Aircraft Particulate Emissions
This page finalized August 16, 2005.
Chairman's Air Pollution Seminar Series
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Monday, August 22,
2005
2:00 p.m. - 3:00 p.m.
Coastal Hearing Room, First Floor
1001 I Street, Sacramento
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Webcast
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Aircraft Particulate Emissions
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Chowen Chou Wey, Ph.D.
Aviation Particulate Emissions Program Manager
NASA Glenn Research Center
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Dr. Chowen Wey will provide an introduction to the fundamental scientific understanding
of jet aircraft particulate matter (PM) emissions, starting with a characterization of the types of volatile and
non-volatile PM emitted from modern turbofan engines used in commercial, civil, and military aircraft. She will
briefly discuss local air quality impacts as well as impacts of jet aircraft PM on the global climate. Key questions
to be discussed will include what impacts are most important (local air quality, human health, or climate change)
and what parameters are most important when it comes to assessing the impacts of aircraft PM emissions.
Challenges in sampling PM emissions from jet aircraft engines will be addressed, leading to efforts currently underway
under the auspices of the Society of Automotive Engineers (SAE) to develop aerospace recommended practices for
sampling jet aircraft PM emissions. The Defense Department's need to measure PM mass from the Joint Strike Fighter's
engines has accelerated research to measure PM from commercial engines. NASA's Aviation Particle Experiment (APEX)
projects will be described, including the 2004 test program conducted at NASA Dryden Research Center in California.
Some preliminary representative data will be presented from this project.
The roles of NASA, FAA, and ICAO and the National Aviation PM Road map will be discussed. The PM Road map will
prepare a report that will be used by Congress to determine what level of future funding is needed to address jet
aircraft PM emissions. |
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Dr. Chowen Wey is program manager
for aircraft particulate emissions research at NASA's John H. Glenn Research Center in Cleveland, Ohio, where she
has managed a wide variety of aircraft-related research projects during her nineteen years at the Center.
Chowen earned her Ph.D. in Atmospheric Science from the Georgia Institute of Technology and describes herself as
a scientist by education and an engineer by work experience. At NASA she has had broad experience in propulsion
- related fluid dynamics, materials endurance, and combustor and engine testing to characterize jet aircraft engine
emissions.
Chowen initiated NASA Glenn's aviation particulate emissions research efforts and currently manages the program
in jet engine particulate emissions and their atmospheric impacts, including local air quality and global climate
change. She is also NASA Glenn's senior liaison to the International Civil Aviation Organization (ICAO), the Federal
Aviation Administration (FAA), and the US Environmental Protection Agency (EPA). ICAO is an international organization
that establishes jet engine emission standards that apply to the entire worldwide commercial aircraft fleet.
Chowen is in Northern California to participate in a collaborative research project with ARB, NASA, FAA, and EPA
to collect and analyze particulate and air toxic emissions from commercial jet aircraft engines. |
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For more information on this
Seminar please contact Jim Lerner at (916) 322-6007 or send email to: jlerner@arb.ca.gov.
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For a complete listing of
the ARB Chairman's Series and the related documentation for each one of the series please check this page.
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Note: for a print friendly
version of this page please click on the "Print Friendly" option at the very top of this page.
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Main Seminar Series Page
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Research
Activities
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