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New Emissions Analytics study suggests pollution from tire wear now 1,850 times worse than exhaust emissions

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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 testament to the filtration efficiency of the latest gasoline particulate filters (GPFs), tailpipe mass emissions are now as low as 0.02

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European project working to establish basis for standardization of methanol fuels in Europe

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A current research project is working to establish the technical basis for standardization of methanol fuels in Europe. The partners in the “Methanol Standard” project aim to pave way for the certification and market launch of methanol fuels. Hardware-in-the-loop test rig for the qualification of fuels.

Standards 259
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New Delphi Technologies 500+ bar GDi system cuts gasoline particulate emissions by up to 50%, reduces fuel consumption

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Reducing the number of exhaust gas particulates, including those smaller than 23 nm, will help manufacturers meet increasingly stringent future global emissions standards. —Walter Piock, chief engineer, Gasoline Systems, Delphi Technologies. Delphi 500+ bar GDi pump.

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Study finds engines emit exhaust nanoparticles even when not fueled during engine braking

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Exhaust particle size distributions measured by ELPI (color map) and particle concentration measured by CPC (white line) during individual engine braking conditions (speed change from 32 km/h to 0 km/h). The exhaust sample was taken from the exhaust manifold. The exhaust sample was taken from the exhaust manifold.

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Second-generation Audi A7 Sportback features standard 48V MHEV system with gasoline or diesel engines

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The drive system features a new mild-hybrid system (MHEV) as standard. TFSI (gasoline) or a 3.0 liters of fuel per 100 kilometers (34.6 The B-cycle combustion process (a modified Miller cycle, earlier post ), which is designed specifically for part load, makes the V6 gasoline engine particularly efficient.

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Environment Canada/MECA team assesses black carbon emissions in GDI engine exhaust; evaluation of prototype gasoline particulate filter

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Solid bars represent low ambient temperature measurements whereas open, dashed bars represent standard temperature measurements. The major difference between the PFI and GDI engines lies in the fuel injection method and mixture preparation. mg/mi at standard temperature to 4.3?4.5 mg/mi at standard temperature to 0.01?0.5

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CARB releases results of multi-year E15 study; multiple air quality benefits with slight reduction in fuel economy

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The California Air Resources Board (CARB) has released the results of a multiyear study evaluating exhaust emissions from the use of California Reformulated Gasoline (CaRFG) that contains 15 volume percent ethanol (E15). California currently limits the ethanol content of gasoline to 10 percent.