Hydrogen genset granted AiP

The technology is designed for a 160,000m3 liquefied hydrogen carrier developed by Kawasaki Heavy Industries (KHI). ClassNK has already issued AiPs for the vessel’s integrated design, cargo containment system, cargo handling systems, and dual fuel main boilers that use hydrogen boil-off gas as fuel.

ClassNK carried out the design review based on its Part N of Rules for the Survey and Construction of Steel Ships incorporating the IGC Code, and its Guidelines for Liquefied Hydrogen Carriers incorporating the IMO’s interim recommendations for carriage of liquefied hydrogen in bulk. In addition, a comprehensive safety assessment was conducted.

According to KHI, the dual fuel generator can switching between hydrogen and low-sulphur fuel oil flexibly, and when hydrogen fuel is selected, boil-off gas naturally evaporated from the ship’s liquefied hydrogen cargo tanks is used as the main fuel at a calorie-based mixed ratio of 95% or higher to generate and supply electricity in board. The technology is expected to reduce greenhouse gas emissions from the ship significantly.

ClassNK will actively continue to take part in advanced initiatives toward decarbonization and also support the decarbonization of the entire maritime industry by incorporating the knowledge gained through collaboration with front runners into rules and guidelines.