MAN Energy Solutions has received an order for six MAN 12V32/44CR main engines from China Merchant Heavy Industry (CMHI) for Les Alizés, Jan De Nul Group’s new 5,000-tonne floating installation crane vessel
Delivering a cumulative output of 43,200-kW, the common-rail engines will each feature an enhanced selective catalytic reduction system for IMO Tier III-compliance, and will meet the more stringent Euro Stage V-compliant NOx-emission limit.
MAN said the enhanced NOx-reduction rate is essential for the newbuilding to fulfil the ultra low emission vessel (ULEV) standard for better air quality, characterised by very low NOx and particle emissions.
MAN Energy Solutions head of four-stroke marine sales Lex Nijsen said the company has previously worked with Jan De Nul Group on many of its vessels and recently provided four 12V32/44CR engines to CMHI for a major semi-submersible project. “We look forward to working with our partners again in the commissioning of such a noteworthy vessel that truly begins a new era for the offshore installation sector.”
The 32/44CR includes MAN’s Ecomap feature which permits the engine to be programmed to run along different fuel consumption versus power characteristics, with each having its optimal efficiency at a different load point.
A high engine output is available at high ambient temperatures, as well as at the high exhaust-gas back-pressures resulting from the extensive exhaust-gas treatment equipment, which is mandatory for the ULEV notation.
Les Alizés will be used to build offshore wind projects. The crane vessel will be able to load out, transport and install multiple units of the largest and heaviest wind turbine foundations. As a crane vessel that floats, it is designed to install heavier and larger foundations into deeper waters and in more challenging seabed conditions.
Les Alizés will be built at CMHI’s shipyard in Jiangsu province, eastern China, and is scheduled to enter operation in 2022.
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