Damen Reveals New Offshore Support, Submarine Rescue Vessel Concept

  • Our Bureau
  • 08:23 AM, January 29, 2020
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Damen Reveals New Offshore Support, Submarine Rescue Vessel Concept

Dutch shipbuilder Damen has developed a new concept vessel – the Offshore Support Vessel (OSV) 9020 which features a stable platform with crew accommodation, low carbon emissions, alternate fueling and various support options including submarine rescue.

“We were approached by several different operators at the same time, all looking for slightly different offshore capabilities, but similar enough that their requirements could be met with a conceptual standard platform,” says design & proposal engineer Mark Couwenberg.

“The thinking behind the OSV 9020 draws upon proven technology, that can be tailored to individual requirements via modularization,” he said. The vessel has been designed to perform a variety of offshore tasks both at surface level and subsea.

The vessel can be fitted with a moonpool-deployed saturation dive system to allow diving operations at offshore crane, a stern A-frame and an offshore access system. The vessel can also act as a submarine rescue vessel. For this, submarine rescue gear is placed on deck. To ensure suitability for this scope of work, the available vessel accommodation, manoeuvring systems and dive support systems are crucial features, a Damen release said.

Damen Reveals New Offshore Support, Submarine Rescue Vessel Concept

Accommodation is a key feature for the success of any offshore operation. The OSV 9020 provides living space for up to 120 persons on board. Interior design is designed to ensure those on board will quickly feel at home, with lots of possibilities to personalise their stay on board.

A helicopter deck is integrated in the design, further increasing the vessel flexibility.

The vessel profile ensures low wind catch. The four identical azimuthing thrusters are arranged symmetrically: two on the stern and two on the bow. This ensures maximum station-keeping performance while avoiding high noise levels in the accommodation.

The diesel generators are supported by a battery pack. The electric system is designed to operate safely with closed bus-ties. This makes it safely possible to have less engines running, resulting in reduction of fuel oil consumption and harmful emissions with up to 20% and less maintenance.

Also with clean, sustainable operations in mind, the vessel is fitted with a hybrid power generation system, resulting in low emissions. The vessel can optionally be delivered to operate on green methanol, produced from biological waste streams. This allows reduction of well-to-propeller CO2 emissions by approximately 70%.

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