Fuel consumption of ships is related to hull roughness. The increasing high cost of fuel is the driving force behind the efforts that are expended in looking for methods, which would reduce hull roughness and would maintain a smooth hull surface profile during the designed life of a ship. One such desirable method involves the use of copper-nickel. This study examined a number of methodologies for applying Cu/Ni in sheet form. The welding of Cu/Ni clad steel was also evaluated in a shipyard environment. The cost differential between Cu/Ni sheathed and conventional painted hulls was determined for a large container ship. The economic analysis was based on 1980 cost figures and a specific application method of Cu/Ni hull sheathing. The results were 33.5% for the effective discounted cash rate of return and 4.2 years for the zero-interest breakeven point--against an initial incremental investment of $3.4 million using 46% tax rate.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Copper-Nickel Hull Sheathing Study


    Contributors:

    Publication date :

    1980


    Size :

    101 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    Copper-Nickel Sheathing Cost Study. Phase 3. Final Report

    E. W. Thiele / R. S. Powell | NTIS | 1987


    CORRESPONDENCE - Marks on copper and other sheathing

    Bingeman, John M. | Online Contents | 2001


    Sheathing member mounting apparatus and sheathing member mounting method

    SUZUKI YOSHIAKI | European Patent Office | 2017

    Free access

    SHEATHING MEMBER MOUNTING APPARATUS AND SHEATHING MEMBER MOUNTING METHOD

    SUZUKI YOSHIAKI | European Patent Office | 2020

    Free access

    ELASTIC MOLDED SHEATHING

    BUSSELS RAF / BOUMEN BEN / TREKELS BENNI et al. | European Patent Office | 2022

    Free access