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First EGR Order Up For MAN

Posted on November 9, 2011

MAN Diesel & Turbo has announced the first order for its second generation EGR system, to be applied aboard a Maersk Line container vessel – the 4500-teu new building #2358. The system will be fully integrated with the vessel’s main engine, a two-stroke MAN B&W 6S80ME-C9 type to be built by Hyundai Heavy Industries’ engine & machinery division. The EGR system enables the meeting of the IMO NOx Tier 3 emission levels set to become effective by Jan. 1 2016.

“The main focus has been on integration of the entire EGR system into one unit, which is a part of the engine as a charge-air cooler, said Søren H. Jensen, vice president and head of Research & Development at MAN Diesel & Turbo. “The EGR unit comprises a cooler, a scrubber, a water mist catcher and a blower unit, and is designed to be fitted on the engine in the same way as a charge-air cooler.

“Since the first-generation EGR was tested in service, we have achieved significant technical advances as well as improvement in performance,” he said. “We have optimized the performance of the EGR so that the system recirculates 40% of the exhaust gas so as to meet the Tier 3 reduction criterion.”

The new EGR generation comprises a compact design that entails only minor changes to the engine outline, to the extent that the new engine type does not require any major design changes by shipyards. The new building #2358 from Hyundai’s shipbuilding division is in the C-class series of 22 container vessels ordered by the Maersk Line and will be delivered in early 2013. Upon delivery, the vessel will serve the trade route between East Africa and the Far East. For a test period of three years, the engine will be operated partly with IMO Tier 3 NOx emission levels, the company said.

For more information: www.mandieselturbo.com

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