Impact of National Airspace Systems (NAS) Modernization on Aircraft Emissions
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1998-09-01
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Corporate Contributors:United States. Federal Aviation Administration. Systems Engineering and Technical Assistance ; CSSI, Inc. ; United States. Department of Transportation. Federal Aviation Administration. Office of Environment and Energy ; United States. Federal Aviation Administration. Office of System Architecture and Investment Analysis
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Abstract:The study evaluated the fuel and emission benefits of Free Flight by aircraft type and phase of flight. Calculations for aircraft emissions were made for pollutants directly produced within the engine combuster and emitted at a rate depending on the temperature and thrust of the engine—in this instance, specifically for nitrogen oxides (NOx), hydrocarbons (HC) and carbon monoxide (CO). These calculations used emission indices in terms of unit of pollutant per 1,000 units of fuel burned for each phase of flight. The emissions for other gases such as carbon dioxide and sulfur dioxide were not included as part of this study.
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