Dual-fuel MAN L23/30 engine passes TAT

The TAT included tests of the engine’s SaCoSone alarm and safety system; dual-fuel safety concept, including a test of the pilot-fuel system; load-step performance; and a components inspection. The five-cylinder test engine, where the main injector valve is also used for the injection of pilot oil, had an output of 125kW per cylinder at a nominal speed of 720/750 RPM.

Finn Fjeldhøj – head of small-bore, four-stroke engineering at MAN Diesel & Turbo, said: “The L23/30DF covers a power range of 625-1,200kW, which makes it particularly attractive for such ocean-going vessels as bulkers of most sizes, general cargo ships, chemical tankers, and smaller LNG-carriers, as well as ships operating in ports and near the coast.”

The MAN L23/30DF engine, which can provide up to 110% power output in both gas and fuel modes, was also granted a certificate for compliance with IMO Tier III regulations in gas mode without any after-treatment equipment.

The test was carried out at CSSC Marine Power (CMP) in Zhenjiang, China, in the presence of the industry’s main classification societies.

ESL Shipping has ordered the first six L23/30DF GenSets for two 25,000-dwt cargo carrier newbuilds, currently under construction at CSC Jinling shipyard in China.

By Rebecca Jeffrey