Borgøy: the World’s first LNG-Fueled Tug

Marine News
Friday, February 28, 2014

Late last year, an innovative project to design and build the world’s first LNG fuelled escort tugs became a reality when the Borgøy was handed over for sea trials by builder Sanmar in Tulza Bay near Istanbul.
For the Christening at the Sanmar Shipyard in Tuzla, representatives from the Turkish shipyard were joined by executives from Norwegian tug operator Buksér og Berging AS and from Rolls-Royce. Neil Gilliver, Rolls-Royce, President – Merchant, believes that delivery of the Borgøy and Bokn, each with 65-tonne bollard pull and a transit speed of 13.5 knots, will mark a step change in tug propulsion.
Gilliver added, “The completion of this vessel is highly significant for Rolls-Royce, Sanmar Shipyard and Buksér og Berging. We are extremely proud to have worked together on this successful project which heralds a new era for tug boat propulsion. Gas is gaining in popularity as a maritime fuel, and its environmental credentials, combined with lower costs are seeing many operators select it over traditional fuels, across a range of ship types.”
The project makes sense on many levels. Most of the world’s tug fleets operate close to shore, where emissions regulations are most stringent and as LNG becomes more widely available, it is expected that more major ports will also opt for the clean, lower cost and smoke-free fuel to power their tugs.
Following sea trials, the vessel sailed in mid-January for Kårstø Terminal in northern Norway where gas from some thirty offshore fields is landed and processed. There the ground-breaking craft will commence long-term charters with Norwegian state energy firm Statoil ASA and Gassco, the operator of the gas transportation network in early in 2014.
As Europe’s largest export facility of natural gas liquids and third largest in the world, the Kårstø Terminal will depend on these escort tugs, together with others, for the safe handling and manoeuvring of LNG tankers, LPG carriers and chemical tankers 24/7 and 365 days a year. The Borgøy and Bokn, each with fire-fighting and oil recovery capability as well as escort notation, are now the world’s most environmentally friendly tugs.

Propulsion
Both vessels are powered by a pair of Rolls-Royce Bergen C26:33L6PG lean-burn gas engines that have a combined output of 3,410 kW at 1,000 rpm and are directly coupled to Rolls-Royce US35 azimuth thrusters, each fitted with a 3m dia CP propeller in a nozzle. The propulsion package also includes a vertically-mounted gas tank to save space. The single cryogenic fuel tank has a capacity of 80m³, containing enough fuel to last up to five or six days and can be bunkered in around 45 mins. The rest of the fuel system is split and duplicated into two separate gas supply lines and power trains. Each is monitored by the sophisticated Rolls-Royce Acon safety, alarm and control system with gas detection in all areas. The two parallel propulsion trains provide full redundancy. Unlike conventional diesels which require fuel pumps, filters and injectors, gas is fed to the engines by pressure in the LNG storage tank. This will mean significantly less maintenance for the fuel supply system over time.

The Environment
The benefits of LNG as a marine fuel, particularly for inshore harbour craft which often operate in pre-defined areas where access to bunkering facilities does not present the same challenge as for deep-sea operators. And, a 25 percent and 80-90 per cent reduction in CO2 and NOx emissions respectively, and the virtual elimination of SOx emissions and particulates – means that Rolls-Royce gas fuelled Bergen engines meet IMO Tier II and Tier III regulations as well as US Environmental Protection Agency rules on NOx. The tugs are expected to have improved fuel consumption, lower maintenance costs, reduced lube oil consumption and a much-improved working environment for ships’ crews.



(As published in the February 2014 edition of Marine News - www.marinelink.com)

 

Maritime Reporter March 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Shipbuilding

Seaspan Acquires 7th SAVER Boxship

Seaspan Corporation announced today that it accepted delivery of a 10000 TEU containership, the MOL Beacon. The new containership, which was constructed at Jiangsu Yangzi Xinfu Shipbuilding Co.

OOCL Orders Six Ultra-Large Container Ships

Orient Overseas (International) Ltd. has placed a new order for six mega 20,000 teu container ships from South Korean shipbuilder Samsung Heavy Industries Co. for US$951.

Shipping Confidence Hits 2.5 Year Low

Overall confidence levels in the shipping industry fell to their lowest level for two-and-a-half years in February 2015, according to the latest Shipping Confidence

Marine Power

China's Artificial Islands in South China Sea Raises U.S. Concerns

China has been building artificial islands on reefs in the many disputed areas around the South China Sea. The unprecedented land reclamation currently being conducted

Going Nuclear in Indian Ocean

As India, Pakistan and perhaps China develop their naval nuclear forces, they will enter increasingly murky waters, says a report published in the National Interest.

US to Test 'Submarine' Drone That Can Launch from Ocean Floor

USA’s Defense Advanced Research Projects Agency (DARPA) is testing a drone that can hibernate on the ocean floor for years at a time before being launched to the

LNG

GasLog Acquires 2 BG Group's Carriers

GasLog Ltd. completed the acquisition of two LNG carriers from Methane Services Limited (“MSL”), a subsidiary of BG Group plc (“BG”), which was previously announced on December 22, 2014.

U.S. DoI Upholds 2008 Shell Arctic Lease

The U.S. Interior Department on Tuesday upheld a 2008 lease sale in the Chukchi Sea off Alaska, moving Royal Dutch Shell a step closer to returning to oil and gas

ABG Ties Up with GTT for LNG Technology

ABG Shipyard Ltd has tied up with Gaztransport and Technigaz (GTT) of France for the maritime transportation and storage of liquefied natural gas (LNG), reports Livemint.

News

Largest Vessel to Call ICTSI, Rijeka

Adriatic Gate Container Terminal (AGCT), International Container Terminal Services, Inc.’s (ICTSI) container handling facility in the Port of Rijeka, Croatia,

MOL President Reports Slack Performance

MOL President, President, Koichi Muto reported that the performance of the company was slack. Presenting his report he stated:  I am sad to report that our business performance fell short,

Holland America Line Wins Sparkie Award

At a March 5 reception at the Seattle Waterfront Marriott, Holland America Line was presented with a Sparkie Award by the United Way of King County, Washington.

Marine Equipment

Radio Holland bags Ahrenkiel Contract

Ahrenkiel Steamship GmbH & Co. KG and Radio Holland Germany GmbH, part of Imtech Marine, have agreed a long-term maintenance agreement for the entire Ahrenkiel Steamship fleet,

New England Boat Show on September 17th

Newport Exhibition Group announced today that its 45th Newport International Boat Show will take place September 17th on the Newport waterfront along America’s Cup Avenue in Newport, Rhode Island.

H2O’s Owens CrapZapper Offers More

H2O’s Owens CrapZapper marine sanitation device has dual certification to the latest IMO and USCG standards for operation anywhere in the world.   Features include low maintenance,

Vessels

Largest Vessel to Call ICTSI, Rijeka

Adriatic Gate Container Terminal (AGCT), International Container Terminal Services, Inc.’s (ICTSI) container handling facility in the Port of Rijeka, Croatia,

MOL President Reports Slack Performance

MOL President, President, Koichi Muto reported that the performance of the company was slack. Presenting his report he stated:  I am sad to report that our business performance fell short,

Knightsbridge Shipping, Golden Ocean Merger wrap up

Knightsbridge Shipping Limited has completed its previously announced merger with Golden Ocean Group Limited. In connection with the closing of the merger,

 
 
Maritime Careers / Shipboard Positions Maritime Standards Naval Architecture Navigation Pipelines Salvage Ship Electronics Ship Repair Shipbuilding / Vessel Construction Sonar
rss | archive | history | articles | privacy | terms and conditions | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.2054 sec (5 req/sec)