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Generalised Methodology for Sizing of Air Vehicles with Hybrid-Electric Propulsion

Joksimović, Aleksandar and Carbonneau, Xavier and Crabé, Charline and Benichou, Emmanuel Generalised Methodology for Sizing of Air Vehicles with Hybrid-Electric Propulsion. (2019) In: NATO AVT-RSY-323 Research Symposium on Hybrid/Electric Aero-Propulsion Systems for Military Applications, 7 October 2019 - 9 October 2019 (Trondheim, Norway).

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Abstract

In the context of increasing attention given to aircraft propulsive system electrification by the aeronautical community, Department of Aerodynamics, Energetics and Propulsion at ISAE-SUPAERO is undertaking an effort to develop a preliminary sizing tool for aeroplanes with propulsive architectures ranging between conventional gas turbine and different hybrid-electric solutions. The baseline used to initiate this work is semi-empirical handbook sizing method by Jan Roskam. The method is firstly extended by introducing a generic propulsive power architecture space, described parametrically by an array of power hybridisation parameters. Furthermore, a proposal of modified Breguet range equation is given for fuel weight iterations including batteries. With these upgrades, a trial sizing run was performed on a Pilatus PC-12 test case to verify the functioning of the developed tool. A more comprehensive study of an equivalent aeroplane powered with various hybrid-electric solutions is then presented, along with an associated parametric study. Mission performance results of all the hybrid architectures are inferior to the ones for the fuel-based baseline, with the most promising solutions indicated by the results being series and parallel hybrid architectures. While the tool produces qualitatively coherent results, the quantitative validity thereof is yet to be ascertained. Notably, the hybrid range equation needs to be further placed under scrutiny and its applicability for mission sizing of all the hybrid architectures of interest is to be validated. In the long run, the work will look into other current limitations such as lack of possibility to consider battery recharge in the mission calculations or lack of capability to perform sensitivity studies.

Item Type:Conference or Workshop Item (Paper)
Additional Information:https://www.sto.nato.int/publications/STO%20Meeting%20Proceedings/STO-MP-AVT-323/MP-AVT-323-13.pdf
HAL Id:hal-03317612
Audience (conference):International conference proceedings
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Institution:Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
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Deposited On:06 Aug 2021 16:36

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