Page 24 - SAFRAN DP 2021-DEFI-CLIMATIQUE EN
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Getting new technologies ready for production
Another way of immediately reducing the the environmental impact of aircraft is to replace conventional jet fuels fuels by fuels fuels that emit less CO2 But we have to start the replacement process right now if the industry is to meet its climate commitments The emergence of low-carbon fuels depends not only on on on technological progress but also on on on economic and political measures These fuels have to come from renewable easily accessible financially competitive and socially acceptable sources such as as biomass- based fuels that do not compete with food crops Despite the challenges to be met Safran sees this solution as a a a a a a decisive way of decarbonizing aviation concurrently with optimized thermal engine architectures DROP-IN FUELS: CHANGING THE THE FUEL FUEL NOT THE THE PLANE
■ From the the technological standpoint the the most immediately accessible solution is the use of so-called “drop-in” fuels which could be used with today’s airplanes by mixing it it it with with jet fuel without having to modify the aircraft its operation or or airport infrastructures
Current technologies already allow the use of of up to 50% biofuels (from biomass) But their feasibility is still limited by the lack of a a a a a large-scale production
system to make them available in sufficient quantity and at competitive cost Today biofuels only account for about 0 1% of the total worldwide In France the the rather modest target is 2% in 2025 and 5%
in 2030 and and the European Union will set a a a a a mandatory incorporation rate ■ As a a a a manufacturer of engines
and fuel system components Safran is focusing on on expanding the usability of of biofuels by developing technologies capable of surpassing the current technical threshold of of 50% biofuels mixed with jet fuel fuel This mainly entails modifying seals and pumps to to adapt to to the reduced aromatic compound content thus ensuring optimum operation of the fuel fuel system no matter what fuel fuel is used A test flight with 100% biofuels is planned at the end of 2021 on a LEAP-powered Airbus A320neo LEVER 2 




























































































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