Accession Number : ADA213566


Title :   Characterization of Chemicals on Engine Exhaust Particles


Descriptive Note : Final rept. Sep 1986-Dec 1987


Corporate Author : BATTELLE COLUMBUS DIV OH


Personal Author(s) : Kuhlman, M R ; Chuang, J C


Full Text : http://www.dtic.mil/dtic/tr/fulltext/u2/a213566.pdf


Report Date : Jun 1989


Pagination or Media Count : 114


Abstract : The object of the work described in this report has been the characterization of particulate-bound chemicals emitted from military aircraft, both as they are emitted and as the exhaust ages. Three Air Force turbine engines (TF33-P3, TF33-P7, and J79C) were examined in this study, using engine test cells at Tinker AFB OK. Emissions were collected at power settings of idle, 30 percent, 75 percent, and injected into smog chambers for subsequent aging. Samples were collected from these chambers periodically during the photochemical experiments to permit measurements of the vapor phase and particle associated photochemical experiments to permit measurements of the vapor phase and particle associated polycyclic aromatic hydrocarbon (PAH) and derivatives under experimental conditions. Throughout the course of the experiments, measurements of the concentrations of total hydrocarbons, NO, NOx, and O3 were made. The samples collected on filter and sorbent media were returned to the laboratory for extraction and analysis by gas chromatography/mass spectrometry (GC/MS) to determine masses of specific target compounds collected. The time profiles of these compounds are presented for the various engines, operating powers, sunlight levels, and photochemical reactivities examines.


Descriptors :   *EMISSION , *COMBUSTION PRODUCTS , *AIR POLLUTION , *JET ENGINES , *AIRCRAFT EXHAUST , *NITROGEN OXIDES , TIME , PARTICLES , PROFILES , ABSORBERS(MATERIALS) , HYDROCARBONS , SMOG , AROMATIC HYDROCARBONS , MEDIA , TURBINES , POWER , CHAMBERS , GAS CHROMATOGRAPHY , CHEMICAL COMPOUNDS , ADSORBENTS , SUNLIGHT , MASS SPECTROMETRY , POLYCYCLIC COMPOUNDS , VAPOR PHASES , REACTIVITIES , CHEMICALS , PHOTOCHEMICAL REACTIONS , MILITARY AIRCRAFT , SETTING(ADJUSTING) , ENGINES


Subject Categories : Organic Chemistry
      Combustion and Ignition
      Jet and Gas Turbine Engines
      Air Pollution and Control


Distribution Statement : APPROVED FOR PUBLIC RELEASE