Large RoPax/RoRo vessels

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Solutions for large RoPax/RoRo vessels

Large RoPax vessels are those above 30,000 gt up to 75,000 gt and beyond. From a propulsion perspective there is little difference in the technology employed between RoRo and RoPax vessels, especially at larger sizes, but RoPax vessels have a much higher hotel demand. This difference can manifest itself in many ways and can influence energy and efficiency strategies. While large RoRo vessels are commonly equipped with 2-stroke main engines, a 4-stroke hybrid setup offers advantages in the form of added efficiencies and flexibility.

Key considerations for RoPax vessels

  • Operation profile with different timetables winter/summer causing substantially different propulsive power requirements.
  • Substantial hotel load needed for passenger facilities
  • Reliable operation with no disturbance in vessel’s timetable
  • Vessels are normally required to sail in restricted waters such as channels, emission control areas and in urban areas, meaning they require a reliable and fuel-efficient propulsion system with effective steering and manoeuvring capabilities
  • Zero emission operation in ports including arrival and departure with no visible smoke
  • Prepared for future low/zero emission fuels
  • Green operation/image of the vessel - passenger perception
  • Low onboard vibration- and noise levels for high passenger comfort

    A building block approach

    Reducing emissions and increasing operational flexibility are the main drivers behind the proposed propulsion system for larger Ropax vessels. It is based on a highly adaptable, modular propulsion concept that can be customised through a data-driven design process and offers advanced system functionalities that help you to address variable operation conditions.

    Hover or click on the symbols to reveal more information on the six parts of the integrated solution.

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    Typical system operational modes

    Large RoPax - system operational modes

    Normal Sailing and Manoeuvring
    Boost mode
    Zero emission mode
    Cross feeding mode
    At port on genset
    At port in green mode
    At port in shore connection

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