Name of the Project
Liquefied hydrogen carrier.

Location
Kawasaki Heavy Industries’ Sakaide Works, Sakaide City, Kagawa Prefecture, in Japan.

Project Owner/s
Multinational corporation Kawasaki Heavy Industries and chemicals manufacturer specialist Japan Suiso Energy.

Project Description
The project entails the construction of the world’s largest liquefied hydrogen carrier. The carrier will have a capacity of 40 000 m³.

The project will include:

• cargo tanks, with a total capacity of about 40 000 m³, for liquefied hydrogen. The tanks will use a high-performance insulation system to reduce the generation of boil-off gas (BOG) caused by natural heat ingress from the outside, allowing for the large-scale transportation of cryogenic liquefied hydrogen.
• an electric propulsion system, featuring a hydrogen-/oil-based dual-fuel generator engine, in addition to a conventional oil-based generator engine. The installation of a hydrogen gas supply system with a compressor and a heat exchanger allows for the BOG generated from the liquefied hydrogen cargo tanks to be used as a propellant, reducing CO₂ emissions during liquid hydrogen transport.
• a cargo handling system capable of loading and unloading large volumes of liquefied hydrogen. Double-wall vacuum-jacketed piping will keep the material at an extremely low temperature for efficient and safe transfer between the onshore facility and the liquefied hydrogen tanks on the vessel.

The vessel will require less power and has a high propulsion efficiency. The hydrogen fuel system, fuel supply system and cargo handling system for liquefied hydrogen and hydrogen gas have been risk assessed, and suitable safety measures have been taken to ensure that the liquefied hydrogen poses no risk to the crew, environment or structural integrity and soundness of the vessel.

Potential Job Creation
Not stated.

Capital Expenditure
Not stated.

Planned Start/End Date
No details available.

Latest Developments
None stated.

Key Contracts, Suppliers and Consultants
None provided.

Contact Details for Project Information
Kawasaki Heavy Industries, tel +81 3 3435 6621.
JSE, email info_jse@japansuisoenergy.com.