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Assessing Environmental Benefits of Electric Aircraft Taxiing through Object-Oriented Simulation

Re, Fabrizio (2012) Assessing Environmental Benefits of Electric Aircraft Taxiing through Object-Oriented Simulation. SAE International Journal of Aerospace, 5 (2). Society of Automotive Engineers (SAE) International. doi: 10.4271/2012-01-2218. ISSN 1946-3855.

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Official URL: http://saeaero.saejournals.org/content/5/2/503.abstract


A number of promising technologies to perform ground movements without main engines are currently being researched. Notably, on-board ground propulsion systems have been proposed featuring electric motors in the landing gear. While such on-board systems will help save fuel and avoid emissions while on ground, they add significant weight to the aircraft, which has an impact on the performances in flight. A tool to assess the global benefits in terms of fuel consumption and emissions is presented in this work. A concept of an aircraft-integrated ground propulsion system is firstly considered and its performances and weights are determined, assuming the Auxiliary Power Unit or a zero-emission device like a fuel-cell as power source for the system. Afterwards, a model of the propulsion system integrated into an object-oriented, mid-sized aircraft model is generated, capable of precisely simulating a whole aircraft mission. Two different gate-to-gate flights with realistic trajectories are simulated with a conventional aircraft and one equipped with a ground propulsion system. Finally, the emissions and fuel consumptions are compared in each flight phase. The results show a potential overall fuel saving of up to 2.6%, depending on the flight mission and the duration of the taxi phases. The associated CO2 emission may decrease by the same amount. Furthermore, NOx, CO, and HC emissions on ground using an electrical taxiing system might be reduced by 64% to 80% compared to conventional ground operations. In conclusion, the aircraft model used in this work has proved a powerful tool to assess the performances of an electrical taxiing system and to compare different real-world scenarios.

Item URL in elib:https://elib.dlr.de/78462/
Document Type:Article
Title:Assessing Environmental Benefits of Electric Aircraft Taxiing through Object-Oriented Simulation
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Re, Fabriziofabrizio.re (at) dlr.deUNSPECIFIED
Date:December 2012
Journal or Publication Title:SAE International Journal of Aerospace
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.4271/2012-01-2218
Publisher:Society of Automotive Engineers (SAE) International
Keywords:Electric Taxiing Systems, Aircraft Ground Dynamics, Electric Landing Gear, Modelling and Simulation
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Systems & Cabin (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of System Dynamics and Control > Aircraft System Dynamics
Deposited By: Re, Fabrizio
Deposited On:19 Nov 2012 13:50
Last Modified:14 Dec 2019 04:21

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