Aviation Environmental Modeling and Management

Airports Authority of India16 Jan 08

Andrew HansenRTV-4F

US DOT Volpe Center

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Aviation Environmental Issues

Community Noise LevelsCurtailing significant aircraft noise impacts around airports

Global ClimateUnderstanding and addressing the impact of aviation on Earth’s climate

Limiting or reducing impact of aviation on local air quality

Air Quality

Water QualityLimiting or reducing impact of aviation on water quality

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Aviation Environmental Governance

United States FAA Office of Energy and EnvironmentPolicy and decision-making

ICAO CAEP—Emissions stringency, long-term goals, green house gases, influence future fleetFAA JPDO—airspace redesign, efficiencies in air traffic management, energy conservation

Regulatory complianceAirport authorities—environmental impact studies, respond to public inquiriesOperators and airframe manufacturers—airframe design constraints, operational fleet optimization

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Why Integrate Noise and Emissions?

DOT 2004 R&D Annual Review

FAA 2005-2009 Flight Plan

FAA Joint Planning and Development Office—Next Generation Air Transportation System“Create new analytical tools to understand better the relationship between noise and emissions, the different types of emissions, and the costs and benefits of different policies and actions”

(http://www1.faa.gov/aboutfaa/flightplan.cfm)

“Develop better technologies and analytical tools to evaluate aircraft noise and emissions.”

“Ensure aviation remains a good neighbor.”

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Aviation Environmental Tools SuiteFAA Office of Energy and Environment Effort

Environmental Design Space (EDS)—future fleetsAviation Environmental Design Tool (AEDT)—aircraft performance, emissions, and acousticsAviation Environmental Portfolio Management Tool (APMT)—environmental and economic evaluations, benefit/costStandardized Aviation Databases

Fleet—industry and government (Campbell Hill, BACK, BADA, ANP)Airport—government (NFDC, DAFIF, AVN)Movements—schedule and radar (ETMS, ETFMS, OAG, others)

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Aviation Environmental Tools Suite

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AEDT Functional SchematicFLEETS

GSE

MOVEMENTS

&

OPERATIONS AIRPORTS

Outputand

Display

Taskmaster

Results

FOM

AER-

MOD/MET

AEM

Emissions

AAM

Noise

Dispersion

TPM

Performance

APM

Event-based Methodology Engine (EBME)

ReplaceRetireGrowth

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AEDT Scenario/Study ConstructionAirport layouts

Operations visualization

Event Archive

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Example Analysis of Noise Exposure

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Example of Regional Airspace Design

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Continuous Descent Approach (CDA)

0 5

nautical miles10

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CDA Vertical Approach Profiles

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Example Improvements from CDA10,000 ft AFE to Touchdown

% Change Relative to BaselineEmiss Straight-

In Downwind Southern

CO -8.7 -13.8 -26.7THC -8.8 -11.0 -23.9

NMHC -8.8 -11.0 -23.9VOC -8.8 -11.0 -23.9NOx -18.1 -32.3 -51.8SOx -14.7 -26.9 -46.1CO2 -14.7 -26.9 -46.1H2O -14.7 -26.9 -46.1Fuel -14.7 -26.9 -46.1

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Example Assessment of Fuel Burn

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Annual Fuel-burn Estimates by RegionFuel Burn Bunkers by region of flight origination

0

10

20

30

40

50

60

70

80

90

Africa Asia Australia &Oceania

E-Europe Middle East N-American &Caribbean

South America W-Europe & N-Atlantic

Region

Valu

es in

Tg

whe

re 1

Tg=1

0^12

g

200020012002200320042005

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Airways Design—RVSM Efficiency

Pre-RVSM Post-RVSM

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RVSM Fuel-burn Benefit Prediction

US Domestic RVSM Analysis Results

-1

0

1

2

3

4

5

1 2 3 4

Analysis Method

∆η (%

)

Fuel Burn NOx