by Doug Woodyard Integrated scrubbers to de-SOx Great Lakes series
Complete propulsion systems from Wärtsilä for six (option two) Great Lakes bulk carriers will include integrated fresh water scrubbers to clean the exhaust gases of the main and auxiliary engines and the oil-fired boiler. The SOx scrubbers will be the first integrated installations of their type supplied by Wärtsilä, promising space and weight savings. The Equinox-class ships ordered by Canada’s Algoma Central Corp will be built by the Nantong Mingde Heavy Industrial yard in China for deployment on North America’s Great Lakes and St. Lawrence Seaway. The first delivery is scheduled during the first-half of 2013. “These are truly important vessels as they will set new standards for environmentally sustainable shipping on the Great Lakes and for cargo ships in general,” says Juhani Hupli, vice president, ship power technology, Wärtsilä Ship Power.
“The scrubbers will allow the customer
A global vessel information and c ontrol business organisation formed by ABB will develop automation solutions specifically for marine applications, exploiting the group’s proven land- based process automation technologies.
to operate the vessels using less costly high sulphur fuel, yet still achieve the 0.1 per cent sulphur emissions standard set by IMO for North American emission control areas. The Wärtsilä integrated scrubber solution removes more than 97 per cent of sulphur oxide emissions.” Wärtsilä’s scrubber concept uses fresh water in a closed-loop system in which sulphur oxides in the exhaust gases are neutralised with caustic soda. A small amount of scrubbing water is extracted to remove contaminants in a treatment unit, thereby fulfilling the quality and monitoring requirements stipulated by the IMO. In zero-discharge mode, the clean effluents
are led to a holding tank for periodical discharge; contaminants are always disposed of at reception facilities in port. A major advantage of fresh water scrubbers cited by Wärtsilä is the possibility to operate in zero-discharge mode, which means that no water is spilled into the lake waters. In addition, in these specific installations
ABB sharpens focus on automation solutions
An expanded portfolio embraces a wide range of marine advisory and fleet management reporting solutions, integrated automation, vessel management and control systems as well as instrumentation and sensors. The systems
Rolls-Royce systems serve first LNG-fuelled tugs
are intended to optimise ship operation and performance, and improve energy efficiency, equipment reliability and availability, and operational safety.
Engines and propulsion systems will be supplied by Rolls-Royce for what are claimed to be the world’s first LNG-fuelled tugs. Two vessels ordered by Bukser og Berging of Norway are due to enter service in late 2013 with Statoil and Gassco, which operates the gas transportation network along the Norwegian coast.
Rolls-Royce will supply shipsets
www.mpropulsion.com
based on two Bergen medium speed gas engines and azimuthing propulsion systems, marking the first installations of its new US35 thruster. A reduction in fuel consumption of up to 30 per cent compared with similar conventionally- propelled vessels is anticipated. LNG tank systems and automation and control systems will also be supplied by the group.
Demand for upgraded vessel information and control systems has increased, ABB reports, as ship operators seek to meet environmental regulations while lowering onboard energy use and fuel consumption. The group aims to further develop solutions for improving operational efficiency, energy efficiency, asset availability and overall safety applied successfully in shoreside process applications to benefit the marine and offshore industries. “We will expand our offering to include marine automation and advisory systems based on our solid industry experience and cutting-edge technology,” says Veli-Matti Reinikkala, head of ABB’s process automation division. “This strategic move is part of our 2015 growth strategy.” ABB claims an installed base of over 3,000 automation and control systems in marine operations worldwide, with personnel based in 22 group marine service centres providing maintenance and other support. Last year it sold 350 automation, vessel management and control systems of various types for drill ships, jack-up rigs, offshore support vessels and passenger tonnage.
ABB will supply an energy management system to Viking Line’s Baltic ropax ferry newbuilding at the STX yard in Finland, due for delivery in 2013 for service between the Finnish port of Turku, and Stockholm. The 2,800-passenger vessel will be powered by LNG- fuelled Wärtsilä 50DF medium speed engines ›››
Marine Propulsion I February/March 2012 I 11
water from the Great Lakes will be tapped for the systems, with less or no need for producing fresh water on board.
Wärtsilä claims to be the first manufacturer
to be awarded a marine scrubber certificate by DNV, Germanischer Lloyd and Bureau Veritas. The machinery and equipment shipsets from Wärtsilä for the Great Lakers will also include the five-cylinder RT-flex50D low speed main engine, three six-cylinder Auxpac 20 diesel gensets, CP propellers and shaftlines and CT200 tunnel thrusters. Another element of the package, Wärtsilä’s OWS 500 oily water separator, is reportedly the first bilge water separator unit approved without a filter. Maintenance costs were a factor influencing
Algoma’s decision to specify Wärtsilä’s integrated equipment package and associated global service support in renewing its fleet of older vessels, reports Al Vanagas, senior technical vice president, Algoma Central Corp.
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