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1 - Benefits of Electrified Propulsion for Large Aircraft

Published online by Cambridge University Press:  11 May 2022

By
Rodger Dyson ,
Ralph Jansen  and
Nateri Madavan
Edited by
Kiruba Haran ,
Nateri Madavan  and
Tim C. O'Connell
Kiruba Haran
Affiliation:
University of Illinois, Urbana-Champaign
Nateri Madavan
Affiliation:
NASA Aeronautics Mission Directorate, NASA
Tim C. O'Connell
Affiliation:
P.C. Krause & Associates
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Summary

The electrical systems in turboelectric and hybrid-electric aircraft provide unmatched flexibility, coupling the power turbines to the fan propulsors and facilitating tight propulsion system-airframe integration. Reduced noise, emissions, and fuel burn result. However, the associated weight and efficiency penalties offset these benefits. Luckily, studies have shown significant aerodynamic improvements from electrically sourcing a small fraction of propulsive power. Partially turboelectric and hybrid-electric propulsion systems provide an intermediate step between conventional turbofan and fully turboelectric or all-electric architectures. This chapter details the benefits of electrified propulsion for large aircraft, using numerous trade studies and analyses of concept vehicles. It presents a first-order breakeven analysis that reveals key electrical power system requirements, providing a framework for comparing electric drive system performance factors, such as electrical efficiency, in the context of electrified and traditional propulsion systems. This can guide electrical system component research and provide aircraft designers with rational component expectations.

Keywords

breakeven analysisSTARC-ABLN3-XPEGASUSturboelectrichybrid electricall electricbypass ratioboundary layer ingestionlift-to-drag ratio
Type
Chapter
Information
Electrified Aircraft Propulsion
Powering the Future of Air Transportation
 , pp. 1 - 28
Publisher: Cambridge University Press
Print publication year: 2022

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References

Jansen, R. H. et al., “Turboelectric aircraft drive key performance parameters and functional requirements,” presented at the 51st AIAA/SAE/ASEE Joint Propulsion Conf., Reston, VA, 2015, Paper AIAA 2015-3890.Google Scholar
Jansen, R. H., Duffy, K. P., and Brown, G. V., “Partially turboelectric aircraft drive key performance parameters,” presented at the 53rd AIAA/SAE/ASEE Joint Propulsion Conf., Atlanta, GA, 2017, Paper AIAA 2017-4702.Google Scholar
Felder, J. L. et al., “Turboelectric distributed propulsion engine cycle analysis for hybrid-wind-body aircraft,” presented at the 47th AIAA Aerosp. Sci. Mtg., Orlando, FL, 2009, Paper AIAA 2009-1132.Google Scholar
Brown, G. V., “Weights and efficiencies of electric components of a turboelectric aircraft propulsion system,” presented at the 49th AIAA Aerosp. Sci. Mtg., Orlando, FL, 2011, Paper AIAA 2011-225.Google Scholar
Felder, J. L. et al., “Turboelectric distributed propulsion in a hybrid wind body aircraft,” presented at the 20th Intl. Soc. for Airbreathing Engines Meeting, Gothenburg, Sweden, 2011, Paper ISABE-2011-1340.Google Scholar
Wick, A. T. et al., “Integrated aerodynamic benefits of distributed propulsion,” presented at the 53rd AIAA Aerosp. Sci. Mtg., Kissimmee, FL, 2015, Paper AIAA 2015-1500.Google Scholar
Jansen, R. H., Bowman, C., and Jankovsky, A., “Sizing power components of an electrically driven tail cone thruster range extender,” presented at the 16th AIAA Aviation, Tech., Integration, and Ops. Conf., Washington, DC, 2016, Paper AIAA 2016-3766.Google Scholar
Dever, T. P. et al., “Assessment of technologies for noncryogenic hybrid electric propulsion,” NASA, Cleveland, OH, Tech. Rep. GRC-E-DAA-TN10454, 2015.Google Scholar
Welstead, J. and Felder, J. L., “Conceptual design of a single-aisle turboelectric commercial transport with fuselage boundary layer ingestion,” presented at the 54th AIAA Aerospace Sci. Meeting, San Diego, CA, 2016, Paper AIAA 2016-1027.CrossRefGoogle Scholar
Antcliff, K. R. and Capristan, F. M., “Conceptual design of the parallel electric-gas architecture with synergistic utilization scheme (PEGASUS) concept,” presented at the 18th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conf., Denver, CO, 2017, Paper AIAA 2017-4001.Google Scholar
Antcliff, K. R. et al., “Mission analysis and aircraft sizing of a hybrid-electric regional aircraft,” presented at the 54th AIAA Aerosp. Sci. Mtg., San Diego, CA, 2016, Paper AIAA 2016-1028.CrossRefGoogle Scholar
Hepperle, M., “Electric flight – potential and limitations,” presented at the Energy Efficient Tech. and Concepts of Operation Workshop, Lisbon, Portugal, 2012, Paper STO-MP-AVT-209.Google Scholar

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