Measurement and Simulation of Volatile Particle Emissions from Military Aircraft
Abstract
Many military airfields are located in nonattainment areas for fine particulate matter (PM2.5) but the contribution of aircraft emissions to local and regional PM2.5 concentrations is not well understood. Aircraft directly emit particles, but the vast majority of the emissions are gases and vapors, some of which undergo gas-to-particle conversion in the atmosphere. Primary particulate matter is defined as directly emitted particles plus any material that condenses into the particle phase without undergoing chemical reactions. This latter component is often referred to as volatile particulate matter. Secondary particulate matter is formed from oxidation of gas-phase species such as sulfur dioxide and organics. To develop effective control strategies one must understand the overall contribution of military aircraft emissions to ambient particulate matter? both direct particle emissions and particulate matter formed in the atmosphere. To assist the Department of Defense in meeting the current and future regulations related to PM2.5 concentrations, SERDP initiated a research program in 2007 to investigate volatile particulate matter emissions. Three projects were funded within this program; the lead organizations of these programs were Aerodyne Research Inc., Carnegie Mellon University, and Oak Ridge National Laboratories. The projects included experiments to measure the formation and atmospheric evolution of volatile particulate matter, the development volatile emission models, and the evaluation of new instrumentation and experimental techniques. This presentation will summarize the major findings of the SERDP volatile particulate matter program, including the contribution of lubricating oil and atmospheric oxidation to volatile particulate matter emissions.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 2011
- Accession Number
- ADA554409
Entities
People
- Allen Robinson
Organizations
- Carnegie Mellon University