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NREL announces $18M investment in 9 new projects to advance medium- and heavy-duty natural gas vehicle technologies

Green Car Congress

Projects selected through this solicitation will complement DOE’s Vehicle Technologies Office (VTO) research started in FY 2017. will address natural gas engine emissions and efficiency improvements by developing a natural gas specific combustion design utilizing optimized in-cylinder charge motion and cooled exhaust gas recirculation (EGR).

Gas 191
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Study finds catalyzed gasoline particulate filters effective at reducing particulate and PAH emissions from GDI engines

Green Car Congress

Polycyclic aromatic hydrocarbons (PAHs) and nitrated PAHs were quantified in both the vapor and particle phases of the PM, with the GPF-equipped vehicles practically eliminating most of these species in the exhaust. liter downsized turbocharged centrally-mounted direct injection engine. The first was equipped with a 2.0-liter

Gasoline 253
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Bosch leading Direct4Gas consortium to develop direct injection for monovalent natural gas engines

Green Car Congress

Researchers in an unrelated study of direct injection natural gasoline engines (dual-fuel combustion in CI-engines using RCCI as well as conventional duel-fuel combustion) at Chalmers University (Sweden) noted that methane’s very high octane number allows the use of high compression ratios in spark ignition engines. million (US$4.3

Gas 150
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Daimler Trucks NA SuperTruck achieves 115% freight efficiency improvement over 2009 baseline; 50.2% engine BTE

Green Car Congress

The Freightliner SuperTruck uses a downsized and downsped 10.7-liter The Freightliner SuperTruck features a low-back-pressure, next-generation aftertreatment system that efficiently removes NO x from the exhaust stream. The aftertreatment system features additional insulation to retain maximum heat energy in the exhaust.

2009 150
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Calls for an international 48V electrical standard for vehicles; looming WLTP implementation

Green Car Congress

The EU goal is to introduce the WLTP by 2017 if possible and no later than 2020 to coincide with the 95 g/km requirement. This means that in addition the power demand is more difficult to achieve with engine downsizing and transmission down-speeding alone. the Worldwide harmonized Light vehicles Test Procedures (WLTP). The conference.

Standards 257
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Study: splash blended ethanol fuels with higher ethanol percentage enable higher thermal efficiency in SI engine

Green Car Congress

A team from the University of Birmingham (UK) and Shell Global Solutions has investigated the effect of RON, octane sensitivity and charge cooling in splash-blended ethanol fuels with different volume percentages of ethanol on a single-cylinder direct-injection spark ignition (DISI) research engine. and 85 vol.%

Engine 150
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Study finds fleet switch from PFI to GDI engines will result in net reduction in global warming

Green Car Congress

The study, by a team of researchers from Carnegie Mellon University, University of Georgia, Aerodyne Research, California Air Resources Board (ARB), Ohio State University, UC Berkeley, and UC San Diego is published in the ACS journal Environmental Science & Technology. May, Greg T. Drozd, Allen H. Goldstein, Lynn M. 6b06509.

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