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Power-dependent speciation of volatile organic compounds in aircraft exhaust

As part of the third NASA Aircraft Particle Emissions Experiment (APEX-3, November 2005), whole air samples were collected to determine the emission rates of volatile organic compounds (VOCs) from aircraft equipped with three different gas-turbine engines (an Allison Engine 3007-A1E, a Pratt–Whitney... Full description

Journal Title: Atmospheric Environment December 2012, Vol.61, pp.275-282
Main Author: Beyersdorf, Andreas J
Other Authors: Thornhill, K. Lee , Winstead, Edward L , Ziemba, Luke D , Blake, Donald R , Timko, Michael T , Anderson, Bruce E
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 1352-2310 ; E-ISSN: 1873-2844 ; DOI: 10.1016/j.atmosenv.2012.07.027
Link: http://dx.doi.org/10.1016/j.atmosenv.2012.07.027
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recordid: elsevier_sdoi_10_1016_j_atmosenv_2012_07_027
title: Power-dependent speciation of volatile organic compounds in aircraft exhaust
format: Article
creator:
  • Beyersdorf, Andreas J
  • Thornhill, K. Lee
  • Winstead, Edward L
  • Ziemba, Luke D
  • Blake, Donald R
  • Timko, Michael T
  • Anderson, Bruce E
subjects:
  • Aircraft Emissions
  • Turbine Engine
  • Hydrocarbon Emission Indices
  • Oxygenated Hydrocarbons
  • Aircraft Emissions
  • Turbine Engine
  • Hydrocarbon Emission Indices
  • Oxygenated Hydrocarbons
  • Engineering
  • Environmental Sciences
ispartof: Atmospheric Environment, December 2012, Vol.61, pp.275-282
description: As part of the third NASA Aircraft Particle Emissions Experiment (APEX-3, November 2005), whole air samples were collected to determine the emission rates of volatile organic compounds (VOCs) from aircraft equipped with three different gas-turbine engines (an Allison Engine 3007-A1E, a Pratt–Whitney 4158, and a Rolls–Royce RB211-535E4B). Samples were collected 1 m behind the engine exhaust plane of the engines while they were operated at powers ranging from idle up to 30% of maximum rated thrust. Exhaust emission indices (mass emitted per kilogram of fuel used) for CO and non-methane hydrocarbons (NMHCs) were calculated based on enhancements over background relative to CO2. Emissions of all NMHCs were greatest at low power with values decreasing by an order of magnitude with increasing power. Previous studies have shown that scaling idle hydrocarbon emissions to formaldehyde or ethene (which are typically emitted at a ratio of 1-to-1 at idle) reduces variability...
language: eng
source:
identifier: ISSN: 1352-2310 ; E-ISSN: 1873-2844 ; DOI: 10.1016/j.atmosenv.2012.07.027
fulltext: fulltext
issn:
  • 1352-2310
  • 13522310
  • 1873-2844
  • 18732844
url: Link


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subjectAircraft Emissions ; Turbine Engine ; Hydrocarbon Emission Indices ; Oxygenated Hydrocarbons ; Aircraft Emissions ; Turbine Engine ; Hydrocarbon Emission Indices ; Oxygenated Hydrocarbons ; Engineering ; Environmental Sciences
descriptionAs part of the third NASA Aircraft Particle Emissions Experiment (APEX-3, November 2005), whole air samples were collected to determine the emission rates of volatile organic compounds (VOCs) from aircraft equipped with three different gas-turbine engines (an Allison Engine 3007-A1E, a Pratt–Whitney 4158, and a Rolls–Royce RB211-535E4B). Samples were collected 1 m behind the engine exhaust plane of the engines while they were operated at powers ranging from idle up to 30% of maximum rated thrust. Exhaust emission indices (mass emitted per kilogram of fuel used) for CO and non-methane hydrocarbons (NMHCs) were calculated based on enhancements over background relative to CO2. Emissions of all NMHCs were greatest at low power with values decreasing by an order of magnitude with increasing power. Previous studies have shown that scaling idle hydrocarbon emissions to formaldehyde or ethene (which are typically emitted at a ratio of 1-to-1 at idle) reduces variability...
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description

As part of the third NASA Aircraft Particle Emissions Experiment (APEX-3, November 2005), whole air samples were collected to determine the emission rates of volatile organic compounds (VOCs) from aircraft equipped with three different gas-turbine engines (an Allison Engine 3007-A1E, a Pratt–Whitney 4158, and a Rolls–Royce RB211-535E4B). Samples were collected 1 m behind the engine exhaust plane of the engines while they were operated at powers ranging from idle up to 30% of maximum rated thrust.

Exhaust emission indices (mass emitted per kilogram of fuel used) for CO and non-methane hydrocarbons (NMHCs) were calculated based on enhancements over background relative to CO2. Emissions of all NMHCs were greatest at low power with values decreasing by an order of magnitude with increasing power. Previous studies have shown that scaling idle hydrocarbon emissions to formaldehyde or ethene (which are typically emitted at a ratio of 1-to-1 at idle) reduces variability...

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As part of the third NASA Aircraft Particle Emissions Experiment (APEX-3, November 2005), whole air samples were collected to determine the emission rates of volatile organic compounds (VOCs) from aircraft equipped with three different gas-turbine engines (an Allison Engine 3007-A1E, a Pratt–Whitney 4158, and a Rolls–Royce RB211-535E4B). Samples were collected 1 m behind the engine exhaust plane of the engines while they were operated at powers ranging from idle up to 30% of maximum rated thrust.

Exhaust emission indices (mass emitted per kilogram of fuel used) for CO and non-methane hydrocarbons (NMHCs) were calculated based on enhancements over background relative to CO2. Emissions of all NMHCs were greatest at low power with values decreasing by an order of magnitude with increasing power. Previous studies have shown that scaling idle hydrocarbon emissions to formaldehyde or ethene (which are typically emitted at a ratio of 1-to-1 at idle) reduces variability...

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