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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.
California Assemblymembers Marc Berman (D-Menlo Park) and Lorena Gonzalez (D-San Diego) introduced legislation to phase out the sale of new gas-powered small off-road engines (SORE), which are primarily used in lawn and garden equipment, including leaf blowers, lawn mowers, and other outdoor power equipment. —Assemblymember Marc Berman.
liter, heavy-duty opposed-piston, three-cylinder diesel engine it developed in a project funded by the California Air Resources Board (CARB) and several partners ( earlier post ) has entered fleet service with WALMART Corporation in a Peterbilt 579 tractor. liter engine. Achates Power announced that the 10.6-liter,
Several organizations, encompassing companies, research labs, and academia, have formed the Hydrogen Opposed Piston Engine Working Group. The Working Group consists of members undertaking research and development in the field of hydrogen combustion in an opposed-piston engine. The only criteria emission of concern is NO x.
The California Air Resources Board approved a measure that will require most newly manufactured small off-road engines (SORE) such as those found in leaf blowers, lawn mowers and other equipment be zero emission starting in 2024. Despite their small size, these engines are highly polluting.
In a paper being presented at WCX SAE World Congress Experience in Detroit this week, a team from MIT is proposing the use of a flex-fuel gasoline-alcohol engine approach for a series-hybrid powertrain for long-haul Class 8 trucks. Ethanol or methanol would be employed to increase knock resistance. —Daniel Cohn. —Daniel Cohn.
—Brian Cull, Senior Intelligent Transport Systems Engineer, Highways England. Flameless combustion eliminates all pollutant emissions such as NO x , CO, and PM, and enables the fuel-flexibility that is crucial in creating demand for clean alternative fuels, accelerating the transition to a net-zero carbon economy.
The funds will be used to retrofit and replace old, polluting diesel vehicles and equipment, including school buses, heavy-duty trucks, tractors and port equipment. The project will also replace one diesel sweeper at the Port of Los Angeles with two cleaner Tier 4 engines. The US Environmental Protection Agency (EPA) awarded $9.6
Comparison of brake thermal efficiency and specific fuel consumption at rated power (ICOMIA Mode 5), hydrogen vs. gasoline engines. Such an engine could provide a cost-effective solution for small recreational vehicle- and motorcycle applications. Oh and Plante. Click to enlarge. —Oh and Plante. g/kWh with a 3.3% kW) rating.
The only modification made to the engine, a Lycoming IO-360-A1 D6, was the installation of new pistons to increase the compression ratio from 8.50:1 The 200 hp Lycoming four-cylinder engine power the aircraft with a cruise speed of 143 mph. Flight endurance at 65% power setting is approximately seven hours.
It’s a significant step forward for the rail industry and will change the course for even cleaner, more energy-efficient transport. —Alan Hamilton, Wabtec vice president, Engineering. The battery-electric locomotive pilot program is part of a $22.6-million
Thus, it is important to identify and quantify the most important human-produced sources of VOC emissions to effectively mitigate air pollution and improve human health, the authors said. Even so, lotions, paints and other products contribute about as much to air pollution as does the transportation sector.
Transport for London (TfL) recently announced a package of measures to tackle pollution levels at the busiest roads in central London. The start of a concerted No Engine Idling campaign to deter unnecessary engine running from all motor vehicles when stationary. —Kulveer Ranger, the Mayor’s Environment Director.
Cooking, cleaning and other routine household activities generate significant levels of volatile and particulate chemicals inside the average home, leading to indoor air quality levels on par with a polluted major city, according to a study by researchers at the University of Colorado Boulder. Earlier post.).
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.
Heavy-duty trucks can emit drastically higher levels of pollution when not equipped with required emissions controls. Transport companies must comply with California’s rule to improve air quality and protect adjacent schools and communities from breathing these toxic pollutants.
Under the Environmental Protection Agency (EPA) National Clean Diesel Rebate program, public and private school bus fleet owners are eligible to apply for funding to replace school buses that have older, dirtier Diesel engines. Many of the nation’s school buses use diesel engines, which are durable and long-lasting.
The US Environmental Protection Agency (EPA) is responding to petitions from the California Air Resources Board, the San Joaquin Valley Air Pollution Control District, and the California Air Pollution Control Officers Association to address harmful nitrogen oxide (NO x ) and particulate matter (PM) emissions from locomotives.
Using this type of measurement, the Port also posted its best year ever, lowering the average amount of emissions the port generates to move each container of cargo for all eight pollutants tracked by the Port’s emissions inventory, including greenhouse gases (GHG), which were down 30% per container on average since 2005. —Chris Cannon.
Meeting standards for fine particle pollution, or PM 2.5 , is the San Joaquin Valley’s most critical air quality challenge. The San Joaquin Valley has the worst particulate matter pollution in California—and the worst in the nation for annual federal standards. The newly adopted 2018 Valley PM 2.5
Data collected during a major 2010 state-federal atmospheric research project show that the first-in-the-nation regulation requiring ocean-going vessels to use clean fuel when near the California coast has been extremely effective in reducing sulfur dioxide pollution from ships, according to the California Air Resources Board (ARB).
Wagner, Director of the Fuels Engines and Emissions Research Center, and Dr. Sreekanth Pannala, Senior Research Staff Member in the Computing and Computational Sciences Directorate at Oak Ridge National Laboratory in a keynote talk at the recent Global Powertrain Conference. 3D DNS of auto-ignition with 30-species.
gasoline engines. This engine configuration was found to not comply with certification emission standards when it was tested by CARB. FCA cooperated with CARB to resolve all allegations of violating Motor Vehicle Pollution Control Devices regulations. More than 30,000 vehicles were involved. FCA’s settlement includes a $2.8-million
An article in the latest issue of IEA Energy: The Journal of the International Energy Agency reports that Estonia, which has the most developed oil shale industry in the world, is collaborating in pursuing wider use of oil shale in a cleaner, more sustainable manner. Different that shale oil—i.e.,
Cao, assistant professor of electrical and computer engineering, and Fern, professor of computer science, have received $860,000 for their role in the four-year Daimler SuperTruck project. According to the DOE, the transportation sector is the US leader in carbon pollution among all economic sectors, accounting for nearly 29% of emissions.
The results for 2012 mark six straight years of improving air quality in the harbor area due to the Port’s focused efforts to reduce air pollution caused by goods movement. Compared to 2005 emissions levels, all of the key air pollutants from port-related sources were reduced in 2012. Greenhouse gases were lowered by 24%.
The dual-fuel diesel-biomethane powered bus is expected to reduce pollutant emissions and greenhouse gas emissions by around a half. Originally powered entirely by diesel, the Mercedes-Benz engine has been adapted by the Hardstaff Group ( earlier post ) to run for 60-80% of the time on low-carbon biomethane.
The cleaner energy locomotive was made possible by an EPA award of more than $1 million under the American Recovery and Reinvestment Act to the New York State Department of Transportation. New York State DOT and CSX Transportation used the funding to replace the old conventional engine on the locomotive with three smaller, cleanerengines.
A new report from the US Environmental Protection Agency (EPA) finds that air pollution at US ports can be reduced significantly at all port types and sizes through a variety of strategies and cleaner technologies. national ambient air quality standards (NAAQS). relative reductions from drayage trucks.
Research led by Sandia National Laboratories has resulted in new insights about how to understand and ultimately to control the chemistry of ignition behavior and pollutant formation. The discovery eventually will lead to cleaner, more efficient internal combustion engines. Conceptional hierarchical data structure and work flow.
Bucket trucks are a critical tool for building and maintaining the electric grid, which is set for major investment and expansion as the country shifts toward cleaner sources of energy. Con Edison owns more than 300 such trucks.
Car users from the world’s least affluent cities are exposed to a disproportionate amount of in-car air pollution because they rely heavily on opening their windows for ventilation, according to a new global study led by researchers at the University of Surrey. The study was part of the Clean Air Engineering for Cities (CArE-Cities) project.
Sandia National Laboratories mechanical engineer Jackie Chen and colleagues Alex Krisman and Giulio Borghesi recently identified novel behavior of a key, temperature-dependent feature of the ignition process called a cool flame in the fuel dimethyl ether. The insights gleaned will contribute to more efficient, cleaner burning engines.
The US Environmental Protection Agency (EPA) has issued a Request for Proposals ( EPA-OAR-OTAQ-12-05 ) with up to $20 million in FY 2012 grant funding to establish clean diesel projects aimed at reducing pollution from the existing fleet of diesel engines. Engine Upgrades: up to 50% of the cost of eligible engine upgrades.
Emissions from automobile exhaust systems have decreased in recent years due to the introduction of cleaner fuels and new control technologies on internal combustion engines, as well as increases in numbers of hybrid and electric vehicles. 10 ) of urban air, a fraction known to be enriched with non-tailpipe constituents.
signed SB 1383 , establishing the nation’s toughest restrictions on super pollutants including black carbon, fluorinated gases and methane. Sources of these super pollutants include petroleum-based transportation fuels, agriculture, waste disposal and synthetic gases used in refrigeration, air conditioning and aerosol products.
A scatter plot of CO, as a tracer for pollution, versus CO 2 , as a tracer for the amount of combustion, for 2002 and 2010. The magnitude of the drop in VOC levels was surprising, even to researchers who expected some kind of decrease resulting from California’s longtime efforts to control vehicle pollution. ppbv/ppmv to 10.7
The changes we are announcing today will help make our oceans and lakes cleaner by reducing ship emissions. New standards will reduce allowable emissions of key air pollutants from ships. Updated requirements for the transfer of oil between tankers will align Canadian requirements with IMO pollution prevention standards.
GM China Engineering is developing an advanced filtration system for global use that utilizes a combination of proven technologies. The new system aims to reduce harmful particles entering the cabin by up to 80% within five minutes and to make in-vehicle air up to 10 times cleaner than outside air within 10 minutes of operation.
The finding could help combustion chemists make more-efficient, less-polluting fuels and help materials scientists fine-tune their carbon nanotubes and graphene sheets for faster, smaller electronics. Specifically, the fundamental chemistry discovery could be used to find or to design fuels that burn cleaner and don’t produce as much soot.
The mode of travel you take on your daily work commute can make a big difference in your exposure to air pollution, according to a new study by researchers at the California Air Resources Board (ARB). Boxplot of average PM 2.5 , BC, UFP, and LDSA [lung deposited surface area] concentrations for each commute mode.
Local air districts are soliciting applications from truck owners to compete for grants to upgrade or replace their vehicles in March/April 2011, with options that include truck replacement, engine replacement (repower) or retrofit. million); San Joaquin Valley Air Pollution Control District ($44.7 million); and. million); and.
Eligible diesel vehicles, engines and equipment may include drayage trucks; marine engines; locomotives and non-road engines; and equipment or vehicles used in the handling of cargo at a marine or inland water port. Verified/Certified Engine Upgrades: up to 40% of the cost (labor and equipment) of eligible engine upgrades.
To date its one Achilles heel, particularly of older models, has been the pollution generated by chugging diesel engines. The cleaner, greener vehicles I’ve seen today are proof that the evolution of the great London cab is well and truly underway. Electric (Battery) Emissions Fleets Plug-ins Policy Urban mobility'
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