KRISO, Hylium Industries, POSCO and KSOE receive an approval in principle (AIP) from the Korean Register (KR) for the liquid hydrogen fuel tank for ships.
Korea Research Institute of Ships & Ocean Engineering (KRISO), Hylium Industries, Inc (Hylium), POSCO, and Korea Shipbuilding and Offshore Engineering (KSOE) have been granted an approval in principle (AIP) by the Korean Register (KR) for liquid hydrogen fuel tank for ships. The AIP attainment will serve as the first step in developing the hydrogen-powered shipbuilding industry in South Korea. The Korean Register certified two types of the maritime liquid hydrogen fuel tank, one made of 316L stainless steel and one made of 316HN stainless steel material. The 316L stainless steel is a common…
The Korean Register certified two types of the maritime liquid hydrogen fuel tank, one made of 316L stainless steel and one made of 316HN stainless steel material.
The 316L stainless steel is a common austenitic stainless steel that can be directly applied to the production of liquid hydrogen storage containers that need to be maintained at a temperature as low as -253°C. While 316HN stainless steel developed by POSCO is a next-generation steel that further solves the hydrogen embrittlement problem commonly faced in production of liquid hydrogen storage containers. *Hydrogen Embrittlement occurs when metals become brittle as a result of the introduction and diffusion of hydrogen into the material.
In addition to the designing stage, the four companies successfully completed the first prototype of the 400kg capacity liquid hydrogen fuel tank for ships made of 316L stainless steel at the KRISO Offshore Industries R&BD Center in Geoje. Korea's first maritime liquid hydrogen fuel tank’s prototype is drawing attention as it has a number of new design specifications that give a glimpse into the alliance’s creative technology.
In the future, KRISO, POSCO, KSOE, and Hylium Industries will promote commercialization of liquid hydrogen-powered ships through active advancement of developed technologies. The alliance plans to demonstrate the new eco-friendly ships, as well as build an R&D shipbuilding infrastructure in Mokpo, Jeollanam-do area of South Korea.
In September of 2021 the four companies signed a Memorandum of Understanding (MOU) for “joint development of liquid hydrogen fuel tanks for ships”. Through this agreement, the four organizations decided to cooperate on development of liquid hydrogen fuel tanks and fuel supply systems for maritime application, development of stainless steel materials for storing and transporting liquid hydrogen, manufacturing of liquid hydrogen fuel tanks, and commercialization support of liquid hydrogen propulsion ships. The alliance plans to test-produce liquid hydrogen fuel tanks for small ships and expand production to large ships in the future.