Rolls-Royce LNG Environship Delivered to Eidsvaag

MarineLink.com
Friday, May 31, 2013

LNG as marine fuel takes another step forward as Eidsvaag AS took delivery of the first vessel of the Rolls-Royce prize winning Environship range this week, featuring a combination of Rolls-Royce design and technologies which reduce CO2 emissions by up to 40 percent compared to similar diesel powered vessels.


Once in operation the vessel will operate a demanding schedule with a weekly round voyage along the Norwegian coast delivering feed pellets to fish farms regardless of weather conditions. On arrival at the storage location at a fish farm the ship will hold its position using its DP system and the pellets will be delivered by means of a crane operated transfer system over the bow. Up to 1,450 tons of feed can be carried in the 62 specially designed tanks on board which are connected to the unloading system, and the speed needed to meet the weekly schedule is 15 knots.


The ship is designed with focus on the actual sea conditions experienced in the area in which it will operate. Extensive model testing was carried out in the towing tank and the ocean basin at Marintek. Testing has confirmed that the hull is extremely efficient in both calm waters and heavy seas. A patented bow form reduces hull resistance in waves by up to 10 percent compared with an optimised conventional bow. This is confirmed by careful benchmarking comparisons in head seas in the towing tank.


On an overall length of 74.7 metres the NVC 401 LNG has a beam of 13.6 metres and a loaded draught of about 5 metres. The superstructure is located forward, with accommodation for eight people, and the machinery and LNG tank aft, the cargo tanks occupying the main part of the hull.


A Bergen C26:33L9PG gas engine, developing 2,430kW at 1,000rpm turns a CP propeller in a Promas solution integrating the propeller, a nozzle and the rudder in an efficient propulsion system.


The reduction gearbox handles power take-off and take-in for the 1,100kW shaft generator in a variable speed HSG (Hybrid Shaft Generator) configuration linked to the two 469kW auxiliary gensets. The HSG makes the vessel energy optimal in operation. This generator continues to supply electricity of correct voltage and frequency even at reduced revolutions of the engine and propeller. This means that the propulsion system can run on combinatory control, varying propeller rpm as well as pitch instead of the fixed revolutions required by other shaft generators. The propeller speed can therefore be that needed for best efficiency at the chosen ship speed. By this means the energy usually wasted by turning the propeller faster than is actually needed can be saved.


The high lift rudder is complemented by a 540kW tunnel bow thruster and a similar unit in the stern skeg.


The LNG system supplied by Rolls-Royce has a capacity of about 110 cubic meters which gives a range of around 1750 nautical miles. Developed in cooperation with Linde Cryo, the result is a system that controls the supply of gas to the engine optimally despite rapid changes in load. Furthermore Rolls-Royce has delivered the engine and thruster controls, an integrated automation system with gas control and monitoring, the DP1 system with joystick, and the electrical system.
All together the propulsion solution will reduce CO2  emissions by 22 percent, NOx emissons by 92 percent and SOx emissions by 99 percent, while emission of particulates are negligible.
Built at the Vard Aukra yard in Norway and owned by Eidsvaag AS, the NVC 401 LNG forage carrier will work for Skretting AS.


Several Environship vessels under construction
The Environship concept can be adapted for different ship types and a number of Environship vessels already in build will take to the seas during 2013. In the last quarter of the year the first of two cargo ships for the Norwegian Company Nor Lines will be delivered by the Tsuji Heavy Industries (Jiangsu) Co. Ltd yard in China. Passenger ship designs are also under development. Last year Rolls-Royce signed a teaming agreement with Italian company Lauro Shipping to design innovative new gas powered ferries based on the Environship concept.


Earlier this year, Rolls-Royce received the Green Ship Technology Award for its Environship concept, and in 2011 it received the Next Generation Ship Award at the Nor-Shipping exhibition. It is also nominated to this year’s “Ship of The Year” award at Nor-Shipping.

 

Maritime Today


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

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

People & Company News

China COSCO to be First through the Expanded Panama Canal

China COSCO Shipping has won the draw for its container vessel Andronikos to make the ceremonial first transit through the Expanded Panama Canal during the waterway’s inauguration on Sunday, June 26.

Sellick Equipment to Open New Facility

On April, 20, 2016, at the young age of 97 years, Walter Sellick along with sons Howard Sellick - President, David Sellick - Vice President and grandson Colin Sellick - Systems Manager,

Asia Tankers-VLCCs Rates Ease as Tanker Jams Fade

Port congestion eases at Basra and Chinese ports; tanker demand set to expand on lower oil prices. Freight rates for very large crude carriers (VLCCs), hurt by slower-than-usual release of cargo,

Technology

Voice-data Communications and HDTV in One System

PDQ’s OneSource System provides long range cell, wi-fi and high definition TV in one system for mobile users.   San Diego wireless company PDQ Connect has developed

Cavotec, ABB Partner on Shore-to-ship Power

Cavotec and ABB have signed a Memorandum of Understanding to jointly offer complete shore-to-ship power solutions globally. Such solutions allow vessels to plug

Ulstein Verft's First Wind Service Vessel Launched

Shipbuilder Ulstein Verft has launched its first vessel within the renewable energy segment, and also the first with the newly-developed X-STERN hull line design.

Marine Power

Mercury Marine Expands Manufacturing Capacity

Mercury Marine is adding a 53,000 square foot manufacturing capacity expansion to its global headquarters in Fond du Lac, Wisc. The expansion will consist of 45,

Pacific Nations Take a Stand on Shipping Emissions

On Earth Day, Pacific leaders queued among 175 countries to sign the Paris Agreement in New York. Earlier that day in London, the International Maritime Organization (IMO),

SCHOTTEL Debuts EcoPeller with High-torque Gears

Propulsion and steering systems manufacturer SCHOTTEL has unveiled its new EcoPeller (SRE), which it said offers improved efficiency and robustness. Playing a

LNG

Pressure Steady on LNG Shipping Rates -Drewry

LNG shipowners will have to wait until 2018 for earnings to improve, when the majority of new US plants are expected to come online, according to the latest edition

Samsung Heavy Loses $4.6-bln FLNG Order

South Korea’s shipbuilder Samsung Heavy Industries (SHI), the world’s third-largest shipbuilder,  has received a contract termination for three floating liquefied

AIDAprima Makes Maiden Call at Southampton

AIDA Cruises’ new flagship AIDAprima docked in Britain’s Southampton port for the first time on the morning of April 27, 2016, as part of a four-day short cruise.

News

Mercury Marine Expands Manufacturing Capacity

Mercury Marine is adding a 53,000 square foot manufacturing capacity expansion to its global headquarters in Fond du Lac, Wisc. The expansion will consist of 45,

Conquest Installs 850t Crane on Allseas Solitaire

Conquest Offshore was contracted by Allseas to remove a 300-ton crane and transport and install a 850-ton Huisman crane on board of one of the largest pipe-lay vessels in the world, Allseas Solitaire.

MARAD: $5 Mln Available for Marine Highway Projects

The Maritime Administration (MARAD) has announced the availability of $5 million in Federal funding to expand marine highway service by creating new or expanding

Vessels

Conquest Installs 850t Crane on Allseas Solitaire

Conquest Offshore was contracted by Allseas to remove a 300-ton crane and transport and install a 850-ton Huisman crane on board of one of the largest pipe-lay vessels in the world, Allseas Solitaire.

Canadian Navy Frigate Refit Program Completed

Seaspan joined Harjit S. Sajjan, Canada’s Minister of National Defense, at an official ceremony today to celebrate the completion of the Halifax-Class Modernization/Frigate

Fincantieri Delivers Carnival Vista

Carnival Vista, the new flagship of the fleet of Carnival Cruise Line, brand of the Carnival Group, was delivered today at Fincantieri’s shipyard in Monfalcone.

 
 
Maritime Contracts Maritime Standards Naval Architecture Offshore Oil Pipelines Salvage Ship Repair Ship Simulators Sonar Winch
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: 0.2352 sec (4 req/sec)