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Experiment to Characterize Aircraft Volatile Aerosol and Trace-Species Emissions (EXCAVATE)The Experiment to Characterize Aircraft Volatile and Trace Species Emissions (EXCAVATE) was conducted at Langley Research Center (LaRC) in January 2002 and focused upon assaying the production of aerosols and aerosol precursors by a modern commercial aircraft, the Langley B757, during ground-based operation. Remaining uncertainty in the postcombustion fate of jet fuel sulfur contaminants, the need for data to test new theories of particle formation and growth within engine exhaust plumes, and the need for observations to develop air quality models for predicting pollution levels in airport terminal areas were the primary factors motivating the experiment. NASA's Atmospheric Effects of Aviation Project (AEAP) and the Ultra Effect Engine Technology (UEET) Program sponsored the experiment which had the specific objectives of determining ion densities; the fraction of fuel S converted from S(IV) to S(VI); the concentration and speciation of volatile aerosols and black carbon; and gas-phase concentrations of long-chain hydrocarbon and PAH species, all as functions of engine power, fuel composition, and plume age.
Document ID
20050214696
Acquisition Source
Langley Research Center
Document Type
Technical Memorandum (TM)
Authors
Anderson, B. E.
(NASA Langley Research Center Hampton, VA, United States)
Branham, H.-S.
(NASA Langley Research Center Hampton, VA, United States)
Hudgins, C. H.
(NASA Langley Research Center Hampton, VA, United States)
Plant, J. V.
(NASA Langley Research Center Hampton, VA, United States)
Ballenthin, J. O.
(Air Force Research Lab. Hanscom AFB, MA, United States)
Miller, T. M.
(Air Force Research Lab. Hanscom AFB, MA, United States)
Viggiano, A. A.
(Air Force Research Lab. Hanscom AFB, MA, United States)
Blake, D. R.
(California Univ. Irvine, CA, United States)
Boudries, H.
(Aerodyne Research, Inc. Billerica, MA, United States)
Canagaratna, M.
(Aerodyne Research, Inc. Billerica, MA, United States)
Date Acquired
September 7, 2013
Publication Date
August 1, 2005
Subject Category
Environment Pollution
Report/Patent Number
NASA/TM-2005-213783
L-19019
Funding Number(s)
WORK_UNIT: WU 23-622-45-02
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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