EU sponsors research into high-bypass engine technologies

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European engine manufacturers and research institutes have started an EU-sponsored programme to develop future technologies for the low-pressure systems of ultra-high-bypass turbofans.

The objective for the four-year initiative dubbed ENOVAL – a contraction of "engine module validators" – is to develop fan, LP compressor, and turbine technology for medium to very large turbofans that will become available from 2025.

The new technologies are intended to cut carbon-dioxide emissions by 5% and reduce noise, says MTU, which co-ordinates the programme.

Among the 35 partners involved in the work are Avio, GKN, Rolls-Royce and Snecma, as well as universities and aerospace research institutes such as France’s ONERA and Germany’s DLR. The programme has a €45 million ($61 million) budget, nearly 60% of which is funded by the EU.

Attention will focus on ultra-high-bypass engines and cover both ducted, geared turbofans and open rotors. The planned powerplants should have bypass ratios of between 12:1 and 20:1, while overall pressure ratios are to range from 50:1 to 70:1.

"The project will provide novel technologies... to achieve or even surpass CO2 and noise level targets set by ACARE and the European Commission’s vision for aviation, Flightpath 2050," says MTU.