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Evaluation of the Hybrid-Electric Aircraft Project Airbus E-Fan X

Diego Benegas Jayme

Abstract
Purpose - This master thesis evaluates the hybrid-electric aircraft project E-FAN X with respect to its economical and environmental performance in comparison to its reference aircraft, the BAe 146-100. The E-FAN X is replacing one of the four jet engines of the reference aircraft by an electric motor and a fan. A turboshaft engine in the cargo compartment drives a generator to power the electric motor. --- Methodology - The evaluation of this project is based on standard aircraft design equations. Economics are based on Direct Operating Costs (DOC), which are calculated with the method of the Association of European Airlines (AEA) from 1989, inflated to 2019 values. Environmental impact is assessed based on local air quality (NOx, Ozone and Particulate Matter), climate impact (CO2, NOx, Aircraft-Induced Cloudiness known as AIC) and noise pollution estimated with fundamental acoustic equations. --- Findings - The battery on board the E-FAN X it is not necessary. In order to improve the proposed design, the battery was eliminated. Nevertheless, due to additional parts required in the new configuration, the aircraft is 902 kg heavier. The turboshaft engine saves only 59 kg of fuel. The additional mass has to be compensated by a payload reduced by 9 passengers. The DOC per seat-mile are up by more than 10% and equivalent CO2 per seat-mile are more than 16% up in the new aircraft. --- Research limitations - Results are limited in accuracy by the underlying standard aircraft design calculations. The results are also limited in accuracy by the lack of knowledge of some data of the project. --- Practical implications - The report contributes arguments to the discussion about electric flight. --- Social implications - Results show that unconditional praise given to the environmental characteristics of this industry project are not justified.

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Date:2019-06-30
Type of work: Master Thesis
Advisor / Examiner:Dieter Scholz
Published by:Aircraft Design and Systems Group (AERO), Department of Automotive and Aeronautical Engineering, Hamburg University of Applied Sciences
This work is part of:transparent pin for text alignment Digital Library - Projects & Theses - Prof. Dr. Scholz --- http://library.ProfScholz.de pin
 
PERSISTENT IDENTIFIER:
URN: https://nbn-resolving.org/urn:nbn:de:gbv:18302-aero2019-06-30.012 (to reach this page)
DOI:https://doi.org/10.15488/9353
ARK:https://n2t.net/ark:/13960/t8hf6bt9n
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Keywords, German (GND): Luftfahrt,   Luftfahrzeug,   Elektroantrieb,   Flugmechanik
Keywords, English (LCSH): Aeronautics,   Airplanes,   Electric propulsion,   Airplanes--Performance
Keywords, free: Betriebskosten, Kraftstoffverbrauch, Luftverschmutzung, Fluglärm, Projektbewertung, Technikbewertung, Flugtriebwerk, Entwurf, Cost accounting, Airplanes--Fuel consumption, Environmental protection, Airplanes--Noise, Evaluation, Airbus, E-Fan X
DDC: 629.13,    629.1341,    629.132,    621.46
RVK: ZO 7205

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E-Mail see: http://www.ProfScholz.de

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BENEGAS JAYME, Diego, 2019. Evaluation of the Hybrid-Electric Aircraft Project Airbus E-Fan X. Master Thesis. Hamburg University of Applied Sciences, Aircraft Design and Systems Group (AERO). Available from: https://nbn-resolving.org/urn:nbn:de:gbv:18302-aero2019-06-30.012 [viewed YYYY-MM-DD].

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LAST UPDATE:  12 December 2021
AUTHOR:  Prof. Dr. Scholz
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