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Biofuels reduce engine pollution, NASA Study
Biofuels reduce engine pollution, NASA Study

Biofuels reduce engine pollution, NASA Study

A study from NASA has found that jet engines running on biofuels can reduce particle emissions by between 50 and 70 per cent.

Its research concluded particle emissions from plane exhausts can be greatly decreased by using a 50:50 blend of aviation fuel and a renewable alternative produced from plant oil.

As well as cutting Carbon Dioxide emissions, the mix also saw a significant reduction in contrails, the long traces of ice crystals left in the sky behind planes.

Researchers believe contrails and the cirrus clouds they create have had a larger impact on Earth’s atmosphere than all aviation related Carbon Dioxide emissions since the first ever powered flight.

Bruce Anderson, Project Scientist at NASA’s Langley Research Center, said: “Soot emissions also are a major driver of contrail properties and their formation.

“As a result, the observed particle reductions we’ve measured should directly translate into reduced ice crystal concentrations in contrails, which in turn should help minimise their impact on Earth’s environment.”

NASA now plans to demonstrate the benefits of biofuels on its proposed supersonic ‘X-plane’.

The first commercial flight powered by a wood-waste biofuel took place last year.

Agencies/Canadajournal




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