ClassNK Issues AIP for LNG Bunkering Vessel Design
Classification society ClassNK has issued Approval in Principle (AIP) for a 7,500 cbm LNG bunkering vessel designed by Hanjin Heavy Industries & Construction Co., Ltd. This design is the result of joint research carried out by Hanjin Heavy Industries & Construction Co., Ltd. and ClassNK to improve the efficiency of LNG bunkering vessels.
The choice of LNG as ship fuel has become increasingly prevalent in the industry, and is expected to become one of a primary source of fuel in the near future. However, LNG fueled vessels are currently largely dependent on existing infrastructure comprised mainly of fixed bunker locations, potentially limiting their operations. Recognizing the greater flexibility that LNG bunker vessels could provide through ship-to-ship bunkering, Hanjin Heavy Industries & Construction Co., Ltd. and ClassNK worked together to improve the viability of this technology. The design employs type-C bi-lobe tanks, improving on cargo capacity to allow for greater efficiency and productivity. The AIP was granted after confirming the design complies with ClassNK’s Rules and Guidance for the Survey and Construction of Steel Ships.
This AIP allows the design to be considered for further individual projects, where tests on the hull structure scantling and direct stress analyses will be carried out to ensure the structural integrity of each specific design is in line with class rules and the International Code for the construction and equipment of ships carrying liquefied gases in bulk (IGC Code).
The choice of LNG as ship fuel has become increasingly prevalent in the industry, and is expected to become one of a primary source of fuel in the near future. However, LNG fueled vessels are currently largely dependent on existing infrastructure comprised mainly of fixed bunker locations, potentially limiting their operations. Recognizing the greater flexibility that LNG bunker vessels could provide through ship-to-ship bunkering, Hanjin Heavy Industries & Construction Co., Ltd. and ClassNK worked together to improve the viability of this technology. The design employs type-C bi-lobe tanks, improving on cargo capacity to allow for greater efficiency and productivity. The AIP was granted after confirming the design complies with ClassNK’s Rules and Guidance for the Survey and Construction of Steel Ships.
This AIP allows the design to be considered for further individual projects, where tests on the hull structure scantling and direct stress analyses will be carried out to ensure the structural integrity of each specific design is in line with class rules and the International Code for the construction and equipment of ships carrying liquefied gases in bulk (IGC Code).
