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Feasibility of Electrified Propulsion for Ultra-Efficient Commercial Aircraft Final ReportMIT, Aurora Flight Sciences, and USC have collaborated to assess the feasibility of electric, hybridelectric, and turbo-electric propulsion for ultra-efficient commercial transportation. The work has drawn on the team expertise in disciplines related to aircraft design, propulsion-airframe integration, electric machines and systems, engineering system design, and optimization. A parametric trade space analysis has been carried out to assess vehicle performance across a range of transport missions and propulsion architectures to establish how electrified propulsion systems scale. An optimization approach to vehicle conceptual design modeling was taken to enable rapid multidisciplinary design space exploration and sensitivity analysis. The results of the analysis indicate vehicle aero-propulsive integration benefits enabled by electrification are required to offset the increased weight and loss associated with the electric system and achieve enhanced performance; the report describes the conceptual configurations than can offer such enhancements. The main contribution of the present work is the definition of electric vehicle design attributes for potential efficiency improvements at different scales. Based on these results, key areas for future research are identified, and extensions to the trade space analysis suitable for higher fidelity electrified commercial aircraft design and analysis have been developed.
Document ID
20190033478
Document Type
Contractor Report (CR)
Authors
Hall, D.K. (Massachusetts Institute of Technology (MIT) Cambridge, MA, United States)
Greitzer, E.M. (Massachusetts Institute of Technology (MIT) Cambridge, MA, United States)
Dowdle, A.P. (Massachusetts Institute of Technology (MIT) Cambridge, MA, United States)
Gonzalez, J.J. (Massachusetts Institute of Technology (MIT) Cambridge, MA, United States)
Hoburg, W.W. (Massachusetts Institute of Technology (MIT) Cambridge, MA, United States)
Lang, J.H. (Massachusetts Institute of Technology (MIT) Cambridge, MA, United States)
Sabnis, J.S. (Massachusetts Institute of Technology (MIT) Cambridge, MA, United States)
Spakovszky, Z.S. (Massachusetts Institute of Technology (MIT) Cambridge, MA, United States)
Yutko, B. (Aurora Flight Sciences, Inc. Cambridge, MA, United States)
Courtin, C. (Aurora Flight Sciences, Inc. Cambridge, MA, United States)
Thalheimer, W. (Aurora Flight Sciences, Inc. Cambridge, MA, United States)
Trollinger, L. (Aurora Flight Sciences, Inc. Cambridge, MA, United States)
Tylko, J. (Aurora Flight Sciences, Inc. Cambridge, MA, United States)
Varney, N. (Aurora Flight Sciences, Inc. Cambridge, MA, United States)
Uranga, A. (University of Southern California (HQ) Los Angeles, CA, United States)
Byahut, S. (University of Southern California (HQ) Los Angeles, CA, United States)
Kruger, M. (University of Southern California (HQ) Los Angeles, CA, United States)
Date Acquired
December 12, 2019
Publication Date
December 1, 2019
Subject Category
Aircraft Propulsion and Power
Report/Patent Number
GRC-E-DAA-TN72076
NASA/CR—2019-220382
Funding Number(s)
CONTRACT_GRANT: NNX16AK25A
WBS: 081876.02.03.10.01
Distribution Limits
Public
Copyright
Public Use Permitted.

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