Recently, CSSC’s 711 Research Institute successfully achieved full-load stable operation of a 270mm bore ammonia-hydrogen engine principle prototype. This prototype successfully passed the principle acceptance test by China Classification Society (CCS), marking an important step forward for China in the field of high-power marine zero-carbon fuel engine technology.
This prototype was independently developed by the 711 Research Institute, which successively overcame technologies such as active pre-chamber jet flame ignition, and independent controllable supply and injection of ammonia-hydrogen fuel. It effectively solved problems like misfire, afterburning, knocking, and deflagration caused by long flame propagation distances under large bore conditions, successfully achieving advanced indicators of 345kW single-cylinder power and 2.4MPa average indicated pressure (IMEP) for the engine.
The successful development of the ammonia-hydrogen engine principle prototype is another major achievement by the 711 Research Institute in the field of /zero-carbon fuel marine power, following the domestic first high-substitution-rate marine methanol medium-speed engine and the domestic first high-performance marine ammonia-diesel dual-fuel medium-speed engine. The 711 Research Institute will continue to strengthen innovative development, support the green transformation of marine power, and actively serve the national strategy of building a strong maritime country.
