a viable pathway to make furans from bio-feedstock). Simulations show promising results when the resulting fuel is compared to regular E10 gasoline.
A team at the University of Madison-Wisconsin studied critical sooting equivalence ratios and subsequent particulate formation during spark-ignition combustion for blends of ethanol, isobutanol (2-methyl-1-propanol), and methylbutenol (2-methyl-3-buten-2-ol) with gasoline using premixed prevaporized (PMPV) fueling. 2022.124638.
In a commentary in the journal Joule , Rob McGinnis, founder and and CEO of Prometheus , a company that is developing technology to remove carbon dioxide from the air and turn it into fuels, discusses the technology advances that could lead to the potential price-competitiveness of renewable gasoline and jet with fossil fuels.
On this basis, and of Pareto efficiency, Emissions Analytics argues, until battery-electric vehicles can reach certain performance characteristics, government and industry support should switch immediately from EVs to full hybrids to create maximum welfare. The test cycle was made up of five repeats of the EQUA cycle, totalling 741 km.
Electric truck company Tevva and Vattenfall signed a Memorandum of Understanding to explore the opportunity to provide a complete zero-emission transport solution for businesses looking to reduce the overall carbon impact of their operations. Tevva is an electric truck company with optional range extension technology that allows its 7.5-19t
A study by a team from UC Riverside has assessed the potential of increasing ethanol content in California reformulated gasoline (CaRFG) by investigating the exhaust emissions from a fleet of 20 Tier 3 light-duty vehicles. Acetaldehyde and ethanol emissions responded strongly with ethanol across the fleet of 20 vehicles.
BMW i Ventures has invested in Prometheus Fuels ( earlier post ), a company removing CO 2 from the air and turning it into zero-net carbon gasoline that it will sell at gas stations, at a price that competes with fossil fuels, starting as early as this year. The effective upgrading of alcohols to gasoline, diesel, and jet fuels.
When service stations in Algeria stopped providing leaded gasoline in July, the use of leaded gasoline in cars ended globally. Tetraethyl lead was used as a gasoline additive to improve engine performance. By the 1970s, almost all gasoline produced around the world contained lead.
In a recent open-access paper published in ACS’ Environmental Science & Technology , researchers from the University of York report that alcohols in windshield washer fluid account for a larger fraction of real-world vehicle emissions than previous estimates have suggested. Cliff et al. —Cliff et al.
UK Transport Minister Trudy Harrison announced more than £200 million (US$244 million) of government funding will be injected into an extensive zero-emission road freight demonstrator program. But we must accelerate our journey towards our net zero goals, and we’re committed to leading the way globally on non-zero emission road vehicles.
Increased economic activity and a changing fuel mix in the electric power sector in 2021 will lead to a significant increase in energy-related carbon dioxide emissions this year, according to the US Energy Information Administration’s (EIA) August Short-Term Energy Outlook (STEO). Gasoline prices averaged $3.14
by Michael Sivak, Sivak Applied Research The overall advantage of battery electric over gasoline vehicles, in terms of well-to-wheels emissions of greenhouse gases, has been well documented. However, the emissions of electric vehicles depend greatly on the energy source used to generate the electricity that powers them.
A team of researchers in China suggest that, in the context of promoting the use of clean fuel vehicles and increasing vehicle fuel efficiency, CO 2 emissions of China’s urban passenger transport sector could reach a peak of 225 MtCO 2 in 2030. A paper on their study appears in the journal Energy Policy. —Li and Yu.
A new report from RMI has found that optimized charging of electric vehicles, which involves automatically and strategically shifting when an EV charges, could significantly reduce transportation sector emissions, and could potentially result in an average of 800 pounds of CO? saved per vehicle annually. million ICE vehicles off the road.
The US Department of Energy (DOE) has published a Beyond Tailpipe Emissions Calculator that provides estimates of total greenhouse gas (GHG) emissions associated with driving an electric vehicle (EV) or plug-in hybrid electric vehicle (PHEV), including emissions from the production of electricity used to power the vehicle.
The California Air Resources Board approved a measure that will require most newly manufactured small off-road engines (SORE) such as those found in leaf blowers, lawn mowers and other equipment be zero emission starting in 2024. Older models on store shelves can also be purchased even if they are gasoline-powered.
A team at Shanghai Jiao Tong University (SJTU) is proposing a new combustion mode—intelligent charge compression ignition (ICCI)—for ultra-high efficiency and low emissions simultaneously. ICCI aims to realize flexible and controllable in-cylinder charge stratification fed by two complementary fuels: gasoline and diesel.
The US Environmental Protection Agency (EPA) announced a proposed determination that emissions of lead from aircraft that operate on leaded fuel cause or contribute to air pollution that may reasonably be anticipated to endanger public health and welfare. EPA is not proposing aircraft engine lead emission standards with this action.
Lead levels in London’s atmosphere have dropped significantly since lead additives in gasoline were phased out, and currently meet UK air quality targets. The study, led by researchers from Imperial College London, found that up to 40% of lead in airborne particles today comes from the legacy of leaded gasoline.
The ORNL team conducted engine experiments with both 91 RON E10 gasoline and liquified petroleum gas (LPG). 1 for LPG only) improved engine efficiency by up to 30% compared with a production turbocharged gasoline direct injection spark ignition engine. . higher H/C ratio) than gasoline. and 32.6%, respectively. Splitter et al.
UK Prime Minister Boris Johnson confirmed that the government will accelerate the ban on the sale of new gasoline and diesel vehicles, bringing it forward by ten years to 2030, as part of a “Green Industrial Revolution.” The sale of hybrid cars will be allowed until 2035. billion (US$1.7
The ICCT has conducted a comprehensive global and temporal life-cycle assessment of GHG emissions from a variety of alternative passenger car powertrains and fuels. The life-cycle GHG emissions of cars registered in 2021 are compared with those of cars expected to be registered in 2030.
In the next step, the three desert prototypes with electric drive and energy converter will run in the 2023 Dakar Rally with an innovative fuel—a blend of ethanol-to-gasoline (ETG) and e-methanol. With this fuel mixture, the Audi RS Q e-tron saves more than 60 percent in carbon dioxide emissions.
AB 1346 would require new sales of SORE to be zero-emission by 2024 or whenever the California Air Resources Board (CARB) determines is feasible, whichever is later. Smog-forming emissions from small engines will surpass those from passenger vehicles this year. —Assemblymember Marc Berman.
Analysis of a study by S&P Global Mobility shows the number of new near-zero emission diesel trucks on the road in the US increased 10.2% Near-zero emission trucks are advanced diesel technology manufactured in the 2010 and later model years. are electric, and the remainder are gasoline or other fuels. are CNG, 0.3% That’s a 10.2%
The study also showed that the cytotoxic effect is only to some extent comparable to that of particles from gasoline and diesel engines. This process, already known to researchers from earlier experiments with particle emissions from gasoline and diesel engines, has now also been observed for particle emissions from aircraft engines.
A team at King Abdullah University of Science and Technology (KAUST) has developed a data-driven artificial intelligence (AI) framework to design liquid fuels exhibiting tailor-made properties for combustion engine applications to improve efficiency and lower carbon emissions. —Kuzhagaliyeva et al. Kuzhagaliyeva, N., Horváth, S.,
This new twin-dosing SCR system with dual AdBlue injection greatly reduces nitrogen oxide emissions compared with its predecessor. This makes it possible to drive into an urban destination area under electric power and with zero emissions, even at the end of a longer journey, if so required.
Based on preliminary economic activity and energy data, Rhodium Group estimates that greenhouse gas (GHG) emissions in the US slightly increased in 2022, rising 1.3% While this is the second year in a row that emissions have increased, it nonetheless marks a change from 2021, when emissions rebounded faster than the economic growth rate.
A recent study by leading UK-based independent emissions testing company Emissions Analytics tested four apparently similar pairs of gasoline-fueled vehicles between the US (without gasoline particulate filters (GPFs)) and Europe (with GPFs). Average emissions across the four pairs of vehicles. Emissions Analytics.
A new study by Zemo Partnership (formerly LowCVP) shows that with a market average of 30% high blend renewable fuels (HBRF), used in place of fossil fuels (diesel and natural gas) by 2030, the transport sector could save an additional 46m tonnes in GHG emissions over the next decade, with savings continuing to 2050.
The engine of the quasi-monovalent drive system is powered primarily with CNG (Compressed Natural Gas), but can also run on gasoline. The Golf TGI is also equipped with a gasoline tank with a useful capacity of 9 liters (2.4 kg of natural gas per 100 kilometers in combination with CO 2 emissions of 117–111 g/km. The new 1.5L
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