GE Offers Gas Turbine Hybrid Electric Drives

press release
Monday, May 07, 2012

Ideal for Noise Reduction, Redundancy, Improved Fuel Economy.

 

GE Marine offers hybrid electric systems for military and commercial marine customers based on its LM aeroderivative gas turbines, motors and drives, to help reduce noise and improve fuel economy. By teaming with a variety of industry players, GE can provide customers unmatched gas turbine hybrid electric and all electric propulsion systems integration experience.

 

Hybrid electric arrangements cross-connect the ship service power system with the propulsion system by placing an electric motor and its associated motor drive in the drive train. At lower speeds, the propulsion system, such as engines are turned off and the electric motors provide cruising power. 

 

“Many ship owners and builders are currently evaluating hybrid electric propulsion designs for existing or new build ships. Thanks to many years in this industry forming key partnerships, GE can now offer more comprehensive hybrid electric propulsion solutions for military and commercial customers,” said Brien Bolsinger, general manager, GE Marine, Evendale, Ohio.

 

In fact, GE has provided components on seven gas turbine hybrid or electric powered ship classes in service or under construction, including the unique propulsion system on the United States Navy’s LHD 8 USS Makin Island. GE offers a family of LM2500 gas turbines from 22 to 32 megawatts for twin or single gas turbine hybrid plants.  In addition to the LHD 8-class ships, GE LM2500s are used on a variety of hybrid propulsion plants, including the German Navy’s F124 and F125 frigates, and the Italian and French FREMM frigates.

 

Hybrid System Benefits

 

Hybrid electric propulsion provides navies with the following benefits versus traditional propulsion systems:

 

• Improved fuel economy
• Fewer installed prime movers for reduced propulsion costs
• Reduced diesel maintenance costs
• Flexible, integrated power and propulsion systems to direct power as needed
• Improved combat capability

 

Hybrid Electric Propulsion

 

“In fact, in ships similar to the U.S. Navy’s DDG 51 class, hybrid electric propulsion can improve fuel economy because the hybrid propulsion motor load during low speed operation can be consolidated with the ship service load.  This allows the ship service generator set to run at more efficient operating conditions and the larger propulsion gas turbines to be shut down. Thus, fuel burn can be reduced by more than 8% depending on the ship’s operating profile,” Bolsinger added.

In new designs – particularly frigates from 3,000 to 7,000 tonnes – a hybrid electric arrangement improves efficiency. The traditional COmbined Diesel Or Gas turbine (CODOG) or COmbined Diesel And Gas turbine (CODAG) frigates have two gas turbines and two diesels for propulsion and typically four diesels for ship service power (see Figure 1). With GE’s hybrid electric arrangement, the two propulsion diesels can be eliminated and replaced by electric motors. This arrangement can reduce ship construction, propulsion equipment, and maintenance costs while helping reduce noise and improve combat capabilities.

Dual Gas Turbine Hybrid Arrangement

 

GE’s LM2500 gas turbines, for instance, can be applied in a dual gas turbine hybrid arrangement versus a single gas turbine configuration to provide the lowest technical, cost, schedule and operational risk. If incorporated into an existing LM2500 CODOG ship design, GE believes a dual gas turbine configuration requires the fewest ship modifications such as changes to bulkheads, uptakes, stability, the second platform level, and the deckhouse.


 

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

Energy

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.

UAE Plans Floating LNG Import Terminal

State-owned Abu Dhabi National Oil Co. (ADNOC) plans to start a new liquefied natural gas floating import terminal (FSRU) in the second half of this year, three LNG industry sources said.

Glencore to Lift Iranian Fuel Oil at Bandar Mahshahr

Anglo-Swiss commodity trader Glencore has chartered a ship to load Iranian fuel oil at the Iranian port of Bandar Mahshahr in a move that signals the return of

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

LNG

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

UAE Plans Floating LNG Import Terminal

State-owned Abu Dhabi National Oil Co. (ADNOC) plans to start a new liquefied natural gas floating import terminal (FSRU) in the second half of this year, three LNG industry sources said.

Aqualis Offshore Lands Study Job for LNG Barge

Offshore marine and engineering consultancy Aqualis Offshore, part of Oslo-listed Aqualis ASA, has been contracted by Gas Entec Co. Ltd to provide an engineering

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.

 
 
Maritime Security Maritime Standards Pipelines Pod Propulsion Port Authority Salvage Ship Simulators Shipbuilding / Vessel Construction 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: 0.1122 sec (9 req/sec)