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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 ). All tire emissions figures quoted here are for the whole vehicle, combining wear from the four tires. mg/km for mass and 6.0
The SL 43 features an M139 in-line two-liter, four-cylinder gasoline engine with an electric exhaust gas turbocharger—used for the first time in a production vehicle. Innovative components such as the electric exhaust gas turbocharger help us to achieve this. This technology comes from Formula 1.
Exhaust particle size distributions measured by ELPI (color map) and particle concentration measured by CPC (white line) during individual engine braking conditions (speed change from 32 km/h to 0 km/h). The exhaust sample was taken from the exhaust manifold. The exhaust sample was taken from the exhaust manifold.
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. Hydrogen-enriched exhaust is routed to the intake. Click to enlarge.
This brief analysis examines the relative cost of the energy from milk and gasoline. Currently, a gallon of gasoline (with ethanol) contains 120,286 Btu of energy. The average price of regular gasoline in September 2020 was $2.183 per gallon. Therefore, the cost of 1,000 Btu from regular gasoline was $0.02.
GDCI engine was significantly better than advanced production spark injection gasoline engines, and comparable to very efficient hybrid vehicle engines at their best efficiency conditions (214 g/kWh). million grant to develop and to demonstrate a new ultra fuel efficient vehicle (UFEV) vehicle concept. Earlier post.)
ExxonMobil, Corning and Toyota have collaborated to develop an Onboard Separation System (OBS) to optimize gasoline engine efficiency and performance. The novel polymer-ceramic composite monolith membrane has been demonstrated to be stable to E10 gasoline, and typically provides 20% yield of ?100 Background. —Partridge et al.
l/100 km) for a vehicle of that size. l/100 km) for a vehicle of that size. Cost of the new engine relative to gasoline baseline. In 2013, the Cummins-led team demonstrated a Tier 2 Bin 5 version of the engine on the dyno, and then on a vehicle, while development of the Tier 2 Bin 2 engine started. Earlier post.).
liter turbocharged M139 engine featuring an electric exhaust gas turbocharger. The electric exhaust gas turbocharger solves the conventional trade-off between a small, responsive turbocharger yielding a lower total output and a large turbocharger capable of high peak power with less responsiveness. An electric motor around 1.6
Researchers from Tampere University and the University of Eastern Finland have found that the particulate emissions of auxiliary heaters can be up to a thousand times higher than the particulate emissions of idling gasolinevehicles. Their open-access study is published in the journal Atmosphere.
The University of Bath and SAIC Motor UK Technical Centre are collaborating on a project to identify the most efficient conditions for the optimum performance of gasoline particulate filters (GPFs), to help minimize vehicle impact on the environment.
At SAE World Congress next week in Detroit, Delphi Automotive will present two technical papers describing its ongoing progress with the Gasoline Direct-Injection Compression-Ignition (GDCI) engine concept. The undertook a design effort to package practically the two devices and two coolers into a vehicle. Source: Sellnau et al.
By harnessing its low carbon content, bio component and high octane number (RON 100), the new alternative fuel emits up to 3% less in CO 2 exhaust emissions quantified using the new Worldwide Harmonized Light Vehicle Test Procedures (WLTP).
Comparison of brake thermal efficiency and specific fuel consumption at rated power (ICOMIA Mode 5), hydrogen vs. gasoline engines. Such an engine could provide a cost-effective solution for small recreational vehicle- and motorcycle applications. Oh and Plante. Click to enlarge.
For example, a typical medium-sized family car will create around 24 tonnes of CO 2 during its life cycle, while an electric vehicle (EV) will produce around 18 tonnes over its life, the report said. This work dispels the myth that low carbon vehicles simply displace emissions from the exhaust to other sources. Hybrid vehicle.
GMZ Energy, a market leader in the development of high-temperature thermoelectric generation (TEG) solutions, has successfully demonstrated a 1,000W TEG designed for diesel engine exhaust heat recapture in a Bradley Fighting Vehicle. The US Military will soon begin testing GMZ’s 1,000 Watt TEG in a Bradley Fighting Vehicle.
IAV has developed a particularly closed-coupled diesel exhaust gas aftertreatment (EAT) system. A key contribution to this performance must come from the exhaust gas aftertreatment system—across the entire speed and load range. This way, exhaust gas flows through DOC and SCRF before it enters the turbine. Click to enlarge.
Under this same operating condition with stoichiometric engine exhaust (and no reforming), they could only sustain stable combustion with EGR under 25%. D-EGR uses fuel-rich combustion in one cylinder and recirculates its exhaust to the intake system, generating brake thermal efficiency as high as 42.5% —Jim Szybist, ORNL.
Toyota Motor Corporation has developed a new series of fuel-efficient gasoline engines that achieve improved thermal efficiency. Variable valve technology enables adoption of the Atkinson cycle in a conventional vehicle engine. 2014) “New Combustion Concept for Turbocharged Gasoline Direct-Injection Engines,” SAE Int.
The researchers assessed the gaseous, particulate, and genotoxic pollutants from two current technology gasoline direct injection vehicles when tested in their original configuration and with a catalyzed gasoline particulate filter (GPF). Their study is publishedin the ACS journal Environmental Science & Technology. Yang et al.
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.
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 Technologies’ 500+ bar system can help vehicle manufacturers meet both challenges.
Fiat Chrysler Automobiles’ (FCA) Chrysler Brand will launch two plug-in hybrid vehicles (PHEV) over the next several years, said Al Gardner, President and CEO of the Chrysler Brand, during the FCA Investor Day presentations at Auburn Hills, Mi. Much more progress will come as gasoline and diesel engine technologies converge.
The powertrain range for the Estate, which includes diesel, gasoline and hybrid options, features a new 1.6-liter The new Estate’s gasoline and diesel engines with ECO start/stop function comply with the Euro 6 emissions standards. An overhead camshaft actuates two intake and two exhaust valves per cylinder. l/100 km (54.7
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.
Corning Incorporated’s Environmental Technologies business reached a significant production milestone at its Kaiserslautern, Germany manufacturing facility with the production of its 1 millionth Corning DuraTrap GC gasoline particulate filter (GPF) for automotive emissions control.
Volkswagen has developed and deployed a gasoline engine that offers diesel-like fuel economy but is significantly cheaper to buy. Compared with other gasoline engines, the intake valves of the 1.5 Chargers of this kind combined with gasoline engines are usually found only in high-performance cars. l/100 km (49 mpg US).
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. —Norbert Heeb.
As of July 2018, all BMW gasoline and plug-in hybrid models available in Germany will be fitted as standard with a gasoline particulate filter (GPF) and thus will comply with the exhaust standard Euro 6d-TEMP. In addition, another 39 diesel models will be going on the market with Euro 6d-TEMP rating.
The 85 kW / 115 PS gasoline-fired engine is the first of its kind to be combined with a four-way catalytic converter and installed in the up! It also comes with a gasoline particulate filter. With a pressure of 350 bar (high for a gasoline engine), the fuel mixture is injected directly into the combustion chambers.
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
The ORNL team conducted engine experiments with both 91 RON E10 gasoline and liquified petroleum gas (LPG). 1) with cooled exhaust gas recirculation (EGR) and high compression ratio (13.3:1 1 for LPG only) improved engine efficiency by up to 30% compared with a production turbocharged gasoline direct injection spark ignition engine.
A new study by researchers from Washington State University and SLAC National Accelerator Laboratory has found that a catalyst using a single or just a few palladium atoms removed 90% of unburned methane from natural gas engine exhaust at low temperatures. The work is published in the journal Nature Catalysis.
INFINITI’s future models will offer drivers a choice of electrified powertrains as the brand embraces new technology to propel its vehicles. These powertrains will be matched with dedicated platforms and vehicle architectures, delivering high performance, range confidence and reduced environmental impact. Earlier post.)
Audi is adding a new member to its A3 family: the A3 Sportback 30 g-tron natural gas vehicle. Its turbocharger with variable turbine geometry makes optimal use of the exhaust gas energy for early and harmonious torque development. Sales in Germany and other European countries begin in fall 2020 at a base price of €30,705.88.
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. All vehicles were measured with air-conditioning on. — lead researcher Dr. Chis Frey.
Data available of dibenzopyrenes in other urban emission sources are diesel and gasoline particulate emissions. The reported concentrations vary, however, depending on vehicle and driving conditions. Non-exhaust traffic sources of particles. 85% of traffic-generated PM 10 has been attributed to non-exhaust sources, they said.
Secondary air systems are used to reduce gasoline engine emissions by accelerating catalytic converter heat-up. The latter allows secondary air injection across a much wider engine map range and hence, at any given point in time, the precise air mass required for accelerating converter heat-up is injected into the exhaust system.
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.
liter EcoBoost gasoline turbocharged direct injection (GTDI) four-cylinder unit. Featuring a twin-scroll turbocharger and a three-port integrated exhaust manifold (IEM), the 2.3-liter Two pivotal factors are the three-port integrated exhaust manifold cylinder head and a twin-scroll turbocharger. —Pete Pandolfi, 2.3-liter
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.,
the criteria pollutants and CO 2 that emerge with the exhaust from the tailpipe. However, there is more than 15 years of research showing that the contribution of non-exhaust primary particles to the total traffic generated primary particles is significant in urban areas. Further, a 2013 review by Denier van der Gon et al. Background.
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.
Since 2018, Volkswagen has used only SCR exhaust gas treatment systems with its diesel engines. SCR (selective catalytic reduction) technology significantly reduces nitrogen oxides in the exhaust gas. The twin dosing process requires a second SCR catalytic converter which is located in the underbody of the vehicle.
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