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 Today


The Maritime Industry's original and most viewed E-News Service

Maritime Reporter June 2016 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

People & Company News

UASC Shareholding States Vote to Back Hapag-Lloyd Merger

United Arab Shipping Company (UASC) said its six shareholding states backed a merger deal with German container shipping line Hapag-Lloyd AG at a meeting on Wednesday.

List: Top Five UK Ship Owners

Following last week's landmark referendum results, VesselsValue has compiled a list of the top five U.K.-based shipowners and their total fleet value in USD billions.

FMC's Doyle Addresses VGM Rules

U.S. Federal Maritime Commission (FMC) Commissioner William P. Doyle issued a statement on the upcoming implementation of the SOLAS Convention’s verified gross mass (VGM) requirements:   On Friday,

Ship Repair & Conversion

Sea Installer Receives Crane Upgrade

A2SEA-owned jack-up leaves Damen Shiprepair Amsterdam able to handle bigger offshore wind installation projects   Damen Shiprepair Amsterdam (DSAm) has concluded

SPS Used for Pipe-Layer Upgrade

The 127,500dwt Solitaire has completed some of the most challenging projects in which heavy pipe has been laid in very deep waters.   Originally built in Japan as a mini-Capesize bulk carrier,

Wärtsilä, Zamakona Yards Join forces in Canary Island

Wärtsilä is enhancing its service offering by participating in a new maintenance hub in the Canary Islands. The facility, operated by one of Spain's biggest shipbuilding and ship repair groups,

Workboats

AWO Authorizes ClassNK to Perform RCP Audits

The American Waterways Operators (AWO) and ClassNK have signed an agreement under which ClassNK will be authorized to conduct audits of AWO's Responsible Carrier Program,

Young Brothers Orders Four New Tugs from Conrad

Young Brothers, Limited, Hawai‘i’s largest inter-island cargo service provider, and Conrad Shipyard, signed a contract to build four new tugs, a nearly $80 million

Meercat Workboats Scores a Hat-trick

The U.K.’s Meercat Workboats says it scored a hat-trick; the Hampshire-based boat builder announced it is moving premises, that Seawork was a huge success and that

Environmental

Port Everglades, EPA to Study Air Emissions

Port Everglades has signed a partnership agreement with the U.S. Environmental Protection Agency (EPA) to study air emissions.   The EPA's Office of Transportation

Lloyd's Register Extends Drilling Rig Integrity Support

Exploration begins by BHP Billiton using the Deepwater Invictus rig and supported by Lloyd’s Register’s rig integrity team. Lloyd’s Register (LR) announced it

Groningen Seaports First in Line for Damen InvaSave

The first production version of Damen’s InvaSave ballast water treatment system – intended for use at Groningen Seaports – will be on display at the upcoming ‘DelfSail’

Marine Power

Hybrid RoPax Ferry Delivered to Royal TESO

Hybrid RoPax ferry Texelstroom has been delivered to Koninklijke N.V. Texels Eigen Stoomboot Onderneming (Royal TESO).   This latest generation symmetrical ferry is powered by efficient,

Northern Lights Opens Branch Office in Louisiana

Marine power generation and climate control products manufacturer Northern Lights has opened its fifth branch office, in Kenner, La, to enhance service to Gulf

First MAN D2676 Workboat Engine Ready for Launch

Last December, MAN Engines introduced its latest generation in-line six-cylinder engines for workboats. Now the first MAN D2676 LE443 engine off the production

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Standards Pipelines Pod Propulsion Port Authority Ship Electronics Ship Repair Ship Simulators Sonar
rss | archive | history | articles | privacy | 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: 0.2606 sec (4 req/sec)