GTT has been awarded an Approval in Principle (AiP) from ClassNK for a new design of LNG fuel tank.
The tank is of a 2 bar gauge design pressure, claimed to be ideal for cruise ships fitted with a Mark III membrane tank.
This represents an upgrade of the Mark III system with a design pressure up to 2 bar gauge (barg) for LNG fuel applications, offering improved pressure holding capabilities and increased operational flexibility, especially during bunkering operations.
ClassNK’s AiP confirms that this new tank solution complies with the applicable safety regulations. GTT and ClassNK have studied, in particular, maximum tank dimensions, tank structural reinforcements, tank operating pressure during in-service operations, as well as aspects related to potential emergency situations.
Philippe Berterottière, GTT Chairman and CEO (pictured), said: “We are pleased to be granted with this approval by ClassNK with whom GTT has had a close partnership for many years. This approval once again highlights the constant evolution of our technologies to meet the demands of the industry.
“Thanks to our innovation efforts, GTT membrane solutions are now applicable to a wider spectrum of LNG-fuelled vessels, thus contributing increasingly to make the shipping industry greener,” he said.
Hayato Suga, ClassNK’s Executive Vice President, Director of Plan Approval and Technical Solution Division, added: “In view of the increasing role of LNG as fuel to shipping de-carbonisation, the industry expects more options to implement the technology on board.
“ClassNK is glad to have completed the safety evaluation on GTT’s new design, which has been developed responding to the industry needs. I hope that the AiP will encourage the uptake of evolving technology,” he said.