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In-Depth System-Level Energy Analysis of Hybrid Electrified Commuter Aircraft for Improved Energy Efficiency
Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
2023 (English)In: Proceedings of the 64th International Conference of Scandinavian Simulation Society, SIMS 2023 Västerås, Sweden, September 25-28, 2023 / [ed] Konstantinos G. Kyprianidis, Erik Dahlquist, Ioanna Aslanidou, Avinash Renuke, Gaurav Mirlekar, Tiina Komulainen, and Lars Eriksson, 2023Conference paper, Published paper (Refereed)
Abstract [en]

This work presents a comprehensive analysis of hybrid electric propulsion systems in commuter aircraft, aimed at enhancing energy efficiency. The study utilizes an aircraft conceptual design library, OpenConcept, to perform evaluations of various aircraft components and their interrelationships. The methodology integrates aerodynamics, propulsion, and mission analysis within a common framework to optimize the aircraft design. The analysis focuses on a 19-passenger commuter aircraft, employing a series/parallel hybrid-electric architecture. The gradient-based Sequential Least Squares Programming optimizer is utilized to optimize design variables such as battery weight, engine power, and the selected power ratios, while adhering to operational constraints. Through a rigorous Design of Experiments study, the paper highlights that even when considering the current battery technology, hybrid-electric propulsion yields substantial energy savings for short-haul missions. The fuel and energy consumption reductions are evident, particularly for shorter ranges. However, for extended missions, the critical role of advanced battery energy density is emphasized to achieve significant energy efficiency improvements. 

Place, publisher, year, edition, pages
2023.
Series
Linköping Electronic Conference Proceedings, ISSN 1650-3740 ; 200
National Category
Aerospace Engineering
Identifiers
URN: urn:nbn:se:mdh:diva-68194ISBN: 978-91-8075-348-7 (print)OAI: oai:DiVA.org:mdh-68194DiVA, id: diva2:1890055
Conference
64th International Conference of Scandinavian Simulation Society, SIMS2023, held at The Steam Hotel in Västerås, Sweden, during the period September 25–28, 2023
Available from: 2024-08-19 Created: 2024-08-19 Last updated: 2024-09-09Bibliographically approved
In thesis
1. Integrated Methodologies for Electrified Aircraft Design: From Conceptualization to Optimization
Open this publication in new window or tab >>Integrated Methodologies for Electrified Aircraft Design: From Conceptualization to Optimization
2024 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

This work explores the design and optimization of electrified configurations in aviation, focusing on the application and adaptation of these technologies across various aircraft classes. It utilizes a range of methodologies, including the development of a novel engine design approach, multi-disciplinary frameworks and the integration of surrogate modeling techniques, to enhance the conceptual design process and facilitate efficient exploration of complex design spaces.

This work demonstrates that electrified systems can significantly improve fuel efficiency and reduce emissions, particularly in short-haul applications where the current limitations of battery technology are less restrictive. The work identifies critical design trade-offs, such as the impact of battery weight on overall aircraft performance and the benefits of distributed propulsion systems in reducing aerodynamic drag and enhancing energy efficiency.

An uncertainty analysis further reveals the critical role of technological advancements in electrical powertrain components and their implications for the operational viability of electrified aircraft. The findings indicate that while near-term benefits can be achieved with current hybrid configurations, fully electrified aircraft will depend on future improvements in battery energy density and powertrain technologies.

Through these diverse methodologies and analyses, this work contributes to a deeper understanding of the challenges and opportunities in electrified aircraft design, offering insights that are crucial for advancing sustainable aviation.

Place, publisher, year, edition, pages
Västerås: Mälardalen University, 2024. p. 254
Series
Mälardalen University Press Dissertations, ISSN 1651-4238 ; 418
Keywords
Multi-disciplinary, Optimization, Electrified Propulsion, Uncertainty Analysis
National Category
Aerospace Engineering
Research subject
Energy- and Environmental Engineering
Identifiers
urn:nbn:se:mdh:diva-68386 (URN)978-91-7485-677-4 (ISBN)
Public defence
2024-11-08, Lambda, Mälardalens universitet, Västerås, 13:15 (English)
Opponent
Supervisors
Available from: 2024-09-10 Created: 2024-09-09 Last updated: 2024-10-10Bibliographically approved

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https://ecp.ep.liu.se/index.php/sims/article/view/759/664

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Diamantidou, Dimitra Eirini

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