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Hydrogen Opposed Piston Engine Working Group formed

Green Car Congress

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.

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Dodge adding a simulated engine rumble to an upcoming EV

Teslarati

Electric vehicles (EVs) don’t make nearly as much noise as vehicles with gas engines, though one automaker is looking to simulate the sound of a gas vehicle in one of its upcoming EVs. The patented systems include “Active Vibration Enhancement” (AVE), which will make the car vibrate as if there was a V8 engine inside.

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MIT team exploring using LOHCs directly on-board hydrogen-fueled trucks

Green Car Congress

Green, the Hoyt Hottel Professor in Chemical Engineering, is developing a technology that allows liquid organic hydrogen carriers (LOHCs) not only to deliver hydrogen to the trucks, but also to store the hydrogen onboard. A team of MIT researchers led by William H. Proposed process flow diagram for onboard dehydrogenation.

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Study finds gasoline exhaust contributes more to formation of secondary organic aerosols than diesel

Green Car Congress

Contrary to expectations, exhaust from gasoline vehicles contributes more to the production of secondary organic aerosols (SOA) than exhaust from diesel vehicles, according to a new study by scientists from the Cooperative Institute for Research in Environmental Sciences (CIRES), NOAA’s Earth System Research Laboratory (ESRL) and other colleagues.

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Researchers developing free-piston linear generator for exhaust waste heat recovery

Green Car Congress

Researchers in China have developed a novel free-piston linear generator (FPLG) to recover exhaust waste heat efficiently from a vehicle engine. The FPLG can be used in a small-scale organic Rankine cycle (ORC) system and can directly convert the thermodynamic energy of working fluid into electricity. —Tian et al.

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UK researchers report that alcohols in windshield washer fluid are major unreported source of VOCs emissions from cars, including EVs

Green Car Congress

There are widespread policy assumptions that the phase-out of gasoline and diesel internal combustion engines will over time lead to much reduced emissions of Volatile Organic Compounds (VOCs) from road transport and related fuels. While some VOCs are released in exhaust, others may arise from an unexpected source—e.g.,

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CMU study finds secondary organic aerosol production from PFI and GDI vehicles has been “substantially” reduced by tightening NMOG standards

Green Car Congress

Secondary organic aerosol (SOA) is a major component of fine particulate matter—which causes adverse health effects—even in urban environments; vehicles may be a dominant source of SOA in urban areas, although there is still an ongoing debate over SOA formation from on-road sources. —Zhao et al.

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