The commercial aviation community is faced with the need to assess the impacts of aviation emissions on air quality. Until recent government-sponsored tests were undertaken, emissions of particulate matter (PM) from commercial jet engines were not well understood. Prior to the mid-1990s, jet engine PM emissions were identified as smoke and were exclusively quantified using the Society of Automotive Engineers (SAE) Recommended Practice 1179 Smoke Number (SAE 1991). The smoke number does not identify the key characteristics of the PM (morphology, chemical composition, distributional accounts of size and volume, or number and mass concentration) and is, therefore, of limited value to those parties analyzing environmental and health impacts of aviation emissions. As a result,alternative methods for characterizing PM emissions based on these key characteristics were developed. These methods were first applied to quantify PM emissions for military engines (Spicer et al. 1992, 1994; Howard et al. 1996; Whitefield et al. 2002). Although these methods and data served to improve the scientific community's understanding of aircraft engine PM emissions, these studies focused on engine technologies that are different from those currently used in the commercial fleet.


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    Title :

    Summarizing and Interpreting Aircraft Gaseous and Particulate Emissions Data. Airport Cooperative Research Program


    Contributors:
    P. D. Whitefield (author) / P. Lobo (author) / D. E. Hagen (author) / M. T. Timko (author) / R. C. Miake-Lye (author)

    Publication date :

    2008


    Size :

    70 pages



    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English