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Aircraft sulfur emissions and the formation of visible contrails
Author(s) -
Brown R. C.,
MiakeLye R. C.,
Anderson M. R.,
Kolb C. E.
Publication year - 1997
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/97gl00107
Subject(s) - sulfur , plume , aerosol , environmental science , soot , exhaust gas , particle (ecology) , atmospheric sciences , meteorology , sulfuric acid , chemistry , combustion , physics , geology , inorganic chemistry , oceanography , organic chemistry
Contrail formation in the exhaust plume of the ATTAS aircraft engine burning fuels with 2 ppmm and 266 ppmm sulfur has been studied using an aerosol dynamics model coupled to a 2‐dimensional, axisymmetric flow code. For both the low and high sulfur fuels, the model predicted approximately 35% of the available water condenses within 200 m downstream of the exhaust exit. However, particle size distributions for the low sulfur plume are broader and extend to larger sizes. Model results indicate that, for the engine and flight conditions treated, sulfuric acid is a viable soot activating agent when the fuel sulfur mass loading is reduced to 2 ppmm and that differences in the contrail particle size distribution for sulfur mass loadings between 2 ppmm and 266 ppmm would be difficult to detect.