Theoretical calculations were performed to aid in the design of a perforated tube that will uniformly distribute Halon 1301 throughout the unventilated passenger cabin of a commercial air transport. Conditions for the calculations were those of a passenger cabin of a DC-7 fuselage, with a volume of 4000 cubic feet and a length of 72 feet, being used as a test article for evaluating the performance of such a system. Four separate calculations were made to determine the (1) size and number of orifices in the tube required for various Halon 1301 discharge rates; (2) pressure drop as a function of tube diameter and discharge rates; (3) time required to fill the tube with Halon 1301 for various tube diameters; and (4) cabin temperature and pressure after completion of Halon 1301 discharge. (Author Modified Abstract)


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    Title :

    Design Calculations for a Halon 1301 Distribution Tube for an Aircraft Cabin Fire Extinguishing System


    Contributors:
    J. A. Jones (author) / C. P. Sarkos (author)

    Publication date :

    1973


    Size :

    32 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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