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Southwest Research Institute engineers have developed the next generation of clean diesel engine technology to reduce hazardous nitrogen oxides (NO x ) and carbon dioxide emissions while minimizing fuel consumption. Making a relevant impact on pollutants requires a whole system approach. g/hp-hr NO x emissions).
opposed-piston heavy-duty diesel engine has achieved performance results that comply with pending 2027 requirements of the US Environmental Protection Agency (EPA) and California to reduce sharply emissions of nitrogen oxides (NO x ). Achates Power’s innovative 3-cylinder, 10.6L Furthermore, the 10.6L Earlier post.).
A team at Oak Ridge National Laboratory (ORNL) has achieved diesel-like efficiency in a single-cylinder spark-ignition (SI) research engine while maintaining compatibility with stoichiometric 3-way catalyst (TWC) systems. A major benefit of SI engines is that they allow the use of low carbon content fuels like methane and propane.
Historically, the refinery has produced diesel from crude oil and has a capacity of 70,000 barrels per day. GCEH will immediately commence retooling the refinery to produce renewable diesel from organic feedstocks such as vegetable oils. a Primoris Services Corp subsidiary.
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. The project team also demonstrated that the engine reduces carbon dioxide by 10%.
California’s air quality programs have forced a reduction in black carbon despite a significant increase in diesel fuel consumption. The reductions occurred during a time when diesel fuel consumption increased by about a factor of five. It is a win-win solution if we also mitigate carbon dioxide emissions simultaneously.
In the US, diesel freight trains emit 35 million metric tons of CO 2 annually and produce air pollution that leads to $6.5 Here we show that a 241-km range can be achieved using a single standard boxcar equipped with a 14-MWh battery and inverter, while consuming half the energy consumed by diesel trains. revenue-tonnes.
For a battery EV, 46% of its total carbon footprint is generated at the factory, before it has travelled a single mile. The study found that some of the CO 2 savings made during the use of low carbon vehicles is offset by increased emissions created during their production, and to a lesser extent, disposal. Estimated lifecycle.
A two-year study led by researchers at the University of Toronto has found large trucks to be the greatest contributors to black carbon emissions close to major roadways. Black carbon—commonly called soot—is a marker for exposure to diesel exhaust which is known to have negative health effects. Jonathan M.
A study by researchers led by a team from the Air Health Science Division of Health Canada (the Federal department responsible for helping Canadians maintain and improve their health) finds that commuters may be exposed to increased levels of traffic-related air pollution owing to close proximity to traffic-emissions. In-vehicle PM 2.5
In 2012, the International Agency for Research on Cancer (IARC), which is part of the World Health Organization (WHO), classified diesel engine exhaust (DEE) as carcinogenic to humans (Group 1). Diesel Emissions Health' Earlier post.). Our estimates suggest that stringent occupational and environmental standards for DEE should be set.
Diesel is currently taxed at a lower level than gasoline in Europe; however, since 2011 the EC has been considering reversing that situation by making energy taxes systematically reflect the CO 2 performance of the energy product. As on a volumetric basis, diesel contains more carbon than gasoline, the tax on diesel fuel would increase.
A “well-to-wheel” life cycle assessment (LCA) by a team from synthetic fuels producer Greyrock ( earlier post ), and the National Renewable Energy Laboratory (NREL) has determined the potential reduction of greenhouse gases and criteria pollutant emissions from the use of synthetic fuels directly converted from flare gas. billion liters (18.8
Creating a fuel cell engine for these trains would potentially eliminate their emissions and provide a much-needed reduction in air pollution from the railways that serve California’s warehouses and ports. SoCalGas is committing another $500,000 to advance the research.
The experimental results showed that DME operation retains the performance on the base diesel engine (338 kW peak power) while significantly reducing the engine-out emissions. In addition, the combustion is very complete and very low levels of regulated and non-regulated pollutant emissions can be detected (e.g. Soltic et al.
For a number of the most important pollutants, levels were substantially lower than required by regulations. Emissions of carbon monoxide and hydrocarbons were also significantly below required 2010 levels: 97% and more than 99.9%, respectively. Source: CRC. Click to enlarge. Background. In 2010, EPA’s stringent NO x limit of 0.20
Contribution of gasoline and diesel exhaust to SOA over 0% to 50% diesel fuel use. SOA contributions from the two sources are equivalent at 6% diesel fuel use. The United States and California state averages shown are based on total on- and off-road use. The urban areas in California shown are for on-road fuel use only.
The companies failed to install particulate filters on some of their heavy-duty diesel trucks and failed to verify that trucks they hired for use in California complied with the state rule. Heavy-duty trucks can emit drastically higher levels of pollution when not equipped with required emissions controls. Schneider National, Inc.
million in grant funding for clean diesel projects at six US ports. The grants awarded today will help six ports improve air quality and reduce carbon emissions, by providing $4.2 The grants awarded today will help six ports improve air quality and reduce carbon emissions, by providing $4.2
Infants born to women exposed to high levels of air pollution in the week before delivery are more likely to be admitted to a newborn intensive care unit (NICU), suggests an analysis by researchers at the US National Institutes of Health (NIH). Short-term exposure to most types of air pollutants may increase the risk for NICU admission.
New 2018 data from the California Air Resources Board (CARB) indicates that the state’s Low Carbon Fuel Standard (LCFS) continues to drive production of a growing volume of cleaner transportation fuels for California consumers. billion gallons of petroleum diesel have been displaced by clean, low-carbon alternatives.
Mayor Hidalgo described her anti-pollution plan, which will be considered by the Conseil de Paris (the assembly governing the city) on 9 February, to the weekly Le Journal du Dimanche (leJDD) on 6 December. The promotion of diesel fuel has been especially notable in France, where it is less expensive than unleaded gas. ”.
These first two trucks will replace around 65,000 diesel-fueled road miles, removing 87.4 By demonstrating that electric HGV transportation is commercially viable, this service will contribute to encouraging wider investment in technology and innovation that will support the haulage sector’s efforts to reduce emissions and air pollution.
Air pollution, and fine dust in particular, is calculated to contribute to more than four million deaths each year. While the mechanisms by which air pollutants cause cardiovascular events is undergoing continual refinement, the preponderant evidence support rapid effects of a diversity of pollutants including all particulate pollutants (e.g.
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 new study suggests that significant early childhood exposure to traffic-related air pollution (TRAP) is associated with structural changes in the brain at the age of 12. Those regions denote a reduction in cortical thickness linked to elemental carbon attributed to traffic. PLoS ONE 15(1): e0228092 doi: 10.1371/journal.pone.0228092.
Renault’s comparison of the carbon footprint of EV and ICE vehicles over production, operation and end of life. Renault assessed the diesel Fluence dCi (1.5L Diesel Fluence dCi. Quantifies the production of pollutant ozone (? The EV footprint (Fluence Z.E.) is shown with both UK and French grid mixes. Click to enlarge.
Professional drivers working in congested cities are exposed to black carbon levels that are on average a third higher than would be experienced at a busy roadside, according to research presented at the European Respiratory Society International Congress. We know quite a lot about the dangers of exposure to traffic pollution.
million settlement with Tesoro Refining & Marketing, LLC for violating the Low Carbon Fuel Standard (LCFS). The LCFS requires that regulated fuel producers report the carbon generated in the production of transportation fuels sold in California. The LCFS encourages the use of cleaner, low-carbon fuels in California.
Neste, the world’s leading producer of renewable diesel, has opened four new fueling stations in northern and central California, providing greater accessibility to 100% renewable diesel. Neste MY Renewable Diesel is competitively priced and delivers superior value compared to other diesel fuel alternatives.
Freight transportation is a pillar of the US national economy, but while long-haul trucks account for less than 6% of the vehicle miles traveled over US highways, they account for about 40% of the emissions of air polluting particulate matter and about 55% of nitrogen oxides, the precursor to ozone in the atmosphere, the study said.
Schematic overview of the primary black-carbon emission sources and the processes that control. the distribution of black carbon in the atmosphere and determine its role in the climate system. Accounting for all of the ways black carbon can affect climate, it is believed to have a warming effect of about 1.1 Source: Bond et al.
The study found that 60% of the winter primary hydrocarbon hydroxyl radical reactivity in London is from those diesel-related hydrocarbons; the authors predicted that the longer-chain HCs contribute up to 50 % of the ozone production potential in London. —Dunmore et al. Dunmore et al.
The interdisciplinary study, published in the journal Environmental Microbiology , has important implications for the treatment of infectious diseases, which are known to be increased in areas with high levels of air pollution. Data from the study shows that black carbon induces changes in biofilm formation, structure, and function.
The fuel produced at the plant will deliver a reduction of more than 70% in greenhouse gas emissions compared to conventional fossil jet fuel, equivalent to taking almost 27,000 petrol or diesel cars off the road each year. British Airways has a roadmap to meet its net zero 2050 target.
ClearFlame Engine Technologies, a a startup developing net-zero engine technology ( earlier post ), successfully completed an on-road demonstration of its proprietary technology that enables a heavy-duty truck diesel engine to operate on low-carbon and carbon-negative fuels, including 100% renewable plant-based fuels.
The IPCC’s global assessment of mitigation options for the transport sector places the greatest emphasis on the mitigation potential of improving carbon efficiencies for private vehicles and fuels. Shifting from gasoline to diesel vehicles could increase emissions of health-damaging small particulates (PM 10 , PM 2.5 ).
In bringing power plant efficiencies to the microscale through high-temperature ceramics, IPG’s turbine delivers a 51% fuel efficiency, reduces CO 2 emissions by 43% and fuel costs by up to 76% (when on natural gas) compared to diesel generators and gas engines.
Our findings add to evidence that subways expose millions of commuters and transit employees to air pollutants at levels known to pose serious health risks over time. Although iron is largely nontoxic, some forms of organic carbon have been linked to increased risk of asthma, lung cancer, and heart disease, the study authors say.
A new study by an international team led by researchers from the Paul Scherrer Institute (PSI) in Switzerland has found that modern diesel passenger cars equipped with diesel particulate filters (DPFs) emit fewer carbonaceous particulates than gasoline-powered vehicles. HC), NO x and carbon monoxide (CO) at 22 °C and −7 °C.
A new analysis by the NGO Transport & Environment (T&E) concludes that diesel cars emit more CO 2 than equivalent cars on a full lifecycle basis—i.e., According to the T&E analysis, an average diesel car produces emits 3.65 According to the T&E analysis, an average diesel car produces emits 3.65 l/100 km (37.3
A new working paper by the the International Council on Clean Transportation (ICCT) concludes that tighter heavy-duty diesel vehicle emissions standards in Mexico (NOM 044 standards) would result in a net benefit to Mexico of US$123 billion (1.6
Testing of two popular Euro 6d-temp diesels by Ricardo, commissioned by the environmental NGO Transport & Environment (T&E), has found that the periodic regeneration of diesel particulate filters (DPFs) in the light-duty vehicles can generate spikes of particulate emissions of more than 1,000 times the normal rate.
The California Air Resources Board announced a settlement with AltAir-Paramount, LLC addressing reporting violations under the Low Carbon Fuel Standard (LCFS). AltAir produces renewable diesel and renewable jet fuel from tallow at its facility in Paramount, CA. Of that total, $66,500 goes into California’s Air Pollution Control Fund.
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