Page 70: of Maritime Reporter Magazine (October 2016)

LNG Powered Icebreaker Delivered

ON THE COVER

Polaris n September 28, 2016, “Icebreaker Polaris is extremely ver- breaker to run on dual fuel (diesel and ice strengthened ABB Azipod units, two

Arctech Helsinki Shipyard satile vessel what concerns her techni- LNG), a set up designed to fuel con- at the stern (6,500 kw each) and one at delivered the most powerful cal properties. She can operate in all ice sumption and costs as well as emissions, the bow (6,000 Kw), which combine for

Onewcomer in the Finnish Ice- conditions in the Baltic Sea and use in making it IMO Tier III and Baltic Sea 19 mw, making Polaris Finland’s most breaker ? eet, icebreaker Polaris, to the all circumstances either gas or diesel oil Sulphur Emission Control Area (SECA) powerful icebreaker to date.

Finnish Transport Agency, which then as fuel. We are proud we had this oppor- compliant.

handed the vessel over to Arctia Ice- tunity to build the vessel that will serve The Polaris’ diesel-electric power

Main Particulars breaking Oy. The prototype vessel built the Finnish winter navigation in coming plant includes two nine-cylinder Wärt-

Length: ....................................................110 m at Helsinki Shipyard is designed to serve decades,” said Esko Mustamäki, Manag- silä 9L34DF (rated 4,500 kW each) and

Breadth: .................................................24.4 m

Draft, design: ...............................................8 m for at least 50 years in icebreaking, oil ing Director, Arctech Helsinki Shipyard. two 12-cylinder Wärtsilä 12V34DF (rat-

Speed: .................................................17 knots recovery and sea rescue operations. The Polaris is based upon the Aker ARC ed 6,000 k W each) four-stroke medium

Gross Tonnage: .........................................9300 last time a Finnish icebreaker of a simi- 130 concept, with an overall length of speed dual fuel genets, as well as an ad-

Deadweight: ............................................3000 t lar size range was deliverd was more 110m, beam of 24m and an 8m draft, ditional eight-cylinder Wärtsilä 8L20DF

Crew: ....................................................16 (+8)

Classi? cation: .............................Lloyd’s Register than 20 years ago, in 1994. enabling the vessel to operate in all ma- auxiliary engine (rated 1,168 kW). All

Ice class: ....................................................PC4

Polaris sports a host of innovative de- jor Finnish shipping lanes. The techno- told the combined power output is more

Diesel-electric propulsion sign features, from vessel’s hull form logically complex vessel is out? tted with than 22 MW.

Main engines Wärtsilä 2x 6000 kW, 2x 4500 kW, 1x and propulsion unit arrangement, as well more than 180 km of electric cabling, a The vessel’s two vertical LNG tanks ..............................................1280 kW, Dual fuel

Azimuth prop. units ............................ABB Azipod as the fact that vessel is designed to be brush collector oil recovery system, a combine for a total volume of 800 cu. ................2x 6500 kW (stern), 1 x 6000 kW (bow) ‘dual fuel,’ able to use either lique? ed satellite imaging system for ice naviga- m., enabling 10 days autonomy in typi-

LNG tanks: .......................................2 x 400 m3 natural gas or low sulphur diesel oil as tion, an emergency towing winch and a cal winter conditions. Another 20 days

Oil recovery capacity: ...........................1400 m3 fuel. helideck. autonomy is added via a combined 2,500

Towing winch: 3 ................................00 m, 110 t

Bollard pull: ...............................................214 t

Polaris complies with the international Arguably, Polaris’ most noteworthy cu. m. capacity for fuel oil.

Icebreaking capability ...................3.5 kn / 1.8 m

IThe icebreaking capacity of Polaris is asset is its powerplant and propulsion Polaris also features a unique propul-

Customer: ....................Finnish Transport Agency 1.8m at speed of 3.5 knots. units; the ship is the world’s ? rst ice- sion system: three electrically driven (Images: Arctech Helsinki Shipyard) 70 Maritime Reporter & Engineering News • OCTOBER 2016

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