article thumbnail

Coltura: Supreme Court precedent means states can require all new vehicles sold be electric

Green Car Congress

Recent US Supreme Court precedent has opened the door for states to enact laws requiring all new cars sold in the state to be electric as of a certain date, according to a paper by the nonprofit Coltura published in the University of Michigan Journal of Environmental and Administrative Law. Its vision is a gasoline-free US by 2040 or sooner.

article thumbnail

Study quantifies impact of fuel composition on PM emissions from gasoline direct injection engines

Green Car Congress

Researchers from Tsinghua University and Peking University have investigated the effects of fuel properties on particulate emissions gasoline direct injection engines (GDI). Higher aromatics in gasoline resulted in much higher PM (mass), PN (particle number) and PAHs emissions, with higher toxicity to human health.

Gasoline 150
article thumbnail

Study of emissions from CNG- and gasoline-fueled autorickshaws suggests measurements and data, not assumptions, should drive policy

Green Car Congress

Chassis dynamometer emission testing conducted on 30 in-use Indian auto-rickshaws—two-stroke and four-stroke CNG-fueled (CNG-2S and CNG-4S) and four-stroke gasoline-fueled (PET-4S)—found that global warming commitment (GWC) associated with emissions from CNG-2S was more than twice that from CNG-4S or PET-4S, due mostly to CH 4 emissions.

Gasoline 287
article thumbnail

Study: EVs cannot succeed without developing parallel supercharging networks

Green Car Congress

These are the observations in an in-depth study of the industry by management professors at the University of California, Davis, and Dartmouth College. The article, “The Business of Electric Vehicles: A Platform Perspective,” was published recently in Foundations and Trends in Technology, Information and Operations Management.

Davis 334
article thumbnail

Converting Oil Shale to Gasoline via Alberta Taciuk Processor Results in Full Fuel Cycle GHG Emissions 1.5-1.75 Larger Than From Conventionally Produced Gasoline

Green Car Congress

GHG emissions for ATP shale (low and high cases) and conventional gasoline in grams of CO 2 e per MJ of final fuel delivered. times larger than emissions from conventionally produced gasoline. Among his findings were: Producing 1 MJ of reformulated gasoline from shale via the ATP requires the consumption of 0.56 Credit: ACS.

Gasoline 239
article thumbnail

Study suggests that increased enthalpies of vaporization in ethanol/gasoline mixtures could account for increased PM emissions from GDI engines fueled with ethanol blends

Green Car Congress

In a paper published in the ACS journal Energy & Fuels , they suggest that this could provide an explanation for increased PM emissions from a gasoline direct injection (GDI) engine when ethanol is blended. They used isooctane as a proxy for gasoline hydrocarbons in a wide range of ethanol blends (E5, E10, E20, E35, E50, E70, and E85).

Gasoline 199
article thumbnail

Tsinghua Study Finds That Conventional Three-Way Catalyst Can Handle the Unregulated Emissions from Low-Content Methanol-Gasoline Blends

Green Car Congress

At the tailpipe, the TWC ultimately reduced the regulated and unregulated emissions from the methanol-gasoline engine to the same levels as those generated by a conventional gasoline engine. A paper on their study was published online 3 December in the ACS journal Energy & Fuels. —Fan et al.

Gasoline 218