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Study finds GHG emissions from corn ethanol now 46% lower than gasoline

Green Car Congress

A new study by a team from Environmental Health & Engineering (EH&E) has found that greenhouse gas emissions from corn ethanol are 46% lower than those from gasoline—a decrease in emissions from the estimated 39% done by previous modeling. gCO 2 e/MJ) which is 46% lower than the average carbon intensity for neat gasoline.

Gasoline 493
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DOE researchers investigate economic and environmental impacts of converting wet waste to renewable diesel

Green Car Congress

Heavy-duty diesel vehicles using mixing controlled compression ignition (MCCI), the most common ignition and combustion strategies for heavy-duty diesel engines, contribute significantly to the emissions of GHG, oxides of nitrogen (NO x ), and particular matter (PM) and are subject to stringent emission standards. —Ou et al.

Waste 434
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Setting New Standards for Clean Cars

Plug in America

federal government has worked on two programs in particular: EPA’s Light Duty Vehicle Emissions (LDV) Standards and NHTSA’s Corporate Average Fuel Economy (CAFE) Standards. Though the standards are intended to complement one another, they have distinct goals and structures. See our table below for a side-by-side comparison.

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CMU study finds small battery PHEVs and gasoline hybrids the least-cost policy solution to reducing gasoline consumption

Green Car Congress

Comparison of current federal subsidy to base case assumptions showing lifetime fuel savings (HomeEve charging scenario). An EPA estimate based on the Chevy Volt’s reported efficiency is also included for comparison. In all cases, HEVs and PHEVs save gasoline over conventional vehicles. Earlier post.).

Gasoline 308
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VW’s 1.0 TSI in the new up! GTI wins International Engine of the Year 2018 award in its category; Euro 6d-TEMP

Green Car Congress

The 85 kW / 115 PS gasoline-fired engine is the first of its kind to be combined with a four-way catalytic converter and installed in the up! It also comes with a gasoline particulate filter. With a pressure of 350 bar (high for a gasoline engine), the fuel mixture is injected directly into the combustion chambers.

2018 305
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Life cycle study calculates Algenols algae-to-ethanol process can deliver 67% to 87% reduction in carbon footprint compared to gasoline

Green Car Congress

They found that, on a life cycle basis in comparison to gasoline, the direct to ethanol technology can provide a 67% to 87% reduction in carbon footprint on an energy equivalent basis for initial ethanol concentrations (given in weight percent) ranging from 0.5% —Luo et al. Algenol algae. Click to enlarge. wt % to 5 wt %.

Carbon 246
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Study finds that environmental impact of corn-ethanol E85 is 23% to 33% higher than that of gasoline; environmental problem-shifting

Green Car Congress

Environmental impacts of gasoline and E85. The singular emphasis on energy balance and the carbon footprint neglects numerous other impacts associated with biofuels production including those related to irrigation, fertilizer application, and pesticide use for feedstock growth. Process flow diagrams for E85 and gasoline.

Gasoline 357