| Autor: |
Yu Z; Aerodyne Research, Inc., Billerica, Massachusetts 01821, United States., Liscinsky DS, Winstead EL, True BS, Timko MT, Bhargava A, Herndon SC, Miake-Lye RC, Anderson BE |
| Jazyk: |
angličtina |
| Zdroj: |
Environmental science & technology [Environ Sci Technol] 2010 Dec 15; Vol. 44 (24), pp. 9530-4. Date of Electronic Publication: 2010 Nov 19. |
| DOI: |
10.1021/es102145z |
| Abstrakt: |
In this first ever study, particulate matter (PM) emitted from the lubrication system overboard breather vent for two different models of aircraft engines has been systematically characterized. Lubrication oil was confirmed as the predominant component of the emitted particulate matter based upon the characteristic mass spectrum of the pure oil. Total particulate mass and size distributions of the emitted oil are also investigated by several high-sensitivity aerosol characterization instruments. The emission index (EI) of lubrication oil at engine idle is in the range of 2-12 mg kg(-1) and increases with engine power. The chemical composition of the oil droplets is essentially independent of engine thrust, suggesting that engine oil does not undergo thermally driven chemical transformations during the ∼4 h test window. Volumetric mean diameter is around 250-350 nm for all engine power conditions with a slight power dependence. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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