GTT has received a new order notification from a Korean shipyard for the tank design of a new 174,000 m3 LNG carrier (LNGC), to be built on behalf of a European shipowner. The vessel’s delivery is expected in Q1 2021.
The LNG tanks of the vessel will be equipped with the proven Mark III Flex containment system developed by GTT.
The ship owners and shipyard’s names are confidential.
Mark III membrane system is a cryogenic liner directly supported by the ship’s inner hull.
This liner is composed of a primary metallic membrane positioned on top of a prefabricated insulation panel including a complete secondary membrane.
The primary membrane is made of corrugated stainless steel 304 L, 1.2mm thick. It contains the LNG cargo and is directly supported by and fixed to the insulation system. The standard size of the corrugated sheets is 3m x 1m. This membrane is folded to create corrugations. The knot is the intersection of the corrugations (small and large corrugations).
The secondary membrane is made of Triplex, a composite laminated material: a thin sheet of aluminum between two layers of glass cloth and resin. It is positioned inside the prefabricated insulation panels between the two insulation layers.