Preliminary analysis of Hybrid-Electric propulsion system integrated in a regional aircraftt

Aeroengine manufacturers must continuously develop new high-performance engines, in terms of both specific fuel consumption and pollutant emissions. During the combustion of kerosene, CO2 and lower amounts of SO2, CO, NOx and hydrocarbons are produced; those gases are directly or indirectly responsible for greenhouse effect. Large emission of NOx is produced by engines during the aircraft operation in airport. In the near future, the target in Europe for the aviation sector provides a reduction of SO% of NOx and 50% of CO2. For this reason, the hybrid-electric propulsion systems (HEPS) are becoming a viable alternative propulsion technology in the field of aviation, useful to guarantee a massive reduction of pollution. In the paper, the authors analyze and simulate a hybrid turbine/electric engine for a passengers regional aircraft, comparing the results in terms of pollutant and fuel consumption with the conventional thermal engine ones.