https://www.nedo.go.jp/news/press/AA5_101895.html

Under support of NEDO, Kawasaki Heavy Industries, Yanmar Power Solutions and Japan Engine Corporation have developed installed a demonstration liquefied hydrogen fuel supply facility and tested a marine hydrogen engine on land.

Kawasaki Heavy Industries stores and gasifies liquefied hydrogen and supplies hydrogen fuel at high or low pressure to each company’s engines. This enables the operation of engines that meet various portfolio needs and are suitable for a variety of shipboard applications, such as two-stroke main engines, four-stroke auxiliary engines, or four-stroke main generator engines for electric propulsion vessels. Kawasaki Heavy Industries and Yanmar Power Solutions have achieved zero-emission hydrogen combustion in a medium-speed four-stroke engine. Furthermore, development of a low-speed two-stroke engine is being developed by Japan Engine. A common feature of the engines from all three companies is that they are expected to significantly reduce GHG emissions, and they are dual-fuel, switching between hydrogen and diesel fuel, ensuring redundancy.

Main Specifications of the engines:

• engine speed: 720 min-1, 900 min-1, maximum 167 min-1
• rated output: 2600 kWm, 800 kWm, maximum 5610 kW

Photo: the Kawasaki engine