Research on Composite Cycle Engine receives best paper award
The conference paper “A Composite Cycle Engine Concept with Hecto-Pressure Ratio” at the AIAA Propulsion and Energy Forum 2015 received the best paper award in the category “Gas Turbine Engines”. The paper presents a novel engine concept that synergistically combines the advantages of modern turbo machines with piston engines.
In the core of the engine, twelve piston engines drive 24 compressor pistons in a self-contained unit. The piston units are implemented in three V12 engines around the core of the engine. In the pistons, peak pressure ratios over 300 are reached, compared to about 60 in current turbofans. Fuel consumption reduces by 15 % and nitrous oxide emission by 10 % in this way, compared to a turbofan of similar technology standard. Engine weight increases by only 30 %, as thrust is still produced by a large turbofan driven by a turbine. Additionally, a turbo compressor charges the piston system in order to reduce its size and weight.
The work was composed by Sascha Kaiser (Bauhaus Luftfahrt), Dr. Stefan Donnerhack (MTU Aero Engines), Dr. Anders Lundbladh (GKN Aerospace), and Dr. Arne Seitz (Bauhaus Luftfahrt). Technical contents were prepared in the EU-funded project LEMCOTEC (Low EMissions COre-Engine TEChnologies) in the work package “Future Core Concept Studies”.
In this context, the work was again presented at the LEMCOTEC M54 review meeting in Prague and received an award of excellence.
The piston system operates in the centre of the engine, where it delivers the highest benefits: at high pressures and temperatures.