This site uses cookies to improve your experience. To help us insure we adhere to various privacy regulations, please select your country/region of residence. If you do not select a country, we will assume you are from the United States. Select your Cookie Settings or view our Privacy Policy and Terms of Use.
Cookie Settings
Cookies and similar technologies are used on this website for proper function of the website, for tracking performance analytics and for marketing purposes. We and some of our third-party providers may use cookie data for various purposes. Please review the cookie settings below and choose your preference.
Used for the proper function of the website
Used for monitoring website traffic and interactions
Cookie Settings
Cookies and similar technologies are used on this website for proper function of the website, for tracking performance analytics and for marketing purposes. We and some of our third-party providers may use cookie data for various purposes. Please review the cookie settings below and choose your preference.
Strictly Necessary: Used for the proper function of the website
Performance/Analytics: Used for monitoring website traffic and interactions
Ram is reportedly considering adding a diesel option to the Power Wagon, supporting recent rumors leaked by dealerships. liter straight-six on several HD models, the 2500 Power Wagon comes exclusively with a 6.4-liter While the brand offers the Cummins diesel 6.7-liter liter V8 that burns gasoline.
The palm-sized spring-loaded jumping robot has gone from barely being able to chain together a few open-loop jumps to mastering landings , bouncing around outside , powering through obstacle courses , and occasionally exploding.
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 ). On current trends, the ratio may well continue to increase. A summary of the results is shown in the table and chart (log scale) below.
A study by European researchers has found that two-stroke (2S) scooters, although constituting a small fraction of the fleet, can dominate urban vehicular pollution through organic aerosol and aromatic emission factors up to thousands of times higher than from other vehicle classes.
Intelligent Power Generation (IPG) will demonstrate the impact of Flameless Ceramic Turbine technology in UK electric vehicle (EV) charging infrastructure, following a £1-million contract from Highways England. IPG‘s flameless combustor uses the turbine exhaust and high heat transfer effectiveness through the IPG regenerator unit.
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.
A new report released by the Air Quality Expert Group ( AQEG ) in the UK recommends as an immediate priority that non-exhaust emissions (NEE) are recognized as a source of ambient concentrations of airborne PM, even for vehicles with zero exhaust emissions of particles. —“Non-Exhaust Emissions from Road Traffic”.
A team of University of California, Riverside Bourns College of Engineering students have won an EPA student design contest for developing an exhaust aftertreatment device that cuts CO, NO x and PM emissions from lawnmowers. A filter captures harmful pollutants.
The California Air Resources Board approved a new regulation designed to reduce pollution further from ocean-going vessels while docked at California’s busiest ports. These auxiliary engines power the electricity and other onboard operations during a vessel’s visit, which can run from less than one day to several days.
Achates Power’s innovative 3-cylinder, 10.6L Engine and aftertreatment system development and performance assessments were conducted at the Achates Power facility in San Diego and the Aramco Research Center-Detroit. —David Crompton, president and CEO, Achates Power. Rendering of the 10.6-liter liter engine. Earlier post.).
Achates Power announced that the 10.6-liter, The Achates Power ultra-low-NOx engine is engineered to achieve superior fuel efficiency because of its lower heat losses, improved combustion and reduced pumping losses. Achates Power is backed by the Oil and Gas Climate Investments, Saudi Aramco Energy Ventures, and other investors.
The capability to heat up the catalytic converter rapidly at all times increases the overall efficiency of exhaust-gas aftertreatment. The EMICAT e-catalyst developed by Vitesco Technologies ensures effective exhaust gas aftertreatment, even when the exhaust gas is actually too cold for this purpose.
Hybrid Electric Turbocharger for Exhaust Energy Recovery and Transient Lag Reduction. NexTech Materials of Lewis Center, Ohio, has developed a new diesel engine exhaust NO x sensing technology that is able to rapidly and selectively measure nitrogen oxides in diesel engine exhaust streams. Lead organization. Description.
Diesel-powered commuter trains may expose their passengers to elevated levels of certain black carbon and ultrafine particles, especially in the coach directly behind the locomotive, according to a new study from researchers at the University of Toronto. A paper on the study is published in the journal Atmospheric Environment. 2017.02.015.
A UCLA study of the performance of retrofit systems for diesel-powered school buses has found that while the systems significantly lowered tailpipe emissions, there was no unequivocal decrease for in-cabin air pollutants after retrofitting. —Zhang and Zhu. —Zhang and Zhu.
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. Unregulated pollutants also include ozone precursors and bioaccumulative and toxic compounds. L) and medium-duty (6.4 —Chin et al.
According to Agah, a renowned researcher in chip-scale gas chromatography and Office of the Vice President for Research and Innovation Faculty Fellow, the development of effective strategies for reducing occupational exposure to pollutants requires accurate, time-resolved measurement of exposure.
The researchers found that while EVs do offer a very promising solution to energy issues due to their replacement of petroleum fuels, for now “ the high pollution levels of coal-fired power plants will trade off EVs’ potential energy benefits in China ”. The power of EVs is electricity from the grid. and NO x emissions.
The all-electric TRU achieves zero-emission results by using a high efficiency refrigeration system powered by roof-mounted solar photovoltaic panels, a wheel-momentum generator, lithium-ion batteries, and a unique auxiliary power unit to eliminate the requirement for diesel fuel to power the refrigeration system.
Solid CFDNPs in air pollution are characterized by the abundant presence of strongly magnetic, iron-rich particles which condense and/or oxidize upon airborne release, often retaining a rounded or spherical shape as they cool. annual air quality standard of 12 ? —Calderón-Garcidueñas et al. Cross, Imad A.M. Ahmed, Vassil V.
A study by two researchers at Sandia National Laboratories has concluded that building and operating a high-speed passenger ferry solely powered by hydrogen fuel cells within the context of the San Francisco Bay is technically feasible, with full regulatory acceptance as well as the requisite associated hydrogen fueling infrastructure.
To improve fuel efficiency, advanced combustion engines are being designed to minimize the amount of waste heat in the exhaust. As a result, future generations of exhaust after-treatment catalysts must perform at temperatures that are 100 °C lower than current catalysts. —Nie et al.
A new briefing paper from Imperial College London estimates that in 2021, 52% of all small particle pollution from road transport came from tires and brakes. Tire wear particles pollute the environment, the air we breathe, the water run-off from roads and has compounding effects on waterways and agriculture.
Marine engine designer and power system integrator WinGD and engine builder Hyundai Heavy Industries’ Engine Machinery Division (HHI-EMD) will strengthen their collaboration by partnering to develop environmentally sustainable two-stroke engine technology. It is possible to recirculate exhaust gas up to a maximum rate of 50% mass flow.
The California Air Resources Board (ARB) has released , for public review, a concept paper to initiate discussion on the development of a Short-Lived Climate Pollutant Reduction Strategy. Short-lived climate pollutants (SLCPs) include methane, tropospheric ozone, black carbon, and fluorinated gases.
An electrically driven compressor for precise exhaust gas recirculation is also used. The researchers are starting with a medium-load driving style that is common in highway operation, where the engine must deliver 100 kW of power. This is done via exhaust gas recirculation (EGR). —Patrik Soltic.
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.
The European Commission presented its proposal for Euro 7 standards to reduce air pollution from new motor vehicles sold in the EU. However, in 2050, more than 20% of cars and vans and more than half of the heavier vehicles are expected to continue to emit pollutants from the tailpipe.
The levels of these non-fuel-derived gases will likely remain unchanged, even as more drivers transition from gas-powered to electric vehicles. While some VOCs are released in exhaust, others may arise from an unexpected source—e.g., Cliff et al. the products used for “car care,” such as windshield washer fluid.
For gasoline vehicles, direct injection (GDI) engines are growing in popularity as drivers demand more fuel efficiency and engine power. These engines produce a high number of fine particulates that pollute the air.
Risø, the National Laboratory for Sustainable Energy at the Technical University of Denmark (DTU), is developing an electrochemical method for purifying exhaust, especially exhaust gases from diesel engines. Research on the electrochemical reduction of pollutants has been underway since 1975, when Pancharatnam et al.
Power management company Eaton’s Vehicle Group has demonstrated cylinder deactivation (CDA) as an effective technology for meeting future global emissions requirements for diesel-engine powered commercial vehicles. Environmental Protection Agency (EPA) and European Commission (EC) are slated for adoption in coming years.
Eaton Corporation has selected A123 Systems to supply battery systems for production of a hybrid power system to be installed on a Ford F550-based Plug-in Hybrid Electric Vehicle (PHEV). Earlier post.).
The engine was also equipped with an electrically driven volumetric pump in the exhaust gas recirculation (EGR) path which gives the freedom to set any desired EGR rate, independently from the pressure ratios across the turbocharger. The common rail pump was externally lubricated by engine oil so that it can handle the low fuel lubricity.
Comparison of brake thermal efficiency and specific fuel consumption at rated power (ICOMIA Mode 5), hydrogen vs. gasoline engines. It, or a scaled-up version, could also provide a solution for the Asian motor vehicle fleet, in which two-stroke engine vehicles constitute a major share—and contribute significantly to air pollution.
The article provides an assessment of the state of power generation in the world today, and provides analyses of productive directions for the future. We are certainly in revolutionary times, but it is clear that power generation sources will not become fully renewable and transport will not become fully electric for several decades, if ever.
Use of soot-free “Clear” Exhaust Gas Recirculation (EGR) can allow for lower NOx emissions without the competing soot constraint, meeting next-generation emissions standards without added aftertreatment complexity. ClearFlame uses soot-free “Clear” Exhaust Gas Recirculation (EGR) to maintain this ratio under varying load conditions.
Southwest Research Institute (SwRI) is helping a client develop a simple post-refinery treatment process that reduces exhaust emissions from diesel engines by overcoming the soot/nitrogen oxides (NO x ) reduction trade-off that has plagued engine researchers for decades. This establishes a blend-in process that easily modifies the fuel.
Battery electric cars emit less greenhouse gases and air pollutants over their entire life cycle than petrol and diesel cars, according to a European Environment Agency (EEA) report. For local air quality, electric vehicles also offer clear benefits, mainly due to zero exhaust emissions at street level.
Freescale Semiconductor announced the first of several powerful multicore automotive MCUs that help automotive designers improve engine efficiency and reduce exhaustpollution. Freescale’s Power Architecture products are also supported by its global systems labs and software customization services. The new MPC5676R MCU.
The product is a newly developed catalytic process capable of reducing emission of harmful substances such as soot, hydrocarbons and heavy metals from ships powered by bunker fuel, also known as fuel oil. Particulate filter systems are developed for diesel engine exhaust with a relatively low sulfur and ash content.
The new engine is more powerful, more fuel efficient and produces lower emissions than its predecessor. liter turbo diesel engine produces maximum power of 177 kW (241 hp DIN) at 4,000 rpm and torque of 550 N·m (406 lb-ft) at 1,800-2,800 rpm. in), and exhaust valves are 24.5 Intake valves measure 28 mm (1.1 cm 3 (1.51
These new compounds were not previously known to exist, and raise additional concerns about the health impacts of heavily-polluted urban air or dietary exposure. PAHs form naturally as the result of almost any type of combustion, from a wood stove to an automobile engine, cigarette or a coal-fired power plant. Staci Simonich.
These dual-fueled engines provide similar performance to diesel engines with no power loss, although with higher NO x emissions. The direct gas injection system assures lower methane emissions from the tailpipe exhaust. The gas is ignited through an injection of liquid pilot fuel. The paper is published in the journal Energy Policy.
We organize all of the trending information in your field so you don't have to. Join 5,000+ users and stay up to date on the latest articles your peers are reading.
You know about us, now we want to get to know you!
Let's personalize your content
Let's get even more personalized
We recognize your account from another site in our network, please click 'Send Email' below to continue with verifying your account and setting a password.
Let's personalize your content