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Study finds particulates from auxiliary vehicle heaters can be up to 1000 times higher than from idling gasoline engines

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Researchers from Tampere University and the University of Eastern Finland have found that the particulate emissions of auxiliary heaters can be up to a thousand times higher than the particulate emissions of idling gasoline vehicles. Their open-access study is published in the journal Atmosphere.

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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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DLR team develops demonstrator of free-piston linear generator as range extender for EVs; technology transfer to Universal Motor Corp.

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Researchers at the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) Institute of Vehicle Concepts in Stuttgart have developed a demonstrator multi-fuel free-piston linear generator (FPLG, or Freikolbenlineargenerator, FKLG in German) as a range extender for electric vehicles. Intake, exhaust and fuel injection.

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Promising Delphi 1st-gen Gasoline Direct Injection Compression Ignition engine meeting ultra fuel efficient program targets

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GDCI engine was significantly better than advanced production spark injection gasoline engines, and comparable to very efficient hybrid vehicle engines at their best efficiency conditions (214 g/kWh). This early work established that gasoline-like fuels with high resistance to autoignition are preferred for PPCI. Earlier post.)

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Exploring gasoline-range naphtha as a low-soot, low-NOx alternative compression ignition fuel

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A number of papers from Kalghatgi and his colleagues—and now other groups, including Tsinghua University in China and the Eindhoven University of Technology—have been published recently, exploring different aspects of this approach. Light naphtha has a boiling range between 30 °C and 90 °C and 5-6 carbon atoms.

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Study finds catalyzed gasoline particulate filters effective at reducing particulate and PAH emissions from GDI engines

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The researchers assessed the gaseous, particulate, and genotoxic pollutants from two current technology gasoline direct injection vehicles when tested in their original configuration and with a catalyzed gasoline particulate filter (GPF). Their study is publishedin the ACS journal Environmental Science & Technology. Johnson, David R.

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Brunel engineers optimizing CAI combustion in 2-stroke camless gasoline DI engine

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Operating range of 2-stroke CAI fueled with gasoline, E10 and E85. Accordingly, the processes have been extensively researched over the last decade and adopted on prototype gasoline engines (e.g., Zhang et al. 2013a) Click to enlarge. Controlled autoignition (e.g., GM’s ongoing work, earlier post ).

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