ClassNK has successfully completed a Technology Qualification (TQ) for Ship to Shore Couplers designed for the transportation of liquefied hydrogen (LH2), a project jointly developed by Kawasaki Heavy Industries, Ltd. and TB Global Technologies, Ltd.
Consequently, the relevant certificate has been issued, marking a significant milestone as it is the first such certification for liquefied hydrogen marine equipment by ClassNK.
New concepts and designs
The development of liquefied hydrogen carriers, aimed at facilitating large-scale and efficient transport, is gaining momentum, with the goal of establishing a hydrogen supply chain considered vital for a sustainable, low-carbon future.
To support the widespread adoption and commercialisation of this novel technology, ClassNK has released Guidelines for Technology Qualification. These guidelines outline a certification process tailored for technologies based on innovative concepts and designs not yet covered by existing codes and standards.
Jointly developed LH2 coupler
The product under review, a flanged-style coupler, has been developed for interfacing the cargo handling piping
The product under review, a flanged-style coupler, has been developed for interfacing the cargo handling piping of a liquefied hydrogen carrier with a marine loading arm at a liquefied hydrogen site.
This advancement is a collaboration between Kawasaki Heavy Industries and TB Global Technologies, aiming to enhance efficiency in hydrogen transport.
Requirements for liquefied hydrogen carriers
ClassNK conducted a comprehensive assessment of this product in accordance with its Guidelines for Technology Qualification, the Guidelines for Liquefied Hydrogen Carriers, and other pertinent standards.
Ensuring the safe transfer of liquefied hydrogen at extreme cryogenic temperatures of -253°C involved various safety evaluations and risk assessments, including rigorous qualification tests employing liquefied hydrogen at the Noshiro Rocket Testing Centre of the Japan Aerospace Exploration Agency (JAXA). Upon meeting all defined safety requirements, the technology qualification certificate was granted.
Moving forward, ClassNK intends to further support the integration and advancement of such technologies by continuing technical verification of pioneering initiatives, thus contributing to the global adoption of hydrogen as a cleaner energy source.
