Print Email Facebook Twitter Cross-Validation of Hybrid-Electric Aircraft Sizing Methods Title Cross-Validation of Hybrid-Electric Aircraft Sizing Methods Author Finger, D. Felix (FH Aachen University of Applied Sciences) de Vries, R. (TU Delft Flight Performance and Propulsion; TU Delft Flow Physics and Technology) Vos, Roelof (TU Delft Flight Performance and Propulsion) Braun, Carsten (FH Aachen University of Applied Sciences) Bil, Cees (Royal Melbourne Institute of Technology University) Department Flow Physics and Technology Date 2022 Abstract The number of studies on hybrid-electric aircraft is steadily increasing because these configurations can lead to lower operating costs and environmental impact than traditional aircraft. However, due to the lack of reference data of actual hybrid-electric aircraft, the design tools and results are difficult to validate. This paper analyzes the key points that must be validated when developing or implementing a hybrid-electric aircraft design tool by contrasting the assumptions and results of two independently developed sizing methods. An existing 19-seat commuter aircraft is selected as the baseline test case, and both design tools are used to size that aircraft. The aircraft is then resized under consideration of hybrid-electric propulsion technology. This is performed for parallel, serial, and fully electric powertrain architectures. Finally, sensitivity studies are conducted to assess the validity of the basic assumptions and approaches regarding the design of hybrid-electric aircraft. Both methods are found to predict the maximum takeoff mass (MTOM) of the reference aircraft with less than 4% error. The MTOM and payload-range energy efficiency of various (hybrid-) electric configurations are predicted with a maximum difference of approximately 2 and 5%, respectively. The results of this study confirm a correct formulation and implementation of the two methods and provide a reference data set that can be used to benchmark design tools. To reference this document use: http://resolver.tudelft.nl/uuid:28fa1852-3ce2-47b4-b28b-d3ab678e1fab DOI https://doi.org/10.2514/1.C035907 ISSN 0021-8669 Source Journal of Aircraft: devoted to aeronautical science and technology, 59 (3), 742-760 Part of collection Institutional Repository Document type journal article Rights © 2022 D. Felix Finger, R. de Vries, Roelof Vos, Carsten Braun, Cees Bil Files PDF 1.C035907.pdf 825.1 KB Close viewer /islandora/object/uuid:28fa1852-3ce2-47b4-b28b-d3ab678e1fab/datastream/OBJ/view