Page 29: of Maritime Reporter Magazine (July 2014)

www.marinelink.com 29 ates with seawater in the open loop system, representing an investment of nearly $40.7m. The goal is a reduction of the harmful emissions. However, the installation of scrubbers from Wärtsilä removes up to 98% of SOx from vessel emissions and reduces harmful particu- late matter by up to 85%, meaning that the ferries can operate using convention- al bunker fuel. The four separate Wärt- silä open loop scrubber systems will en- sure the ship’s full compliance with the

International Maritime Organization’s (IMO) MARPOL Annex VI regulations, and with EU Directive 2055/33/EC.

The fi rst ferry to be retrofi tted is the

Color Line Super Speed 2, which will be carried out in April this year. In Janu- ary 2015 follows the Color Line Super

Speed 1, Color Magic and Color Fan- tasy. All works will be carried out in a

Danish shipyard.

The viability of scrubbers has been ac- knowledged by the IMO, the European

Union, and in February 2012 by the U.S.

Environmental Protection Agency and most recently by the British Parliament.

In addition, extensive testing is per- formed upon each newly installed scrub- ber system to ensure that they are able to meet the demands placed upon them by the varying operational conditions that they will be working in. As increasing numbers of scrubbers are being installed and the industry’s understanding of their ability to achieve compliance develops, confi dence in scrubbers continues to grow.

In the following a short view on the ferries main propulsion system, which will be retrofi tted with scrubbers: Color

Magic and Color Fantasy feature each four 8-cylinder diesel engine of type 46B (output 4 x 7.800 kW @ 500 rpm).

Both the ferries are of CCP propeller design. Each shaft features two engines which are mounted on both sides of one

Renk MAN gearbox. Each main engine will get one own scrubber. The diesel en- gines of the on-board gensets will stay as they are – without exhaust gas clean- ing system. They must therefore operate on gas oil, not only in ports where there is no shore-power supply available, but also during sea voyage. The Super Speed ferries feature the same propulsion sys- tem: each two twin-diesel engines from

Wärtsilä of the same type.

The Color Fantasy will be modifi ed in January 2015.

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