- GTT Introduces 1 barg Tank Design Pressure for LNG-Fuelled Vessels.
- Mark III Flex Technology Advances with 1 barg Pressure Design.
- Maritime Industry Benefits from GTT’s 1 barg LNG Tank Innovation.
GTT, in collaboration with an Asian shipyard, has announced the first-ever implementation of a 1 barg tank design pressure for a series of twelve newly ordered LNG-fuelled container vessels. These vessels will be equipped with GTT’s advanced Mark III Flex technology, setting a new standard for large LNG fuel tanks in the maritime industry, reports GTT.
Enhanced Tank Performance with 1 barg Design Pressure
The new 1 barg design pressure will allow operations at up to a maximum relative pressure of 1 barg whereas previously the maximum allowed relative pressure was 0.7 barg, which clearly improves LNG fuel tank performance mainly for tanks of a volume over 3,000 m³.
Previously it had utilized a 2 barg design pressure on smaller capacity tanks only but now for the first time, it is carrying out it on larger tanks. The technology provides several advantages to the shipowners.
Increased Pressure Holding Time
The 1 barg design pressure allows an extended pressure operational range, which will help improve the holding time of LNG within the tank. It will minimize unnecessary gas burning during periods of minimal activity, making it a more efficient and friendly approach to the environment.
Facilitating Bunkering of Warmer LNG
More importantly, vessels of this type can bunker at higher temperatures while their choices of available fuel suppliers now become wider. This flexibility in the pressure level and temperature of LNG allows shipowners to seek it anywhere they can for better optimization of refuelling processes.
Supporting Compliance with Future Port Regulations
This technology positions LNG-fueled ships in the ambient context of new port regulations, like those outlined in the FuelEU Maritime initiative. This means the new regulations impose the obligatory use of shore-side electricity – often referred to as cold ironing. With the low boil-off rate of GTT’s Mark III Flex technology and the additional holding time of 1 barg design pressure, vessels will be able to stop their LNG consumption during port stays fully based on shore-side power.
This development will then allow shipowners to enhance both their environmental performance and efficiency in terms of LNG consumption, according to new carbon intensity standards set by the maritime industry.
A Commitment to Innovation and Sustainability
Jean-Baptiste Choimet, CEO of GTT, stated: “This technological advancement reflects our ongoing commitment to providing practical solutions that meet the evolving requirements of the maritime industry. By introducing the 1 barg tank design pressure, we aim to enhance the operational capabilities of large LNG fuel tanks fitted with GTT’s Mark III technology and provide ship-owners with the flexibility required to adapt to regulatory changes.”
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Source: GTT
