What's Happening?
ClassNK has granted an Approval in Principle (AiP) for a new spray form insulation system designed for IMO Type B tanks used in LNG and ammonia-fueled vessels. This system, developed by Nihon Shipyard
Co., Ltd. and Hankuk Carbon Co., Ltd., has been recognized for its regulatory and safety compliance. The maritime industry is increasingly focusing on decarbonization, and the development of alternative-fuel vessels is a significant part of this effort. Traditionally, IMO Type C tanks have been preferred for LNG-fueled ships due to their cost-effectiveness and productivity. However, IMO Type B tanks are now being considered for large-capacity fuel needs, offering better cargo efficiency and outfitting flexibility. ClassNK's approval follows a safety review based on its 'Rules and Guidance for the Survey and Construction of Steel Ships', which includes the IGC and IGF Codes.
Why It's Important?
The approval of this new insulation system is a critical step in advancing the maritime industry's decarbonization goals. As the industry seeks to reduce its carbon footprint, the adoption of alternative fuels like LNG and ammonia is becoming more prevalent. The new system's approval could lead to broader acceptance and implementation of IMO Type B tanks, which are more efficient for large vessels. This development not only supports environmental sustainability but also enhances the operational efficiency of shipping companies. By facilitating the use of alternative fuels, the maritime sector can significantly reduce greenhouse gas emissions, aligning with global environmental targets.
What's Next?
With the approval in place, the next steps involve the potential adoption of this insulation system by shipbuilders and operators. As the industry continues to innovate, further developments in fuel technology and tank design are expected. Stakeholders, including shipowners and regulatory bodies, will likely monitor the system's performance closely. The success of this system could pave the way for more widespread use of alternative fuels in maritime transport, influencing future regulatory standards and industry practices.








