Journal article
Measurements of Nitrous Acid in Commercial Aircraft Exhaust at the Alternative Aviation Fuel Experiment
Environmental science & technology, v 45(18), pp 7648-7654
15 Sep 2011
PMID: 21809872
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
The Alternative Aviation Fuel Experiment (AAFEX), conducted in January of 2009 in Palmdale, California, quantified aerosol and gaseous emissions from a DC-8 aircraft equipped with CFM56-2C1 engines using both traditional and synthetic fuels. This study examines the emissions of nitrous acid (HONO) and nitrogen oxides (NO(x) = NO + NO(2)) measured 145 m behind the grounded aircraft. The fuel-based emission index (El) for HONO increases approximately 6-fold from idle to takeoff conditions but plateaus between 65 and 100% of maximum rated engine thrust, while the El for NO(x) increases continuously. At high engine power, NO(x) El is greater when combusting traditional (JP-8) rather than Fischer-Tropsch fuels, while HONO exhibits the opposite trend. Additionally, hydrogen peroxide (H(2)O(2)) was identified in exhaust plumes emitted only during engine idle. Chemical reactions responsible for emissions and comparison to previous measurement studies are discussed.
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Details
- Title
- Measurements of Nitrous Acid in Commercial Aircraft Exhaust at the Alternative Aviation Fuel Experiment
- Creators
- Ben H. Lee - Harvard University PressGregory W. Santoni - Harvard University PressEzra C. Wood - Aerodyne ResearchScott C. Herndon - Aerodyne ResearchRichard C. Miake-Lye - Aerodyne ResearchMark S. ZahniserSteven C. Wofsy - Harvard University PressJ. William Munger - Harvard University Press
- Publication Details
- Environmental science & technology, v 45(18), pp 7648-7654
- Publisher
- American Chemical Society; Washington, DC
- Number of pages
- 7
- Grant note
- AGS 0813617; 0814202 / National Science Foundation; National Science Foundation (NSF) 0814202 / Div Atmospheric & Geospace Sciences; National Science Foundation (NSF); NSF - Directorate for Geosciences (GEO)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Chemistry
- Web of Science ID
- WOS:000294791200008
- Scopus ID
- 2-s2.0-80052727538
- Other Identifier
- 991020902980104721
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- Collaboration types
- Industry collaboration
- Domestic collaboration
- Web of Science research areas
- Engineering, Environmental
- Environmental Sciences