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Designed by Marinnov, the 19,000 cbm dual-fuelled vessel features GTT membrane tank technology and a propulsion system which facilitates high manoeuvrability and station-keeping. 

The Approval in Principle was announced yesterday (3 December) during Marintec in Shanghai, where Matthieu de Tugny, President of Bureau Veritas, Marine & Offshore commented: ‘This project underlines just how fast and far the industry is going to meet tomorrow’s challenges today and it is a great pleasure to hand over this approval for such an exciting design.’

The Quadelprop name tag reflects the vessel designs design and propulsion arrangements which include four azimuth (360°) thrusters fitted at each corner of the hull and four dual fuel generator sets installed in the engine room compartment and complemented by an energy storage system provide power to the ship and, more specifically, to the electric thruster motors.

These features will enable Quadelprop to maintain its position relative to the receiving ship so that the LNG transfer system is always within a safe working envelope. The dynamic positioning system also facilitates ship-to-ship LNG bunkering at anchorage and in waiting areas.

Marinnov highlights that the absence of mooring requirements with the receiving ship simplifies and shortens the overall duration of the bunkering operation and also allows the bunker vessel to immediately move away from the client ship in case of an emergency shut down and disconnection of transfer hoses.

Two LNG bunkering manifolds are provided: at amidships, portside, with large diameter connections allowing a max transfer flow rate of 2.000 cubic metres per house (cbm/h) and a stern bunkering manifold with smaller diameters allowing a transfer flow rate of 250 cbm/h. The starboard side amidships manifold is dedicated to LNG loading at terminal and is designed for high loading flow rate.

Technical consultancy Marinnov developed the design with engineering support from ship designer Marine Assistance. Both companies having a long experience working together and jointly developing innovative concepts of LNG fuelled ships and small-scale LNG vessels.

Arthur Barret, Marinnov Founder and Managing Director commented on the evolution of the Quadelprop concept: ‘The early development of the LNG bunkering market has seen several LNG bunker ships entering service which were not specifically designed for the main mission of bunkering.

‘I hope the industry is now ready to move to more dedicated and purpose-built and more cost-effective solutions enabling a lower cost of delivered LNG to benefit end users willing to shift to clean fuels.’

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