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Insight into benzene formation could help development of cleaner combustion engines

Green Car Congress

That insight could also help the car industry make cleaner combustion engines. The current study is the first demonstration of the so-called “radical propargyl self-reaction” under astrochemical and combustion conditions. They believe that the finding could one day lead to cleaner combustion engines. Zhao et al.

Cleaner 243
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HEI launches two new non-tailpipe particulate emission studies

Green Car Congress

The Health Effects Institute (HEI) has launched two new studies funded under RFA 21-1, Quantifying Real-World Impacts of Non-Tailpipe Particulate Matter Emissions. The new studies are: Improved Characterization of the Real-World Contributions and Impacts of Non-tailpipe Particulate Matter Emissions ,” led by Greg Evans, University of Toronto.

Emissions 353
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ICCT LCA study finds only battery and hydrogen fuel-cell EVs have potential to be very low-GHG passenger vehicle pathways

Green Car Congress

In addition to its regional and temporal scope, this study is distinct from earlier LCA literature in four key aspects: This study considers the lifetime average carbon intensity of the fuel and electricity mixes, including biofuels and biogas. This results in significantly lower battery production emissions than in earlier studies.

Hydrogen 418
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CMU study finds SOA levels in cities like LA will remain high despite cleaner cars; nonlinear relationship between SOA and NOx

Green Car Congress

The findings of a study by researchers at Carnegie Mellon University, with colleagues at UC Berkeley, suggest that changing atmospheric NO x levels over the next two decades will likely significantly reduce the effectiveness of stricter new gasoline vehicle emissions standards in reducing concentrations of secondary organic aerosol (SOA).

Cleaner 191
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Aramco, KAUST team finds hybrid gasoline compression-ignition architecture can reduce GHG 26-55% vs. conventional SI

Green Car Congress

At a high level, they found that: Gasoline Compression-Ignition (GCI) hybrids reduce WTW GHG emissions by 7–43% versus unhybridized GCI. WTW GHG reduction for BEV depends on the availability of cleaner power. Four reference vehicles were equipped with: gasoline spark-ignition (SI) engine. Abdul-Manan et al. Abdul-Manan et al.

Gasoline 286
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London study suggests PHEV vans a practical, accessible solution for cleaner air in European cities

Green Car Congress

The results highlight that even without a fully established electric vehicle charging network, the hybrid vans were able to reduce tailpipe emissions significantly in the inner city, using the flexibility of a gasoline range-extender to complete longer journeys when required.

London 246
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Study suggests focusing on cold starts in gasoline cars as target for emissions reduction

Green Car Congress

A new study suggests that focusing on a gasoline-fueled vehicle’s cold start is the best target for future design changes to reduce emissions of criteria pollutants. The main goal of our project was to find out how effective regulations of gasoline vehicle emissions have been at reducing the formation of smog. —Greg Drozd.

Gasoline 150