NASA Technical Reports Server (NTRS) 20110011739: Environmentally Responsible Aviation (ERA) Project: Assessing Progress Toward Simultaneous Reductions in Noise, Fuel Burn and NOx

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by  NASA Technical Reports Server (NTRS)

National Aeronautics and Space Administration
Environmentally Responsible Aviation (ERA) Project
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Burn and NOx
Craig Nickol
VSI Systems Analysis Element Lead
Environmentally Responsible Aviation
(ERA) Project, NASA
Topics Addressed
• ERA Project Metrics Evolution
• EERRAA PPoorrttffoolliioo AAnnaallyyssiiss SSttaattuuss
Measuring Progress Towards our Goal
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2
ERA Project Overview, Flow
And Key Decision Point for Phase 2
FY09 FY10 FY11 FY12 FY13 FY14 FY15
Prior
Key Decision
Formulation
Research
Point
ffor PPhhase 22
External
Phase 1 Investigations
Input
Initial NRAs
Phase 2
EERRAA SSyysstteemmss AAnnaallyyssiiss PPhhase 22 IInvesttiigattiions
Decision Support Task Planning
$$6600.00MM $$6633.11MM $$6655.11MM $$6611.77MM $$5577.44MM $$5577.44MM
Technical input from Fundamental Programs, NRAs, Industry, Academia, Other Gov’t Agencies
Refer to Title Slide for Distribution Restrictions
ERA Goals, Objectives & System Level Metrics
ERA Goal
N+1 = 2015** N+2 = 2020** N+3 = 2025**
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To a Single Aisle Reference To a Large Twin Aisle
Configuration Reference Configuration
NNooiissee
-32 dB -42 dB -71 dB
(cum below Stage 4)
LTO NO Emissions
x -60% -75% better than -75%
(below CAEP 6)
Performance:
-33% -50% better than -70%
Aircraft Fuel Burn
Performance:
-33% -50% expploit metro-pplex* conceppts
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**Technology Readiness Level for key technologies = 4-6. ERA will undertake a time phased approach, TRL 6 by 2015 for “long-pole” technologies
* Concepts that enable optimal use of runways at multiple airports within the metropolitan area
4
In 2005, market opportunities drove the development
of the system level metrics
The market was predicting there would be a single aisle
((BB773377//AA332200)) rreeppllaacceemmeenntt aaiirrccrraafftt bbyy 22001155*
– This drove the N+1 focus and metrics to be referenced to SOA
single aisle
Also, we projected about 10 years later there would be a large
twin aisle (B777) replacement
– This drove the the N+2 focus, and metrics to be referenced to the
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Chinese C919, 168-190 seat class and Russian MC-21, 150-212 seat class
*
First Flights in 2014?
5
Market Opportunities - Current Forecast
• Beyond 2015, before 2020 – New engines (GTF, LEAP-X)
– A320 New Engine Option
– RRee-eennggiinnee BB773377??
• Beyond 2020, before 2025 – CONVENTIONAL THINKING
– SSiinglle AAiislle RRepllacementt ((BB773377//AA332200))
• High probability tube and wing, adv engine (open rotor)/combustors, advanced
structures, plus laminar flow
– LLaarrggee TTwwiinn AAiissllee RReeppllaacceemmeenntt ((BB777777, eettcc))
• High probability tube and wing, advanced engine/combustors, advanced
structures, laminar flow, but HWB likely to be evaluated as serious contender
• 2025 and BEYOND – UNCONVENTIONAL THINKING – WHAT IF
REPLACEMENTS SLIP TO RIGHT?
– NNAASSAA NN++22 aanndd NN++33 ssttuddiieess iiddeennttiiffyiinngg kkeey, ttiimmee-pphhaasseedd tteecchhnnoollooggy rrooaaddmmaappss, aanndd
“system ready” unconventional configurations
• Joined wing, trussed braced wing, double bubble, HWB, etc.
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6
Assess impacts of technology investments
on market opppportunities
Re-engine/Retrofits Replacement Replacement
2010 Assessment Conventional Unconventional
RRegiionall JJett RREEFF – CCRRJJ990000//CCFF3344-88
Re-engine/Retrofits Replacement Replacement
REF – CRJ900/CF34-8 REF – CRJ900/CF34-8
2010 Assessment Conventional Unconventional
Single Aisle
Re-engine/Retrofits Replacement Replacement
Noise
2010 Assessment Conventional Unconventional
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SSmallll TTwiin AAiislle
Re-engine/Retrofits Replacement Replacement
2010N Aosisseessment Conventional Unconventional
LTO NO Emissions
x
(cuLma rbgeelo Tww Sinta Ageis 4le) Re-engine/Retrofits Replacement Replacement
(below CAEP 6)
2010N Aoissseessment Conventional Unconventional
LTO NO Emissions
((ccummPP eebbrrVVffeeooeellrroommxxrrwyyaa nnLLSSccaatteeaarr::ggggeeee 44))
(below CAEP 6)
Aircraft Fuel Burn
Noise
LTO NO Emissions
(cumP ebrefolorxmwa nSctea:ge 4)
TIME (below CAEP 6)
NOWAircraft NFuoeisl eBurn 2025 +
LTO NO Emissions
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TIME (below CAEP 6)
Aircraft Fuel Burn
NOW 2025 +
LTO NO Emissions
x
Performance:
(below CAEP 6)
TIME
Aircraft Fuel Burn
NOW 2025 +
PPeerrffoorrmmaannccee::
TIME
Aircraft Fuel Burn
NOW 2025 +
TIME
NOW 2025 +
7
ERA Systems Analysis Overview
ERA systems analysis tasks for measuring progress
towards our goal
• “Top Down” Methodology Overview
• Conceppt Modelingg Results Summaryy
• Large Twin Aisle Class Advanced Tube + Wing and HWB
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supporting ERA to perform this analysis
ERA N+2 Technology Database
(3rd Iteration Completed August 2010)
ERA Technology Database Development Approach:
• Multiple Data Sources:
 ERA Phase 1 Project Plans
 GA Tech JPDO/FAA EDS Database
 NNAASSAA NN++33 NNRRAA RReeppoorrttss
 FAP/SFW Planning Reports
 ERA Project Engineers
 ERA Discipline Experts
• Technologies with TRL too low or too high for ERA were removed
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• Technology Description Technology Compatibility Matrix
Shows Interactions for 65 Technologies
• Current and Projected TRLs
• Technology Compatibility Matrix (interactions for 65 Technologies
• Summary Spreadsheet (19 airframe technologies; 46 engine technologies)
• Projected benefits and impacts
• Modeling approach in EDS
Initial Technology “Collectors”
Advanced Tube and Wing Hybrid Wing Body
Engine Options:
Advanced direct drive
GGearedd TTurbboffan
Open Rotor
• Potential ERA airframe and engine technology packages
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• Fuel burn, noise and emissions are estimated using models developed in
NASA’s standard toolset (NPSS/WATE, FLOPS, ANOPP) which has been
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• EDS can feed global tools in AEDT for fleet level global impact estimates
•• SSeeeekkiinngg aaddddiittiioonnaall tteecchhnnoollooggyy ccoolllleeccttoorr aaddvvaanncceedd ccoonnffiigguurraattiioonnss tthhrroouugghh NNRRAA aanndd
in-house efforts