Rolls-Royce Delivering First Gas Power System for Tugs

press release
Thursday, January 12, 2012

Rolls-Royce, the global power systems company, has signed a contract to deliver highly efficient engines and propulsion systems for the world’s first Liquid Natural Gas (LNG) powered tugs.

 
The two vessels have been ordered by Norwegian company Buksér og Berging AS and will enter service in late 2013 for Statoil, the international energy company, and Gassco, the operator of the gas transportation network off the Norwegian coast. Robert Løseth, Rolls-Royce, Senior VP - Merchant, Propulsion Systems and Engines said: “This is a breakthrough for our Bergen gas engines and cutting edge propulsion technology. The choice our customer has made highlights the industry leading engine performance, fuel consumption and low methane emissions that Rolls-Royce can offer, which is now being applied to tugs. ” 
 

In addition to two gas engines and a single LNG tank, Rolls-Royce will deliver a mechanical direct driven azimuth propulsion system for each tug that will provide the quickest response time for manoeuvring; which is critically important for tug operators. The combined power and propulsion system will also enable the lowest possible fuel consumption in all operating modes. Rolls-Royce will also provide automation and control systems for the two escort vessels.
 

Commercial Director at Buksér og Berging AS, Vetle Sverdrup said: “We wanted to base the design of the new tugs on the spark ignition lean burn engine concept, and the ability to accommodate direct drive in addition to a low emission profile. The propulsion system on high performance escort tugs needs to accommodate rapid load pick up over the entire load range. Due to the above we chose to work closely with Rolls-Royce on this project.” The scope of supply for Rolls-Royce in this contract is:


•       2x US35 Aquamaster
•       2x Bergen C6 Ing engines, mechanical drive
•       RR Acon control and monitoring for gas system
•       1x AGA Cryo LNG tank with LNG system based on two coldboxes

The LNG system is designed by AGA Cryo and integrated with the Rolls-Royce propulsion system. This single tank LNG system has got full gas redundancy approved by NMD (Norwegian Maritime Directorate) i.e. no diesel back up is required. The operational benefits of a gas fuelled propulsion system are a cleaner engine room, less waste oil and no “switch over” problems. The new gas engines are also service friendly and needs less maintenance. The gas engines can operate on low load with out any restriction and have a very quick and step less ramp up time from 0 to 100% load.


The fuel system is designed for weekly bunkering intervals and the bunkering time is estimated to be 45 minutes. Bunkering will be carried out by the ships crew. Nox emissions are lower at low engines loads, which are the reverse trend of most diesel engines, making it the optimal solution for tugs which are spending most of the time at lower engine loads. Environmental benefits with S.I. gas engines:
 

•       92% reduced NOx emission
•       17% reduced GHG emission
•       98-100% reduced SOx emission
•       98% reduced particulates
•       No oil spill during bunkering
•       No oil spill in ship engine room bilges
•       No sludge from purifiers
•       No FO waste-/leak oil
•       No FO oil spill, reduced Fire Risk
•       Long-term compliance with local port regulations and potential benefits from taxation/green port dues
•       Compliant with Tier III regulations

The vessels are designed by Buksér og Berging AS together with Marin Design AS in Kolvareid, Norway. The project was developed in close contact with Rolls-Royce giving Rolls-Royce a unique opportunity to understand and adhere to operational requirements. The vessels have the following specifications:
 

Loa:    35.00m
Lpp:    30,54m
Bm:     15.40m
Draft:   7.50m
 

Accommodation for 7 persons
 

Maritime Reporter July 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

People & Company News

EMGS Reports 2Q and 1H 2014 Results

Electromagnetic Geoservices ASA's (EMGS) reported revenues of USD 42.5 million in the second quarter 2014, down from USD 61.3 million in the first quarter this year and from USD 44.

Danos Fabrication Facility Creates 150 Jobs

Danos, a family owned oil and gas service company, announced plans to expand its fabrication capabilities, by opening a 120,000 square-foot fabrication facility in Amelia, La.

US’ Largest Floating Drydock Heads to Portland

The country’s largest floating drydock, the Vigorous, is headed for Portland this weekend. The drydock, a piece of equipment used to lift vessels as large as cruise ships out of the water,

Ship Repair & Conversion

US’ Largest Floating Drydock Heads to Portland

The country’s largest floating drydock, the Vigorous, is headed for Portland this weekend. The drydock, a piece of equipment used to lift vessels as large as cruise ships out of the water,

Country’s Largest Floating Drydock Coming to Portland

The country’s largest floating drydock, the Vigorous, is headed for Portland this weekend. The drydock, a piece of equipment used to lift vessels as large as cruise ships out of the water,

MN 100: Conrad Shipyard

1501 Front Street Morgan City, LA 70380 Telephone: 985 384 3060 E-Mail: rasampey@conradindustries.com Website: www.conradindustries.com CEO/President: Johnny Conrad Number of Employees: 1,

Workboats

Krill Supplies VFMMS to Island Tug and Barge

Krill Systems Inc., a producer of Vessel Fuel Measurement and Monitoring Systems (VFMMS), announced delivery, installation and successful sea trials of three more systems to Island Tug and Barge Ltd.

MN 100: Conrad Shipyard

1501 Front Street Morgan City, LA 70380 Telephone: 985 384 3060 E-Mail: rasampey@conradindustries.com Website: www.conradindustries.com CEO/President: Johnny Conrad Number of Employees: 1,

Signet Tows Aircraft Carrier on Final Voyage

The final voyage of aircraft carrier USS Saratoga begins today. From the Eastern Hemisphere to the Western Hemisphere, the USS Saratoga has made her mark around the globe,

Environmental

Atlantic Slows Warming, Temperature Rises Seen Resuming from 2030

The Atlantic Ocean has masked global warming this century by soaking up vast amounts of heat from the atmosphere in a shift likely to reverse from around 2030 and spur fast temperature rises,

Maritime Reporter @ 75: The Daily Cartoon

Maritime Reporter & Engineering News was founded by John J. O'Malley (1905-1980) in 1939, and today ranks as the world's largest audited trade publication in the world serving the maritime industry,

Revision Proposed for Fishing Vessel Cargo Regs

The U.S. Coast Guard (USCG) proposed revisions to its regulations for commercial fishing vessels carrying flammable or combustible liquid cargos in bulk. The

Marine Power

USS Independence Successfully Completes Special Trials

USS Independence (LCS 2) successfully completed Special Trials (ST), a series of at-sea tests on Aug. 2, following the ship's participation in the multinational

Krill Supplies VFMMS to Island Tug and Barge

Krill Systems Inc., a producer of Vessel Fuel Measurement and Monitoring Systems (VFMMS), announced delivery, installation and successful sea trials of three more systems to Island Tug and Barge Ltd.

Eaton to Exhibit at SMM

Power management company Eaton will demonstrate its expanded ability to deliver electrical, explosion-proof and hydraulic equipment for the marine and offshore

LNG

Banking on US Shale Gas Boom, Asia Petrochemical Firms Switch to LPG

Asia petrochemicals firms are building tanks and retooling plants to store and process liquefied petroleum gas imported from the United States, counting on a flood

Mozambique: $30b Invested for 2018 LNG Export

More than $30 billion will be invested initially in Mozambique's natural gas sector to build capacity to produce 20 million tonnes per year of liquefied natural gas (LNG),

LNG America Selects Topside Designer for LNG Bunker Barge

LNG America has selected Taylor-Wharton to commence the front-end engineering and design work for the cryogenic topside of the company’s 3,000 cubic meter Gemini

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Security Naval Architecture Offshore Oil Pipelines Pod Propulsion Port Authority Sonar Winch
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: 0.2719 sec (4 req/sec)