Japan Engine Corporation (J-ENG) is poised to launch what it claims is the first functional full-scale commercial ammonia engine.
Engine tests were carried out for three days last week at J-ENG’s factory, under the supervision of Nippon Yusen Kaisya (NYK Line), Nihon Shipyard Co (NSY), Japan Marine United Corporation (JMU) and Nippon Kaiji Kyokai (ClassNK).
The engine will be shipped in October and installed on an ammonia-fuelled medium gas carrier being constructed by JMU Ariake Shipyard. The vessel is scheduled to enter service in 2026.
A series of performance verification tests were performed for the dual-fuel engine. Ammonia fuel operation mode and heavy fuel oil operation mode were tested, as well as post-operation inspections of major components. The engine’s environmental performance and safety were certified by ClassNK.
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