powerpoint presentation...boeing sugar volt (737–800 like baseline, 900 nm) • ~60% fuel burn...
TRANSCRIPT
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Novel aircraft technological concepts
Jim Heidmann,
Manager, Advanced Air Transport Technology (AATT) Project – NASA
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Representative Benefits from NASA N+3 (Far Term) Concept Studiesnote: subsequent NASA studies have predicted varying benefits – assessments continue
Boeing SUGAR High (737–800 like baseline, 900 nm)
• ~56% fuel burn/energy/CO2 reduction with conventional fuel
Boeing SUGAR Volt (737–800 like baseline, 900 nm)
• ~60% fuel burn reduction, ~54% energy use reduction, Life-cycle CO2 reduction dependent on electricity source
Boeing N+4 SUGAR Freeze Hybrid UDF (737–800 like baseline, 900 nm)
• ~64% fuel weight (LNG vs. baseline with Jet-A), ~60% energy use reduction, ~68% CO2 reduction
MIT D8.6 (737–800 like baseline)
• ~66% fuel burn/energy/CO2 reduction with conventional fuel
N3–X (Boeing 777–200 like baseline)
• ~70% fuel burn/energy/CO2 use reduction with conventional fuel
Advanced concept studies for commercial subsonic transport aircraft for 2030-35 EIS
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Propulsion System Trends for Single-Aisle Thrust Class(Results From NASA In-house Benefit Assessments)
(Engines Sized for Approximately Same Thrust)
- SFC reductions possible through higher OPRs, turbomachinery eff. gains, advanced cooling schemes and increased propulsive efficiency (i.e., lower FPR)
- Challenge to maintain high component efficiencies at smaller engine core size
- Engine weight/diameter increases will limit the fuel burn reductions that are achievable in practice
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Copyright © ICAO 2020. All rights reserved
Technology
CO2 reductionsper flight
Level offinance required
Timeframe
Main challenges
Transonic truss-braced wing concept with high efficiency small core engines and potential electrification of propulsion system, supported by high rate composite manufacturing
Next Generation Single-Aisle Transport
60%Relative to 2005
best-in-class
TBD
• Unique airframe / propulsion system certification
• Cost of advanced technology• High rate manufacturing
2032
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Thank You