STP1111

    Endotracheal Tube Fires: A Flame Spread Phenomenon

    Published: Jan 1991


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    Abstract

    Three flame types can result when an ignition source is applied to a tube of a combustible material through which an oxidizer flows. If the oxygen concentration inside the tube is greater than the tube material's limiting oxygen index (LOI), an opposed flow flame can spread along the inner surface of the tube (primary intraluminal flame). This flame, which requires a forced flow, consumes the supplied oxygen (fully or in part) and produces combustible, toxic gases which emerge from the free end (and ignition hole where applicable). These gases can then react with the oxygen in the ambient environment and thereby support the second flame type (secondary jet diffusion flame). If the LOI is exceeded outside the tube, an extraluminal flame (the third flame type) can occur, and be supported by natural convection.

    Keywords:

    flame spread, underventilated, endotracheal tube, oxygen index, fire safety


    Author Information:

    Sidebotham, GW
    Assistant Professor of Mechanical EngineeringCooper Union Master of Engineering degree recipient and candidateProfessor, the Cooper Union for the Advancement of Science and ArtState University of New York, Health Sciences Center, New YorkBrooklyn, NYNY

    Wolf, GL
    Assistant Professor of Mechanical EngineeringCooper Union Master of Engineering degree recipient and candidateProfessor, the Cooper Union for the Advancement of Science and ArtState University of New York, Health Sciences Center, New YorkBrooklyn, NYNY

    Stern, J
    Assistant Professor of Mechanical EngineeringCooper Union Master of Engineering degree recipient and candidateProfessor, the Cooper Union for the Advancement of Science and ArtState University of New York, Health Sciences Center, New YorkBrooklyn, NYNY

    Aftel, R
    Assistant Professor of Mechanical EngineeringCooper Union Master of Engineering degree recipient and candidateProfessor, the Cooper Union for the Advancement of Science and ArtState University of New York, Health Sciences Center, New YorkBrooklyn, NYNY


    Paper ID: STP17762S

    Committee/Subcommittee: G04.02

    DOI: 10.1520/STP17762S


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