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WUSTL researchers demonstrate solar-panel-powered microbial electrosynthesis to produce n-butanol from light, CO2 and power

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A team of biologists and engineers modified Rhodopseudomonas palustris TIE-1 (TIE-1) so that it can produce a biofuel using only three renewable and naturally abundant source ingredients: carbon dioxide, solar panel-generated electricity and light. Louis have discovered a new way to train microbes to make n -butanol.

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Insight into benzene formation could help development of cleaner combustion engines

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That insight could also help the car industry make cleaner combustion engines. The industrial processes behind crude oil refineries and the inner-workings of gas-powered combustion engines can emit PAHs, which can form into toxic air pollutants such as soot. Zhao et al. This work was supported by the DOE Office of Science.

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Argonne study finds BEVs can have lowest scheduled maintenance costs, but highest cost of driving

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The study considers five different powertrains (internal combustion engine, hybrid-electric, plug-in hybrid-electric, fuel-cell-electric, and battery-electric) and 12 cost components (purchase cost, depreciation, financing, fuel, insurance, maintenance, repair, taxes, registration fees, tolls and parking, payload capacity and labor).

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

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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.

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EPA to maintain light-duty vehicle GHG standards unchanged through 2025

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In an expected ruling, US Environmental Protection Agency (EPA) Administrator Gina McCarthy finalized her decision to maintain the current greenhouse gas (GHG) emissions standards for model years 2022-2025 cars and light trucks. Top: Footprint-based CO 2 (g/mile) light truck standards curves. Earlier post.) Click to enlarge.

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Argonne study identifying fuel consumption penalties for CNG use in conventional light-duty vehicles; optimization pathways

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Light-duty vehicle fuel economy penalties for CNG in conventional engines, with and without scaling for performance equivalence. the CNG-fueled engine has lower performance) and up to a 12% fuel consumption penalty when the engine is resized (i.e., “up-sizing”) seconds for gasoline. seconds for gasoline.

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Cummins introduces 5L V8 diesel for North American light- and medium-duty commercial vehicles

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a new 5-liter V8 diesel engine designed to power pickup-and-delivery vehicles, other light- and medium-duty trucks, school buses and motorhomes. extends Cummins range of on-road diesel engines for North American vehicles. —Dave Crompton, Cummins Vice President and General Manager – Engine Business. The new ISV 5.0

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