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The 2022 FuelEconomy Guide, released by ORNL for the DOE/EPA fueleconomy.gov website, provides up-to-date information on fueleconomy, environmental and safety data, so consumers can choose the most fuel-efficient vehicle that meets their needs. Credit: Andrew Sproles/ORNL, U.S.
A team from the University of Tennessee and the National Renewable Energy Laboratory (NREL) has the fuel savings due to fueleconomy improvements over the past 43 years amount to approximately two trillion gallons of gasoline. Fleet-wide fueleconomy gains produced large fuel savings. Greene et al.
At the US Department of Energy’s (DOE’s) Annual Merit Review meeting in Washington, DC last week, Michael Ruth from Cummins noted that the DOE program target for the project is a fueleconomy (CAFE) target of 26 mpg (9.05 Cost of the new engine relative to gasoline baseline. Earlier post.). l/100 km) for a vehicle of that size.
Researchers at the US Department of Energy’s Pacific Northwest National Laboratory (PNNL) have developed an onboard separation system that could support increased fueleconomy and lower greenhouse gas emissions as part of an octane-on-demand fuel-delivery system. Unfortunately, these engines exacerbate engine knock.
Improving fueleconomy exhibits diminishing returns in fuel savings, according to a brief analysis by the US Energy Information Administration (EIA). Similarly, the fuel and cost savings of improving fueleconomy from 12 mpg to 15 mpg are the same as increasing from 30 mpg to 60 mpg.
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. When fueled by hydrogen produced from landfill gas, the total dropped to 117 g CO 2 e/mi.
Diesel will surpass gasoline as the number one transportation fuel worldwide by 2020 and continue to increase its share through 2040, according to ExxonMobil’s recently published Outlook For Energy: A View To 2040. Sources for fueleconomy gains in light-duty vehicles. Click to enlarge. Source: ExxonMobil Outlook.
In this case—which reflects only current laws and regulations—renewable energy is the fastest-growing energy source through 2050, while petroleum remains the largest share of energy consumption throughout that period, followed by natural gas. Source: U.S. Energy Information Administration, Annual Energy Outlook 2022 (AEO2022).
With alternative fuel vehicles now approaching 1% of new vehicle production, however, they are in fact beginning to have a “ measurable and meaningful impact ” on overall new vehicle fueleconomy and CO 2 emissions. In the analysis, EPA uses overall fueleconomy in mpg equivalent (mpge) and tailpipe CO 2 emission values.
Volkswagen has developed and deployed a gasoline engine that offers diesel-like fueleconomy but is significantly cheaper to buy. TSI ACT BlueMotion delivers 96 kW / 130 PS with combined fuel consumption of 4.8 Compared with other gasoline engines, the intake valves of the 1.5 l/100 km (49 mpg US).
However, they also noted, high PTW efficiencies and the moderate fueleconomies of current compressed natural gas vehicles (CNGVs) make them a viable option as well. The WTW analysis focused solely on the fuel-motive power cycle, disregarding the vehicle cycle—i.e., —Curran et al.
liter ESTEC (Economy with Superior Thermal Efficient Combustion) in-line 4-cylinder Gasoline Engine (1NR-FKE). Further, at low loads, the ESTEC engine improves fuel consumption by 11% in the JC08 mode. Improving the vehicle fueleconomy is a must due to the climate change and energy issues. Performance recovery.
In the US, Model Year (MY) 2018 vehicle fueleconomy was 25.1 Since MY 2004, CO 2 emissions have decreased 23%, or 108 g/mi, and fueleconomy has increased 30%, or 5.8 Average estimated real-world CO 2 emissions are projected to fall 6 g/mi to 346 g/mi and fueleconomy is projected to increase 0.4
A new study by a team at the National Renewable Energy Laboratory (NREL) concludes that a high-pressure, scalable, intra-city hydrogen pipeline system could improve the economics and logistics of hydrogen delivery, making it potentially cost-competitive with gasoline. 200 psi, in natural gas distribution pipelines.
A “well-to-wheel” life cycle assessment (LCA) by a team from synthetic fuels producer Greyrock ( earlier post ), and the National Renewable Energy Laboratory (NREL) has determined the potential reduction of greenhouse gases and criteria pollutant emissions from the use of synthetic fuels directly converted from flare gas.
Southwest Research Institute (SwRI) has built a demonstrator vehicle, based on a 2012 Buick Regal GS, incorporating the latest D-EGR (dedicated EGR) technology ( earlier post ), an outgrowth of SwRI’s HEDGE (High Efficiency Dilute Gasoline Engine) consortium projects ( earlier post ). In 2013, SwRI reported a 2.0-liter
unveiled the first generation of its new, proprietary enhanced spark-ignited (ESI) natural gas system. Using 100% dedicated natural gas as fuel, Westport’s new technology optimizes the combustion and thermal efficiencies of the engine by taking advantages of the positive properties of natural gas. mono-fuelgas engine.
improvement in city fueleconomy (24.5 Southwest Research Institute (SwRI) announced preliminary test results of its Dedicated-Exhaust Gas Recirculation (D-EGR) demonstration vehicle ( earlier post ) at the SAE 2014 World Congress in Detroit. liter gasoline direct injection engine. Overall, the engine offered a 13.1%
The US Environmental Protection Agency (EPA) released its 28 th annual Inventory of US Greenhouse Gas Emissions and Sinks (GHG Inventory), which presents a national-level overview of annual greenhouse gas emissions from 1990 to 2019. from 2018 to 2019, and CO 2 emissions just from fossil fuel combustion decreased 2.7%
While oil will remain the most widely used fuel, overall energy demand will be reshaped by a continued shift toward less-carbon-intensive energy source as well as steep improvements in energy efficiency in areas such as transportation, where the expanded use of advanced and hybrid vehicles will help push average new-car fueleconomy to 48 mpg (4.9
T-GDi Engine, a four-cylinder gasoline turbo unit with 180 horsepower and 27.0 The new powertrain is the first to utilize the Group’s new CVVD technology and also features Low-Pressure Exhaust Gas Recirculation (LP EGR) to further optimize fuel efficiency. Unveiled alongside the new CVVD technology was the new Smartstream G1.6
As part of the new technology to achieve this vision, the company disclosed plans to introduce a next-generation gasoline engine called SKYACTIV-X in 2019. This new proprietary combustion engine combines the advantages of gasoline and diesel engines to optimize environmental performance, power and acceleration performance. Yamasaki, Y.,
Hyundai Motor Group will collaborate with the Saudi Arabian Oil Company (Aramco) and King Abdullah University of Science and Technology (KAUST) jointly to research and develop an advanced fuel for an ultra lean-burn, spark-ignition engine that aims to lower the overall carbon dioxide emissions of a vehicle.
A new University of Michigan study finds that making the switch to all-electric mail-delivery vehicles would lead to far greater reductions in greenhouse gas emissions than previously estimated by the US Postal Service (USPS). An all-electric fleet would reduce lifetime greenhouse gas emissions by 14.7 Earlier post.). Woody et al.
Reducing the number of exhaust gas particulates, including those smaller than 23 nm, will help manufacturers meet increasingly stringent future global emissions standards. —Walter Piock, chief engineer, Gasoline Systems, Delphi Technologies. Delphi 500+ bar GDi pump. Delphi 500+ bar GDi injector.
The new Focus features a broad suite of Ford advanced driver assistance technologies and advanced EcoBoost gasoline and EcoBlue diesel engines offering a 10% fuel-efficiency improvement across the range. Particulate emissions are reduced using standard gas particulate filter technology. Ford has unveiled the all-new Ford Focus.
EPA fueleconomy ratings and gas-electric range rating determined by Honda.). liter 4-cylinder Atkinson-cycle gasoline engine producing 137 hp (102 kW) at 6200 rpm, teamed with a 124 kW electric motor. At higher speeds or under high demand for acceleration, the gasoline engine can kick in to provide additional power.
USenergy-related carbon dioxide emissions and fossil fuel energy consumption. In the United States, emissions associated with the consumption of petroleum fuels—motor gasoline, distillate, jet fuel, and more—have consistently made up the largest portion of CO 2 emissions.
Researchers at the MIT Joint Program on the Science and Policy of Global Change have compared the worldwide economic, environmental, and energy impacts of currently planned fueleconomy standards (extended to the year 2050) with those of region-specific carbon prices designed to yield identical CO 2 emissions reductions.
It will be compliant to the US EPA’s 2027 regulations while providing a step change in fueleconomy improvement. Cummins is offering a full portfolio of products in 2026 to cover the medium-duty and heavy-duty customer needs, including the new 15-liter natural gas engine, the X15N. Additionally, the B6.7
As she outlined it: eAssist provides a average 25% fueleconomy improvement over a traditional internal combustion engine vehicle. GM estimates it will save a driver of a larger car about $1,850 a year in fuel. The technology is targeted for individuals who want a large sedan with compact car fueleconomy, Fletcher said.
Volt owners who charge regularly typically drive more than 970 miles between fill-ups and visit the gas station less than once a month. The 2014 Volt provides owners with fueleconomy of EPA-estimated 98 MPGe (electric) and 35 city/40 highway on gasoline power.
On the gasoline side, the 2013 Ram 1500 equipped with a 3.6-liter liter Pentastar V-6 gasoline engine earned 25 mpg (9.4 The Ram 1500 now owns the half-ton pickup segment’s top two spots in the EPA’s 2014 highway fuel-economy rankings. The combined city/highway rating is 23 mpg (10.2 l/100 km.). The all-new 3.0-liter
Russia’s invasion of Ukraine and the skyrocketing fuel prices that ensued last year got me thinking about how to cut down on my consumption of gasoline. I knew, though, that it was going to be difficult to test out different driving techniques without more immediate feedback of their effects on fueleconomy. Mine doesn’t.
The Environmental Protection Agency (EPA) is finalizing the federal greenhouse gas (GHG) emissions standards for passenger cars and light trucks for Model Years (MY) 2023 through 2026. CO 2 , Compared to the Proposal and 2012 and 2020 Rules, grams/mile, 2021-2026. Source: EPA. The standards they replace increased in stringency by only 1.5%
Toyota estimates that the 2019 Avalon Hybrid will boost fueleconomy by up to 10% over its MY 2018 predecessor, from 40 mpg (5.88 liter four-cylinder Dynamic Force Engine is more fuel efficient, runs cleaner, and is more powerful than previous iterations, and excels at dissipating thermal inefficiencies. l/100 km) combined.
Using technology from the 2016 Chevrolet Volt propulsion system ( earlier post ), Malibu Hybrid will offer an estimated combined fueleconomy rating exceeding 45 mpg (5.22 The engine also features Chevrolet’s first application of Exhaust Gas Heat Recovery, or EGHR, technology, which uses exhaust heat to warm the engine and cabin.
Not only is it more powerful and contains up to 30% better efficiency than traditional gasoline, etc. Do they receive HOV access for their improved fueleconomy and ultra low emissions? In fact in 6 of the states, diesel fuel is penalized with additional state taxes. Exhaust gas aftertreatment system, shown in an A7.
A research team at the University of Wisconsin–Madison has identified a new way to convert ammonia to nitrogen gas through a process that could be a step toward ammonia replacing carbon-based fuels. This process can be harnessed to produce electricity, with protons and nitrogen gas as byproducts.
Ford has confirmed a 25-mpg combined EPA fueleconomy rating for the most fuel-efficient version of the F-150 hybrid lineup, which carries the PowerBoost badge. Ford says that 4x2 versions of the F-150 hybrid come in at 25 mpg city, 26 highway, and 25 combined—with a range of 750 miles on a tank of gasoline.
liter EcoBoost gasoline turbocharged direct injection (GTDI) four-cylinder unit. Ford says the engine can deliver up to 15% better fueleconomy than comparable six-cylinder engines. Weaver (2013) Advanced Gasoline Turbocharged Direct Injection (GTDI) Engine Development (DOE 2013 Merit Review).
The Responsible Battery Coalition, in partnership with the University of Michigan Center for Sustainable Systems, launched a comprehensive research project to compare the total cost of ownership of gas and electric vehicles (EVs). Projections of future gasoline and electricity prices. Refueling patterns based on driver time valuation.
The vehicles feature the fuel-efficient Atkinson-cycle engine, as well as a cooled Exhaust Gas Recirculation (EGR) system to further improve engine efficiency. Not only is friction loss reduced, coolant flow rate can be very precisely controlled, contributing to improved fueleconomy.
The rising fueleconomy of LDVs more than offsets the modest growth in VMT, resulting in a 25% decline in LDV energy consumption decline between 2012 and 2040 in the AEO2014 Reference case. As a result, annual increases in vehicle miles traveled (VMT) in LDVs average 0.9% from 2012 to 2040, compared to 1.2% per year, from 21.5
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