C. Zumegen, P. Strathoff, E. Stumpf

The emissions of CO2 and NOX and costs are the most important evaluation parameters of novel aircraft propulsion systems. They are consequently considered in a holistic analysis of the electrification of 9- to 50-seater aircraft in the project GNOSIS. Within the project, a partial turboelectric commuter aircraft with 19 seats and electrically driven wingtip propellers was designed in the conceptual aircraft design tool MICADO. The effect of important design parameters (wing aspect ratio, cruise speed and altitude and propeller diameter) on the emissions and costs are presented in this paper. To estimate the life cycle costs of the partial turboelectric aircraft, new cost relationships are derived from existing data in the literature. Even though the wingtip propellers increase the maximum lift to drag ratio of the partial turboelectric aircraft in cruise, the emissions of the unchanged configuration increase by 0.46% relative to the reference aircraft in a year 2025 scenario. Because different wing aspect ratios, cruise speeds and cruise altitudes lead to the similar effects on the emissions of the conventionally driven and the partial turboelectric aircraft, the electrified aircraft shows no advantages in terms of emission reduction over the conventional aircraft. The additional powertrain components in the partial turboelectric aircraft lead to a moderate change of the total operating costs (-0.29% to 1.57 %), the recurring costs ( 2.07% to 3.46 %) and non-recurring costs ( 1.24% to 2.51 %).

Deutscher Luft- und Raumfahrtkongress 2022, Dresden

Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V., Bonn, 2023

Conference Paper

englisch

21,0 x 29,7 cm, 9 Seiten

urn:nbn:de:101:1-2023010614162840895094

10.25967/570139

commuter aircraft, electrification, CO2 and NOX emissions, life cycle costs

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Zumegen, C.; Strathoff, P.; Stumpf, E. (2023): Parameter Studies on Emissions and Costs of a Partial Turboelectric Commuter Aircraft. Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V.. (Text). https://doi.org/10.25967/570139. urn:nbn:de:101:1-2023010614162840895094.

06.01.2023