Gaztransport and Technigaz (GTT), the French LNG storage technology company, and the Shanghai Merchant Ship Design and Research Institute (SDARI) have received approval from the European classification society DNV for their LNG-powered bulk carriers.
GTT designed the tank up to the supporting steel wall while the tank’s integration into the vessel was studied by SDARI, a subsidiary of China State Shipbuilding Corp.
This Approval in Principle (AiP) confirms that the membrane fuel tank complies with safety regulations and is technically feasible onboard LNG-fueled bulk carriers (Newcastlemax),” said GTT.
“This design improvement offers increased autonomy and drastically reduces sulphur and greenhouse-gas emissions compared to a standard Newcastlemax design,” it added.
“Furthermore, it offers great flexibility as the vessel can sail a Brazil-China round trip with one LNG bunkering,” explained GTT.
“This reliable solution, with optimal LNG storage, does not affect the available cargo space nor the vessel's accommodation,” stated the French company.
GTT said that SDARI, along with class society DNV, studied the structural arrangement of the LNG tank above of the engine room, the dimensioning of the LNG injection system from the tank to the engines, as well as the interface of the LNG bunker station.
Aspects relating to naval architecture, such as damaged stability, were also reviewed by DNV.
“SDARI is delighted to receive this Approval in Principle from DNV,” said Wang Gangyi, the Chief Engineer of the Chinese firm.
“This type of vessel is another R&D achievement that combines the latest technology in the market enabling future shipping in line with carbon peak and carbon neutral targets,” added Wang.
Morten Lovstad, Vice President and Global Business Director for Bulk Carriers at DNV, said this new design was more proof of the many innovations taking place to facilitate decarbonisation within the transportation of dry bulk cargo.