MOL tests show ships' engines can run in all load ranges

JAPAN's Mitsui OSK Lines (MOL) has confirmed through tests that increasing the output of an engine's auxiliary blower motor allows for continuous operation of a ship's main engine in all load ranges.

"Generally, the main engine of an ocean shipping vessel takes air into the combustion chamber using an auxiliary blower for low speeds or low load ranges, and a turbocharger for high speeds or in high load ranges.

"However, continuous operation of the engine in between ranges has been difficult due to degraded combustion and increased exhaust gas temperature caused by air shortage. MOL's recent tests have verified that increasing the output of the auxiliary blower motor ensures a sufficient air supply to allow continuous operation in all load ranges," it said in a statement.

MOL said that this technology is being utilised in its 'ISHIN-III' series of next-generation vessels that are part an initiative to reduce the environmental impact of its ocean shipping transportation, given that operating a vessel at a low speed reduces fuel consumption and CO2 emissions.

"Allowing for vessel operation without limiting load ranges opens up more opportunities for low-speed operation than ever before," it added.
(Source:www.schednet.com)