Journal article
Aircraft Hydrocarbon Emissions at Oakland International Airport
Environmental science & technology, v 43(6), pp 1730-1736
15 Mar 2009
PMID: 19368164
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
To help airports improve emission inventory data, speciated hydrocarbon emission indices have been measured from in-use commercial, airfreight, and general aviation aircraft at Oakland International Airport. The compounds reported here include formaldehyde, acetaldehyde, ethene, propene, and benzene. At idle, the magnitude of hydrocarbon emission indices was variable and reflected differences in engine technology, actual throttle setting, and ambient temperature. Scaling the measured emission indices to the simultaneously measured formaldehyde (HCHO) emission index eliminated most of the observed variability. This result supports a uniform hydrocarbon emissions profile across engine types when the engine is operating near idle, which can greatly simplify how speciated hydrocarbons are handled in emission inventories. The magnitude of the measured hydrocarbon emission index observed in these measurements (ambient temperature range 12-22 degrees C) is a factor of 1.5-2.2 times larger than the certification benchmarks. Using estimates of operational fuel flow rates at idle, this analysis suggests that current emission inventories at the temperatures encountered at this airport underestimate hydrocarbon emissions from the idle phase of operation by 16-45%.
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Details
- Title
- Aircraft Hydrocarbon Emissions at Oakland International Airport
- Creators
- Scott C. Herndon - Aerodyne ResearchEzra C. Wood - Aerodyne ResearchMegan J. Northway - Aerodyne ResearchRichard Miake-Lye - Aerodyne ResearchLee Thornhill - Aerodyne ResearchAndreas Beyersdorf - Aerodyne ResearchBruce E. Anderson - Aerodyne ResearchRenee Dowlin - Aerodyne ResearchWillard Dodds - Aerodyne ResearchW. Berk Knighton - Montana State University
- Publication Details
- Environmental science & technology, v 43(6), pp 1730-1736
- Publisher
- American Chemical Society; Washington, DC
- Number of pages
- 7
- Grant note
- Missouri University of Science and Technology Center of Excellence NASA; National Aeronautics & Space Administration (NASA)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Chemistry
- Web of Science ID
- WOS:000264108800015
- Scopus ID
- 2-s2.0-64549099301
- Other Identifier
- 991020902865904721
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- Collaboration types
- Industry collaboration
- Domestic collaboration
- Web of Science research areas
- Engineering, Environmental
- Environmental Sciences