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Fuel and vehicle propulsion strategy. Alternativefuels have the potential gradually to replace fossil energy sources and make transport sustainable by 2050, according to a report presented to the European Commission last week by the stakeholder expert group on future transport fuels. Source: ERTRAC) Click to enlarge.
Peak combustion pressures will rise from 110 bar to 130 bar and even 160 bar in engines using alternativefuels such as E100, compressed natural gas (CNG) or others, Federal-Mogul notes. Cutaway of the Advanced Elastoval II piston. Click to enlarge.
The survey, conducted by the Consumer Reports National Research Center, found that car owners were open to different ways of saving at the pump, from downsizing to looking at hybrids, electric cars, or models with diesel engines.
Researchers at Tianjin University in China report that combing split injection to the Miller cycle with boost pressure can effectively decrease the knock tendency and increase the engine torque in a downsized spark-ignition engine. Their paper is published in the journal Fuel. 2017.11.006.
Although Navigant expects the use of alternativefuels and electric power to continue growing, gasoline will remain the leading fuel in the coming years, albeit in less conventional vehicles that employ a range of fuel-efficiency technologies, such as downsized engines and turbocharging.
Navigant also projects that investments in alternativefuel and fuel efficiency improvements will reduce annual energy consumption in the United States year-over-year. The alternativefuels market share will grow from roughly 7.4% quadrillion Btu projected to be consumed in 2014.
A team from McMaster University in Canada has published a comprehensive review of recent progress in low-temperature combustion (LTC), alternativefuels (AF), over-expansion Atkinson cycle, and waste heat recovery (WHR) techniques as applied to hybrid-specific engines. Their open-access paper is published in the journal Energy Reports.
Cobra could enable a 5–10% reduction in CO 2 emissions when implemented in conjunction with engine downsizing and down speeding strategies, and potentially more when used in conjunction with alternativefuels, according to CPT.
Furthermore, the market for vehicles that reduce fuel consumption is becoming more competitive due to other fuel efficient and alternativefuel technologies.
Use of a variable compression ratio (VCR) could be one technology approach to reducing fuel consumption in highly boosted (e.g., downsized, turbocharged) gasoline engine, as operating an engine with higher compression ratios at low load can increase fuel economy compared to operating an engine with fixed compression ratio.
promote dialogue with relevant stakeholders on a voluntary fuel labeling scheme. monitor the implementation of the National Renewable Energy Action Plans, in particular the effective biofuel blending rates used in different Member States and the compatibility of fuels with vehicle technologies.
Both NHTSA and EPA are continuing to offer credits for vehicles designed to operate on alternativefuels, although these credits will no longer be available after model year 2015 under the EPA greenhouse gas program. Flex-fuel and AlternativeFuel Vehicle Credits. Advanced Technology Credits.
Downsized, heavily turbocharged engines with high levels of aftertreatment such as particulate filter systems and selective catalytic reduction (SCR) run hotter than their predecessors, explained Frank Zwein, Federal-Mogul’s global application engineering director, Valve Seats and Guides.
Chrysler’s new powertrain strategy is relying on the rapid transfer of Fiat Group technology for Multiair; Gasoline Direct Injection; turbocharging and alternativefuels to support rapid downsizing and improvement of fuel economy, along with the simplification of the company’s engine line-up, according to Paolo E.
Those consumers who buy a new vehicle with a typical 5-year loan will benefit from an average monthly cash flow savings of about $12 during the loan period, or about $140 per year, on average, as the monthly fuel savings more than offsets the higher monthly payment due to the higher incremental vehicle cost. NHTSA and CAFE.
In a policy analysis in the ACS journal Environmental Science & Technology , researchers from the Universities of Cambridge, Exeter and Oxford argue that, due to the increased emphasis on alternativefuels with drastically differing energy densities, vehicle efficiency should be evaluated based on energy rather than volume.
This is also an advantage because cooling systems can be downsized or removed altogether. Having investigated power issues arising from conventional and alternativefuels, he looked in great depth at onboard hydrogen storage issues and fuel cell development for the automotive industry.
(Alternatively, in the second study, gasoline–alcohol DFSI is based on PFI of gasoline and DI of alcohols.). However, engine knock with high pressure rise and pressure oscillation caused by end-gas auto-ignition is still the big obstacle for deep improvement of fuel consumption.
The new coating also was developed to help meet requirements for new production engines planned for 2018-2020, which call for less cylinder-bore friction and the use of lower-viscosity oils and alternativefuels. It provides the superior performance of a more costly premium inlaid top ring. Typically high-output engines under 3.5
Technologies combined in this package are all synergistic and provide a route to the efficient use of alternativefuels, accelerating the displacement of fossil fuels. The automotive industry, including Lotus Engineering, has quite rightly advocated engine downsizing for four-stroke engines.
Delphi is highlighting new developments in the area of fuel injection systems, ignition, valve train and ancillary systems for improving fuel consumption and lowering CO 2 emissions from spark ignition engines without what it calls the cost and risk of different technologies.
Within advanced ICE technologies, engine downsizing, turbocharging, optimized cooling, low friction, start-stop systems, electric power steering, direct injection, and variable valve timing will likely lead. Alternativefuels could also play a role in emission reduction for ICE-propelled vehicles, BCG notes. Source: BCG.
Michael Sivak of the University of Michigan Transportation Research Institute (UMTRI) examined several topics related to fuel economy and advanced vehicle technologies. 52% of respondents said it didn’t matter to them how a vehicle saves fuel and reduces emissions. Recommendations. National Research Council.
The competition against PHEVs in 2030 is likely to incorporate a radically downsized, boosted direct-injection engine; an automated manual or 7-8 speed automatic transmission; advanced tires with C R at 0.006 or below; a 30% weight reduction on the glider; advanced aerodynamics with C D of 0.22 Steven Plotkin.
Volvo Technology of America LLC will develop and demonstrate a tractor trailer combination with lightweight cab that achieves the freight efficiency goal using alternative engine designs and a variety of system technologies. valve faces, piston crowns, and exhaust ports) to improve fuel economy. General Motors. HRL Laboratories, LLC.
For the next generation of powertrains currently under development, Cobra provides engine designers with the opportunity to achieve up to 10% reduction in CO 2 emissions when implemented with engine downsizing and downspeeding strategies, and potentially more when used with alternativefuels.
Most green car enthusiasts would claim that it was General Motors’ and Chrysler’s lack of foresight in embracing green cars and alternativefuel technologies that led to their downfall. The author points out the shortcomings of downsizing vehicles stating that small cars depreciate faster and are of less value as trade-ins.
The alternative-fuel car evolved to reduce exhaust emissions and other problems derived from burning fossil fuels. The PHEV (Plug-in Hybrid Electric Vehicle), a subset of the electric car, combines a primary electric motor with a much smaller back-up engine fueled with a hydrocarbon/biofuel mix.
Reinert says any combustion engine can be made flex-fuel, so he agrees with the environmentalists and policy hawks that these cars can be built without too much trouble. We hope Ford will, and then move ahead! are looking at plug-in hybrids and you made some very good points in your presentation," and ".yes,
Environmental Protection Agency (EPA), which stewards the RFS, had repeatedly downsized the targets by nearly 25 percent. Meanwhile, agriculture industry lobbyists fought just as hard against those reductions.). By the mid-2010s, the U.S. In 2016, a U.S.
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