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Aerosols generated by accidents: pressurized liquid release experiments.

S L Sutter, M A Halverson

    American Industrial Hygiene Association Journal
    |April 1, 1984
    PubMed
    Summary

    Accidental airborne releases from pressurized liquid releases were studied. Containment pressure significantly impacts airborne mass, with releases producing respirable particles relevant for facility safety assessments.

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    Area of Science:

    • Environmental Science
    • Chemical Engineering
    • Industrial Safety

    Background:

    • Facility safety assessments require estimating airborne releases from accidents.
    • Aerosol generation during accidental releases is crucial for determining source terms.
    • Pressurized liquid releases represent a severe accidental release scenario.

    Purpose of the Study:

    • To investigate aerosol generation from pressurized liquid releases in static air.
    • To quantify the mass airborne as a function of source size and containment pressure.
    • To develop estimation methods for airborne releases in static air.

    Main Methods:

    • Conducted pressurized liquid release experiments in static air.
    • Varied source size and containment pressure.
    • Focused on releases with containment breach above the liquid level.

    Main Results:

    • Containment pressure was the only significant parameter for releases with the breach above the liquid.
    • Airborne mass ranged from 4 X 10(-4) to 0.15% of the source.
    • All releases generated a significant fraction of respirable particles.

    Conclusions:

    • Established relationships for estimating releases in static air based on containment pressure.
    • Findings are applicable to safety assessments and environmental impact statements for facilities.
    • The study highlights the importance of respirable particle generation in accidental releases.

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