GTT’s NO96 containment system gets upgrade

France’s GTT, the world’s largest LNG tank maker, says it has upgraded its NO96 cargo containment system to further slash the guaranteed boil-off gas rate.

The NO96 Super+ has recently received approval in principle from the classification society Bureau Veritas.

“The new technology integrates insulating reinforced polyurethane foam (R-PUF) panels instead of plywood boxes, used for both the primary and secondary insulation spaces, to reduce the heat ingress inside the tank,” GTT said.

In addition, the new system has glass wool flat joints between adjacent foam panels to optimize the behavior of the system and ensure its best thermal performance, according to the firm.

NO96 Super+ maintains the main features of the NO96 technology, in particular the principle of double invar metallic membranes and the mechanical anchors fixing the insulating panels to the inner hull.

With this innovation, GTT reduces once again the evaporation of the cargo during operations, it said.

NO96 Super+ offers a guaranteed boil-off rate of 0,085%V/d for the current standard size design of LNG carrier of 174,000 cbm, GTT said.

Moreover, for larger capacities such as 200,000 cbm, the system achieves further reductions down to 0,08%V/d due to scale effects, it said.

GTT said it has completed the first mock-up of the new technology in February.

The firm expects final class approval by mid-2021.

“With the introduction of NO96 Super+ technology, GTT demonstrates its ability to continuously innovate and upgrade its technologies to meet our customers’ requirements,” GTT’s chief executive Philippe Berterottière, said.

“Reducing the boil-off rate is key to the industry at a time when shipowners and shipyards face increasing economic and regulatory challenges,” he said.

Most Popular

Yang Ming books LNG-powered containerships in South Korea

Taiwan’s Yang Ming Marine Transport has decided to order LNG dual-fuel container vessels from South Korea's Hanwha Ocean as part of its ongoing fleet optimization plan.

Sabah to take stake in Petronas’ third FLNG

SMJ Energy, owned by the Sabah government, has signed a heads of agreement with Malaysian energy giant Petronas to take a 25 percent stake in the latter's third floating LNG production unit.

Japan’s LNG imports drop in June

Japan’s liquefied natural gas (LNG) imports dropped by 2.8 percent in June compared to the same month last year, according to provisional data released by the country’s Ministry of Finance.

More News Like This

GTT, partners to develop new LNG carrier

French LNG containment giant GTT has signed a joint development project with seven firms to develop a 200,000-cbm LNG carrier.

GTT clinches tank gig for Capital’s LNG-powered containerships

French LNG containment giant GTT has secured a tank design order for six Capital's LNG-fueled container vessels.

GTT clinches new LNG tank gig

France’s GTT has secured a new tank design order from HD Korea Shipbuilding & Offshore Engineering for one liquefied natural gas (LNG) carrier.

GTT, HD Hyundai Heavy to advance LNG carrier design

French LNG containment firm GTT signed two joint development projects with South Korean shipbuilder HD Hyundai Heavy Industries, aimed at advancing the design of LNG carriers.