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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 ). As a result, distance-specific mass and number emissions can be derived, which can then be compared to equivalent tire metrics.
Thirty-seven globally prominent scientists representing the International Journal of Engine Research have published an open-access editorial addressing the future of the Internal Combustion Engine, and stressing the importance for continued development of more efficient and even lower-emitting technologies. Gas exchange.
Jaguar has unveiled the C-X75 concept, an extended range electric vehicle that uses twin gas micro-turbines from Bladon Jets to power two switched reluctance generators from SR Drives. The driver and passenger are seated ahead of a sealed airbox that houses the micro gas-turbines. Click to enlarge. Earlier post.) C-X75 powertrain.
GTI1 has been named International Engine of the Year 2018 in its category. Exhaustgas after-treatment paired with innovative features inside the engine enables the GTI engine to meet the new EU 6AG (Euro 6d-TEMP) emission standard. Volkswagen’s 1.0 TSI in the new up! It also comes with a gasoline particulate filter.
With SCR twin dosing technology in the exhaustgas system, the diesel unit now undercuts the Euro 6d emission standard limits while also running quietly and smoothly, according to the company. The four-cylinder TDI engine with the internal designation EA 288 made its debut in 2012. As previously, the 2.0 This has a volume of 3.4
Relative (percent) CO 2 emissions benefit of the new natural gas variant as compared to the 220 kW diesel engine. Among its trucks on display at the upcoming IAA in Hanover, Mercedes-Benz will showcase an Econic equipped with its new Euro VI medium-duty natural gas engine (M 936NGT), which is derived from the 7.7-liter Benz et al.
An electrically driven compressor for precise exhaustgas recirculation is also used. Then we modify the timing and pressure of the injection, among other things, and look at exhaust emission values and fuel consumption. This is done via exhaustgas recirculation (EGR). —Patrik Soltic.
As part of the Horizon 2020 research project CARES (City Air Remote Emission Sensing), an international research consortium is working on new contactless exhaust measurement methods that will enable municipalities to take emission-reducing measures. The technology is already being used successfully for gas measurements.
The levels of these non-fuel-derived gases will likely remain unchanged, even as more drivers transition from gas-powered to electric vehicles. Cars’ average carbon dioxide emissions have dropped by 25% since the early 2000s, according to the US Environmental Protection Agency (EPA), but this gas only accounts for part of the total.
liter TSI gasoline version, but integrates components that allow it to run on compressed natural gas. Internally, the 1.0-liter Internally, the 1.0-liter F), and then starts a heating process for the gas injectors, prior to the automatic activation of the CNG circuit when conditions allow.
Motiv Engines, LLC introduced the second-generation of its engine concept dubbed the MkII Clarke-Brayton Engine, which it intends to develop into a heavy-duty on-highway engine fueled by liquid natural gas (LNG). It expands all the way to ambient pressure before the exhaust stroke. All valves are actuated by overhead cams.
New research from Chalmers University of Technology, Sweden, finds that the discharge water from ships’ exhaustgas treatment systems—i.e., A scrubber is used on ships to clean exhaust gases, primarily to reduce emissions of sulfur oxides to the atmosphere. —Erik Ytreberg.
Their paper was presented at the ASME Internal Combustion Engine Division 2012 Fall Technical Conference by Marcello Canova, assistant professor at OSU; lead author was Philipp Skarke, from the University of Stuttgart Institute for Internal Combustion Engines and Automotive Engineering. Exhaustgas exergy map of EcoCAR engine.
It applies high-reliability fuel injection system technology, electric-driven closed recirculation technology and advanced exhaustgas recirculation technology to prevent the occurrence of problems such as difficult ignition and unstable combustion in ammonia-fueled internal combustion engines.
The global market for sensors used in internal combustion engines (ICE) is on the road of steady growth for the next few years, propelled by increasing utilization in engine management and exhaust aftertreatment, according to a new report from IHS Technology. IHS projects that sensor shipments for ICEs will top 1.34 billion in 2013.
Consumption measurements of the dual-fuel natural gas-diesel engine as a function of speed and load. Researchers at ETH Zürich have developed a light-duty hybrid electric vehicle featuring a dual-fuel natural gas-diesel engine. Source: Ott et al. Click to enlarge. The dual-fuel engine can also serve in a non-hybrid application.
The researchers started the study, reported in the International Journal of Engine Research , to investigate the potential influence this effect could have on the emissions levels. This is likely a result of a changing combination of exhaustgas recirculation and fuel distribution such that less cylinder-to-cylinder variation is present (e.g.
A paper on their study is published in the International Journal of Engine Research. Reactivity-controlled compression ignition combustion phasing (CA50—crank angle when 50% of fuel is burned) is most sensitive to variations in diesel fuel mass, level of exhaustgas recirculation, and charge gas temperature.
The catalyst removes the gaseous pollutants and now also solids such as particulates from the exhaustgas flow. The well-known three-way conversion catalyst—in use in North America since 1976 and in Europe since 1986—is now capable of removing considerably more than 95% of the undesired substances from the exhaustgas flow.
Toyota introduced the next-generation three-row 2020 Highlander SUV at the New York International Auto Show. The gas engine employs Variable Valve Timing-intelligent system by Electric motor (VVT-iE) on the intake camshaft, and VVT-i on the exhaust camshaft.
At the 2 nd International Conference Automotive 48 V Power Supply Systems , held last week in Düsseldorf, Germany, Controlled Power Technologies (CPT), a major sponsor of the event, together with leading car makers and Tier 1 suppliers, argued the need for an internationally agreed 48V electrical standard. Click to enlarge. The conference.
The results of a new analysis by the International Council on Clean Transportation (ICCT) show that, when combined with a trend toward higher methane leakage and combustion slip, there is no climate benefit from using liquefied natural gas (LNG) as a marine fuel—regardless of the engine technology. Credit: The ICCT.
Schlumberger has entered into an agreement with RTI International , a nonprofit research institute, to accelerate the industrialization and scale-up of its proprietary non-aqueous solvent (NAS) technology, which enhances the efficiency of absorption-based carbon capture. Marty Lail, senior director of RTI’s Decarbonization Sciences program.
Southwest Research Institute has expanded its capability to evaluate internal combustion engine aftertreatment catalysts, integrating an existing SwRI technology with a mass spectrometer. The mass spectrometer can detect a broader range of exhaust components, allowing a more complete picture of aftertreatment system performance.
Five technology paths for very-low-NO x and GHG emissions from heavy-duty natural gas engines. The “Pathways to Near-Zero-Emission Natural Gas Heavy Duty Vehicles” report, authored by GNA on behalf of Southern California Gas Co. —“Pathways to Near-Zero-Emission Natural Gas Heavy-Duty Vehicles”. Click to enlarge.
A paper on their work is published in the International Journal of Engine Research. The ORNL team conducted engine experiments with both 91 RON E10 gasoline and liquified petroleum gas (LPG). 1) with cooled exhaustgas recirculation (EGR) and high compression ratio (13.3:1 1 for both fuels, with additional runs at 16.8:1
Volkswagen’s view of powertrain technologies to minimize greenhouse gas emissions. At the International Vienna Motor Symposium Prof. These would range from highly efficient internal combustion engines and natural gas systems all the way to hybrids and electric vehicles. Source: Prof. Click to enlarge. Earlier post.).
The selected projects will focus on reducing the total cost of ownership of NGVs, increasing vehicle efficiency, decreasing local air pollution, and advancing technology development to increase the use of more affordable medium- and heavy-duty natural gas engines and vehicles. Cummins Inc. CNG Full Fills with a Complete Smart Fueling System.
However, practical challenges still exist when applying ammonia in traditional internal combustion engines (ICEs) due to its high ignition energy, slow flame propagation and significant NO x emissions. Ammonia is a promising carbon–neutral fuel, able to power heavy-duty vehicles, non-road machineries and ocean ships with zero CO 2 emission.
The partnership with AVL has already resulted in bringing to production the TECO Future Funnel, a complete exhaustgas cleaning system. IMO, the International Maritime Organization, targets carbon emission cuts of 40% by 2030 and 70% by 2050, compared to 2008 values. The plan is to start fuel cell production in 2022.
FEV is developing a water injection system for internal combustion engines using condensate from exhaust gases, the “Extended Direct Condensate Injection” system. The concept, as reported in a new paper in the International Journal of Engine Research , demonstrates a potential for efficiency increase of 3.3% – 3.8%
These agencies, in concert with other national and international regulators, seek to significantly reduce greenhouse gas (GHG) emissions and harmful air pollutants produced primarily by heavy-duty trucks, vans and buses. Environmental Protection Agency (EPA) and European Commission (EC) are slated for adoption in coming years.
FLECCS project teams will work to develop carbon capture and storage (CCS) processes that better enable technologies, such as natural gas power generators, to be responsive to grid conditions in a high variable renewable energy (VRE) penetration environment. RTI International. 8 Rivers Capital.
TDI diesel engine at the 35 th International Vienna Motor Symposium. The exhaust-turbocharged V6 will come in two versions: 160 kW (218 hp) and 200 kW (272 hp). Integration of the new exhaust aftertreatment unit. Among the elements of interest in the new engine is the close-coupled exhaustgas aftertreatment system.
Mercedes-AMG is launching with the internally named HPB80 variant with 6.1 Individual drive mode: individual customization of the drive, transmission, AMG DYNAMICS, chassis, steering and exhaust system. four-cylinder engine and electric exhaust-gas turbocharger. It ensures the highest level of safety. kW/kg (1.0
applied partially premixed combustion mode to a direct-injection natural gas engine based on a 3D model coupled with a dual-fuel chemical kinetic mechanism (n-heptane/natural gas). It is widely accepted that internal combustion engines are one of the most predominant contributors to atmospheric pollution.
1 and internal EGR.) To meet both performance and fuel consumption requirements, a 4-2-1 pipe exhaust manifold has been designed to reduce residual exhaustgas in combustion. The combination of these (with the modified exhaust manifold producing the bulk of the recovery), brought torque up to 105 N·m.
GE Transportation’s marine engine technology eliminates the need for a Selective Catalytic Reduction system (SCR) exhaustgas after-treatment and storing or using urea aboard a vessel, thereby preserving precious cargo and tank space.
A life-cycle assessment of emissions from domestic and imported liquefied natural gas (LNG), and heavy-fuel oil (HFO) for marine shipping by a team from the University of British Columbia has found that only high-pressure dual-fuel (HPDF) engines robustly reduce well-to-wake GHG emissions by 10% compared with their HFO-fueled counterparts.
By 2030, the Rolls-Royce business unit is to cut greenhouse gas emissions by 35% compared to its 2019 level through the use of new net zero and zero carbon technologies. Or it relates to fuels such as hydrogen, that would not at all emit CO 2 at the exhaust pipe. This is not yet relevant for Rolls-Royce applications.
Westport’s HPDI fuel system technology enables heavy-duty trucks to operate on natural gas with the same power, torque, efficiency, and performance as diesel engines. Scania’s engine fulfils the strictest exhaust emission requirements with low fuel consumption and high torque. Hydrogen use in an internal combustion engine with the H?
Southwest Research Institute (SwRI) announced preliminary test results of its Dedicated-ExhaustGas Recirculation (D-EGR) demonstration vehicle ( earlier post ) at the SAE 2014 World Congress in Detroit. With D-EGR, one or more cylinders have their exhaust connected directly to the intake system. Click to enlarge.
The new TwinAir family engine combines the concept of downsizing (displacement and weight reduction) with technologies including supercharging with high-efficiency turbocharger; integration of the exhaust manifold in the cylinder head; and the new MultiAir intake valve control system. The engine is also equipped with a stop-start system.
engine exhaustgas aftertreatment technology. A paper on their work is published in Angewandte Chemie International Edition. The Haber-Bosch process operated with natural gas results in ca. assisted nitrogen oxidation and lean NOx trap technology, adopted from diesel?engine PNOCRA achieves an energy requirement of 4.6?MJ?mol
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