MOL achieves CO2 reduction across all load ranges

13 Oct 2010

Mitsui O.S.K. Lines (MOL) has verified continuous operation of the main engine in all load ranges by increasing the output of the engine’s auxiliary blower motor.

Generally, the main propulsion engine onboard a deep-sea 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 range 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.

Low-speed vessel operation is an effective way to reduce fuel consumption and CO2 emissions and by enabling a vessel to operate without limiting load ranges opens up more opportunities for low-speed operation than ever before. It is also one of the basic technologies for the’ISHIN-III’ series of next-generation vessels that MOL has announced as an initiative to reduce the environmental impact of its shipping operations.

MOL is continuing to study ways to apply the results of this test to its fleet as it works towards reducing CO2 emissions.

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