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A team at Oak Ridge National Laboratory (ORNL) has achieved diesel-like efficiency in a single-cylinder spark-ignition (SI) research engine while maintaining compatibility with stoichiometric 3-way catalyst (TWC) systems. diesel engines are expected to meet significant technical barriers in being able to meet future NO x regulations.
Heavy-duty diesel vehicles using mixing controlled compression ignition (MCCI), the most common ignition and combustion strategies for heavy-duty diesel engines, contribute significantly to the emissions of GHG, oxides of nitrogen (NO x ), and particular matter (PM) and are subject to stringent emission standards. GLE and $0.9/GLE.
Audi of America introduced four new TDI clean diesel models for the US market this year—the Audi A8, A7, A6, Q5—along with an updated Q7 TDI, all equipped with a second-generation 3.0L V6 TDI diesel engine. ” One of our primary goals and objectives is to level the playing field for clean diesel vehicles.
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. Earlier post.).
A new total cost of ownership (TCO) study from the National Renewable Energy Laboratory (NREL) finds that battery-electric and fuel-cell electric commercial trucks could be economically competitive with conventional diesel trucks by 2025 in some operating scenarios. —Hunter et al.
TCO for selected gas and diesel vehicles over a 3 year timeframe. 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).
Diesel engine torque output as a function of the engine speed (rpm) for the tested fuels. Here, we have selected a representative from each of these three groups, produced biodiesel, have characterized the properties of the fuels in comparison to biodiesel produced from plant oils. of the value obtained for diesel #2.
liter diesel, prominently showing the closely attached exhaust aftertreatment system. liter TDI diesel (EA288) will eventually replace all the 2.0-liter liter TDI Clean Diesel engines fitted in Audi and Volkswagen TDI Clean Diesel models, and as such, is a strategically important engine. The new MDB EA288 diesel.
Mercedes-Benz has begun sales of two diesel models of the new GLE SUV which already comply with the coming Euro 6d emissions standard. The OM 656 six-cylinder diesel engine comes with 243 kW (330 hp) and 700 N·m of torque in the GLE 400 d 4MATIC (combined fuel consumption: 7.5-7.0
One high-efficiency combustion concept under investigation is gasoline compression ignition (GCI)—the use of gasoline-like fuels to deliver very low NO x and PM emissions as well as high efficiency in a diesel compression ignition engine. direct-injection light-duty diesel engine. Earlier post.) —Adams et al. Kalghatgi, G.,
NO x emissions results of biodiesel, renewable, and GTL diesel fuel blends, and CARB diesel fuel for 2006 Cummins ISM. They also found that increasing renewable diesel (Neste Oil’s NExBTL) and gas-to-liquids (GTL) diesel blends showed NO x reductions with rising blend level. Credit: ACS, Hajbabaei et al. Earlier post.).
Customers of the Volkswagen Passenger Cars brand in Germany are once again placing more orders for diesel vehicles. In 2018, the share of incoming orders for vehicles equipped with the latest diesel technology as a proportion of the overall vehicle portfolio was 43% compared to 39% in 2017.
The US Department of Energy’s (DOE)’s National Renewable Energy Laboratory (NREL) has published a report on an 18-month evaluation of in-service second-generation diesel-electric hybrid delivery vans and found significant fuel economy benefits of the hybrids compared to similar conventional vans. —“Eighteen-Month Final Evaluation.
CAT-DEF—Catalyzed Diesel Exhaust Fluid—is an SwRI-developed catalyst- and surfactant-modified diesel exhaust fluid (DEF) solution. The internally funded advancement successfully reduced heavy-duty diesel engine nitrogen oxide (NO x ) emissions to meet the California Air Resources Board (CARB) 2027 standards.
Audi testing of synthetic ethanol (Audi e-ethanol = Joule Sunflow-E) and synthetic diesel (Audi e-diesel = Joule Sunflow-D), produced in partnership with Joule ( earlier post ) in a pressure chamber and optical research engine has shown that the Audi e-fuels often perform better than their conventional counterparts. Click to enlarge.
The study found that TCO for electric and diesel medium-duty urban delivery trucks were similar. Researchers at Georgia Tech have compared medium-duty (MD) electric and diesel urban delivery trucks in terms of life-cycle energy consumption, greenhouse gas (GHG) emissions, and total cost of ownership (TCO). Credit: ACS, Lee et al.
Tula Technology is presenting its diesel Dynamic Skip Fire (dDSF) technology ( earlier post ) at the 4 th Future Diesel Powertrain Summit China 2020 on 24-25 September 2020 in Shanghai, China. Comparison of baseline and dDSF CO 2 and NO x on HD FTP cycle and LLC. dDSF Simulation Project. Source: Tula.
Bosch, a leading supplier of technology for diesel engines, recently provided an overview of trends it sees in the diesel engine marketplace globally. In addition to the ongoing strength in the European market and India (the second-largest diesel market after Europe, Bosch sees potential strength in North America and China.
EU-funded scientists developed a novel 320 kW (429 hp) diesel engine for light helicopters as an alternative to conventional turboshaft engines. Helicopters conventionally employ a turboshaft engine that has a much better power-to-weight ratio compared to diesel engines. The engine weight is the crux of the project.
In Europe, the average amount of NO x present in exhaust emissions from modern diesel passenger cars under real-world conditions is more than double the levels from modern trucks and buses, according to a new briefing paper released by the independent research organization International Council on Clean Transportation (ICCT). Source: ICCT.
Opel is introducing a new advanced diesel in the Grandland X compact sport utility vehicle (SUV). liter, four-cylinder, turbocharged diesel is more powerful and more economical than the engine it replaces. WLTP measurements converted to NEDC values for comparison purposes.) In comparison to its predecessor, the 88 kW/120 hp 1.6-liter
In comparison our lithium-iron-phosphate (LFP) batteries have ten times the life, cycling over 4,000 times. 150 Ah battery has two to three times the energy of a lead-acid battery, and 1,000 cranking amps for starting heavy duty diesel engines. Lead acid batteries typically get 200-400 cycles before they fail. —Philip M.
Comparison of power loss and fuel consumption among BD, HVO and iso-HVO. liter diesel engine and passenger car. liter diesel engine and passenger car. On the emissions side, iso-HVO and HVO blended diesel emit less THC and CO than BD, even though iso-HVO blended diesel emits similar level of NO x and PM to blended BD.
Battery electric trucks should be the baseline for hydrogen fuel cells electric vehicle (HFCEV) comparisons, rather than any internal combustion engine alternative. Stop comparisons of fill times. In a zero-emission future world, as in California’s plans, diesel does not exist. What is the value of a comparison on fill times?
Although both diesel and gasoline are made from oil, the trends in their prices do not always go in parallel. While personal driving (which uses primarily gasoline) is down greatly because of various stay-at-home mandates, commercial truck transport (which uses primarily diesel) has been substantially less affected. of 1.291).
This option is an addition to the range of technologies and sustainable fuels that Irizar is currently offering, including electric buses, diesel coaches, biofuel, natural gas, HVO, hybrid, biofuel and B100. Beyond providing greater thermal performance than diesel, noise levels are also reduced by 50%.
Volkswagen has introduced a new version of the Golf GTD (“Gran Turismo Diesel”) in Europe, and plans to bring it to the US market, reportedly likely for the 2016 model year. diesel delivering 184 horsepower (137 kW), 280 lb-ft (380 N·m) of torque, CO 2 emissions of 109 g/km, and a NEDC combined fuel economy figure of 56 mpg US (4.2
During a media event in Wolfsburg, Germany, Volkswagen provided a medium dive into details of its two-seater XL1 Super Efficient Vehicle diesel plug-in hybrid ( earlier post ) as well as some driving time on local roads and highways. two-cylinder diesel, 20 kW electric motor and 5.5 The two-cylinder diesel is very audible when it runs.
. “The best-performing electric car manufacturer is Tesla, while Skoda and Audi lead for diesel and gasoline-powered cars, respectively. Comparative Insights: While Tesla led the study’s overall rankings, Skoda topped the diesel category with an expected lifetime mileage of 181,000 miles over 17.7
This rise in average CO 2 emissions correlates with a decrease in demand for diesel cars across Europe—which produce lower CO 2 emissions than gasoline cars—and the rising popularity of SUVs, which emit higher average CO 2 emissions of 133.0 In turn, diesel cars accounted for just 43.8% g/km—a difference of 5.5
The analysis covered 23 markets in Europe and found a direct correlation between diesel car registrations and average CO2 emissions. With increased negative public perception towards diesels, combined with new government regulations such as WLTP and scrutiny of the fuel type, demand for diesel fell by 18% in 2018.
A new study by an international team led by researchers from the Paul Scherrer Institute (PSI) in Switzerland has found that modern diesel passenger cars equipped with diesel particulate filters (DPFs) emit fewer carbonaceous particulates than gasoline-powered vehicles. times more SOA than POA after 5–10 hours of atmospheric aging.
LH2 Europe will use the abundant renewable electricity in Scotland to produce green hydrogen and market it at a competitive price with diesel. As a comparison, LNG tankers use ballast water to compensate the loss of weight following delivery to ensure enough draft. Hydrogen will be essential to the future of energy.
The Roadmap Roundup also includes cross-cutting observations and recommendations gleaned from a comparative analysis of the state plans and a tool that generates custom side-by-side comparisons among states.
The VW diesel scandal began on 18 September 2015. On the opening day of the Frankfurt International Motor Show (IAA), the US Environmental Protection Agency (EPA) published a Notice of Violation: VW diesel engines with 1.6 liter diesel the emissions were even 53% worse. liter diesel the emissions were even 53% worse.
Renault’s comparison of the carbon footprint of EV and ICE vehicles over production, operation and end of life. The publication gives the opportunity for an “apples-to-apples” comparison between the environmental impacts of the two types of powertrains: same manufacturer, same model, same boundary conditions. Diesel Fluence dCi.
Perhaps surprisingly, the greenhouse gas footprint of blue hydrogen is more than 20% greater than burning natural gas or coal for heat and some 60% greater than burning diesel oil for heat, again with our default assumptions. Our analysis assumes that captured carbon dioxide can be stored indefinitely, an optimistic and unproven assumption.
Alongside three Volvo 7900 Electric Hybrid buses, Volvo’s diesel hybrid buses in both 18 m articulated and 12 m versions will also be tested on the route, as well as battery fuel cell buses and fuel cell buses from other manufacturers. The 4-cylinder, 5-liter Volvo D5F diesel engine produces 215 bhp and is installed vertically.
In comparison, the change between 2008 and 2019 (from 4.59 In terms of fuel consumption per distance driven, the change between 1973 (the year of the first oil embargo) and 1991 (from 7.75 gallons per 100 miles to 5.10 gallons per 100 miles) represents a compound rate of decrease of 2.3% gallons per 100 miles to 4.50
The eActros’ operation at Logistik Schmitt has therefore proven that a battery-electric truck can perform the same tasks as a conventional diesel vehicle. The operation of the eActros on the new route represents an initial step towards the concept comparison with eWayBW. In doing so, it has transported around 30,000 tonnes of freight.
The International Council on Clean Transportation (ICCT), one of the organizations at the root of uncovering the Volkswagen diesel emission scandal ( earlier post ), has published a new analysis of developments and trends in advanced diesel engine technology. The new diesel paper is part of this series. Background.
Mercedes-Benz is expanding Vito van range with enhancements including new high-torque four-cylinder diesel engines for the Vito Tourer with passenger car approval. In comparison to the predecessor, the new OM 654 diesel engine range reduces emissions and fuel consumption while also optimizing noise and vibration comfort.
Natural gas does not offer climate benefits compared to gasoline and diesel, and many biofuel pathways do not, either. —“A global comparison of the life-cycle greenhouse gas emissions of combustion engine and electric passenger cars”. Life-cycle GHG emissions for global typical medium-size passenger cars registered in 2030.
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