This report describes the first part of a program to determine the parameters required for systems which utilize the CAVIJET (cavitating waterjet) method to remove fouling paint and rust from ship hulls, propellers, appendages and other components. System, operating, and performance characteristics, with emphasis on a hand-held system comparable to those now used during the dry dock cleaning of a ship, were developed under this program. Laboratory fouling removal rates of 900 to 1030 square feet/hr were achieved on submerged test panels heavily encrusted with barnacles and other marine growths, using 1/4-in. or dual 1/8-in. cavitating water jet nozzles, at pressures of 1500 to 2000 psi. These rates are comparable to sandsweeping methods, with none of the attendant pollution problems.


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    Title :

    Parameters for a Ship Hull Cleaning System Using the Cavitating Water Jet Method


    Contributors:
    A. F. Conn (author) / S. L. Rudy (author)

    Publication date :

    1975


    Size :

    142 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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