This report examines the feasibility and impact of retrofitting the bulbous bow on a general cargo ship, in terms of the energy efficiency operational index (EEOI), in the areas of Western Europe and the Eastern Mediterranean. Three ship forms were developed and analysed: with a bulbous bow, without a bulbous bow, and with a modified bulbous bow. The goal in developing the ship forms and conducting the analysis was to achieve minimal differences in the ship’s characteristics with the same volumetric displacement, aided by PolyCAD software. A route was selected between two ports: Varna and Rotterdam. The labour intensity of the bulbous bow retrofitting process was evaluated and approximate values of labours costs and cost for the task were determined. The results obtained for resistance during ship motion, EEOI, and fuel consumption reductions, or increases, were compared against the retrofitting values. The return cost of retrofitting is evaluated and measured in terms of fuel saved.


    Access

    Download


    Export, share and cite



    Title :

    Retrofitting the Bow of a General Cargo Vessel Andevaluating Energy Efficiency Operational Index


    Contributors:


    Publication date :

    2023




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown




    Inland waterway cargo vessel energy efficiency in operation

    Milan Kalajdžić / Matija Vasilev / Nikola Momčilović | DOAJ | 2023

    Free access



    CARGO VESSEL

    KOMURA ATSUSHI / INOUE YUKIYA / OHASHI TETSUYA et al. | European Patent Office | 2022

    Free access

    CARGO VESSEL

    ARAKI MANABU / ARAKI TORU | European Patent Office | 2019

    Free access