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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.
compressed natural gas). A rechargeable energy storage system (RESS) that is recharged by the on-board hybrid propulsion system, an external electric energy source, or both. There are two basic exhaust emissions and fuel economy tests described in J1711. Earlier post.) gasoline and Diesel fuel), alcohol-based liquid fuels (e.g.,
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.
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.
(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.,
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.
Our test shows that as well as electric driving on renewable electricity, there are other concepts that permit long-distance, low-emission driving. Fuel specifications are not publicly available yet, nor are emissions results and comparisons. —Reiner Mangold, Head of Sustainable Product Development at Audi.
For the new, high-performance generation of diesels, KSPG is exhibiting components for the exhaustgas system, steel pistons, and ultramodern high-duty plain bearings. Comparison: aluminum and steel pistons revving up at low load and cold engine, structure-borne amplitudes and frequencies in the Campbell diagram. Range extender.
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. Compressor. Fuel cells are also sensitive to oil admixtures.
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 The new engine is equipped with a turbocharger featuring variable geometry turbine vanes (VGT), which are activated electrically.
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).
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.
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.
million from the Department of Energy’s ARPA-E program ( earlier post ) to complete its prototype development of a new gasoline-fueled wave disc engine and electricity generator that promises to be five times more efficient than traditional auto engines in electricity production, 20% lighter, and 30% cheaper to manufacture.
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.
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.
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.
Hydrogen operation with the current WFS HPDI fuel system outperforms natural gas in terms of thermal efficiency, mainly due to lower equivalence ratio for H 2 at given fueling energy level, higher kinetic energy for H 2 jets as well as higher tolerance of H 2 combustion to fuel rich operation.
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.
The system comprises single-shaft propulsion propellers driven by low-speed marine diesel engine and electric-drive azimuth propulsion propellers that enable the direction of propulsion power to be changed freely. The ship is also equipped with a system that utilizes exhaustgas thermal energy more efficiently.
Toyota is further improving the fuel efficiency of the engine by utilizing its other innovations including the new shaped intake strong tumble flow and a cooled exhaustgas recirculation (EGR) system paired with Variable Valve Timing-intelligent Electric (VVT-iE) technology to improve combustion and reduce loss. liter engine.
The TUM team investigated the behavior of OMEs in engines, the adjustments required to improve combustion efficiency and the degree to which harmful emissions can be reduced in comparison to fossil fuels. We are also convinced that high-performance exhaust after-treatment can even reduce emissions to almost zero.
In comparison with established hybrid technologies it is more cost-efficient, more compact, and lighter, MAHLE says. The performance of the electric powertrain used in MMHP reduces the requirements for the combustion engine, enabling the development of a cost-optimized “Dedicated Hybrid Engine (DHE).”
However, the challenges of transmission, distribution, and high-pressure storage of a low-density gas have hampered the adoption of hydrogen PEMFC technology. The present work provides that unified analysis, finding that ammonia delivers the lowest source-to-tank cost among carbon-neutral fuels produced from renewable electricity.
It features a high-expansion ratio Atkinson cycle, Variable Valve Timing-intelligent (VVT-i) system, Electric Throttle Control System-intelligent (ETCS-i) and ExhaustGas Recirculation (EGR) system employing a newly designed, highly efficient EGR cooler from Denso ( earlier post ). EPA label calculations do not include ECO Mode.
Among the engine’s potential applications are power washers, electric generators, lawn equipment, welders, marine propulsion and possibly some hybrid vehicles. The K6 engine uses six strokes instead of four to reduce the pressure of exhaust gases, which allows it to harvest more energy rather than expelling it with the gas.
Comparison of O 3. In comparison to other iron oxide materials, it has a particularly high proportion of unsaturated and thus reactive iron centers on its surface. A number of electrical devices, such as photocopiers and laser printers, also release this unhealthy gas. removal % of materials at room temperature.
The Ricardo CryoPower split-cycle engine concept redefines the processes of internal combustion to enable significantly improved internal thermal efficiency in comparison with today’s state-of-the-art engines. CryoPower is based on the use of a separate induction and compression cylinder from that used for combustion and exhaust.
The diesel-electric full-hybrid vehicle, weighing just 380 kilograms (838 lbs), offers an initial glimpse at how a future production version might appear. The L1 also has a Stop-Start system, which automatically shuts off the drive unit when the vehicle is at a stop and restarts it when the gas or E-pedal is pressed. Click to enlarge.
Improvements to the welding methods helped to reduce the electrical resistance. Calendar life comparison. To ensure the safety of the vehicle cabin if an abnormal situation arises, the pack is designed so that the cooling draft and gasexhaust grooves are entirely separate. Click to enlarge.
l/100 km / 34 mpg US; combined CO 2 emissions, weighted: 156 g/km; combined electric energy consumption, weighted: 11.7 A two-speed electric motor positioned on the rear axle supports the 2.0-liter The electric powertrain and the high-performance battery with 400 volts are AMG-exclusive, in-house developments. a P3 hybrid.
Although Chevy emphasizes the benefits of the 2500HD with the bi-fuel option as a full dual fuel vehicle with a combined range of up to some 650 miles, in more than 500 miles of driving over the course of a week, we used mainly only natural gas. The only reason we used gasoline was for comparison; it wasn’t necessary. Click to enlarge.
TFSI gasoline engine with an electric biturbo ( earlier post ) that delivers 441 kW (591 hp) and 650 N·m (479.4 By comparison: The new Ford Shelby GT 350 will feature a naturally aspirated 5.2L Turbochargers are typically driven by energy from the exhaust—i.e., lb-ft), with acceleration from 0 to 100 km/h (62.1
MFCs are an attractive candidate for treating the soluble (liquid) portion of stillage because they operate optimally at diffused wastewater ranges, thus precluding the need for costly dewatering or concentration steps, and produce small amounts of electricity, thus creating an energy-efficient combined process.
Of the energy output of fuel in a car engine, 33% is spent in exhaust, 29% in cooling and 38% in mechanical energy, of which friction losses account for 33% and air resistance for 5%. By comparison, an electric car has only half the friction loss of that of a car with a conventional internal combustion engine.
The selected projects focus on advancing the development of a suite of post-combustion CO 2 capture and supersonic compression systems for new and existing coal-based electric generating plants, specifically: (1) supersonic compression systems; (2) small pilot-scale (from 0.5 FuelCell Energy Inc. Source: FuelCell Energy.
On 15 Sep, NHTSA and the US EPA proposed a joint rulemaking on fuel economy and greenhouse gas emissions for light duty vehicles: an average new car 34.1 Cylinder deactivation: deactivates the intake and exhaust valves and prevents fuel injection into some cylinders during light-load operation. Click to enlarge.
In comparison with the straight-six featuring Twin Turbo technology and High Precision Injection already featured in several model series, the engine at the same time offers a further reduction of fuel consumption by up to 9%. Adjustment of turbine geometry is activated as a function of load conditions, via an electrical adjuster motor.
kWh Li-ion pack enabling an electric range of up to 15 miles (24 km) at speeds of up to 62 mph (100 km/h), according to Toyota. Maximum electric range is 15 miles. With lower exhaust heat, heat efficiency was enhanced, and consequently, fuel efficiency was enhanced as well. L/100km equivalent and 4.8 L/100km, respectively.
Data comparison with corresponding predecessor diesel model: ML 250 BlueTEC 4MATIC ML 300 CDI BlueEFFICIENCY 4MATIC (predecessor model) ML 350 BlueTEC 4MATIC ML 350 CDI 4MATIC (predecessor model). In the ML 250 BlueTEC 4MATIC, the 3.0-liter liter V6 of the previous ML 300 CDI BlueEFFICIENCY 4MATIC model is replaced by the 2.2-liter
There will be world premieres for new advanced technologies, such as the Integrated Starter-Alternator (ISG); the 48 V electrical system; and the electric auxiliary compressor (eZV). The new six-cylinder in-line gasoline engine M 256 features a 48 V electrical system. The result is a dynamic engine response with no turbo lag.
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