Header_NO96

NO96 system

The concept

The primary and secondary membranes are made of Invar®, a 36% nickel-steel alloy, 0.7mm thick. The primary membrane contains the LNG cargo, while the secondary membrane, identical to the primary, ensures a 100% redundancy in case of leakage. Each of the 500mm wide Invar® strakes is continuously spread along the tank walls and is evenly supported by the primary and the secondary insulation layers.

NO96 concept
 

No96 Concept

NO96 evolutions: improving the thermomechanical efficiency of the system

GTT’s technologies are continually being optimised to meet the requirements of ship-owners and shipyards, while also complying with regulatory changes affecting the sector.

The perlite has been replaced by foam in NO96 L03 or by glass-wool in NO96 GW evolution. A set of reinforced boxes have also been developed in order to meet requirements for systems sustaining higher loads.

 

NO96

NO96 GW

NO96 L03

NO96 L03+

BOR*
(170K m3 vessel)

0.15%

0.125%

0.11%

0.10%

Main insulating material

Perlite

Glass-wool

Glass-wool and foam 130 kg/m3

Membranes

Invar® 0.7 mm

Support

Boxes with bulkheads: plywood

Boxes primary and top secondary with  bulkheads: plywood

Panels lower secondary: foam & plywood

Boxes with bulkheads: plywood

Panels: foam & plywood

Thickness

530 mm (primary box: 230 mm + secondary box: 300 mm)

* BOR is project dependent due to vessel size, tank arrangement and reinforcements.

 

NO96 video

NO96 GW video

NO96 L03 video