Audi’s glass engine is a literal window into how its synthetic new ‘e-fuels’ burn (from DigitalTrends)

Audi e-fuels glass engine
What better way to see if your new fuel is clean than to run it through a glass engine?

That’s exactly what Audi did with its new synthetic “e-fuels.” The German automaker says the new fuels performed better than their conventional counterparts. They presumably left fewer stains as well.

Actually, this unusual testing procedure was just a bit of common sense. Researchers were able to look through a quartz glass window in an engine’s cylinder, allowing Audi engineers to see exactly how the fuel was behaving under typical operating conditions.

Audi also put its e-fuels into a pressure chamber set to 15 bar, with an internal temperature of around 662 degrees Fahrenheit to simulate the conditions of combustion.

The carmaker claims its synthetic fuels’ more-consistent composition results in cleaner combustion than gasoline or diesel. That means fewer emissions, which is why Audi hopes to make e-fuel another pillar of its green-car strategy.

While Audi has primarily pushed diesel cars as its green vehicles of choice, it was also attempted to hedge its bet with electrified vehicles like the R8 e-tron supercar and A3 e-tron plug-in hybrid, as well as the natural-gas powered A3 g-tron.

Read more: http://www.digitaltrends.com/cars/audi-tests-clean-fuels-glass-engine/#ixzz2sLWuNFVq

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