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“Blue” hydrogen—produced through steam methane reforming (SMR) of natural gas or coal gasification, but with CO 2 capture and storage—is being described as having low or zero carbon emissions. For our default assumptions (3.5% Even if true though, the use of blue hydrogen appears difficult to justify on climate grounds.
Iveco has begun deliveries of the first units of Stralis Natural Power Euro VI, the new heavy-duty range of natural gas-powered vehicles. Iveco offers a complete range of light-, medium- and heavy-duty commercial vehicles as well as buses powered by natural gas.
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.
with technologies such as direct fuel injection, variable valve timing, exhaust-driven turbochargers, brake energy regeneration and Auto Start Stop function—about 60% of the generated energy is still lost, half of it being exhaust heat, with the remaining half as heat absorbed by the engine cooling system. Click to enlarge.
Certification in accordance with the Euro 6d standard (RDE stage 2) not prescribed for new models until 1 January 2020 is possible due to measures including extended exhaustgas aftertreatment with an additional underbody SCR catalytic converter including ammonia slip catalyst (ASC) in the underbody.
New research from Chalmers University of Technology, Sweden, finds that the discharge water from ships’ exhaustgas treatment systems—i.e., Comparison of loads (kg/year) of PAHs from direct discharges from ships and atmospheric deposition to the Baltic Sea.
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. As a comparison point, in 1976, the first Golf GTI delivered 140 N·m at 5,000 rpm.) It also comes with a gasoline particulate filter. The 85 kW / 115 PS 1.0
(MHI) has achieved a turbine inlet temperature of 1,600 °C—which it calls the world’s highest—with the company’s advanced J-Series gas turbine. The gas turbine that marked the achievement is the 60 hertz (Hz) M501J, which MHI developed in the spring of 2009. 2 Power Station of Kansai Electric Power Co.,
Panasonic Corporation and Tokyo Gas Co., The new units will be sold by Tokyo Gas from 1 April 2014. A pipe shaft is a space to store water and gas pipes that runs vertically through condominium floors. In comparison to detached houses, condominiums have more restrictions on the conditions for installations. Launch date.
Empa researchers Norbert Heeb and Maria Munoz discovered large quantities of benzo(a)pyrene (red bar)—a combustion product responsible for cutting short the lives of cigarette smokers—in the exhaustgas emitted by GDI engines. Levels in exhaust emissions were found to be as much as 1,700 times above this limit.
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 Comparison of the derived brake thermal efficiency of the ORNL research engine (LSE) running LPG to 2019 production Cummins ISB diesel.
compressed natural gas). There are two basic exhaust emissions and fuel economy tests described in J1711. Single-roll, electric dynamometer test procedures are specified to minimize the test-to-test variations inherent in track testing and to conform with standard industry practice for exhaust emissions and fuel economy measurements.
The recuperated engine uses isothermal compression via cryogenic injection to enable significant exhaust to compressed gas heat transfer. Recuperator to transfer heat from exhaustgas to compressed air. The charge air was heated to 750 °C by the low pressure exhaust gases in the recuperator. Click to enlarge.
bp has successfully loaded the first LNG cargo from Mozambique’s offshore Coral Sul FLNG (floating liquefied natural gas) facility, the country’s first LNG project and first floating LNG facility deployed in the ultra-deep waters of the African continent. FLNG vessels are floating LNG production, storage and offloading units.
A gas exchange system upgrade for DMUs. This would include a new turbocharger and corresponding exhaust manifold modifications, and a new air filter to reduce inlet pressure loss. Potential fuel economy benefit over baseline is 3% for both intercity and local duty cycles.
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. Exhaustgas temperatures were highest for diesel #2, followed by soybean, microalgae, yeast, and bacteria (in order of decreasing temperatures).
As a comparison, the baseline 2015 Sonata with 2.4-liter million), uses an exhaust manifold integrated turbocharger with twin scroll, air-guided intercooler, direct fuel injection system and dual CVVT, while a bed plate and a serpentine auxiliary belt were adopted to enhance engine reliability. The estimated 32 mpg (7.4 The Gamma 1.6-liter
CAT-DEF—Catalyzed Diesel Exhaust Fluid—is an SwRI-developed catalyst- and surfactant-modified diesel exhaust fluid (DEF) solution. urea-water solution—is injected into the exhaust stream and ideally decomposes to form ammonia, which reacts with NO x on the SCR catalyst to form N 2 and H 2 O. DEF—a 32.5
In comparison to hydrogen, liquefied ammonia makes it easier to transport large volumes to wherever it is needed. Kolb As part of the Spaltgas project , researchers at Fraunhofer IMM and their project partners are developing a combustion technology for this gas mixture that will be used in the brick firing process.
On the other hand, however, the lower exhaustgas temperatures result in a lack of energy for their propulsion on the exhaust side. Comparison of turbocharging systems. For clean combustion of hydrogen, the turbochargers have to, on the one hand, provide around twice as much air mass as they do in gasoline engines.
A study by a team from UC Riverside has assessed the potential of increasing ethanol content in California reformulated gasoline (CaRFG) by investigating the exhaust emissions from a fleet of 20 Tier 3 light-duty vehicles. A baseline CaRFG E10 (10% ethanol by volume) fuel was splash-blended with denatured ethanol to create an E15 fuel.
A recent report from CE Delft, an independent research and consultancy organization, regarding the climate impact of ExhaustGas Cleaning (EGC) systems for the marine industry. The study compares the results to the use of low-sulfur marine fuels and is made from a well-to-wake perspective in order to achieve an accurate comparison.
In the Tianjin study, the team explored the impact of exhaustgas recirculation (EGR) rates from 0% to 15% and compression ratios (CRs) of 8, 9, and 10 on the combustion characteristics and emission performance of 2-methylfuran (MF) and gasoline. —Pan et al. 2014.04.054.
Promising avenues include weight savings and extension of the cruising range in comparison with battery-powered solutions; fuel cell concepts may represent an attractive option for long-distance hauling, which requires heavy loads and large cruising ranges. Exhaust pathway. Humidifier. Vehicle acoustics also affect air management.
Comparison of brake thermal efficiency and specific fuel consumption at rated power (ICOMIA Mode 5), hydrogen vs. gasoline engines. This is due to raw, externally premixed fresh charge comprising air, fuel and lube oil being short-circuited into the exhaust during the scavenging process. Oh and Plante. Click to enlarge.
During each of up to 3,000 revolutions per minute in the research engine, a minute amount of fuel shoots into the glass cylinder, is compressed and ignited, and the exhaustgas then expelled. Fuel specifications are not publicly available yet, nor are emissions results and comparisons.
Comparison of Sonata 2.0T Twin-scroll turbocharger designs have two exhaustgas inlets divided by split walls inside the turbine housing, with both gas passages controlled by a waste-gate. A twin-scroll turbo recovers even more energy from the exhaust than a single-scroll turbocharger thanks to a divided manifold.
WLTP measurements converted to NEDC values for comparison purposes.) In comparison to its predecessor, the 88 kW/120 hp 1.6-liter In comparison to its predecessor, the 88 kW/120 hp 1.6-liter l/100 km, extra-urban 3.9-3.8 l/100 km, combined 4.2-4.1 l/100 km, 110-108 g/km CO 2 ). Maximum torque is 300 N·m at 1750 rpm.
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. However, European legislators have also become tougher on this gas in recent years.
liter, four-cylinder engine of the new CLA 250 is a member of the BlueDIRECT family of gasoline engines, and was first applied in combination with exhaust-gas turbocharging and external high-pressure exhaustgas recirculation in the E 250 Coupé introduced last year ( earlier post ). (It Source: Vent et al.
This newly developed ENSs could improve low-temperature automobile exhaust treatment. Meanwhile, hydrocarbons, such as propylene (C 3 H 6 ) and propane (C 3 H 8 ) are typical automobile exhaustgas pollutants and must be converted to carbon dioxide (CO 2 ) and water (H 2 O) before they are released as exhaust.
During his presentation at the TDI Efficiency Rally, UMTRI researcher Bruce Belzowski first presented a summary of his analysis of the total cost of ownership of diesels with a comparison to that of their gas vehicle counterparts. Changes in the exhaust manifolds and turbo from Gen 1 to Gen 2. Earlier post.). lbs (4 kg).
million US Department of Energy (DOE) grant to demonstrate a pre-production Renewable Natural Gas (RNG) hybrid 4,300 hp line-haul locomotive. In several weeks, OptiFuel will start taking orders, in 49 of the US states, for a new line of affordable 800 hp to 3,200 hp, 100% natural gas freight and transit locomotives. g/bhp-hr of PM.
Comparisons of type C buses have typically been centered on fuel economy. to conduct a head-to-head fluid economy comparison. In the comparison of fluid economy, the 2010 IC Bus CE Series with MaxxForce 7 consistently outperformed the competing buses with up to a 4.5% fluid economy advantage using TMC Type IV testing methods.
In comparison to the predecessor, the new OM 654 diesel engine range reduces emissions and fuel consumption while also optimizing noise and vibration comfort. With the near-engine, insulated position of the components, the exhaust-gas aftertreatment system enjoys low heat loss and advantageous working conditions.
Comparison of emission standards. The first V8 engine on this platform (730 hp, 3500 N·m) was launched in 2010, also equipped with Scania XPI and VGT, but with SCR exhaust aftertreatment like the other Euro 5 V8 engines. A novel solution with sensors in the silencer enables precise control of exhaust temperature and NO x levels.
The report finds that the greenhouse gas emissions of electric vehicles, with the current EU energy mix and over the entire vehicle life cycle, are about 17-30% lower than the emissions of gasoline and diesel cars. For local air quality, electric vehicles also offer clear benefits, mainly due to zero exhaust emissions at street level.
These vehicles include pure zero emission vehicles (100% battery electric and hydrogen fuel cell); liquefied petroleum gas (LPG) and compressed natural gas (CNG) fueled vehicles; or MY2004 or older vehicles that meet the California ultra-low emission vehicle (ULEV) standard for exhaust emissions and the federal ILEV standard.
By way of comparison: a conventional turbo system diverts part of the exhaustgas stream needed for the forced induction away from the turbine via a wastegate valve as a function of its operating state. Volkswagen now becomes the first manufacturer to use a VTG charger in a mainstream gasoline engine car.
Data was collected with the stock ignition system with a representative ignition strategy, followed by comparison to a drop-in replacement with the TPS nanosecond pulsed power ignition system (coil and plug). The Toyota 2.5L engine was tested at FEV North America and results indicate improvements over the stock ignition system.
As a comparison, in 2007, the first-generation Golf BlueMotion (Volkswagen’s most fuel-efficient version) was regarded as having sensational gas mileage at 52 mpg—4 mpg worse than the new GTD, which has 79 more horsepower and is 25 mph faster. By comparison, the earlier A6 Golf GTD posted 8.1 Variable valve timing.
They found that the level of emissions of regulated and unregulated pollutants in diesel exhaust depends on fuel, load, engine calibration, and exhaust aftertreatment technology. Information pertaining to these emissions in diesel engine exhaust is much less complete than that for the regulated pollutants.
The WDG also can reduce carbon dioxide emissions by as much as 95 percent in comparison to modern internal combustion vehicle engines. The earlier MSU investigations of wave rotor and radial wave rotor technology were exploring gas turbine applications in addition to supercharging or refrigeration. Norbert Müller. The Wave Disc Engine.
Comparison measurements have demonstrated that the Duonic dual-clutch transmission operates as economically as the manual Canter transmission. Exhaustgas aftertreatment. : As in the previous Canter, there are two exhaustgas aftertreatment systems. The drive unit with a displacement of 3.0
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