Simple hybrid propulsion model for hybrid aircraft design space exploration

Mathieu Belleville (1)

1 Airbus Operation S.A.S.

This article introduces a semi-empirical model for an electric fan and a minimalistic model for a turbofan. The electric fan model provides an easy selection of optimal characteristics based on power loading. The turbofan model has provision for power extraction, and exhibit a physical behaviour. These two models allowed exploring the performance of a hybrid-electric aircraft featuring two turbofans under the wing and one electric fan at the rear of the fuselage. Associated with a proper energy management, such a hybrid aircraft may prove to be competitive if the power to weight ratio of the electric machines reaches 8 kW/kg and the energy density of the batteries reaches 540 Wh/kg.

Mots clés: Propulsion Hybride; Turbomachine aéronautique; Modelisation; Propulsion électrique

Domaines: Infrastructures de transport; Energie électrique; Autre

Mathieu Belleville. Simple hybrid propulsion model for hybrid aircraft design space exploration. MEA 2015, Feb 2015, Toulouse, France. , 2015. ⟨hal-01120080⟩