Norwegian Navy Embraces Electrification

By Michelle Howard
Tuesday, May 20, 2014

GE’s Power Conversion business (NYSE: GE) has announced that it is working with Daewoo Shipbuilding and Marine Engineering Co., Ltd. (DSME) in South Korea to provide an electrical power and propulsion system for a Norwegian Defence Logistics Organization (NDLO) logistics and support vessel (LSV). GE’s equipment will be installed as a key part of the ship’s hybrid propulsion system, improving fuel efficiency and operating flexibility.


In October 2012, GE’s Power Conversion business announced a similar project for the U.K. Royal Fleet Auxiliary’s new fleet of four military afloat reach and sustainability (MARS) tankers. These will be the U.K.’s next-generation class of large, fast-fleet tankers that will deliver fuel, fresh water and supplies to Royal Navy ships including the Queen Elizabeth Class aircraft carriers.


Once completed, the NDLO’s newest LSV, built by DSME, will measure 180 meters in length by 26 meters in beam and have a loaded displacement of more than 26,000 tons. The new vessel is planned to enter service in October 2016.


“The future to keeping navies at sea for longer, further from home ports and with increased resilience is by making them as operationally efficient as possible. A key reason we chose GE’s Power Conversion business for our latest logistics and support vessel is because their technologies makes this possible. Coupled with the vast experience GE holds in this domain globally and most recently on the MARS tankers, we feel they are the strongest partner in helping us make sure the latest LSVs are of the highest performance standards,” said Commander Senior Grade (Cdr SG) Christian Irgens of NDLO.


Hybrid propulsion systems—like the one being used for this project—combine both electrical and mechanical equipment to turn the ship’s propellers throughout the speed operating range. The Norwegian LSV will have two independent propeller shafts each driven via a gearbox by either a large propulsion diesel or a relatively small electric motor. When the ship is operating at moderate or low speeds, the propeller shafts are turned using GE’s electric motors with speed control for each motor being provided by the use of a low-voltage variable speed drive. The electrical power for the motors is supplied from the generators used to supply the remainder of the ship’s services. This reduces the number of generators in operation and often allows those that are in use to be run at a more efficient operating point.


When the ship is required to operate at higher speeds, the main propulsion diesel engines are started and the propellers are now turned, via the gearboxes, by these engines. The propulsion motors now can be operated in the opposite sense as generators, using a small amount of energy from the propulsion engines to supply electricity to the ship’s services. This in turn allows the ship service generators to be shut down once again reducing overall operating hours of the ship’s diesels and saving maintenance cost.


This hybrid configuration is a versatile propulsion solution and is particularly suited to the fluctuating operational scenarios encountered by naval warships and auxiliaries. Using electric propulsion motors powered by the ship’s generating sets to turn the propeller saves fuel, reduces emissions and reduces maintenance costs of the main engines, which can be shut down. The generating sets are running to meet other electrical needs of the ship anyway, so the overall number of hours run by the various diesel engines onboard is reduced.


Not only is GE providing the propulsion motor and variable speed drive equipment to DSME, but it also will supply switchboards, alternators, cargo pump drives and the bow thruster motor and drive. GE Power Conversion system engineers have been working very closely with the DSME shipyard, the NDLO and other equipment suppliers to ensure that the electrical power system is fully integrated and will deliver the efficiency and reliability expected.


“Our electrical drive train technology provides the NDLO with a highly efficient, flexible and integrated power and propulsion system for its critical military operations,” said Mark Dannatt, naval business director for GE’s Power Conversion business. “This project is another example of a growing trend among the world’s navies to use GE’s electric propulsion technology and a good example of how our system design can be tailored to meet the exacting requirements of the owner.”


 


 

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

People & Company News

Cove Point LNG Export Facility Gets US FERC Approval

U.S. federal regulators on Monday approved construction of Dominion Resources Inc's liquefied natural gas export project in Cove Point, Maryland. Cove Point is the fourth U.

Aker Evaluating Future of US Shipyard, ASC

Norway's Aker ASA may decide to merge or otherwise restructure two listed units that have seen strong benefits from the U.S. shale oil energy boom, Aker's Converto

MAN Propulsion Packages for New Icelandic Trawlers

MAN Diesel and Turbo inform that Icelandic owners, HB Grandi, Vinnslustodin hf. and Hradfrystihusid Gunnvör, have ordered newbuildings based on two different ship

Technology

EDGE Facility to Develop, Deliver Security Capabilities

Center in Nova Scotia will focus on rapidly delivering new technologies and capabilities to the Royal Canadian Navy as they transition to future fleet.    General

Fire at Milazzo Refinery Impacts Docks

Inchcape Shipping Services  is advising of extensive disruption after a fire broke out Friday afternoon (27 September) at Italy’s energy giant Eni and Kuwait Petroleum’s

IMO Takes Step Towards Electronic Certificates

In the future, the IMO member States should accept the use of electronic certificates. This is the request of the Facilitation Committee (FAL) and, hence, the road is paved for less paperwork,

Marine Propulsion

MAN Propulsion Packages for New Icelandic Trawlers

MAN Diesel and Turbo inform that Icelandic owners, HB Grandi, Vinnslustodin hf. and Hradfrystihusid Gunnvör, have ordered newbuildings based on two different ship

World's Largest Fast Crew Boat Powered by HamiltonJets

The world’s largest Fast Crew Boat has recently been launched by Incat Tasmania’s shipyard on the 15th of September 2014.   This DP2 class 70m Fast Crew Boat

Mercury Marine produces 75,000th Verado L6 Outboard

Milestone comes less than 10 years after launch of platform.   Mercury Marine, the world leader in commercial and recreational marine propulsion and technology,

Shipbuilding

Aker Evaluating Future of US Shipyard, ASC

Norway's Aker ASA may decide to merge or otherwise restructure two listed units that have seen strong benefits from the U.S. shale oil energy boom, Aker's Converto

MAN Propulsion Packages for New Icelandic Trawlers

MAN Diesel and Turbo inform that Icelandic owners, HB Grandi, Vinnslustodin hf. and Hradfrystihusid Gunnvör, have ordered newbuildings based on two different ship

Crowley Receives Heavy-Lift Deck Barge in Singapore

Crowley Maritime Corporation’s solutions group announced today that it has received the first two of potentially four, new heavy-lift, ballastable deck barges (HDBs)

Navy

EDGE Facility to Develop, Deliver Security Capabilities

Center in Nova Scotia will focus on rapidly delivering new technologies and capabilities to the Royal Canadian Navy as they transition to future fleet.    General

Northrop Grumman Advances Unmanned Maritime Capabilities

Innovative unmanned systems program moves forward to Phase II.   Northrop Grumman Corporation (NYSE: NOC) is developing new, advanced unmanned systems to support

VADM Hilarides Commander, Naval Sea Systems Command

Vice Adm. William Hilarides, the commander of the Naval Sea Systems Command (NAVSEA), recently spoke to a small group of reporters about his vision for NAVSEA and

Marine Power

MAN Propulsion Packages for New Icelandic Trawlers

MAN Diesel and Turbo inform that Icelandic owners, HB Grandi, Vinnslustodin hf. and Hradfrystihusid Gunnvör, have ordered newbuildings based on two different ship

World's Largest Fast Crew Boat Powered by HamiltonJets

The world’s largest Fast Crew Boat has recently been launched by Incat Tasmania’s shipyard on the 15th of September 2014.   This DP2 class 70m Fast Crew Boat

Mercury Marine produces 75,000th Verado L6 Outboard

Milestone comes less than 10 years after launch of platform.   Mercury Marine, the world leader in commercial and recreational marine propulsion and technology,

Marine Equipment

Almarin Buoys for GNL del Plata in Uruguay

Almarin has supplied fourteen buoys to OAS constructor for the maritime beaconing of the works of GNL del Plata project in Uruguay. Almarin Spanish AtoN supplier

Mercury Marine produces 75,000th Verado L6 Outboard

Milestone comes less than 10 years after launch of platform.   Mercury Marine, the world leader in commercial and recreational marine propulsion and technology,

OC Selects Siemens Blue Drive PLUSC Propulsion Solution

Siemens Blue Drive PLUSC Low Voltage Propulsion Solution providing reliability, Safety, increased fuel efficiency, reduced greenhouse gas emissions (Methane, NOX

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Security Maritime Standards Offshore Oil Pod Propulsion Port Authority Salvage 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: 0.2333 sec (4 req/sec)