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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.
At the 17 th Supercharging conference this week in Dresden, Controlled Power Technologies (CPT) will launch what it says is the first water-cooled electric supercharger developed for “quasi-continuous” boosting of commercial diesel engines, including those developed for off highway applications. Cobra electric supercharger. Click to enlarge.
A well-known automaker has placed an order with Rheinmetall Group subsidiary Pierburg for exhaustgas recirculation (EGR) modules, with a lifetime value of around €300 million. In the low-pressure loop, these are water-cooled poppet valves. The order encompasses low- and high-pressure EGR modules.
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.
liter diesel, prominently showing the closely attached exhaust aftertreatment system. The MQB allows the integration of alternatives, for example, natural gas, hybrid and electric drives, in addition to the conventional gasoline and diesel power units. The cylinder head intake and exhaust valves are arranged one behind the other.
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). Water is formed as a by-product.
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. Volkswagen developed twin dosing technology for the exhaustgas treatment. Volkswagen 2.0 TDI diesel for Euro 6d; SCR twin-dosing.
Continental has acquired 100% ownership of the exhaust technologies specialist Emitec. Continental already has a comprehensive product portfolio in the field of exhaust-gas aftertreatment and works closely with Emitec. Markus Distelhoff, Head of the new reformed Fuel & Exhaust Management Business Unit.
Unlike exhaust from burning coal and gas that contains CO 2 , burning hydrogen emits only water vapor and oxygen. Hydrogen is not a greenhouse gas, but its chemical reactions in the atmosphere affect greenhouse gases such as methane, ozone, and stratospheric water vapor. Sand et al.
a Sumitomo Corporation Group company, jointly demonstrated a new waste heat recovery system based on a thermoelectric generator (TEG), which generates electrical power via exhaustgas heat. The TEG unit was installed in the exhaust pipe at the downstream of the catalyst. An additional test achieved the target gas temperature.
FEV is developing a water injection system for internal combustion engines using condensate from exhaust gases, the “Extended Direct Condensate Injection” system. in the region of the minimum specific fuel consumption on a stoichiometric combustion concept with Miller cycle and cooled external exhaustgas recirculation.
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. Ytreberg et al.
Audi is adding a new member to its A3 family: the A3 Sportback 30 g-tron natural gas vehicle. Operation with natural gas or biomethane makes the compact model economical and more climate-friendly with low emissions. With full gas tanks, the car has an NEDC range of up to 495 (307.6 The A3 Sportback 30 g-tron 1.5
Alfa Laval offers a range of oil-fired and oil and exhaustgas-fired boilers for ships. Straight tubes connect the water and steam drums directly, which ensures safe circulation with no risk of overheating and subsequent tube burnout.
Toyota’s FPEG features a hollow step-shaped piston, combustion chamber and gas spring chamber. The FPEG consists of a two-stroke combustion chamber, a linear generator and a gas spring chamber. The smaller-diameter side of the piston constitutes a combustion chamber, and the larger-diameter side constitutes a gas spring chamber.
In its recently released Inventory of US Greenhouse Gas Emissions and Sinks: 1990 – 2011 ( earlier post ), the US Environmental Protection Agency (EPA) reported that methane (CH 4 ) emissions from the field production of natural gas have declined by 36% from 2007 to 2011 (from 83.1 a global warming potential of 21. (The
natural gas vehicle. natural gas vehicle, previewed in a concept form in 2011 ( earlier post ) and revealed in its production version at the Geneva auto show in March this year, in Europe. The natural gas version produces its 50 kW output at 6,200 rpm and reaches its maximum torque of 90 N·m (66 lb-ft) at 3,000 rpm.
has several new parts, including a new water-cooled variable-geometry turbocharger; a new high-pressure common-rail fuel delivery system; a new ExhaustGas Recirculation (EGR) system; a new intake manifold; a new cylinder head; a new cylinder block; a new balancer shaft unit; and a new Engine Control Module (ECM). Turbo (2.8L).
Since 2018, Volkswagen has used only SCR exhaustgas treatment systems with its diesel engines. SCR (selective catalytic reduction) technology significantly reduces nitrogen oxides in the exhaustgas. Volkswagen has now developed the next evolutionary stage of its SCR system: “twin dosing”.
The M-Series units are methanol reformers that use water plus methanol to make hydrogen. The units uses two input streams (methanol/water mix and combustion air) and produces two output streams (product H 2 and combustion exhaust). Source: e1.
Shipping has been one of the fastest-growing sources of greenhouse gas emissions for many years now due to the sharp rise in the trade volume. The methanol is mixed with water, then evaporated by applying heat and fed into the preheated reactor, where the mix of methanol and water is converted into hydrogen and CO 2.
Southern California Gas Co. The program allows qualified fleet owners the opportunity to try out the latest in heavy-duty natural gas truck technology by test-driving a 12L near-zero truck. Additionally, fleet owners will see the advantages natural gas trucks have over diesel, including lower fuel costs. g/bhp-hr) since 2001.
liter EcoBoost is the first engine from Ford to incorporate a computer-controlled clutch on the belt-drive water pump, which further improves efficiencies by reducing warm-up time. A water-cooled charge air cooler is added to offer a more efficient feed of air into the engine. liter EcoBoost such as an integrated exhaust manifold.
Key advances for Gen 3 are in weight reduction, friction reduction, and the internal exhaust cooling system. Like its predecessor, the engine has a cast-iron cylinder block and an aluminum-alloy cylinder head which now has the exhaust headers cast integrally. Integrated exhaust manifold with cooling. Click to enlarge.
Rolls-Royce and Canadian vessel designers Robert Allan have developed the world’s first shallow-water push boat powered by LNG natural gas engines. LNG (liquefied natural gas) is gaining traction in maritime circles, enabling operators to reduce emissions that are harmful to the environment and to the climate.
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. After flowing through the turbocharger, the exhaustgas is fed directly into the particulate filter. It also comes with a gasoline particulate filter. TSI in the up!
These include exhaustgas waste heat, which accounts for 50% of the energy from combusted fuel, but also liquid sources at lower temperatures, such as engine jacket water. Launching in April, the E-PowerPack is a self-contained solution that can generate electricity from many different heat sources on board.
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.
In regards to the engine technologies for HVs, the Atkinson cycle, cooled EGR, electric water pump and low friction technology play an important role for enhancing the engine thermal efficiency. 1 and water-cooled EGR. To address this, at low load, Exhaust VVT is advanced and internal EGR is used. Yamada et al. Click to enlarge.
The electric biturbo system comprises a classic exhaust turbocharger (mono- or bi-turbo) working together with a supplemental, electric-powered compressor arranged in series and powered by a separate 48-volt electrical system. Note the position of the single exhaustgas turbocharger and the electrically driven compressor.
The fourth stroke omits the conventional exhaust event in order to recompress the combustion gases. This approach differs from the traditional 6-stroke approach in which water is injected into the cylinder after recompression to extract additional expansion work from the hot combustion products, the team noted.
The vehicle meets Euro 6 exhaust standards. Both the exhaust inflow to drive the turbos and the supply of fresh air, plus the channelling of compressed air to the combustion chambers, have been designed to ensure that the three compression units work as a team as effectively as possible at all engine speeds. liters/100 kilometers (37.3
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. Flexible Oxy-Fuel Combustion for High-Penetration Variable Renewables - $717,658.
At the 38 th Vienna Motor Symposium Volkswagen is introducing a new, more fuel-efficient “Coasting - Engine off” micro hybrid system—which shuts off the engine completely—as well as a new, compact three-cylinder natural gas engine for the Polo. The new three-cylinder turbocharged engine with a cubic capacity of 1.0 The compact 1.0
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. First, it contains very little sulfur.
The heat of the exhaust gases is recovered to preheat the inlet gas with high-temperature heat exchangers when the system operates in a slightly exothermic mode. The complete system is compact, about the size of a refrigerator. It can produce between 1 and 2.5 Nm 3 /h of hydrogen.
A cooled Exhaust-Gas Recirculation (EGR) system improves efficiency in the high-expansion-ratio Atkinson cycle engine. Also contributing to increased engine efficiency is a battery-powered water pump, a friction-reducing beltless design and precise coolant-water-flow volume control. Combined maximum output. 73 kW (98 hp).
With the small circuit, the water warms up very quickly. Once the engine is warm, the cylinder head management opens the next circuit and draws the water through the crankcase. Speed is variable; if the engine is idling, for example, there is reduced need to draw away heat, and thus no need for higher speed water flow.
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. Stages in the development of the exhaust aftertreatment technology.
An actuator in the exhaust system, as fitted to the first SQ5 TDI, gives the V6 a sonorous sound. The intercooler has been changed over from an air/air cooler in the bumper to an indirect water/air cooler in the inside V of the engine. This offers the advantage since exhaustgas cleaning responds more quickly.
The Green Dolphin concept design is a five-cargo-hold CSR (Common Structural Rules) double-hull bulk carrier that meets current and future expected air and water emissions regulations. Wash water holding tanks are also included. Speed at design draught. Green Dolphin. DNV outlook to 2020.
Bosch is developing a water injection (WI) system for spark ignition engines in partnership with a pilot customer, said Dr. Rolf Bulander, member of the board of management of Robert Bosch GmbH and chairman of the Mobility Solutions business sector, in his talk on powertrain optimization at the Vienna Motor Symposium. Click to enlarge.
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. Wheeler, S.,
of hydrogen is currently produced via water electrolysis and only a fraction of this production is powered by renewable energy. There is no immediate concern for copper resources, but the average ore grade is declining as higher grade deposits become exhausted. According to the IEA, less than 0.1% —Palmer et al.
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