AiP for QUADELPROP to Marinnov and GTT Home Press release Approval in Principle for the 'Quadelprop' 19,000 cbm LNGBV Concept Dec. 4 2019 LinkedIn Twitter Facebook share Marinnov’s highly manoeuvrable dual-fuel LNG bunkering vessel (LNGBV) concept is one of the most sophisticated and largest capacity liquefied gas bunkering designs to be approved to date. Paris La Défense, 4th December 2019 Bureau Veritas Marine & Offshore has granted approval in principle to the innovative design for a 19,000 cbm LNG bunkering vessel with a GTT membrane type tank – the ‘Quadelprop’.The name Quadelprop reflects features in the design and propulsion arrangements to enable high maneuverability and station keeping:Four azimuth (360°) thrusters fitted at each corner of the hullFour dual fuel generator sets installed in the engine room compartment and complemented by an energy storage system provide power to the ship and in particular to the electric thruster motorsThe azimuth capability is enhanced and controlled by a redundant dynamic positioning (DP) systemSpeaking at Marintec in Shanghai today during the presentation of the AiP to Marinnov, Matthieu de Tugny, President of Bureau Veritas, Marine & Offshore said: ‘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 high precision of the design’s DP system allows Quadelprop to keep position relative to the client ship so that the LNG transfer system is always within a safe working envelope. Thanks to that DP system, ship-to-ship LNG bunkering operations can also be envisaged safely at anchorage and in waiting areas. The absence of mooring requirements with the client ship not only simplifies and shortens the overall duration of the bunkering operation but also allows the bunker ship 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 m3/h and a stern bunkering manifold with smaller diameters allowing a transfer flow rate of 250 m3/h. The starboard side amidships manifold is dedicated to LNG loading at terminal and is designed for high loading flow rate.The vessel is particularly well adapted to coastal navigation and port operations with exceptional maneuvering capabilities and a very high level of safety with a full ‘B/5’ wide double hull protecting the cargo tanks area and the engine room as well as a full redundancy of main and auxiliary equipment required by the Bureau Veritas DP2 notation.Claude Maillot Senior Vice President, Bureau Veritas: ‘It is appropriate that we present this approval at Marintec – the leading showcase for Marine Technology this year - as China will be building so many of the ships that will be needed to meet the challenge of creating a cleaner shipping industry.’Bespoke 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 fueled ships and small-scale LNG vessels.Arthur Barret, Marinnov Founder and Managing Director explain that the Quadelprop concept is the fruit of many years' observation and consideration of the challenges of LNG bunkering: ‘The early development of the LNG