This paper deals with experimental approaches for enhanced understanding of the hydraulic performance of a hybrid pick-up device developed at KRISO. The experiments were conducted in a 2-D flume tank. The hydraulic nodule lifter of the hybrid pick-up device consisting of water-jet piping and baffle plates was manufactured and tested. Flow rate of water-jets, tow speed, bottom clearance, and position and shape of baffle plates were chosen as experiment parameters. Through a series of experiments, the pick-up efficiency of the hydraulic lifter has been analyzed as function of the experiment parameters, and operation condition assuring high pick-up efficiency has been identified. In order to investigate the working principle of water-jets, the bottom pressures fluctuating due to water-jets were measured with varying conditions of water-jets flow rate, tow speed and bottom clearance. The characteristics of bottom pressure distribution were studied in correlation with the pick-up efficiency. It was recognized that there is a correlation between high pick-up efficiency and longitudinal pressure distribution.


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    Title :

    Experimental study on hydraulic performance of hybrid pick-up device of manganese nodule collector


    Contributors:
    Hong, Sup (author) / Choi, Jong-Su (author) / Kim, Jin-Ha (author) / Yang, Chan-Kyu (author)


    Publication date :

    1999


    Size :

    9 Seiten, 5 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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