Hyundai Heavy Industries (HHI) Group, Hyundai Glovis, the Liberian Registry, the Korean Register and their partners have successfully developed the world’s first Large Size and commercially viable liquified hydrogen carrier.
HHI Group’s Korea Shipbuilding & Offshore Engineering (KSOE) and Hyundai Mipo Dockyard (HMD) have received the necessary Approval in Principle (AIP) for a 20,000 m3 class liquefied hydrogen carrier from the Liberian Registry as flag State and Korean Register as Class Society. This ship design is the world’s first large size liquefied hydrogen carrier.
The key elements of this joint industry project (JIP) are the KSOE-developed liquefied hydrogen cargo treatment system and a hydrogen boil-off gas (BOG) treatment system using fuel cells. HMD advanced the basic design of the ship. Hyundai Glovis and G-Marine Service analyzed the economics and safety of liquefied hydrogen during storage and transportation.
According to the Hydrogen, Scailing Up report released in 2017 by the Hydrogen Council, the global hydrogen market is expected to grow to $2.5 trillion by 2050, accounting for 18% of the total energy demand. Accordingly, the Korean government also announced the “Road Map for Activating the Hydrogen Economy” last year, and is spurring the revitalization of the hydrogen economy in various industries such as shipbuilding, automobiles and batteries.
This ship design is characterized by the use of a double-structured vacuum insulated tank to improve insulation and minimize hydrogen BOG generated during operation. In addition, by adopting an electric propulsion system, hydrogen BOG can be used as fuel for fuel cells in the future.
In order to transport a large amount of hydrogen by ship, a liquefaction process that reduces the volume to 1/800 and increases stability is essential. Since hydrogen liquefies at a cryogenic temperature of -253°C, which is lower than LNG that liquefies at -163°C, a liquefied hydrogen carrier needs advanced cryogenic technology to stably preserve it.