Engines for 'Clean Design' ROV Mothership

Wärtsilä Corporation will supply main engines for a new offshore support vessel contracted by the Norwegian subsea operations company Geo ASA. The vessel Aker ROV 06 will be constructed at Aker Yards' Søviknes shipyard in Norway, with delivery due in May 2007. Its main engines will be four six-cylinder Wärtsilä 32 diesel engines with a combined output of 11,520 kW at 720 rpm. Important requirements concerning the choice of engines included low fuel consumption and fulfillment of the Clean Design notation of DNV classification.

The Clean Design notation sets high environmental standards for the control and limiting of all types of emissions and discharges. These standards involve choice of equipment, its installation design, and also vessel's operational procedures. The vessel will be employed in subsea operations, primarily for the offshore oil & gas industry. It will be capable of worldwide operation, including the northern waters. The vessel will principally serve as a mothership for unmanned remotely-operated subsea vehicles (ROV) which can be launched by crane over both sides of the vessel as well as through a moon pool.