Medium RoPax/RoRo vessels

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Solutions for medium RoPax/RoRo vessels

Medium RoPax vessels are those between 10,000 and 30,000 gt and their propulsion power requirements are similar to that of comparable freight RoRo vessels, but there is a considerable increase in the hotel load needed. 4-stroke medium-speed engines feature in all but the smallest ships, where a high-speed engine may be used. LNG and dual-fuel engines have made considerable inroads into RoPax vessels in almost every size bracket as they offer an instant reduction in carbon emissions even when burning fossil-based fuels.

Key considerations for double ended RoPax vessels

  • Operation profile with a fixed timetable and many port calls requiring efficient manoeuvring capabilities.
  • Possibility for substantial use of green energy by shore charging during port stays.
  • Reliable operation with no disturbance in vessel’s timetable.
  • Vessels are sailing on short routes, typically 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.
  • Operation with zero emission in ports and partly during sailing, pending route length and amount of electric energy charged during port stay.
  • 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

        Medium RoPax - system operational modes

        Normal sailing and manoeuvring
        Low speed sailing
        Boost mode
        Green mode
        At port ramp on genset
        At port ramp in green mode
        At port resting

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