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Overview of NASA Electrified Aircraft Propulsion Research for Large Subsonic TransportsNASA is investing in Electrified Aircraft Propulsion (EAP) research as part of the portfolio to improve the fuel efficiency, emissions, and noise levels in commercial transport aircraft. Turboelectric, partially turboelectric, and hybrid electric propulsion systems are the primary EAP configurations being evaluated for regional jet and larger aircraft. The goal is to show that one or more viable EAP concepts exist for narrow body aircraft and mature tall-pole technologies related to those concepts. A summary of the aircraft system studies, technology development, and facility development is provided. The leading concept for mid-term (2035) introduction of EAP for a single aisle aircraft is a tube and wing, partially turbo electric configuration (STARC-ABL), however other viable configurations exist. Investments are being made to raise the TRL level of light weight, high efficiency motors, generators, and electrical power distribution systems as well as to define the optimal turbine and boundary layer ingestion systems for a mid-term tube and wing configuration. An electric aircraft power system test facility (NEAT) is under construction at NASA Glenn and an electric aircraft control system test facility (HEIST) is under construction at NASA Armstrong. The correct building blocks are in place to have a viable, large plane EAP configuration tested by 2025 leading to entry into service in 2035 if the community chooses to pursue that goal.
Document ID
20180000402
Document Type
Presentation
Authors
Jansen, Ralph H. (NASA Glenn Research Center Cleveland, OH, United States)
Bowman, Cheryl (NASA Glenn Research Center Cleveland, OH, United States)
Jankovsky, Amy (NASA Glenn Research Center Cleveland, OH, United States)
Dyson, Rodger (NASA Glenn Research Center Cleveland, OH, United States)
Felder, James L. (NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
January 16, 2018
Publication Date
July 10, 2017
Subject Category
Aircraft Propulsion and Power
Report/Patent Number
GRC-E-DAA-TN44409
Meeting Information
2017 AIAA Propulsion and Energy Forum(Atlanta, GA)
Funding Number(s)
WBS: WBS 081876.02.03.05.02.03
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Keywords
turbogenerator
hybrid propulsion
aircraft engines

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