BAUHAUS LUFTFAHRT UNVEILS COMPOSITE CYCLE ENGINE

May 02, 2018

Once again, Bauhaus Luftfahrt, the futurologists from Munich have a lot of innovative food for thought and discussion in their luggage, which has the potential to fundamentally change the air transport system. On 43 square metres, the think tank not only presents its own technological concepts and operational solutions (see below), but also provides scientific answers to the central future questions of aviation, amongst others: What drives the mobility of tomorrow? What alternative energy options will be available for aviation in the long term? Which power and system technologies will further improve the efficiency of future aircraft concepts? Plus, what impact will information technologies have on future products and their development processes? Bauhaus Luftfahrt is also breaking new ground with its booth concept: The focus is on a 60-centimetre diameter, touchable globe, on which visitors can interactively discover the entire world of aviation research.
The Composite Cycle Engine (CCE) concept incorporates piston engines into the core of an aircraft turbo engine. The piston engines increase thermal efficiency by using non-stationary isochoric-isobaric combustion, which enables higher peak pressures and temperatures within the core engine. In the current design, the piston engine is connected with the high-pressure spool and powers the axial-radial high-pressure compressor. The low-pressure system is similar to a conventional geared turbofan (GTF) architecture. This way, the outstanding power-to-weight ratio of low-pressure turbines can be fully utilised and an ultra-high bypass ratio is realised. Assuming an entry into service in 2050, fuel burn improvements up to 50 per cent relative to year 2000 turbofan technology (11 per cent relative to year 2050 advanced GTF technology, respectively) can be reached.