In 1986, Radian initiated development of an improved vehicle evaporative emissions model -- a model that expands upon the present EPA MOBILE4 to incorporate key factors affecting evaporative emissions rates. The 1988 annual report describes model improvements, including: the relationship between tank temperature and ambient temperature; a user interface to allow the input of user-selected multiple driving patterns; improved estimates of controlled and uncontrolled diurnal emissions for 1981+ vehicles and older model year vehicles; inclusion of additional to update diurnal and hot-soak emission factors; and to update the effect of fuel tank level on hot-soak and diurnal emissions; investigation of the relationships between driving behavior and fuel tank temperature.


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    Titel :

    CRC-Radian Evaporative Emissions Model: EVAP 2.0 Annual Report, 1988


    Beteiligte:
    S. Kishan (Autor:in) / T. H. DeFries (Autor:in) / R. Klausmeier (Autor:in)

    Erscheinungsdatum :

    1989


    Format / Umfang :

    268 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch