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The International Maritime Organization has announced a strategy to reduce greenhouse gas emissions to zero by the end of this century. With marine environmental regulations tightening worldwide, in December last year, the Japanese Ministry of Economy, Trade and Industry formulated its "Green Growth Strat- egy towards 2050 Carbon Neutrality". The strategy highlights the development of energy and power sourc- es that reduce the impact on the environment, including those for vessels powered by carbon free fuels such as hydrogen and ammonia.
A global leader in maritime powertrain technology, Yanmar was among the first companies to comply with environmental regulations with its development of dual-fuel marine engines. Looking to the future of powertrain tech- nology, Yanmar has developed a maritime fuel cell system that incorporates hydrogen fuel cell modules from Toyota’s MIRAI automobile. The system was installed into Yanmar’s EX38A FC pleasure boat for field testing.
The boat is the first to officially comply with the safety guidelines for hydrogen fuel cell vessels formulat- ed by the Ministry of Land, Infrastructure, Transport and Tourism in Japan. Yanmar aims to verify specific issues and solutions in a maritime environment for deployment of the maritime fuel cell system. Looking to the future, Yanmar has plans to scale the maritime fuel cell system by connecting multiple units. The system is planned to be deployed to larger vessels by 2025.
A few months later, on October 20th, 2021, (Osa- ka, Japan) – Yanmar Power Technology (YPT), a Group company of Yanmar Holdings Co., Ltd., again conducted the world's first 70 MPa high-pressure hydrogen refueling of a ship using a demonstration test boat equipped with a hydrogen fuel cell system. The test boat cruised on a route around the island of the Osaka-Kansai World Expo- sition 2025 and famous tourist spots on the city's coast.
The 70 MPa high-pressure hydrogen refu- eling was carried out in cooperation with Toyota Tsusho Corporation, using a specially licensed high-pressure facility and a newly developed pro- totype long hydrogen refueling hose. The 70MPa high-pressure refueling resulted in more than three times longer cruising time compared to the previous refueling process. The results will be utilized for the market deployment of hydrogen fuel cell systems as well as the study of hydrogen refueling infrastructure for ships.
YPT is developing a 300kW-class maritime fuel cell system incorporating fuel cell modules supplied by Toyota Motor Corporation, addressing the potential customer demands such as ones relating to the Carbon-Neutral Port concept of the Ministry of Land, Infrastructure, Transport and Tourism. Yanmar aims to obtain
a type approval from classification societies so that the system can be installed in various types of ships with global customers towards a planned launch to market in 2023.
Demonstration Test Boat Specifications
Model : EX38A (FC Prototype)
Gross Tonnage : 7.9 t
Length/Breadth : 12.4 m / 3.4 m
Propulsion Output : 250 kW
Fuel Cell Type : Polymer Electrolyte Fue Cell x 2 modules
Hydrogen Tank : 70M Pa x 8 tanks
Inspection Body : Japan Craft Inspection Organization