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ORNL study finds best current use of natural gas for cars is efficient production of electricity for EVs

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However, they also noted, high PTW efficiencies and the moderate fuel economies of current compressed natural gas vehicles (CNGVs) make them a viable option as well. If CNG were to be eventually used in hybrids, the advantage of the electric generation/EV option shrinks. Their open access paper is published in the journal Energy.

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BMW provides an update on waste heat recovery projects; Turbosteamer and the Thermoelectric Generator

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The company says that some of the most promising projects are the Turbosteamer ( earlier post ); the Thermoelectric generator (TEG) ( earlier post ); engine encapsulation; and a waste heat exchanger for oil heating. Research project Turbosteamer: comparison of the heat exchanger generation 1 (top) and generation 2 (bottom).

Waste 376
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Toyota introducing new series of gasoline engines with gain of at least 10% fuel efficiency; up to 38% maximum thermal efficiency

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Toyota Motor Corporation has developed a new series of fuel-efficient gasoline engines that achieve improved thermal efficiency. Use of the Atkinson cycle provides an increased expansion ratio and reduces waste heat through a high compression ratio (13.5), resulting in superior thermal efficiency. Click to enlarge. Low friction.

Gasoline 273
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Lifecycle Analysis Finds Cellulosic Ethanol Produced by POETs Project LIBERTY Will Reduce GHG Emissions 111% Over Gasoline

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Cellulosic ethanol produced by grain ethanol producer POET’s Project LIBERTY ( earlier post ) first commercial cellulosic ethanol plant will reduce greenhouse gas emissions (GHG) by 111% relative to gasoline, an independent lifecycle analysis (LCA) compiled by Air Improvement Resource , Inc., Reduction of Gasoline. gCO 2 eq/MJ.

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Swiss WTW study finds important role for alternative fuels as well as alt drivetrains in move to low-emissions vehicles

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WTW energy demand and GHG emissions for EV and PHEV drivetrains for various electricity sources; gasoline ICE vehicle is solid square, hybrid the hollow square. First, it considers the performance of both mature and novel hydrogen production processes, multiple electricity generation pathways and several alternative drivetrains.

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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

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A team from Algenol and Georgia Tech calculated the life cycle energy and greenhouse gas emissions for three different system scenarios for this proposed ethanol production process, using process simulations and thermodynamic calculations. MJ/MJEtOH, and the net life cycle greenhouse gas emissions range from 29.8 wt % to 5 wt %.

Carbon 246
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Audi testing find e-ethanol and e-diesel produced by Joule often perform better than conventional counterparts

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Joule’s Helioculture platform uses engineered microorganisms directly and continuously to convert sunlight and waste CO 2 into infrastructure-ready fuels, including ethanol and hydrocarbons (n-alkanes) that serve as the essential chemical building blocks for diesel. Marlon Matthäus, “ Tankful Encounter ,” Encounter.online, January 2014.

Audi 285