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 Today


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

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

People & Company News

First Women's Expedition to the Arctic

Company "MyArctic-expeditions" organize the first women's expedition to the Arctic Ocean. The expedition will start on March 5 in the capital of the Nenets Autonomous

Topaz Responder Saves Refugee Migrants

Topaz Energy and Marine has emerged as an unlikely player in the effort to save refugee migrants risking their lives on the sea crossing from Turkey to Greece’s islands in order to reach Europe.

MHI's Entity to Oversee Material Handling Equipment, Engine and Turbocharger Businesses

Today Mitsubishi Heavy Industries, Ltd. (MHI) decided in principle to launch a new wholly owned entity to integrally oversee its current businesses in material

Technology

Norbulk Selects Parker Kittiwake’s Cat Fines Test Kit

Parker Kittiwake, a leading global supplier of asset control and protection technology, has today announced a significant order of its recently launched Cat Fines

European Consortium Launches Blue Nodules Project

On 1 February a European consortium launched a new Horizon 2020 project: Blue Nodules. This project addresses the challenge of creating a viable and sustainable

Seafarers help Sought to Improve Onboard Design

The Nautical Institute and CIRM (the principal international association for marine electronics companies) today launched a joint initiative to improve the usability

Shipbuilding

Crowley Christens 2nd LNG-ready Product Tanker

Crowley christens second of four newly built, LNG-ready product tankers for use in U.S. coastwise trade   Crowley Maritime Corp. has christened the second of

VT Halter Delivers ATB Tug to Bouchard

VT Halter Marine, Inc. announced the delivery of the M/V Morton S. Bouchard Jr., the first of the two 6,000 horsepower Twin Screw Articulated Tug Barge (ATB) tugs to Bouchard Transportation Co.

Damen Builds Cable Installer For Maersk Supply Service

New Damen-built vessel for Maersk Supply Service to undertake long-term charter with DeepOcean   A newbuild DP2 cable installation vessel, Maersk Connector, was

Navy

Antietam, McCampbell Build Relationships at IFR 2016

Ticonderoga-class guided-missile cruiser USS Antietam (CG 54) and Arleigh Burke-class guided-missile destroyer USS McCampbell (DDG 85) arrived Feb. 4 in India

Indian Navy Shows Off Strength

India’s naval might was on full display off the coast of Visakhapatnam today (Saturday) as President Pranab Mukherjee reviewed the naval fleet.   Mukherjee,

Russia Confirms Tanker Seized by Niger Delta Militants

Russia’s embassy in Nigeria confirmed on Thursday that the Greek-owned oil tanker Leon Dias has been hijacked in the Gulf of Guinea, reports TASS.   There are

Marine Power

Indian Navy Shows Off Strength

India’s naval might was on full display off the coast of Visakhapatnam today (Saturday) as President Pranab Mukherjee reviewed the naval fleet.   Mukherjee,

VPS Raises Concerns Over Revised Rules for Fuels

Veritas Petroleum Services (VPS) expressed reservations about some of the proposed revisions to the international ISO 8217 specifications of marine fuels. Areas

China to Enforce Low Sulphur ECA in Yangtze River Delta

Vessels calling ports in China’s Yangtze River Delta, including Shanghai, will be required to burn low sulphur fuel while at berth from April 1 this year.   China’s

Marine Equipment

Topaz Responder Saves Refugee Migrants

Topaz Energy and Marine has emerged as an unlikely player in the effort to save refugee migrants risking their lives on the sea crossing from Turkey to Greece’s islands in order to reach Europe.

MHI's Entity to Oversee Material Handling Equipment, Engine and Turbocharger Businesses

Today Mitsubishi Heavy Industries, Ltd. (MHI) decided in principle to launch a new wholly owned entity to integrally oversee its current businesses in material

VT Halter Delivers ATB Tug to Bouchard

VT Halter Marine, Inc. announced the delivery of the M/V Morton S. Bouchard Jr., the first of the two 6,000 horsepower Twin Screw Articulated Tug Barge (ATB) tugs to Bouchard Transportation Co.

Vessels

Topaz Responder Saves Refugee Migrants

Topaz Energy and Marine has emerged as an unlikely player in the effort to save refugee migrants risking their lives on the sea crossing from Turkey to Greece’s islands in order to reach Europe.

Globus Maritime Reclassifies Board Member

Globus Maritime Limited, a dry bulk shipping company, announced today that when Georgios Karageorgiou, a Class I director of Globus Maritime Limited  resigned on December 28,

Antietam, McCampbell Build Relationships at IFR 2016

Ticonderoga-class guided-missile cruiser USS Antietam (CG 54) and Arleigh Burke-class guided-missile destroyer USS McCampbell (DDG 85) arrived Feb. 4 in India

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Naval Architecture Pod Propulsion Port Authority Salvage Ship Electronics Ship Repair Ship Simulators Shipbuilding / Vessel Construction
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: 0.1231 sec (8 req/sec)