Categories

A sample text widget

Etiam pulvinar consectetur dolor sed malesuada. Ut convallis euismod dolor nec pretium. Nunc ut tristique massa.

Nam sodales mi vitae dolor ullamcorper et vulputate enim accumsan. Morbi orci magna, tincidunt vitae molestie nec, molestie at mi. Nulla nulla lorem, suscipit in posuere in, interdum non magna.

eConcept – EADS’s Hybrid-Electric Airliner

Anxious to assure us it is not entirely anchored in the now by Airbus, EADS at Paris unveiled a distributed hybrid-electric propulsion concept it is working on with engine manufacturer Rolls-Royce. The idea is similar to the turboelectric distributed propulsion (TeDP) work under way at NASA. EADS Innovation Works has incorporated the initial E-Thrust distributed propulsion configuration into its eConcept vision for a 2050-timeframe airliner.

Concepts: EADS Innovation Works

The EADS IW concept uses a single large turbine engine to generate electricity to power six ducted fans that provide thrust. This allows propulsive and thermal efficiency to be optimized separately. The turbine engine can be optimized for thermal efficiency (turning fuel into shaft power) while the ducted fans increase effective bypass ratio and therefore propulsion efficient (turning shaft power into thrust).

The single turbine engine is embedded in the tail so that it ingests the fuselage boundary layer and re-energizes the wake to reduce drag. It has a long exhaust duct to minimize noise and allow for particle filtration. The electric fans have a combined bypass ratio exceeding 20:1 (more than twice today’s engines) and are integrated into the wing to reduce drag and noise
More aviationweek.com

Share

Leave a Reply