Abstract
Nowadays, worldwide environmental issue, associated to reduction of pollutant and greenhouse emissions are gaining considerable attention. Aviation sector contribution to the whole CO2 released accounts to around 2%, but it is expected to grow in the next future due to increase of demand. Probably, combustion engine design and fuel efficiency have already reached their optimum technology level and only a breakthrough as hybrid-electric propulsion could be able to satisfy the new international more demanding requirements. However, an improvement of the technology readiness level of hybrid-electric propulsion is strongly necessary and many operational and safety challenges should be addressed. In the work here reported, a hybrid-electric model was designed and developed for general aviation aircrafts, by means of the Mathworks® Matlab – Simulink 1D/0D simulation environment. Both thermal and electric energy storage units, transmission systems and power management devices were considered and the overall performances were evaluated during cruise phase and a conventional training mission, characterized by several run(lap) “touch-and-go”. Furthermore, an innovative mathematical methodology was implemented for battery pack discharge profile interpolation. Finally, reliability and accuracy of the new proposed model were evaluated through comparison with the commercial code Simcenter AMESim® software and an average bias only equal to 5% was achieved.
Highlights
Future Sky (FS) is a Joint Research Initiative of the Association of European Research Establishments in Aeronautics (EREA) devoted to preparing key technologies and capabilities for a green and seamless air transport in Europe
The main goal of the modelling task was to design and develop a software - SW environment able to predict the performances of hybrid-electric propulsion systems of general aviation - GA aircrafts for assigned mission profiles
In a serial configuration of hybrid-electric propulsion system, ICE can be used as range extender, while for a parallel architecture battery pack was sized with the average power and all the possible load oscillations are addressed by ICE
Summary
Future Sky (FS) is a Joint Research Initiative of the Association of European Research Establishments in Aeronautics (EREA) devoted to preparing key technologies and capabilities for a green and seamless air transport in Europe. Within Future Sky, EREA promotes joining forces with the European industry and universities to design a new air transport system allowing environmentally friendly, smooth and efficient air vehicles and associated mobility. In order to design a system able of fulfilling the Flight-Path 2050 - FP2050 goals, Future Sky Energy intends to address innovative vehicles in the class of Small Aircrafts (range of 4-19 seats), Regional Aircrafts (19-75 seats) and Short-Medium Range Aircrafts (around 200 seats), with the aim of reducing the aviation environmental impact by means of breakthrough propulsion systems. The main goal of the modelling task was to design and develop a software - SW environment able to predict the performances of hybrid-electric propulsion systems of general aviation - GA aircrafts for assigned mission profiles. Tecnam P2010 [1] airplane was considered
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